Returns the determinant for the matrix.
Set the provided matrix to the identity matrix.
Inverts matrix.
Check if a matrix only does an affine transformation.
Returns TRUE if the matrix only does an affine transformation.
Check if a matrix is the identity matrix.
Returns TRUE if the matrix is the identity matrix.
Check if a matrix only does scaling.
Returns TRUE if the matrix only does scaling.
Check if a matrix only does translation.
Returns TRUE if the matrix only does trasnlation.
Shift the origin of the transformation specified by matrix
to (x, y). In other words, calculate the matrix that:
Translates the input by (-x, -y).
Transforms the result using the original matrix.
Translates the result by (x, y).
x coordinate of new origin
y coordinate of new origin.
Parse a transofmation matrix from a string.
a string describing the matrix (right now a small subset of the transform strings allowed by SVG)
Rounds numerical errors in matrix to the nearest integer.
Serialize a #GeglMatrix3 to a string.
Returns a freshly allocated string representing that #GeglMatrix3, the returned string should be g_free()'d.
transforms the coordinates provided in x and y and changes to the
coordinates gotten when the transformed with the matrix.
pointer to an x coordinate
pointer to an y coordinate
Returns a copy of
src.