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authorsanine <sanine.not@pm.me>2022-04-16 11:55:54 -0500
committersanine <sanine.not@pm.me>2022-04-16 11:55:54 -0500
commit8fb7916a0d0cb007a4c3a4e6a31af58765268ca3 (patch)
tree52b5524a94a5b04e17a1fd7f8aca988ab6d0c75f /src/mesh/assimp-master/contrib/poly2tri
parentdb81b925d776103326128bf629cbdda576a223e7 (diff)
delete src/mesh/assimp-master
Diffstat (limited to 'src/mesh/assimp-master/contrib/poly2tri')
-rw-r--r--src/mesh/assimp-master/contrib/poly2tri/AUTHORS8
-rw-r--r--src/mesh/assimp-master/contrib/poly2tri/LICENSE27
-rw-r--r--src/mesh/assimp-master/contrib/poly2tri/README51
-rw-r--r--src/mesh/assimp-master/contrib/poly2tri/poly2tri/common/shapes.cc365
-rw-r--r--src/mesh/assimp-master/contrib/poly2tri/poly2tri/common/shapes.h327
-rw-r--r--src/mesh/assimp-master/contrib/poly2tri/poly2tri/common/utils.h127
-rw-r--r--src/mesh/assimp-master/contrib/poly2tri/poly2tri/poly2tri.h38
-rw-r--r--src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/advancing_front.cc108
-rw-r--r--src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/advancing_front.h118
-rw-r--r--src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/cdt.cc71
-rw-r--r--src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/cdt.h105
-rw-r--r--src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/sweep.cc807
-rw-r--r--src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/sweep.h285
-rw-r--r--src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/sweep_context.cc211
-rw-r--r--src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/sweep_context.h186
15 files changed, 0 insertions, 2834 deletions
diff --git a/src/mesh/assimp-master/contrib/poly2tri/AUTHORS b/src/mesh/assimp-master/contrib/poly2tri/AUTHORS
deleted file mode 100644
index aa39066..0000000
--- a/src/mesh/assimp-master/contrib/poly2tri/AUTHORS
+++ /dev/null
@@ -1,8 +0,0 @@
-Primary Contributors:
-
- Mason Green <mason.green@gmail.com> (C++, Python)
- Thomas Åhlén <thahlen@gmail.com> (Java)
-
-Other Contributors:
-
-
diff --git a/src/mesh/assimp-master/contrib/poly2tri/LICENSE b/src/mesh/assimp-master/contrib/poly2tri/LICENSE
deleted file mode 100644
index 9417c08..0000000
--- a/src/mesh/assimp-master/contrib/poly2tri/LICENSE
+++ /dev/null
@@ -1,27 +0,0 @@
-Poly2Tri Copyright (c) 2009-2010, Poly2Tri Contributors
-http://code.google.com/p/poly2tri/
-
-All rights reserved.
-Redistribution and use in source and binary forms, with or without modification,
-are permitted provided that the following conditions are met:
-
-* Redistributions of source code must retain the above copyright notice,
- this list of conditions and the following disclaimer.
-* Redistributions in binary form must reproduce the above copyright notice,
- this list of conditions and the following disclaimer in the documentation
- and/or other materials provided with the distribution.
-* Neither the name of Poly2Tri nor the names of its contributors may be
- used to endorse or promote products derived from this software without specific
- prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
-CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/src/mesh/assimp-master/contrib/poly2tri/README b/src/mesh/assimp-master/contrib/poly2tri/README
deleted file mode 100644
index 883e9a5..0000000
--- a/src/mesh/assimp-master/contrib/poly2tri/README
+++ /dev/null
@@ -1,51 +0,0 @@
-==================
-INSTALLATION GUIDE
-==================
-
-------------
-Dependencies
-------------
-
- Core poly2tri lib:
- - Standard Template Library (STL)
-
- Testbed:
- - gcc
- - OpenGL
- - GLFW (http://glfw.sf.net)
- - Python
-
-Waf (http://code.google.com/p/waf/) is used to compile the testbed.
-A waf script (86kb) is included in the repositoty.
-
-----------------------------------------------
-Building the Testbed
-----------------------------------------------
-
-Posix/MSYS environment:
-
- ./waf configure
- ./waf build
-
-Windows command line:
-
- python waf configure
- python waf build
-
-----------------------------------------------
-Running the Examples
-----------------------------------------------
-
-Load data points from a file:
-p2t <filename> <center_x> <center_y> <zoom>
-
-Random distribution of points inside a consrained box:
-p2t random <num_points> <box_radius> <zoom>
-
-Examples:
-
- ./p2t dude.dat 300 500 2
- ./p2t nazca_monkey.dat 0 0 9
-
- ./p2t random 10 100 5.0
- ./p2t random 1000 20000 0.025
diff --git a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/common/shapes.cc b/src/mesh/assimp-master/contrib/poly2tri/poly2tri/common/shapes.cc
deleted file mode 100644
index c94e11c..0000000
--- a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/common/shapes.cc
+++ /dev/null
@@ -1,365 +0,0 @@
-/*
- * Poly2Tri Copyright (c) 2009-2010, Poly2Tri Contributors
- * http://code.google.com/p/poly2tri/
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * * Neither the name of Poly2Tri nor the names of its contributors may be
- * used to endorse or promote products derived from this software without specific
- * prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-#include "shapes.h"
-#include <iostream>
-
-namespace p2t {
-
-Triangle::Triangle(Point& a, Point& b, Point& c)
-{
- points_[0] = &a; points_[1] = &b; points_[2] = &c;
- neighbors_[0] = NULL; neighbors_[1] = NULL; neighbors_[2] = NULL;
- constrained_edge[0] = constrained_edge[1] = constrained_edge[2] = false;
- delaunay_edge[0] = delaunay_edge[1] = delaunay_edge[2] = false;
- interior_ = false;
-}
-
-// Update neighbor pointers
-void Triangle::MarkNeighbor(Point* p1, Point* p2, Triangle* t)
-{
- if ((p1 == points_[2] && p2 == points_[1]) || (p1 == points_[1] && p2 == points_[2]))
- neighbors_[0] = t;
- else if ((p1 == points_[0] && p2 == points_[2]) || (p1 == points_[2] && p2 == points_[0]))
- neighbors_[1] = t;
- else if ((p1 == points_[0] && p2 == points_[1]) || (p1 == points_[1] && p2 == points_[0]))
- neighbors_[2] = t;
- else
- assert(0);
-}
-
-// Exhaustive search to update neighbor pointers
-void Triangle::MarkNeighbor(Triangle& t)
-{
- if (t.Contains(points_[1], points_[2])) {
- neighbors_[0] = &t;
- t.MarkNeighbor(points_[1], points_[2], this);
- } else if (t.Contains(points_[0], points_[2])) {
- neighbors_[1] = &t;
- t.MarkNeighbor(points_[0], points_[2], this);
- } else if (t.Contains(points_[0], points_[1])) {
- neighbors_[2] = &t;
- t.MarkNeighbor(points_[0], points_[1], this);
- }
-}
-
-/**
- * Clears all references to all other triangles and points
- */
-void Triangle::Clear()
-{
- Triangle *t;
- for( int i=0; i<3; i++ )
- {
- t = neighbors_[i];
- if( t != NULL )
- {
- t->ClearNeighbor( this );
- }
- }
- ClearNeighbors();
- points_[0]=points_[1]=points_[2] = NULL;
-}
-
-void Triangle::ClearNeighbor(const Triangle *triangle )
-{
- if( neighbors_[0] == triangle )
- {
- neighbors_[0] = NULL;
- }
- else if( neighbors_[1] == triangle )
- {
- neighbors_[1] = NULL;
- }
- else
- {
- neighbors_[2] = NULL;
- }
-}
-
-void Triangle::ClearNeighbors()
-{
- neighbors_[0] = NULL;
- neighbors_[1] = NULL;
- neighbors_[2] = NULL;
-}
-
-void Triangle::ClearDelunayEdges()
-{
- delaunay_edge[0] = delaunay_edge[1] = delaunay_edge[2] = false;
-}
-
-Point* Triangle::OppositePoint(Triangle& t, const Point& p)
-{
- Point *cw = t.PointCW(p);
- return PointCW(*cw);
-}
-
-// Legalized triangle by rotating clockwise around point(0)
-void Triangle::Legalize(Point& point)
-{
- points_[1] = points_[0];
- points_[0] = points_[2];
- points_[2] = &point;
-}
-
-// Legalize triagnle by rotating clockwise around oPoint
-void Triangle::Legalize(Point& opoint, Point& npoint)
-{
- if (&opoint == points_[0]) {
- points_[1] = points_[0];
- points_[0] = points_[2];
- points_[2] = &npoint;
- } else if (&opoint == points_[1]) {
- points_[2] = points_[1];
- points_[1] = points_[0];
- points_[0] = &npoint;
- } else if (&opoint == points_[2]) {
- points_[0] = points_[2];
- points_[2] = points_[1];
- points_[1] = &npoint;
- } else {
- assert(0);
- }
-}
-
-int Triangle::Index(const Point* p)
-{
- if (p == points_[0]) {
- return 0;
- } else if (p == points_[1]) {
- return 1;
- } else if (p == points_[2]) {
- return 2;
- }
- assert(0);
- return -1;
-}
-
-int Triangle::EdgeIndex(const Point* p1, const Point* p2)
-{
- if (points_[0] == p1) {
- if (points_[1] == p2) {
- return 2;
- } else if (points_[2] == p2) {
- return 1;
- }
- } else if (points_[1] == p1) {
- if (points_[2] == p2) {
- return 0;
- } else if (points_[0] == p2) {
- return 2;
- }
- } else if (points_[2] == p1) {
- if (points_[0] == p2) {
- return 1;
- } else if (points_[1] == p2) {
- return 0;
- }
- }
- return -1;
