diff options
Diffstat (limited to 'src/mesh/assimp-master/code/Common/SGSpatialSort.cpp')
| -rw-r--r-- | src/mesh/assimp-master/code/Common/SGSpatialSort.cpp | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/src/mesh/assimp-master/code/Common/SGSpatialSort.cpp b/src/mesh/assimp-master/code/Common/SGSpatialSort.cpp deleted file mode 100644 index 0d16d6f..0000000 --- a/src/mesh/assimp-master/code/Common/SGSpatialSort.cpp +++ /dev/null @@ -1,168 +0,0 @@ -/* ---------------------------------------------------------------------------- -Open Asset Import Library (assimp) ---------------------------------------------------------------------------- - -Copyright (c) 2006-2022, assimp team - - - -All rights reserved. - -Redistribution and use of this software 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 the assimp team, nor the names of its -contributors may be used to endorse or promote products -derived from this software without specific prior -written permission of the assimp team. - -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. ---------------------------------------------------------------------------- -*/ - -/** @file Implementation of the helper class to quickly find -vertices close to a given position. Special implementation for -the 3ds loader handling smooth groups correctly */ - -#include <assimp/SGSpatialSort.h> - -using namespace Assimp; - -// ------------------------------------------------------------------------------------------------ -SGSpatialSort::SGSpatialSort() -{ - // define the reference plane. We choose some arbitrary vector away from all basic axes - // in the hope that no model spreads all its vertices along this plane. - mPlaneNormal.Set( 0.8523f, 0.34321f, 0.5736f); - mPlaneNormal.Normalize(); -} -// ------------------------------------------------------------------------------------------------ -// Destructor -SGSpatialSort::~SGSpatialSort() -{ - // nothing to do here, everything destructs automatically -} -// ------------------------------------------------------------------------------------------------ -void SGSpatialSort::Add(const aiVector3D& vPosition, unsigned int index, - unsigned int smoothingGroup) -{ - // store position by index and distance - float distance = vPosition * mPlaneNormal; - mPositions.push_back( Entry( index, vPosition, - distance, smoothingGroup)); -} -// ------------------------------------------------------------------------------------------------ -void SGSpatialSort::Prepare() -{ - // now sort the array ascending by distance. - std::sort( this->mPositions.begin(), this->mPositions.end()); -} -// ------------------------------------------------------------------------------------------------ -// Returns an iterator for all positions close to the given position. -void SGSpatialSort::FindPositions( const aiVector3D& pPosition, - uint32_t pSG, - float pRadius, - std::vector<unsigned int>& poResults, - bool exactMatch /*= false*/) const -{ - float dist = pPosition * mPlaneNormal; - float minDist = dist - pRadius, maxDist = dist + pRadius; - - // clear the array - poResults.clear(); - - // quick check for positions outside the range - if( mPositions.empty() ) - return; - if( maxDist < mPositions.front().mDistance) - return; - if( minDist > mPositions.back().mDistance) - return; - - // do a binary search for the minimal distance to start the iteration there - unsigned int index = (unsigned int)mPositions.size() / 2; - unsigned int binaryStepSize = (unsigned int)mPositions.size() / 4; - while( binaryStepSize > 1) - { - if( mPositions[index].mDistance < minDist) - index += binaryStepSize; - else - index -= binaryStepSize; - - binaryStepSize /= 2; - } - - // depending on the direction of the last step we need to single step a bit back or forth - // to find the actual beginning element of the range - while( index > 0 && mPositions[index].mDistance > minDist) - index--; - while( index < (mPositions.size() - 1) && mPositions[index].mDistance < minDist) - index++; - - // Mow start iterating from there until the first position lays outside of the distance range. - // Add all positions inside the distance range within the given radius to the result array - - float squareEpsilon = pRadius * pRadius; - std::vector<Entry>::const_iterator it = mPositions.begin() + index; - std::vector<Entry>::const_iterator end = mPositions.end(); - - if (exactMatch) - { - while( it->mDistance < maxDist) - { - if((it->mPosition - pPosition).SquareLength() < squareEpsilon && it->mSmoothGroups == pSG) - { - poResults.push_back( it->mIndex); - } - ++it; - if( end == it )break; - } - } - else - { - // if the given smoothing group is 0, we'll return all surrounding vertices - if (!pSG) - { - while( it->mDistance < maxDist) - { - if((it->mPosition - pPosition).SquareLength() < squareEpsilon) - poResults.push_back( it->mIndex); - ++it; - if( end == it)break; - } - } - else while( it->mDistance < maxDist) - { - if((it->mPosition - pPosition).SquareLength() < squareEpsilon && - (it->mSmoothGroups & pSG || !it->mSmoothGroups)) - { - poResults.push_back( it->mIndex); - } - ++it; - if( end == it)break; - } - } -} - - |