From f1fe73d1909a2448a004a88362a1a532d0d4f7c3 Mon Sep 17 00:00:00 2001 From: sanine Date: Sun, 12 Feb 2023 23:53:22 -0600 Subject: switch to tinyobj and nanovg from assimp and cairo --- .../doc/public/html/cairo-cairo-matrix-t.html | 779 --------------------- 1 file changed, 779 deletions(-) delete mode 100644 libs/cairo-1.16.0/doc/public/html/cairo-cairo-matrix-t.html (limited to 'libs/cairo-1.16.0/doc/public/html/cairo-cairo-matrix-t.html') diff --git a/libs/cairo-1.16.0/doc/public/html/cairo-cairo-matrix-t.html b/libs/cairo-1.16.0/doc/public/html/cairo-cairo-matrix-t.html deleted file mode 100644 index 5c2fec5..0000000 --- a/libs/cairo-1.16.0/doc/public/html/cairo-cairo-matrix-t.html +++ /dev/null @@ -1,779 +0,0 @@ - - - - -cairo_matrix_t: Cairo: A Vector Graphics Library - - - - - - - - - - - - - - - - -
-
-
- - -
-

cairo_matrix_t

-

cairo_matrix_t — Generic matrix operations

-
-
-

Functions

-
---- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-void - -cairo_matrix_init () -
-void - -cairo_matrix_init_identity () -
-void - -cairo_matrix_init_translate () -
-void - -cairo_matrix_init_scale () -
-void - -cairo_matrix_init_rotate () -
-void - -cairo_matrix_translate () -
-void - -cairo_matrix_scale () -
-void - -cairo_matrix_rotate () -
-cairo_status_t - -cairo_matrix_invert () -
-void - -cairo_matrix_multiply () -
-void - -cairo_matrix_transform_distance () -
-void - -cairo_matrix_transform_point () -
-
-
-

Types and Values

-
---- - - - - -
 cairo_matrix_t
-
-
-

Description

-

cairo_matrix_t is used throughout cairo to convert between different -coordinate spaces. A cairo_matrix_t holds an affine transformation, -such as a scale, rotation, shear, or a combination of these. -The transformation of a point (x,y) -is given by:

-
-x_new = xx * x + xy * y + x0;
-y_new = yx * x + yy * y + y0;
-
-

The current transformation matrix of a cairo_t, represented as a -cairo_matrix_t, defines the transformation from user-space -coordinates to device-space coordinates. See cairo_get_matrix() and -cairo_set_matrix().

-
-
-

Functions

-
-

cairo_matrix_init ()

-
void
-cairo_matrix_init (cairo_matrix_t *matrix,
-                   double xx,
-                   double yx,
-                   double xy,
-                   double yy,
-                   double x0,
-                   double y0);
-

Sets matrix - to be the affine transformation given by -xx -, yx -, xy -, yy -, x0 -, y0 -. The transformation is given -by:

-
- x_new = xx * x + xy * y + x0;
- y_new = yx * x + yy * y + y0;
-
-
-

Parameters

-
----- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

matrix

a cairo_matrix_t

 

xx

xx component of the affine transformation

 

yx

yx component of the affine transformation

 

xy

xy component of the affine transformation

 

yy

yy component of the affine transformation

 

x0

X translation component of the affine transformation

 

y0

Y translation component of the affine transformation

 
-
-

Since: 1.0

-
-
-
-

cairo_matrix_init_identity ()

-
void
-cairo_matrix_init_identity (cairo_matrix_t *matrix);
-

Modifies matrix - to be an identity transformation.

-
-

Parameters

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----- - - - - - -

matrix

a cairo_matrix_t

 
-
-

Since: 1.0

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-
-
-

cairo_matrix_init_translate ()

-
void
-cairo_matrix_init_translate (cairo_matrix_t *matrix,
-                             double tx,
-                             double ty);
-

Initializes matrix - to a transformation that translates by tx - and -ty - in the X and Y dimensions, respectively.

-
-

Parameters

-
----- - - - - - - - - - - - - - - - - - -

matrix

a cairo_matrix_t

 

tx

amount to translate in the X direction

 

ty

amount to translate in the Y direction

 
-
-

Since: 1.0

-
-
-
-

cairo_matrix_init_scale ()

-
void
-cairo_matrix_init_scale (cairo_matrix_t *matrix,
-                         double sx,
-                         double sy);
-

Initializes matrix - to a transformation that scales by sx - and sy - -in the X and Y dimensions, respectively.

-
-

Parameters

-
----- - - - - - - - - - - - - - - - - - -

matrix

a cairo_matrix_t

 

sx

scale factor in the X direction

 

sy

scale factor in the Y direction

 
-
-

Since: 1.0

-
-
-
-

cairo_matrix_init_rotate ()

-
void
-cairo_matrix_init_rotate (cairo_matrix_t *matrix,
-                          double radians);
-

Initialized matrix - to a transformation that rotates by radians -.

-
-

Parameters

-
----- - - - - - - - - - - - - -

matrix

a cairo_matrix_t

 

radians

angle of rotation, in radians. The direction of rotation -is defined such that positive angles rotate in the direction from -the positive X axis toward the positive Y axis. With the default -axis orientation of cairo, positive angles rotate in a clockwise -direction.

 
-
-

Since: 1.0

-
-
-
-

cairo_matrix_translate ()

-
void
-cairo_matrix_translate (cairo_matrix_t *matrix,
-                        double tx,
-                        double ty);
-

Applies a translation by tx -, ty - to the transformation in -matrix -. The effect of the new transformation is to first translate -the coordinates by tx - and ty -, then apply the original transformation -to the coordinates.