-}
-
-void Triangle::MarkConstrainedEdge(int index)
-{
- constrained_edge[index] = true;
-}
-
-void Triangle::MarkConstrainedEdge(Edge& edge)
-{
- MarkConstrainedEdge(edge.p, edge.q);
-}
-
-// Mark edge as constrained
-void Triangle::MarkConstrainedEdge(Point* p, Point* q)
-{
- if ((q == points_[0] && p == points_[1]) || (q == points_[1] && p == points_[0])) {
- constrained_edge[2] = true;
- } else if ((q == points_[0] && p == points_[2]) || (q == points_[2] && p == points_[0])) {
- constrained_edge[1] = true;
- } else if ((q == points_[1] && p == points_[2]) || (q == points_[2] && p == points_[1])) {
- constrained_edge[0] = true;
- }
-}
-
-// The point counter-clockwise to given point
-Point* Triangle::PointCW(const Point& point)
-{
- if (&point == points_[0]) {
- return points_[2];
- } else if (&point == points_[1]) {
- return points_[0];
- } else if (&point == points_[2]) {
- return points_[1];
- }
- assert(0);
- return NULL;
-}
-
-// The point counter-clockwise to given point
-Point* Triangle::PointCCW(const Point& point)
-{
- if (&point == points_[0]) {
- return points_[1];
- } else if (&point == points_[1]) {
- return points_[2];
- } else if (&point == points_[2]) {
- return points_[0];
- }
- assert(0);
- return NULL;
-}
-
-// The neighbor clockwise to given point
-Triangle* Triangle::NeighborCW(const Point& point)
-{
- if (&point == points_[0]) {
- return neighbors_[1];
- } else if (&point == points_[1]) {
- return neighbors_[2];
- }
- return neighbors_[0];
-}
-
-// The neighbor counter-clockwise to given point
-Triangle* Triangle::NeighborCCW(const Point& point)
-{
- if (&point == points_[0]) {
- return neighbors_[2];
- } else if (&point == points_[1]) {
- return neighbors_[0];
- }
- return neighbors_[1];
-}
-
-bool Triangle::GetConstrainedEdgeCCW(const Point& p)
-{
- if (&p == points_[0]) {
- return constrained_edge[2];
- } else if (&p == points_[1]) {
- return constrained_edge[0];
- }
- return constrained_edge[1];
-}
-
-bool Triangle::GetConstrainedEdgeCW(const Point& p)
-{
- if (&p == points_[0]) {
- return constrained_edge[1];
- } else if (&p == points_[1]) {
- return constrained_edge[2];
- }
- return constrained_edge[0];
-}
-
-void Triangle::SetConstrainedEdgeCCW(const Point& p, bool ce)
-{
- if (&p == points_[0]) {
- constrained_edge[2] = ce;
- } else if (&p == points_[1]) {
- constrained_edge[0] = ce;
- } else {
- constrained_edge[1] = ce;
- }
-}
-
-void Triangle::SetConstrainedEdgeCW(const Point& p, bool ce)
-{
- if (&p == points_[0]) {
- constrained_edge[1] = ce;
- } else if (&p == points_[1]) {
- constrained_edge[2] = ce;
- } else {
- constrained_edge[0] = ce;
- }
-}
-
-bool Triangle::GetDelunayEdgeCCW(const Point& p)
-{
- if (&p == points_[0]) {
- return delaunay_edge[2];
- } else if (&p == points_[1]) {
- return delaunay_edge[0];
- }
- return delaunay_edge[1];
-}
-
-bool Triangle::GetDelunayEdgeCW(const Point& p)
-{
- if (&p == points_[0]) {
- return delaunay_edge[1];
- } else if (&p == points_[1]) {
- return delaunay_edge[2];
- }
- return delaunay_edge[0];
-}
-
-void Triangle::SetDelunayEdgeCCW(const Point& p, bool e)
-{
- if (&p == points_[0]) {
- delaunay_edge[2] = e;
- } else if (&p == points_[1]) {
- delaunay_edge[0] = e;
- } else {
- delaunay_edge[1] = e;
- }
-}
-
-void Triangle::SetDelunayEdgeCW(const Point& p, bool e)
-{
- if (&p == points_[0]) {
- delaunay_edge[1] = e;
- } else if (&p == points_[1]) {
- delaunay_edge[2] = e;
- } else {
- delaunay_edge[0] = e;
- }
-}
-
-// The neighbor across to given point
-Triangle& Triangle::NeighborAcross(const Point& opoint)
-{
- if (&opoint == points_[0]) {
- return *neighbors_[0];
- } else if (&opoint == points_[1]) {
- return *neighbors_[1];
- }
- return *neighbors_[2];
-}
-
-void Triangle::DebugPrint()
-{
- using namespace std;
- cout << points_[0]->x << "," << points_[0]->y << " ";
- cout << points_[1]->x << "," << points_[1]->y << " ";
- cout << points_[2]->x << "," << points_[2]->y << endl;
-}
-
-}
diff --git a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/common/shapes.h b/src/mesh/assimp-master/contrib/poly2tri/poly2tri/common/shapes.h
deleted file mode 100644
index d3660f7..0000000
--- a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/common/shapes.h
+++ /dev/null
@@ -1,327 +0,0 @@
-/*
- * Poly2Tri Copyright (c) 2009-2010, Poly2Tri Contributors
- * http://code.google.com/p/poly2tri/
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * * Neither the name of Poly2Tri nor the names of its contributors may be
- * used to endorse or promote products derived from this software without specific
- * prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-// Include guard
-#ifndef SHAPES_H
-#define SHAPES_H
-
-#include <vector>
-#include <cstddef>
-#include <stdexcept>
-#include <assert.h>
-#include <cmath>
-#include <string>
-
-namespace p2t {
-
-struct Edge;
-
-struct Point {
-
- double x, y;
-
- /// Default constructor does nothing (for performance).
- Point()
- {
- x = 0.0;
- y = 0.0;
- }
-
- /// The edges this point constitutes an upper ending point
- std::vector<Edge*> edge_list;
-
- /// Construct using coordinates.
- Point(double x, double y) : x(x), y(y) {}
-
- /// Set this point to all zeros.
- void set_zero()
- {
- x = 0.0;
- y = 0.0;
- }
-
- /// Set this point to some specified coordinates.
- void set(double x_, double y_)
- {
- x = x_;
- y = y_;
- }
-
- /// Negate this point.
- Point operator -() const
- {
- Point v;
- v.set(-x, -y);
- return v;
- }
-
- /// Add a point to this point.
- void operator +=(const Point& v)
- {
- x += v.x;
- y += v.y;
- }
-
- /// Subtract a point from this point.
- void operator -=(const Point& v)
- {
- x -= v.x;
- y -= v.y;
- }
-
- /// Multiply this point by a scalar.
- void operator *=(double a)
- {
- x *= a;
- y *= a;
- }
-
- /// Get the length of this point (the norm).
- double Length() const
- {
- return sqrt(x * x + y * y);
- }
-
- /// Convert this point into a unit point. Returns the Length.
- double Normalize()
- {
- const double len = Length();
- x /= len;
- y /= len;
- return len;
- }
-
-};
-
-// Represents a simple polygon's edge
-struct Edge {
-
- Point* p, *q;
-
- /// Constructor
- Edge(Point& p1, Point& p2) : p(&p1), q(&p2)
- {
- if (p1.y > p2.y) {
- q = &p1;
- p = &p2;
- } else if (p1.y == p2.y) {
- if (p1.x > p2.x) {
- q = &p1;
- p = &p2;
- } else if (p1.x == p2.x) {
- // Repeat points
- // ASSIMP_CHANGE (aramis_acg)
- throw std::runtime_error(std::string("repeat points"));
- //assert(false);
- }
- }
-
- q->edge_list.push_back(this);
- }
-};
-
-// Triangle-based data structures are know to have better performance than quad-edge structures
-// See: J. Shewchuk, "Triangle: Engineering a 2D Quality Mesh Generator and Delaunay Triangulator"
-// "Triangulations in CGAL"
-class Triangle {
-public:
-
-/// Constructor
-Triangle(Point& a, Point& b, Point& c);
-
-/// Flags to determine if an edge is a Constrained edge
-bool constrained_edge[3];
-/// Flags to determine if an edge is a Delauney edge
-bool delaunay_edge[3];
-
-Point* GetPoint(int index);
-Point* PointCW(const Point& point);
-Point* PointCCW(const Point& point);
-Point* OppositePoint(Triangle& t, const Point& p);
-
-Triangle* GetNeighbor(int index);
-void MarkNeighbor(Point* p1, Point* p2, Triangle* t);
-void MarkNeighbor(Triangle& t);
-
-void MarkConstrainedEdge(int index);
-void MarkConstrainedEdge(Edge& edge);
-void MarkConstrainedEdge(Point* p, Point* q);
-
-int Index(const Point* p);
-int EdgeIndex(const Point* p1, const Point* p2);
-
-Triangle* NeighborCW(const Point& point);
-Triangle* NeighborCCW(const Point& point);
-bool GetConstrainedEdgeCCW(const Point& p);
-bool GetConstrainedEdgeCW(const Point& p);
-void SetConstrainedEdgeCCW(const Point& p, bool ce);
-void SetConstrainedEdgeCW(const Point& p, bool ce);
-bool GetDelunayEdgeCCW(const Point& p);
-bool GetDelunayEdgeCW(const Point& p);
-void SetDelunayEdgeCCW(const Point& p, bool e);
-void SetDelunayEdgeCW(const Point& p, bool e);
-
-bool Contains(const Point* p);
-bool Contains(const Edge& e);
-bool Contains(const Point* p, const Point* q);
-void Legalize(Point& point);
-void Legalize(Point& opoint, Point& npoint);
-/**
- * Clears all references to all other triangles and points
- */
-void Clear();
-void ClearNeighbor(const Triangle *triangle);
-void ClearNeighbors();
-void ClearDelunayEdges();
-
-inline bool IsInterior();
-inline void IsInterior(bool b);
-
-Triangle& NeighborAcross(const Point& opoint);
-
-void DebugPrint();
-
-private:
-
-/// Triangle points
-Point* points_[3];
-/// Neighbor list
-Triangle* neighbors_[3];
-
-/// Has this triangle been marked as an interior triangle?
