Parses the input string for a transformation matrix. The value of the ‘transform’ attribute is a transform-list , which is defined as a list of transform definitions, which are applied in the order provided. The individual transform definitions are separated by whitespace and/or a comma.
Namespace: RSSVGUtils
Delphi |
function ParseTransformation( S: String ): TRSMatrix; |
Parameters
S
Type: String
Return Value
Type: TRSMatrix
The available types of transform definitions include: matrix(<a> <b> <c> <d> <e> <f>), which specifies a transformation in the form of a transformation matrix of six values. matrix(a,b,c,d,e,f) is equivalent to applying the transformation matrix [a b c d e f]. translate(<tx> [<ty>]), which specifies a translation by tx and ty. If <ty> is not provided, it is assumed to be zero. scale(<sx> [<sy>]), which specifies a scale operation by sx and sy. If <sy> is not provided, it is assumed to be equal to <sx>. rotate(<rotate-angle> [<cx> <cy>]), which specifies a rotation by <rotate-angle> degrees about a given point. If optional parameters <cx> and <cy> are not supplied, the rotate is about the origin of the current user coordinate system. The operation corresponds to the matrix [cos(a) sin(a) -sin(a) cos(a) 0 0]. If optional parameters <cx> and <cy> are supplied, the rotate is about the point (cx, cy). The operation represents the equivalent of the following specification: translate(<cx>, <cy>) rotate(<rotate-angle>) translate(-<cx>, -<cy>). skewX(<skew-angle>), which specifies a skew transformation along the x-axis. skewY(<skew-angle>), which specifies a skew transformation along the y-axis. |