-
-

Parameters

-
----- - - - - - - - - - - - - - - - - - -

matrix

a cairo_matrix_t

 

tx

amount to translate in the X direction

 

ty

amount to translate in the Y direction

 
-
-

Since: 1.0

-
-
-
-

cairo_matrix_scale ()

-
void
-cairo_matrix_scale (cairo_matrix_t *matrix,
-                    double sx,
-                    double sy);
-

Applies scaling by sx -, sy - to the transformation in matrix -. The -effect of the new transformation is to first scale the coordinates -by sx - and sy -, then apply the original transformation to the coordinates.

-
-

Parameters

-
----- - - - - - - - - - - - - - - - - - -

matrix

a cairo_matrix_t

 

sx

scale factor in the X direction

 

sy

scale factor in the Y direction

 
-
-

Since: 1.0

-
-
-
-

cairo_matrix_rotate ()

-
void
-cairo_matrix_rotate (cairo_matrix_t *matrix,
-                     double radians);
-

Applies rotation by radians - to the transformation in -matrix -. The effect of the new transformation is to first rotate the -coordinates by radians -, then apply the original transformation -to the coordinates.

-
-

Parameters

-
----- - - - - - - - - - - - - -

matrix

a cairo_matrix_t

 

radians

angle of rotation, in radians. The direction of rotation -is defined such that positive angles rotate in the direction from -the positive X axis toward the positive Y axis. With the default -axis orientation of cairo, positive angles rotate in a clockwise -direction.

 
-
-

Since: 1.0

-
-
-
-

cairo_matrix_invert ()

-
cairo_status_t
-cairo_matrix_invert (cairo_matrix_t *matrix);
-

Changes matrix - to be the inverse of its original value. Not -all transformation matrices have inverses; if the matrix -collapses points together (it is degenerate), -then it has no inverse and this function will fail.

-
-

Parameters

-
----- - - - - - -

matrix

a cairo_matrix_t

 
-
-
-

Returns

-

If matrix -has an inverse, modifies matrix -to -be the inverse matrix and returns CAIRO_STATUS_SUCCESS. Otherwise, -returns CAIRO_STATUS_INVALID_MATRIX.

-
-

Since: 1.0

-
-
-
-

cairo_matrix_multiply ()

-
void
-cairo_matrix_multiply (cairo_matrix_t *result,
-                       const cairo_matrix_t *a,
-                       const cairo_matrix_t *b);
-

Multiplies the affine transformations in a - and b - together -and stores the result in result -. The effect of the resulting -transformation is to first apply the transformation in a - to the -coordinates and then apply the transformation in b - to the -coordinates.

-

It is allowable for result - to be identical to either a - or b -.

-
-

Parameters

-
----- - - - - - - - - - - - - - - - - - -

result

a cairo_matrix_t in which to store the result

 

a

a cairo_matrix_t

 

b

a cairo_matrix_t

 
-
-

Since: 1.0

-
-
-
-

cairo_matrix_transform_distance ()

-
void
-cairo_matrix_transform_distance (const cairo_matrix_t *matrix,
-                                 double *dx,
-                                 double *dy);
-

Transforms the distance vector (dx -,dy -) by matrix -. This is -similar to cairo_matrix_transform_point() except that the translation -components of the transformation are ignored. The calculation of -the returned vector is as follows:

-
-dx2 = dx1 * a + dy1 * c;
-dy2 = dx1 * b + dy1 * d;
-
-

Affine transformations are position invariant, so the same vector -always transforms to the same vector. If (x1 -,y1 -) transforms -to (x2 -,y2 -) then (x1 -+dx1 -,y1 -+dy1 -) will transform to -(x1 -+dx2 -,y1 -+dy2 -) for all values of x1 - and x2 -.

-
-

Parameters

-
----- - - - - - - - - - - - - - - - - - -

matrix

a cairo_matrix_t

 

dx

X component of a distance vector. An in/out parameter

 

dy

Y component of a distance vector. An in/out parameter

 
-
-

Since: 1.0

-
-
-
-

cairo_matrix_transform_point ()

-
void
-cairo_matrix_transform_point (const cairo_matrix_t *matrix,
-                              double *x,
-                              double *y);
-

Transforms the point (x -, y -) by matrix -.

-
-

Parameters

-
----- - - - - - - - - - - - - - - - - - -

matrix

a cairo_matrix_t

 

x

X position. An in/out parameter

 

y

Y position. An in/out parameter

 
-
-

Since: 1.0

-
-
-
-

Types and Values

-
-

cairo_matrix_t

-
typedef struct {
-    double xx; double yx;
-    double xy; double yy;
-    double x0; double y0;
-} cairo_matrix_t;
-
-

A cairo_matrix_t holds an affine transformation, such as a scale, -rotation, shear, or a combination of those. The transformation of -a point (x, y) is given by:

-
-    x_new = xx * x + xy * y + x0;
-    y_new = yx * x + yy * y + y0;
-
-
-

Members

-
----- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

double xx;

xx component of the affine transformation

 

double yx;

yx component of the affine transformation

 

double xy;

xy component of the affine transformation

 

double yy;

yy component of the affine transformation

 

double x0;

X translation component of the affine transformation

 

double y0;

Y translation component of the affine transformation

 
-
-

Since: 1.0

-
-
-
-

See Also

-

cairo_t

-
-
-
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