-bool interior_;
-};
-
-inline bool cmp(const Point* a, const Point* b)
-{
- if (a->y < b->y) {
- return true;
- } else if (a->y == b->y) {
- // Make sure q is point with greater x value
- if (a->x < b->x) {
- return true;
- }
- }
- return false;
-}
-
-/// Add two points_ component-wise.
-inline Point operator +(const Point& a, const Point& b)
-{
- return Point(a.x + b.x, a.y + b.y);
-}
-
-/// Subtract two points_ component-wise.
-inline Point operator -(const Point& a, const Point& b)
-{
- return Point(a.x - b.x, a.y - b.y);
-}
-
-/// Multiply point by scalar
-inline Point operator *(double s, const Point& a)
-{
- return Point(s * a.x, s * a.y);
-}
-
-inline bool operator ==(const Point& a, const Point& b)
-{
- return a.x == b.x && a.y == b.y;
-}
-
-inline bool operator !=(const Point& a, const Point& b)
-{
- return !(a.x == b.x) && !(a.y == b.y);
-}
-
-/// Peform the dot product on two vectors.
-inline double Dot(const Point& a, const Point& b)
-{
- return a.x * b.x + a.y * b.y;
-}
-
-/// Perform the cross product on two vectors. In 2D this produces a scalar.
-inline double Cross(const Point& a, const Point& b)
-{
- return a.x * b.y - a.y * b.x;
-}
-
-/// Perform the cross product on a point and a scalar. In 2D this produces
-/// a point.
-inline Point Cross(const Point& a, double s)
-{
- return Point(s * a.y, -s * a.x);
-}
-
-/// Perform the cross product on a scalar and a point. In 2D this produces
-/// a point.
-inline Point Cross(double s, const Point& a)
-{
- return Point(-s * a.y, s * a.x);
-}
-
-inline Point* Triangle::GetPoint(int index)
-{
- return points_[index];
-}
-
-inline Triangle* Triangle::GetNeighbor(int index)
-{
- return neighbors_[index];
-}
-
-inline bool Triangle::Contains(const Point* p)
-{
- return p == points_[0] || p == points_[1] || p == points_[2];
-}
-
-inline bool Triangle::Contains(const Edge& e)
-{
- return Contains(e.p) && Contains(e.q);
-}
-
-inline bool Triangle::Contains(const Point* p, const Point* q)
-{
- return Contains(p) && Contains(q);
-}
-
-inline bool Triangle::IsInterior()
-{
- return interior_;
-}
-
-inline void Triangle::IsInterior(bool b)
-{
- interior_ = b;
-}
-
-}
-
-#endif
diff --git a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/common/utils.h b/src/mesh/assimp-master/contrib/poly2tri/poly2tri/common/utils.h
deleted file mode 100644
index 2424c71..0000000
--- a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/common/utils.h
+++ /dev/null
@@ -1,127 +0,0 @@
-/*
- * Poly2Tri Copyright (c) 2009-2010, Poly2Tri Contributors
- * http://code.google.com/p/poly2tri/
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * * Neither the name of Poly2Tri nor the names of its contributors may be
- * used to endorse or promote products derived from this software without specific
- * prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef UTILS_H
-#define UTILS_H
-
-// Otherwise #defines like M_PI are undeclared under Visual Studio
-#define _USE_MATH_DEFINES
-
-#include <exception>
-#include <math.h>
-
-// C99 removes M_PI from math.h
-#ifndef M_PI
-#define M_PI 3.14159265358979323846264338327
-#endif
-
-namespace p2t {
-
-const double PI_3div4 = 3 * M_PI / 4;
-const double PI_div2 = 1.57079632679489661923;
-const double EPSILON = 1e-12;
-
-enum Orientation { CW, CCW, COLLINEAR };
-
-/**
- * Forumla to calculate signed area<br>
- * Positive if CCW<br>
- * Negative if CW<br>
- * 0 if collinear<br>
- * <pre>
- * A[P1,P2,P3] = (x1*y2 - y1*x2) + (x2*y3 - y2*x3) + (x3*y1 - y3*x1)
- * = (x1-x3)*(y2-y3) - (y1-y3)*(x2-x3)
- * </pre>
- */
-Orientation Orient2d(const Point& pa, const Point& pb, const Point& pc)
-{
- double detleft = (pa.x - pc.x) * (pb.y - pc.y);
- double detright = (pa.y - pc.y) * (pb.x - pc.x);
- double val = detleft - detright;
- if (val > -EPSILON && val < EPSILON) {
- return COLLINEAR;
- } else if (val > 0) {
- return CCW;
- }
- return CW;
-}
-
-/*
-bool InScanArea(Point& pa, Point& pb, Point& pc, Point& pd)
-{
- double pdx = pd.x;
- double pdy = pd.y;
- double adx = pa.x - pdx;
- double ady = pa.y - pdy;
- double bdx = pb.x - pdx;
- double bdy = pb.y - pdy;
-
- double adxbdy = adx * bdy;
- double bdxady = bdx * ady;
- double oabd = adxbdy - bdxady;
-
- if (oabd <= EPSILON) {
- return false;
- }
-
- double cdx = pc.x - pdx;
- double cdy = pc.y - pdy;
-
- double cdxady = cdx * ady;
- double adxcdy = adx * cdy;
- double ocad = cdxady - adxcdy;
-
- if (ocad <= EPSILON) {
- return false;
- }
-
- return true;
-}
-
-*/
-
-bool InScanArea(const Point& pa, const Point& pb, const Point& pc, const Point& pd)
-{
- double oadb = (pa.x - pb.x)*(pd.y - pb.y) - (pd.x - pb.x)*(pa.y - pb.y);
- if (oadb >= -EPSILON) {
- return false;
- }
-
- double oadc = (pa.x - pc.x)*(pd.y - pc.y) - (pd.x - pc.x)*(pa.y - pc.y);
- if (oadc <= EPSILON) {
- return false;
- }
- return true;
-}
-
-}
-
-#endif
diff --git a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/poly2tri.h b/src/mesh/assimp-master/contrib/poly2tri/poly2tri/poly2tri.h
deleted file mode 100644
index ba5cc15..0000000
--- a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/poly2tri.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * Poly2Tri Copyright (c) 2009-2010, Poly2Tri Contributors
- * http://code.google.com/p/poly2tri/
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * * Neither the name of Poly2Tri nor the names of its contributors may be
- * used to endorse or promote products derived from this software without specific
- * prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef POLY2TRI_H
-#define POLY2TRI_H
-
-#include "common/shapes.h"
-#include "sweep/cdt.h"
-
-#endif
diff --git a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/advancing_front.cc b/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/advancing_front.cc
deleted file mode 100644
index 9739bab..0000000
--- a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/advancing_front.cc
+++ /dev/null
@@ -1,108 +0,0 @@
-/*
- * Poly2Tri Copyright (c) 2009-2010, Poly2Tri Contributors
- * http://code.google.com/p/poly2tri/
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * * Neither the name of Poly2Tri nor the names of its contributors may be
- * used to endorse or promote products derived from this software without specific
- * prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-#include "advancing_front.h"
-
-namespace p2t {
-
-AdvancingFront::AdvancingFront(Node& head, Node& tail)
-{
- head_ = &head;
- tail_ = &tail;
- search_node_ = &head;
-}
-
-Node* AdvancingFront::LocateNode(double x)
-{
- Node* node = search_node_;
-
- if (x < node->value) {
- while ((node = node->prev) != NULL) {
- if (x >= node->value) {
- search_node_ = node;
- return node;
- }
- }
- } else {
- while ((node = node->next) != NULL) {
- if (x < node->value) {
- search_node_ = node->prev;
- return node->prev;
- }
- }
- }
- return NULL;
-}
-
-Node* AdvancingFront::FindSearchNode(double x)
-{
- (void)x; // suppress compiler warnings "unused parameter 'x'"
- // TODO: implement BST index
- return search_node_;
-}
-
-Node* AdvancingFront::LocatePoint(const Point* point)
-{
- const double px = point->x;
- Node* node = FindSearchNode(px);
- const double nx = node->point->x;
-
- if (px == nx) {
- if (point != node->point) {
- // We might have two nodes with same x value for a short time
- if (point == node->prev->point) {
- node = node->prev;
- } else if (point == node->next->point) {
- node = node->next;
- } else {
- assert(0);
- }
- }
- } else if (px < nx) {
- while ((node = node->prev) != NULL) {
- if (point == node->point) {
- break;
- }
- }
- } else {
- while ((node = node->next) != NULL) {
- if (point == node->point)
- break;
- }
- }
- if(node) search_node_ = node;
- return node;
-}
-
-AdvancingFront::~AdvancingFront()
-{
-}
-
-}
diff --git a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/advancing_front.h b/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/advancing_front.h
deleted file mode 100644
index 3bfec53..0000000
--- a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/advancing_front.h
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * Poly2Tri Copyright (c) 2009-2010, Poly2Tri Contributors
- * http://code.google.com/p/poly2tri/
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * * Neither the name of Poly2Tri nor the names of its contributors may be
- * used to endorse or promote products derived from this software without specific
- * prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef ADVANCED_FRONT_H
-#define ADVANCED_FRONT_H
-
-#include "../common/shapes.h"
-
-namespace p2t {
-
-struct Node;
-
-// Advancing front node
-struct Node {
- Point* point;
- Triangle* triangle;
-
- Node* next;
- Node* prev;
-
- double value;
-
- Node(Point& p) : point(&p), triangle(NULL), next(NULL), prev(NULL), value(p.x)
