AffineTransform Structure

Inheritance Hierarchy

SystemObject
SystemValueType
PdfTools.Toolbox.Geometry.RealAffineTransform

Namespace: PdfTools.Toolbox.Geometry.Real
Assembly: PdfTools.Toolbox (in PdfTools.Toolbox.dll) Version: 1.4.0+02318d3e3f9645a1305b87026fb971a660079e54

Syntax

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public struct AffineTransform

The AffineTransform type exposes the following members.

Properties

	Name	Description
	A	The 'a' matrix element. This is the 'a' element in the affine transformation matrix [a b 0; c d 0; e f 1]
	B	The 'b' matrix element. This is the 'b' element in the affine transformation matrix [a b 0; c d 0; e f 1]
	C	The 'c' matrix element. This is the 'c' element in the affine transformation matrix [a b 0; c d 0; e f 1]
	D	The 'd' matrix element. This is the 'd' element in the affine transformation matrix [a b 0; c d 0; e f 1]
	E	The 'e' matrix element. This is the 'e' element in the affine transformation matrix [a b 0; c d 0; e f 1]
	F	The 'f' matrix element. This is the 'f' element in the affine transformation matrix [a b 0; c d 0; e f 1]
	Identity	The identity transform

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Methods

	Name	Description
	Concatenate	Concatenate transform with other transform. Concatenating a transform with an other transform is equivalent to left-multiplying the transform's matrix with with the other transform's matrix.
	Invert	Invert the transform A transform usually maps from the transformed coordinate system to the untransformed coordinate system. Use this method to create the reverse transform.
	Rotate	Rotate. Rotations are produced by [cos(a) sin(a) -sin(a) cos(a) 0 0], which has the effect of rotating the coordinate system axes by an angle "a" in counterclockwise direction around the origin. If the given center is not , then the rotation is performed around the given center point, which is equivalent to the following sequence: Translate(Double, Double) to center. Rotate(Double, NullablePoint) by angle around the origin. Translate(Double, Double) "back" to the original origin.
	Scale	Scale. Scaling is obtained by [sx 0 0 sy 0 0]. This scales the coordinates so that 1 unit in the horizontal and vertical dimensions of the new coordinate system is the same size as sx and sy units, respectively, in the previous coordinate system.
	Skew	Skew. Skew is specified by [1 tan a tan b 1 0 0], which skews the x axis by an angle a and the y axis by an angle b.
	TransformPoint	Transforms the given point.
	TransformQuadrilateral	Transform a given quadrilateral If the input quadrilateral is a parallelogram, then the output is also a parallelogram.
	TransformRectangle	Transform the given rectangle For a general affine transformation, the returned Quadrilateral is a parallelogram.
	Translate	Translate. Translations are specified as [1 0 0 1 tx ty], where tx and ty are the distances to translate the origin of the coordinate system in the horizontal and vertical dimensions, respectively.

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Reference

PdfTools.Toolbox.Geometry.Real Namespace