- {
- }
-
- Node(Point& p, Triangle& t) : point(&p), triangle(&t), next(NULL), prev(NULL), value(p.x)
- {
- }
-
-};
-
-// Advancing front
-class AdvancingFront {
-public:
-
-AdvancingFront(Node& head, Node& tail);
-// Destructor
-~AdvancingFront();
-
-Node* head();
-void set_head(Node* node);
-Node* tail();
-void set_tail(Node* node);
-Node* search();
-void set_search(Node* node);
-
-/// Locate insertion point along advancing front
-Node* LocateNode(double x);
-
-Node* LocatePoint(const Point* point);
-
-private:
-
-Node* head_, *tail_, *search_node_;
-
-Node* FindSearchNode(double x);
-};
-
-inline Node* AdvancingFront::head()
-{
- return head_;
-}
-inline void AdvancingFront::set_head(Node* node)
-{
- head_ = node;
-}
-
-inline Node* AdvancingFront::tail()
-{
- return tail_;
-}
-inline void AdvancingFront::set_tail(Node* node)
-{
- tail_ = node;
-}
-
-inline Node* AdvancingFront::search()
-{
- return search_node_;
-}
-
-inline void AdvancingFront::set_search(Node* node)
-{
- search_node_ = node;
-}
-
-}
-
-#endif
diff --git a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/cdt.cc b/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/cdt.cc
deleted file mode 100644
index b79f5a8..0000000
--- a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/cdt.cc
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Poly2Tri Copyright (c) 2009-2010, Poly2Tri Contributors
- * http://code.google.com/p/poly2tri/
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * * Neither the name of Poly2Tri nor the names of its contributors may be
- * used to endorse or promote products derived from this software without specific
- * prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-#include "cdt.h"
-
-namespace p2t {
-
-CDT::CDT(const std::vector<Point*>& polyline)
-{
- sweep_context_ = new SweepContext(polyline);
- sweep_ = new Sweep;
-}
-
-void CDT::AddHole(const std::vector<Point*>& polyline)
-{
- sweep_context_->AddHole(polyline);
-}
-
-void CDT::AddPoint(Point* point) {
- sweep_context_->AddPoint(point);
-}
-
-void CDT::Triangulate()
-{
- sweep_->Triangulate(*sweep_context_);
-}
-
-std::vector<p2t::Triangle*> CDT::GetTriangles()
-{
- return sweep_context_->GetTriangles();
-}
-
-std::list<p2t::Triangle*> CDT::GetMap()
-{
- return sweep_context_->GetMap();
-}
-
-CDT::~CDT()
-{
- delete sweep_context_;
- delete sweep_;
-}
-
-}
diff --git a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/cdt.h b/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/cdt.h
deleted file mode 100644
index 4a9a292..0000000
--- a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/cdt.h
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * Poly2Tri Copyright (c) 2009-2010, Poly2Tri Contributors
- * http://code.google.com/p/poly2tri/
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * * Neither the name of Poly2Tri nor the names of its contributors may be
- * used to endorse or promote products derived from this software without specific
- * prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef CDT_H
-#define CDT_H
-
-#include "advancing_front.h"
-#include "sweep_context.h"
-#include "sweep.h"
-
-/**
- *
- * @author Mason Green <mason.green@gmail.com>
- *
- */
-
-namespace p2t {
-
-class CDT
-{
-public:
-
- /**
- * Constructor - add polyline with non repeating points
- *
- * @param polyline
- */
- CDT(const std::vector<Point*>& polyline);
-
- /**
- * Destructor - clean up memory
- */
- ~CDT();
-
- /**
- * Add a hole
- *
- * @param polyline
- */
- void AddHole(const std::vector<Point*>& polyline);
-
- /**
- * Add a steiner point
- *
- * @param point
- */
- void AddPoint(Point* point);
-
- /**
- * Triangulate - do this AFTER you've added the polyline, holes, and Steiner points
- */
- void Triangulate();
-
- /**
- * Get CDT triangles
- */
- std::vector<Triangle*> GetTriangles();
-
- /**
- * Get triangle map
- */
- std::list<Triangle*> GetMap();
-
- private:
-
- /**
- * Internals
- */
-
- SweepContext* sweep_context_;
- Sweep* sweep_;
-
-};
-
-}
-
-#endif
diff --git a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/sweep.cc b/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/sweep.cc
deleted file mode 100644
index 8e3d794..0000000
--- a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/sweep.cc
+++ /dev/null
@@ -1,807 +0,0 @@
-/*
- * Poly2Tri Copyright (c) 2009-2010, Poly2Tri Contributors
- * http://code.google.com/p/poly2tri/
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * * Neither the name of Poly2Tri nor the names of its contributors may be
- * used to endorse or promote products derived from this software without specific
- * prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-#include <stdexcept>
-#include "sweep.h"
-#include "sweep_context.h"
-#include "advancing_front.h"
-#include "../common/utils.h"
-
-namespace p2t {
-
-#ifdef _MSC_VER
-# pragma warning(push)
-# pragma warning( disable : 4702 )
-#endif // _MSC_VER
-
-// Triangulate simple polygon with holes
-void Sweep::Triangulate(SweepContext& tcx)
-{
- tcx.InitTriangulation();
- tcx.CreateAdvancingFront(nodes_);
- // Sweep points; build mesh
- SweepPoints(tcx);
- // Clean up
- FinalizationPolygon(tcx);
-}
-
-void Sweep::SweepPoints(SweepContext& tcx)
-{
- for (size_t i = 1; i < tcx.point_count(); i++) {
- Point& point = *tcx.GetPoint(i);
- Node* node = &PointEvent(tcx, point);
- for (unsigned int ii = 0; ii < point.edge_list.size(); ii++) {
- EdgeEvent(tcx, point.edge_list[ii], node);
- }
- }
-}
-
-void Sweep::FinalizationPolygon(SweepContext& tcx)
-{
- // Get an Internal triangle to start with
- Triangle* t = tcx.front()->head()->next->triangle;
- Point* p = tcx.front()->head()->next->point;
- while (!t->GetConstrainedEdgeCW(*p)) {
- t = t->NeighborCCW(*p);
- }
-
- // Collect interior triangles constrained by edges
- tcx.MeshClean(*t);
-}
-
-Node& Sweep::PointEvent(SweepContext& tcx, Point& point)
-{
- Node& node = tcx.LocateNode(point);
- Node& new_node = NewFrontTriangle(tcx, point, node);
-
- // Only need to check +epsilon since point never have smaller
- // x value than node due to how we fetch nodes from the front
- if (point.x <= node.point->x + EPSILON) {
- Fill(tcx, node);
- }
-
- //tcx.AddNode(new_node);
-
- FillAdvancingFront(tcx, new_node);
- return new_node;
-}
-
-void Sweep::EdgeEvent(SweepContext& tcx, Edge* edge, Node* node)
-{
- tcx.edge_event.constrained_edge = edge;
- tcx.edge_event.right = (edge->p->x > edge->q->x);
-
- if (IsEdgeSideOfTriangle(*node->triangle, *edge->p, *edge->q)) {
- return;
- }
-
- // For now we will do all needed filling
- // TODO: integrate with flip process might give some better performance
- // but for now this avoid the issue with cases that needs both flips and fills
- FillEdgeEvent(tcx, edge, node);
- EdgeEvent(tcx, *edge->p, *edge->q, node->triangle, *edge->q);
-}
-
-void Sweep::EdgeEvent(SweepContext& tcx, Point& ep, Point& eq, Triangle* triangle, Point& point)
-{
- if (IsEdgeSideOfTriangle(*triangle, ep, eq)) {
- return;
- }
-
- Point* p1 = triangle->PointCCW(point);
- Orientation o1 = Orient2d(eq, *p1, ep);
- if (o1 == COLLINEAR) {
- // ASSIMP_CHANGE (aramis_acg)
- throw std::runtime_error("EdgeEvent - collinear points not supported");
- if( triangle->Contains(&eq, p1)) {
- triangle->MarkConstrainedEdge(&eq, p1 );
- // We are modifying the constraint maybe it would be better to
- // not change the given constraint and just keep a variable for the new constraint
- tcx.edge_event.constrained_edge->q = p1;
- triangle = &triangle->NeighborAcross(point);
- EdgeEvent( tcx, ep, *p1, triangle, *p1 );
- } else {
- // ASSIMP_CHANGE (aramis_acg)
- throw std::runtime_error("EdgeEvent - collinear points not supported");
- }
- return;
- }
-
- Point* p2 = triangle->PointCW(point);
- Orientation o2 = Orient2d(eq, *p2, ep);
- if (o2 == COLLINEAR) {
- // ASSIMP_CHANGE (aramis_acg)
- throw std::runtime_error("EdgeEvent - collinear points not supported");
-
- if( triangle->Contains(&eq, p2)) {
- triangle->MarkConstrainedEdge(&eq, p2 );
- // We are modifying the constraint maybe it would be better to
- // not change the given constraint and just keep a variable for the new constraint
- tcx.edge_event.constrained_edge->q = p2;
- triangle = &triangle->NeighborAcross(point);
- EdgeEvent( tcx, ep, *p2, triangle, *p2 );
- } else {
- // ASSIMP_CHANGE (aramis_acg)
- throw std::runtime_error("EdgeEvent - collinear points not supported");
- }
- return;
- }
-
- if (o1 == o2) {
- // Need to decide if we are rotating CW or CCW to get to a triangle
- // that will cross edge
- if (o1 == CW) {
- triangle = triangle->NeighborCCW(point);
- } else{
- triangle = triangle->NeighborCW(point);
- }
- EdgeEvent(tcx, ep, eq, triangle, point);
- } else {
- // This triangle crosses constraint so lets flippin start!
- FlipEdgeEvent(tcx, ep, eq, triangle, point);
- }
-}
-
-bool Sweep::IsEdgeSideOfTriangle(Triangle& triangle, Point& ep, Point& eq)
-{
- const int index = triangle.EdgeIndex(&ep, &eq);
-
- if (index != -1) {
- triangle.MarkConstrainedEdge(index);
- Triangle* t = triangle.GetNeighbor(index);
- if (t) {
- t->MarkConstrainedEdge(&ep, &eq);
- }
- return true;
- }
- return false;
-}
-
-Node& Sweep::NewFrontTriangle(SweepContext& tcx, Point& point, Node& node)
-{
- Triangle* triangle = new Triangle(point, *node.point, *node.next->point);
-
- triangle->MarkNeighbor(*node.triangle);
- tcx.AddToMap(triangle);
-
- Node* new_node = new Node(point);
- nodes_.push_back(new_node);
-
- new_node->next = node.next;
- new_node->prev = &node;
- node.next->prev = new_node;
- node.next = new_node;
-
- if (!Legalize(tcx, *triangle)) {
- tcx.MapTriangleToNodes(*triangle);
- }
-
- return *new_node;
-}
-
-void Sweep::Fill(SweepContext& tcx, Node& node)
-{
- Triangle* triangle = new Triangle(*node.prev->point, *node.point, *node.next->point);
-
- // TODO: should copy the constrained_edge value from neighbor triangles
- // for now constrained_edge values are copied during the legalize
- triangle->MarkNeighbor(*node.prev->triangle);
- triangle->MarkNeighbor(*node.triangle);
-
- tcx.AddToMap(triangle);
-
- // Update the advancing front
- node.prev->next = node.next;
- node.next->prev = node.prev;
-
- // If it was legalized the triangle has already been mapped
- if (!Legalize(tcx, *triangle)) {
- tcx.MapTriangleToNodes(*triangle);
- }
-
-}
-
-void Sweep::FillAdvancingFront(SweepContext& tcx, Node& n)
-{
-
- // Fill right holes
- Node* node = n.next;
-
- while (node->next) {
- // if HoleAngle exceeds 90 degrees then break.
- if (LargeHole_DontFill(node)) break;
- Fill(tcx, *node);
- node = node->next;
- }
-
- // Fill left holes
- node = n.prev;
-
- while (node->prev) {
- // if HoleAngle exceeds 90 degrees then break.
- if (LargeHole_DontFill(node)) break;
- Fill(tcx, *node);
- node = node->prev;
- }
-
- // Fill right basins
- if (n.next && n.next->next) {
- const double angle = BasinAngle(n);
- if (angle < PI_3div4) {
- FillBasin(tcx, n);
- }
- }
-}
-
-// True if HoleAngle exceeds 90 degrees.
-bool Sweep::LargeHole_DontFill(const Node* node) const {
-
- const Node* nextNode = node->next;
- const Node* prevNode = node->prev;
- if (!AngleExceeds90Degrees(node->point, nextNode->point, prevNode->point))
- return false;
-
- // Check additional points on front.
- const Node* next2Node = nextNode->next;
- // "..Plus.." because only want angles on same side as point being added.
- if ((next2Node != NULL) && !AngleExceedsPlus90DegreesOrIsNegative(node->point, next2Node->point, prevNode->point))
- return false;
-
- const Node* prev2Node = prevNode->prev;
- // "..Plus.." because only want angles on same side as point being added.
- if ((prev2Node != NULL) && !AngleExceedsPlus90DegreesOrIsNegative(node->point, nextNode->point, prev2Node->point))
- return false;
-
- return true;
-}
-
-bool Sweep::AngleExceeds90Degrees(const Point* origin, const Point* pa, const Point* pb) const {
- const double angle = Angle(origin, pa, pb);
- return ((angle > PI_div2) || (angle < -PI_div2));
-}
-
-bool Sweep::AngleExceedsPlus90DegreesOrIsNegative(const Point* origin, const Point* pa, const Point* pb) const {
- const double angle = Angle(origin, pa, pb);
- return (angle > PI_div2) || (angle < 0);
-}
-
-double Sweep::Angle(const Point* origin, const Point* pa, const Point* pb) const {
- /* Complex plane
- * ab = cosA +i*sinA
- * ab = (ax + ay*i)(bx + by*i) = (ax*bx + ay*by) + i(ax*by-ay*bx)
- * atan2(y,x) computes the principal value of the argument function
- * applied to the complex number x+iy
- * Where x = ax*bx + ay*by
- * y = ax*by - ay*bx
- */
- const double px = origin->x;
- const double py = origin->y;
- const double ax = pa->x- px;
- const double ay = pa->y - py;
- const double bx = pb->x - px;
- const double by = pb->y - py;
- const double x = ax * by - ay * bx;
- const double y = ax * bx + ay * by;
- return atan2(x, y);
-}
-
-double Sweep::BasinAngle(const Node& node) const
-{
- const double ax = node.point->x - node.next->next->point->x;
- const double ay = node.point->y - node.next->next->point->y;
- return atan2(ay, ax);
-}
-
-double Sweep::HoleAngle(const Node& node) const
-{
- /* Complex plane
- * ab = cosA +i*sinA
- * ab = (ax + ay*i)(bx + by*i) = (ax*bx + ay*by) + i(ax*by-ay*bx)
- * atan2(y,x) computes the principal value of the argument function
- * applied to the complex number x+iy
- * Where x = ax*bx + ay*by
- * y = ax*by - ay*bx
- */
- const double ax = node.next->point->x - node.point->x;
- const double ay = node.next->point->y - node.point->y;
- const double bx = node.prev->point->x - node.point->x;
- const double by = node.prev->point->y - node.point->y;
- return atan2(ax * by - ay * bx, ax * bx + ay * by);
-}
-
-bool Sweep::Legalize(SweepContext& tcx, Triangle& t)
-{
- // To legalize a triangle we start by finding if any of the three edges
- // violate the Delaunay condition
- for (int i = 0; i < 3; i++) {
- if (t.delaunay_edge[i])
- continue;
-
- Triangle* ot = t.GetNeighbor(i);
-
- if (ot) {
- Point* p = t.GetPoint(i);
- Point* op = ot->OppositePoint(t, *p);
- int oi = ot->Index(op);
-
- // If this is a Constrained Edge or a Delaunay Edge(only during recursive legalization)
- // then we should not try to legalize
- if (ot->constrained_edge[oi] || ot->delaunay_edge[oi]) {
- t.constrained_edge[i] = ot->constrained_edge[oi];
- continue;
- }
-
- bool inside = Incircle(*p, *t.PointCCW(*p), *t.PointCW(*p), *op);
-
- if (inside) {
- // Lets mark this shared edge as Delaunay
- t.delaunay_edge[i] = true;
- ot->delaunay_edge[oi] = true;
-
- // Lets rotate shared edge one vertex CW to legalize it
- RotateTrianglePair(t, *p, *ot, *op);
-
- // We now got one valid Delaunay Edge shared by two triangles
- // This gives us 4 new edges to check for Delaunay
-
- // Make sure that triangle to node mapping is done only one time for a specific triangle
- bool not_legalized = !Legalize(tcx, t);
- if (not_legalized) {
- tcx.MapTriangleToNodes(t);
- }
-
- not_legalized = !Legalize(tcx, *ot);
- if (not_legalized)
- tcx.MapTriangleToNodes(*ot);
-
- // Reset the Delaunay edges, since they only are valid Delaunay edges
- // until we add a new triangle or point.
- // XXX: need to think about this. Can these edges be tried after we
- // return to previous recursive level?
- t.delaunay_edge[i] = false;
- ot->delaunay_edge[oi] = false;
-
- // If triangle have been legalized no need to check the other edges since
- // the recursive legalization will handles those so we can end here.
- return true;
- }
- }
- }
- return false;
-}
-
-bool Sweep::Incircle(const Point& pa, const Point& pb, const Point& pc, const Point& pd) const
-{
- const double adx = pa.x - pd.x;
- const double ady = pa.y - pd.y;
- const double bdx = pb.x - pd.x;
- const double bdy = pb.y - pd.y;
-
- const double adxbdy = adx * bdy;
- const double bdxady = bdx * ady;
- const double oabd = adxbdy - bdxady;
-
- if (oabd <= 0)
- return false;
-
- const double cdx = pc.x - pd.x;
- const double cdy = pc.y - pd.y;
-
- const double cdxady = cdx * ady;
- const double adxcdy = adx * cdy;
- const double ocad = cdxady - adxcdy;
-
- if (ocad <= 0)
- return false;
-
- const double bdxcdy = bdx * cdy;
- const double cdxbdy = cdx * bdy;
-
- const double alift = adx * adx + ady * ady;
- const double blift = bdx * bdx + bdy * bdy;
- const double clift = cdx * cdx + cdy * cdy;
-
- const double det = alift * (bdxcdy - cdxbdy) + blift * ocad + clift * oabd;
-
- return det > 0;
-}
-
-void Sweep::RotateTrianglePair(Triangle& t, Point& p, Triangle& ot, Point& op) const
-{
- Triangle* n1, *n2, *n3, *n4;
- n1 = t.NeighborCCW(p);
- n2 = t.NeighborCW(p);
- n3 = ot.NeighborCCW(op);
- n4 = ot.NeighborCW(op);
-
- bool ce1, ce2, ce3, ce4;
- ce1 = t.GetConstrainedEdgeCCW(p);
- ce2 = t.GetConstrainedEdgeCW(p);
- ce3 = ot.GetConstrainedEdgeCCW(op);
- ce4 = ot.GetConstrainedEdgeCW(op);
-
- bool de1, de2, de3, de4;
- de1 = t.GetDelunayEdgeCCW(p);
- de2 = t.GetDelunayEdgeCW(p);
- de3 = ot.GetDelunayEdgeCCW(op);
- de4 = ot.GetDelunayEdgeCW(op);
-
- t.Legalize(p, op);
- ot.Legalize(op, p);
-
- // Remap delaunay_edge
- ot.SetDelunayEdgeCCW(p, de1);
- t.SetDelunayEdgeCW(p, de2);
- t.SetDelunayEdgeCCW(op, de3);
- ot.SetDelunayEdgeCW(op, de4);
-
- // Remap constrained_edge
- ot.SetConstrainedEdgeCCW(p, ce1);
- t.SetConstrainedEdgeCW(p, ce2);
- t.SetConstrainedEdgeCCW(op, ce3);
- ot.SetConstrainedEdgeCW(op, ce4);
-
- // Remap neighbors
- // XXX: might optimize the markNeighbor by keeping track of
- // what side should be assigned to what neighbor after the
- // rotation. Now mark neighbor does lots of testing to find
- // the right side.
- t.ClearNeighbors();
- ot.ClearNeighbors();
- if (n1) ot.MarkNeighbor(*n1);
- if (n2) t.MarkNeighbor(*n2);
- if (n3) t.MarkNeighbor(*n3);
- if (n4) ot.MarkNeighbor(*n4);
- t.MarkNeighbor(ot);
-}
-
-void Sweep::FillBasin(SweepContext& tcx, Node& node)
-{
- if (Orient2d(*node.point, *node.next->point, *node.next->next->point) == CCW) {
- tcx.basin.left_node = node.next->next;
- } else {
- tcx.basin.left_node = node.next;
- }
-
- // Find the bottom and right node
- tcx.basin.bottom_node = tcx.basin.left_node;
- while (tcx.basin.bottom_node->next
- && tcx.basin.bottom_node->point->y >= tcx.basin.bottom_node->next->point->y) {
- tcx.basin.bottom_node = tcx.basin.bottom_node->next;
- }
- if (tcx.basin.bottom_node == tcx.basin.left_node) {
- // No valid basin
- return;
- }
-
- tcx.basin.right_node = tcx.basin.bottom_node;
- while (tcx.basin.right_node->next
- && tcx.basin.right_node->point->y < tcx.basin.right_node->next->point->y) {
- tcx.basin.right_node = tcx.basin.right_node->next;
- }
- if (tcx.basin.right_node == tcx.basin.bottom_node) {
- // No valid basins
- return;
- }
-
- tcx.basin.width = tcx.basin.right_node->point->x - tcx.basin.left_node->point->x;
- tcx.basin.left_highest = tcx.basin.left_node->point->y > tcx.basin.right_node->point->y;
-
- FillBasinReq(tcx, tcx.basin.bottom_node);
-}
-
-void Sweep::FillBasinReq(SweepContext& tcx, Node* node)
-{
- // if shallow stop filling
- if (IsShallow(tcx, *node)) {
- return;
- }
-
- Fill(tcx, *node);
-
- if (node->prev == tcx.basin.left_node && node->next == tcx.basin.right_node) {
- return;
- } else if (node->prev == tcx.basin.left_node) {
- Orientation o = Orient2d(*node->point, *node->next->point, *node->next->next->point);
- if (o == CW) {
- return;
- }
- node = node->next;
- } else if (node->next == tcx.basin.right_node) {
- Orientation o = Orient2d(*node->point, *node->prev->point, *node->prev->prev->point);
- if (o == CCW) {
- return;
- }
- node = node->prev;
- } else {
- // Continue with the neighbor node with lowest Y value
- if (node->prev->point->y < node->next->point->y) {
- node = node->prev;
- } else {
- node = node->next;
- }
- }
-
- FillBasinReq(tcx, node);
-}
-
-bool Sweep::IsShallow(SweepContext& tcx, Node& node)
-{
- double height;
-
- if (tcx.basin.left_highest) {
- height = tcx.basin.left_node->point->y - node.point->y;
- } else {
- height = tcx.basin.right_node->point->y - node.point->y;
- }
-
- // if shallow stop filling
- if (tcx.basin.width > height) {
- return true;
- }
- return false;
-}
-
-void Sweep::FillEdgeEvent(SweepContext& tcx, Edge* edge, Node* node)
-{
- if (tcx.edge_event.right) {
- FillRightAboveEdgeEvent(tcx, edge, node);
- } else {
- FillLeftAboveEdgeEvent(tcx, edge, node);
- }
-}
-
-void Sweep::FillRightAboveEdgeEvent(SweepContext& tcx, Edge* edge, Node* node)
-{
- while (node->next->point->x < edge->p->x) {
- // Check if next node is below the edge
- if (Orient2d(*edge->q, *node->next->point, *edge->p) == CCW) {
- FillRightBelowEdgeEvent(tcx, edge, *node);
- } else {
- node = node->next;
- }
- }
-}
-
-void Sweep::FillRightBelowEdgeEvent(SweepContext& tcx, Edge* edge, Node& node)
-{
- if (node.point->x < edge->p->x) {
- if (Orient2d(*node.point, *node.next->point, *node.next->next->point) == CCW) {
- // Concave
- FillRightConcaveEdgeEvent(tcx, edge, node);
- } else{
- // Convex
- FillRightConvexEdgeEvent(tcx, edge, node);
- // Retry this one
- FillRightBelowEdgeEvent(tcx, edge, node);
- }
- }
-}
-
-void Sweep::FillRightConcaveEdgeEvent(SweepContext& tcx, Edge* edge, Node& node)
-{
- Fill(tcx, *node.next);
- if (node.next->point != edge->p) {
- // Next above or below edge?
- if (Orient2d(*edge->q, *node.next->point, *edge->p) == CCW) {
- // Below
- if (Orient2d(*node.point, *node.next->point, *node.next->next->point) == CCW) {
- // Next is concave
- FillRightConcaveEdgeEvent(tcx, edge, node);
- } else {
- // Next is convex
- }
- }
- }
-
-}
-
-void Sweep::FillRightConvexEdgeEvent(SweepContext& tcx, Edge* edge, Node& node)
-{
- // Next concave or convex?
- if (Orient2d(*node.next->point, *node.next->next->point, *node.next->next->next->point) == CCW) {
- // Concave
- FillRightConcaveEdgeEvent(tcx, edge, *node.next);
- } else{
- // Convex
- // Next above or below edge?
- if (Orient2d(*edge->q, *node.next->next->point, *edge->p) == CCW) {
- // Below
- FillRightConvexEdgeEvent(tcx, edge, *node.next);
- } else{
- // Above
- }
- }
-}
-
-void Sweep::FillLeftAboveEdgeEvent(SweepContext& tcx, Edge* edge, Node* node)
-{
- while (node->prev->point->x > edge->p->x) {
- // Check if next node is below the edge
- if (Orient2d(*edge->q, *node->prev->point, *edge->p) == CW) {
- FillLeftBelowEdgeEvent(tcx, edge, *node);
- } else {
- node = node->prev;
- }
- }
-}
-
-void Sweep::FillLeftBelowEdgeEvent(SweepContext& tcx, Edge* edge, Node& node)
-{
- if (node.point->x > edge->p->x) {
- if (Orient2d(*node.point, *node.prev->point, *node.prev->prev->point) == CW) {
- // Concave
- FillLeftConcaveEdgeEvent(tcx, edge, node);
- } else {
- // Convex
- FillLeftConvexEdgeEvent(tcx, edge, node);
- // Retry this one
- FillLeftBelowEdgeEvent(tcx, edge, node);
- }
- }
-}
-
-void Sweep::FillLeftConvexEdgeEvent(SweepContext& tcx, Edge* edge, Node& node)
-{
- // Next concave or convex?
- if (Orient2d(*node.prev->point, *node.prev->prev->point, *node.prev->prev->prev->point) == CW) {
- // Concave
- FillLeftConcaveEdgeEvent(tcx, edge, *node.prev);
- } else{
- // Convex
- // Next above or below edge?
- if (Orient2d(*edge->q, *node.prev->prev->point, *edge->p) == CW) {
- // Below
- FillLeftConvexEdgeEvent(tcx, edge, *node.prev);
- } else{
- // Above
- }
- }
-}
-
-void Sweep::FillLeftConcaveEdgeEvent(SweepContext& tcx, Edge* edge, Node& node)
-{
- Fill(tcx, *node.prev);
- if (node.prev->point != edge->p) {
- // Next above or below edge?
- if (Orient2d(*edge->q, *node.prev->point, *edge->p) == CW) {
- // Below
- if (Orient2d(*node.point, *node.prev->point, *node.prev->prev->point) == CW) {
- // Next is concave
- FillLeftConcaveEdgeEvent(tcx, edge, node);
- } else{
- // Next is convex
- }
- }
- }
-
-}
-
-void Sweep::FlipEdgeEvent(SweepContext& tcx, Point& ep, Point& eq, Triangle* t, Point& p)
-{
- Triangle& ot = t->NeighborAcross(p);
- Point& op = *ot.OppositePoint(*t, p);
-
- if (InScanArea(p, *t->PointCCW(p), *t->PointCW(p), op)) {
- // Lets rotate shared edge one vertex CW
- RotateTrianglePair(*t, p, ot, op);
- tcx.MapTriangleToNodes(*t);
- tcx.MapTriangleToNodes(ot);
-
- if (p == eq && op == ep) {
- if (eq == *tcx.edge_event.constrained_edge->q && ep == *tcx.edge_event.constrained_edge->p) {
- t->MarkConstrainedEdge(&ep, &eq);
- ot.MarkConstrainedEdge(&ep, &eq);
- Legalize(tcx, *t);
- Legalize(tcx, ot);
- } else {
- // XXX: I think one of the triangles should be legalized here?
- }
- } else {
- Orientation o = Orient2d(eq, op, ep);
- t = &NextFlipTriangle(tcx, (int)o, *t, ot, p, op);
- FlipEdgeEvent(tcx, ep, eq, t, p);
- }
- } else {
- Point& newP = NextFlipPoint(ep, eq, ot, op);
- FlipScanEdgeEvent(tcx, ep, eq, *t, ot, newP);
- EdgeEvent(tcx, ep, eq, t, p);
- }
-}
-
-Triangle& Sweep::NextFlipTriangle(SweepContext& tcx, int o, Triangle& t, Triangle& ot, Point& p, Point& op)
-{
- if (o == CCW) {
- // ot is not crossing edge after flip
- int edge_index = ot.EdgeIndex(&p, &op);
- ot.delaunay_edge[edge_index] = true;
- Legalize(tcx, ot);
- ot.ClearDelunayEdges();
- return t;
- }
-
- // t is not crossing edge after flip
- int edge_index = t.EdgeIndex(&p, &op);
-
- t.delaunay_edge[edge_index] = true;
- Legalize(tcx, t);
- t.ClearDelunayEdges();
- return ot;
-}
-
-Point& Sweep::NextFlipPoint(Point& ep, Point& eq, Triangle& ot, Point& op)
-{
- Orientation o2d = Orient2d(eq, op, ep);
- if (o2d == CW) {
- // Right
- return *ot.PointCCW(op);
- } else if (o2d == CCW) {
- // Left
- return *ot.PointCW(op);
- }
- throw std::runtime_error("[Unsupported] Opposing point on constrained edge");
-}
-
-void Sweep::FlipScanEdgeEvent(SweepContext& tcx, Point& ep, Point& eq, Triangle& flip_triangle,
- Triangle& t, Point& p)
-{
- Triangle& ot = t.NeighborAcross(p);
- Point& op = *ot.OppositePoint(t, p);
-
- if (InScanArea(eq, *flip_triangle.PointCCW(eq), *flip_triangle.PointCW(eq), op)) {
- // flip with new edge op->eq
- FlipEdgeEvent(tcx, eq, op, &ot, op);
- // TODO: Actually I just figured out that it should be possible to
- // improve this by getting the next ot and op before the the above
- // flip and continue the flipScanEdgeEvent here
- // set new ot and op here and loop back to inScanArea test
- // also need to set a new flip_triangle first
- // Turns out at first glance that this is somewhat complicated
- // so it will have to wait.
- } else{
- Point& newP = NextFlipPoint(ep, eq, ot, op);
- FlipScanEdgeEvent(tcx, ep, eq, flip_triangle, ot, newP);
- }
-}
-
-Sweep::~Sweep() {
-
- // Clean up memory
- for(size_t i = 0; i < nodes_.size(); i++) {
- delete nodes_[i];
- }
-
-}
-
-#ifdef _MSC_VER
-# pragma warning( pop )
-#endif // _MSC_VER
-
-}
diff --git a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/sweep.h b/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/sweep.h
deleted file mode 100644
index ad429fd..0000000
--- a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/sweep.h
+++ /dev/null
@@ -1,285 +0,0 @@
-/*
- * Poly2Tri Copyright (c) 2009-2010, Poly2Tri Contributors
- * http://code.google.com/p/poly2tri/
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * * Neither the name of Poly2Tri nor the names of its contributors may be
- * used to endorse or promote products derived from this software without specific
- * prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-/**
- * Sweep-line, Constrained Delauney Triangulation (CDT) See: Domiter, V. and
- * Zalik, B.(2008)'Sweep-line algorithm for constrained Delaunay triangulation',
- * International Journal of Geographical Information Science
- *
- * "FlipScan" Constrained Edge Algorithm invented by Thomas ?hl?n, thahlen@gmail.com
- */
-
-#ifndef SWEEP_H
-#define SWEEP_H
-
-#include <vector>
-
-namespace p2t {
-
-class SweepContext;
-struct Node;
-struct Point;
-struct Edge;
-class Triangle;
-
-class Sweep
-{
-public:
-
- /**
- * Triangulate
- *
- * @param tcx
- */
- void Triangulate(SweepContext& tcx);
-
- /**
- * Destructor - clean up memory
- */
- ~Sweep();
-
-private:
-
- /**
- * Start sweeping the Y-sorted point set from bottom to top
- *
- * @param tcx
- */
- void SweepPoints(SweepContext& tcx);
-
- /**
- * Find closes node to the left of the new point and
- * create a new triangle. If needed new holes and basins
- * will be filled to.
- *
- * @param tcx
- * @param point
- * @return
- */
- Node& PointEvent(SweepContext& tcx, Point& point);
-
- /**
- *
- *
- * @param tcx
- * @param edge
- * @param node
- */
- void EdgeEvent(SweepContext& tcx, Edge* edge, Node* node);
-
- void EdgeEvent(SweepContext& tcx, Point& ep, Point& eq, Triangle* triangle, Point& point);
-
- /**
- * Creates a new front triangle and legalize it
- *
- * @param tcx
- * @param point
- * @param node
- * @return
- */
- Node& NewFrontTriangle(SweepContext& tcx, Point& point, Node& node);
-
- /**
- * Adds a triangle to the advancing front to fill a hole.
- * @param tcx
- * @param node - middle node, that is the bottom of the hole
- */
- void Fill(SweepContext& tcx, Node& node);
-
- /**
- * Returns true if triangle was legalized
- */
- bool Legalize(SweepContext& tcx, Triangle& t);
-
- /**
- * <b>Requirement</b>:<br>
- * 1. a,b and c form a triangle.<br>
- * 2. a and d is know to be on opposite side of bc<br>
- * <pre>
- * a
- * +
- * / \
- * / \
- * b/ \c
- * +-------+
- * / d \
- * / \
- * </pre>
- * <b>Fact</b>: d has to be in area B to have a chance to be inside the circle formed by
- * a,b and c<br>
- * d is outside B if orient2d(a,b,d) or orient2d(c,a,d) is CW<br>
- * This preknowledge gives us a way to optimize the incircle test
- * @param a - triangle point, opposite d
- * @param b - triangle point
- * @param c - triangle point
- * @param d - point opposite a
- * @return true if d is inside circle, false if on circle edge
- */
- bool Incircle(const Point& pa, const Point& pb, const Point& pc, const Point& pd) const;
-
- /**
- * Rotates a triangle pair one vertex CW
- *<pre>
- * n2 n2
- * P +-----+ P +-----+
- * | t /| |\ t |
- * | / | | \ |
- * n1| / |n3 n1| \ |n3
- * | / | after CW | \ |
- * |/ oT | | oT \|
- * +-----+ oP +-----+
- * n4 n4
- * </pre>
- */
- void RotateTrianglePair(Triangle& t, Point& p, Triangle& ot, Point& op) const;
-
- /**
- * Fills holes in the Advancing Front
- *
- *
- * @param tcx
- * @param n
- */
- void FillAdvancingFront(SweepContext& tcx, Node& n);
-
- // Decision-making about when to Fill hole.
- // Contributed by ToolmakerSteve2
- bool LargeHole_DontFill(const Node* node) const;
- bool AngleExceeds90Degrees(const Point* origin, const Point* pa, const Point* pb) const;
- bool AngleExceedsPlus90DegreesOrIsNegative(const Point* origin, const Point* pa, const Point* pb) const;
- double Angle(const Point* origin, const Point* pa, const Point* pb) const;
-
- /**
- *
- * @param node - middle node
- * @return the angle between 3 front nodes
- */
- double HoleAngle(const Node& node) const;
-
- /**
- * The basin angle is decided against the horizontal line [1,0]
- */
- double BasinAngle(const Node& node) const;
-
- /**
- * Fills a basin that has formed on the Advancing Front to the right
- * of given node.<br>
- * First we decide a left,bottom and right node that forms the
- * boundaries of the basin. Then we do a reqursive fill.
- *
- * @param tcx
- * @param node - starting node, this or next node will be left node
- */
- void FillBasin(SweepContext& tcx, Node& node);
-
- /**
- * Recursive algorithm to fill a Basin with triangles
- *
- * @param tcx
- * @param node - bottom_node
- * @param cnt - counter used to alternate on even and odd numbers
- */
- void FillBasinReq(SweepContext& tcx, Node* node);
-
- bool IsShallow(SweepContext& tcx, Node& node);
-
- bool IsEdgeSideOfTriangle(Triangle& triangle, Point& ep, Point& eq);
-
- void FillEdgeEvent(SweepContext& tcx, Edge* edge, Node* node);
-
- void FillRightAboveEdgeEvent(SweepContext& tcx, Edge* edge, Node* node);
-
- void FillRightBelowEdgeEvent(SweepContext& tcx, Edge* edge, Node& node);
-
- void FillRightConcaveEdgeEvent(SweepContext& tcx, Edge* edge, Node& node);
-
- void FillRightConvexEdgeEvent(SweepContext& tcx, Edge* edge, Node& node);
-
- void FillLeftAboveEdgeEvent(SweepContext& tcx, Edge* edge, Node* node);
-
- void FillLeftBelowEdgeEvent(SweepContext& tcx, Edge* edge, Node& node);
-
- void FillLeftConcaveEdgeEvent(SweepContext& tcx, Edge* edge, Node& node);
-
- void FillLeftConvexEdgeEvent(SweepContext& tcx, Edge* edge, Node& node);
-
- void FlipEdgeEvent(SweepContext& tcx, Point& ep, Point& eq, Triangle* t, Point& p);
-
- /**
- * After a flip we have two triangles and know that only one will still be
- * intersecting the edge. So decide which to contiune with and legalize the other
- *
- * @param tcx
- * @param o - should be the result of an orient2d( eq, op, ep )
- * @param t - triangle 1
- * @param ot - triangle 2
- * @param p - a point shared by both triangles
- * @param op - another point shared by both triangles
- * @return returns the triangle still intersecting the edge
- */
- Triangle& NextFlipTriangle(SweepContext& tcx, int o, Triangle& t, Triangle& ot, Point& p, Point& op);
-
- /**
- * When we need to traverse from one triangle to the next we need
- * the point in current triangle that is the opposite point to the next
- * triangle.
- *
- * @param ep
- * @param eq
- * @param ot
- * @param op
- * @return
- */
- Point& NextFlipPoint(Point& ep, Point& eq, Triangle& ot, Point& op);
-
- /**
- * Scan part of the FlipScan algorithm<br>
- * When a triangle pair isn't flippable we will scan for the next
- * point that is inside the flip triangle scan area. When found
- * we generate a new flipEdgeEvent
- *
- * @param tcx
- * @param ep - last point on the edge we are traversing
- * @param eq - first point on the edge we are traversing
- * @param flipTriangle - the current triangle sharing the point eq with edge
- * @param t
- * @param p
- */
- void FlipScanEdgeEvent(SweepContext& tcx, Point& ep, Point& eq, Triangle& flip_triangle, Triangle& t, Point& p);
-
- void FinalizationPolygon(SweepContext& tcx);
-
- std::vector<Node*> nodes_;
-
-};
-
-}
-
-#endif
diff --git a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/sweep_context.cc b/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/sweep_context.cc
deleted file mode 100644
index a9f1fdf..0000000
--- a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/sweep_context.cc
+++ /dev/null
@@ -1,211 +0,0 @@
-/*
- * Poly2Tri Copyright (c) 2009-2010, Poly2Tri Contributors
- * http://code.google.com/p/poly2tri/
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * * Neither the name of Poly2Tri nor the names of its contributors may be
- * used to endorse or promote products derived from this software without specific
- * prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-#include "sweep_context.h"
-#include <algorithm>
-#include "advancing_front.h"
-
-namespace p2t {
-
-SweepContext::SweepContext(const std::vector<Point*>& polyline) : points_(polyline),
- front_(0),
- head_(0),
- tail_(0),
- af_head_(0),
- af_middle_(0),
- af_tail_(0)
-{
- InitEdges(points_);
-}
-
-void SweepContext::AddHole(const std::vector<Point*>& polyline)
-{
- InitEdges(polyline);
- for(unsigned int i = 0; i < polyline.size(); i++) {
- points_.push_back(polyline[i]);
- }
-}
-
-void SweepContext::AddPoint(Point* point) {
- points_.push_back(point);
-}
-
-std::vector<Triangle*> &SweepContext::GetTriangles()
-{
- return triangles_;
-}
-
-std::list<Triangle*> &SweepContext::GetMap()
-{
- return map_;
-}
-
-void SweepContext::InitTriangulation()
-{
- double xmax(points_[0]->x), xmin(points_[0]->x);
- double ymax(points_[0]->y), ymin(points_[0]->y);
-
- // Calculate bounds.
- for (unsigned int i = 0; i < points_.size(); i++) {
- Point& p = *points_[i];
- if (p.x > xmax)
- xmax = p.x;
- if (p.x < xmin)
- xmin = p.x;
- if (p.y > ymax)
- ymax = p.y;
- if (p.y < ymin)
- ymin = p.y;
- }
-
- double dx = kAlpha * (xmax - xmin);
- double dy = kAlpha * (ymax - ymin);
- head_ = new Point(xmax + dx, ymin - dy);
- tail_ = new Point(xmin - dx, ymin - dy);
-
- // Sort points along y-axis
- std::sort(points_.begin(), points_.end(), cmp);
-
-}
-
-void SweepContext::InitEdges(const std::vector<Point*>& polyline)
-{
- size_t num_points = polyline.size();
- for (size_t i = 0; i < num_points; i++) {
- size_t j = i < num_points - 1 ? i + 1 : 0;
- edge_list.push_back(new Edge(*polyline[i], *polyline[j]));
- }
-}
-
-Point* SweepContext::GetPoint(size_t index)
-{
- return points_[index];
-}
-
-void SweepContext::AddToMap(Triangle* triangle)
-{
- map_.push_back(triangle);
-}
-
-Node& SweepContext::LocateNode(const Point& point)
-{
- // TODO implement search tree
- return *front_->LocateNode(point.x);
-}
-
-void SweepContext::CreateAdvancingFront(const std::vector<Node*>& nodes)
-{
-
- (void) nodes;
- // Initial triangle
- Triangle* triangle = new Triangle(*points_[0], *tail_, *head_);
-
- map_.push_back(triangle);
-
- af_head_ = new Node(*triangle->GetPoint(1), *triangle);
- af_middle_ = new Node(*triangle->GetPoint(0), *triangle);
- af_tail_ = new Node(*triangle->GetPoint(2));
- front_ = new AdvancingFront(*af_head_, *af_tail_);
-
- // TODO: More intuitive if head is middles next and not previous?
- // so swap head and tail
- af_head_->next = af_middle_;
- af_middle_->next = af_tail_;
- af_middle_->prev = af_head_;
- af_tail_->prev = af_middle_;
-}
-
-void SweepContext::RemoveNode(Node* node)
-{
- delete node;
-}
-
-void SweepContext::MapTriangleToNodes(Triangle& t)
-{
- for (int i = 0; i < 3; i++) {
- if (!t.GetNeighbor(i)) {
- Node* n = front_->LocatePoint(t.PointCW(*t.GetPoint(i)));
- if (n)
- n->triangle = &t;
- }
- }
-}
-
-void SweepContext::RemoveFromMap(Triangle* triangle)
-{
- map_.remove(triangle);
-}
-
-void SweepContext::MeshClean(Triangle& triangle)
-{
- std::vector<Triangle *> triangles;
- triangles.push_back(&triangle);
-
- while(!triangles.empty()){
- Triangle *t = triangles.back();
- triangles.pop_back();
-
- if (t != NULL && !t->IsInterior()) {
- t->IsInterior(true);
- triangles_.push_back(t);
- for (int i = 0; i < 3; i++) {
- if (!t->constrained_edge[i])
- triangles.push_back(t->GetNeighbor(i));
- }
- }
- }
-}
-
-SweepContext::~SweepContext()
-{
-
- // Clean up memory
-
- delete head_;
- delete tail_;
- delete front_;
- delete af_head_;
- delete af_middle_;
- delete af_tail_;
-
- typedef std::list<Triangle*> type_list;
-
- for(type_list::iterator iter = map_.begin(); iter != map_.end(); ++iter) {
- Triangle* ptr = *iter;
- delete ptr;
- }
-
- for(unsigned int i = 0; i < edge_list.size(); i++) {
- delete edge_list[i];
- }
-
-}
-
-}
diff --git a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/sweep_context.h b/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/sweep_context.h
deleted file mode 100644
index ba0d065..0000000
--- a/src/mesh/assimp-master/contrib/poly2tri/poly2tri/sweep/sweep_context.h
+++ /dev/null
@@ -1,186 +0,0 @@
-/*
- * Poly2Tri Copyright (c) 2009-2010, Poly2Tri Contributors
- * http://code.google.com/p/poly2tri/
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * * Neither the name of Poly2Tri nor the names of its contributors may be
- * used to endorse or promote products derived from this software without specific
- * prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef SWEEP_CONTEXT_H
-#define SWEEP_CONTEXT_H
-
-#include <list>
-#include <vector>
-#include <cstddef>
-
-namespace p2t {
-
-// Inital triangle factor, seed triangle will extend 30% of
-// PointSet width to both left and right.
-const double kAlpha = 0.3;
-
-struct Point;
-class Triangle;
-struct Node;
-struct Edge;
-class AdvancingFront;
-
-class SweepContext {
-public:
-
-/// Constructor
-SweepContext(const std::vector<Point*>& polyline);
-/// Destructor
-~SweepContext();
-
-void set_head(Point* p1);
-
-Point* head() const;
-
-void set_tail(Point* p1);
-
-Point* tail() const;
-
-size_t point_count() const;
-
-Node& LocateNode(const Point& point);
-
-void RemoveNode(Node* node);
-
-void CreateAdvancingFront(const std::vector<Node*>& nodes);
-
-/// Try to map a node to all sides of this triangle that don't have a neighbor
-void MapTriangleToNodes(Triangle& t);
-
-void AddToMap(Triangle* triangle);
-
-Point* GetPoint(size_t index);
-
-Point* GetPoints();
-
-void RemoveFromMap(Triangle* triangle);
-
-void AddHole(const std::vector<Point*>& polyline);
-
-void AddPoint(Point* point);
-
-AdvancingFront* front() const;
-
-void MeshClean(Triangle& triangle);
-
-std::vector<Triangle*> &GetTriangles();
-std::list<Triangle*> &GetMap();
-
-std::vector<Edge*> edge_list;
-
-struct Basin {
- Node* left_node;
- Node* bottom_node;
- Node* right_node;
- double width;
- bool left_highest;
-
- Basin() : left_node(NULL), bottom_node(NULL), right_node(NULL), width(0.0), left_highest(false)
- {
- }
-
- void Clear()
- {
- left_node = NULL;
- bottom_node = NULL;
- right_node = NULL;
- width = 0.0;
- left_highest = false;
- }
-};
-
-struct EdgeEvent {
- Edge* constrained_edge;
- bool right;
-
- EdgeEvent() : constrained_edge(NULL), right(false)
- {
- }
-};
-
-Basin basin;
-EdgeEvent edge_event;
-
-private:
-
-friend class Sweep;
-
-std::vector<Triangle*> triangles_;
-std::list<Triangle*> map_;
-std::vector<Point*> points_;
-
-// Advancing front
-AdvancingFront* front_;
-// head point used with advancing front
-Point* head_;
-// tail point used with advancing front
-Point* tail_;
-
-Node *af_head_, *af_middle_, *af_tail_;
-
-void InitTriangulation();
-void InitEdges(const std::vector<Point*>& polyline);
-
-};
-
-inline AdvancingFront* SweepContext::front() const
-{
- return front_;
-}
-
-inline size_t SweepContext::point_count() const
-{
- return points_.size();
-}
-
-inline void SweepContext::set_head(Point* p1)
-{
- head_ = p1;
-}
-
-inline Point* SweepContext::head() const
-{
- return head_;
-}
-
-inline void SweepContext::set_tail(Point* p1)
-{
- tail_ = p1;
-}
-
-inline Point* SweepContext::tail() const
-{
- return tail_;
-}
-
-}
-
-#endif