GraphicsMatrix

A matrix holds an affine transformations, such as a scale, rotation, shear, or a combination of these, and is used to convert between different coordinante spaces.

Inheritance Diagram

Inheritance diagram for class GraphicsMatrix

Known Superclasses

lib.graphics.GraphicsObject

Methods Summary

__init__
Clone
Concat	Concatenates the matrix passed with the current matrix.
Get	Return the component values of the matrix as a tuple.
GetNativeMatrix
Invert	Inverts the matrix.
IsEqual	Returns True if the elements of the transformation matricies are equal.
IsIdentity	Returns True if this is the identity matrix.
Rotate	Rotates the matrix in radians
Scale	Scale the matrix
Set	Set the componenets of the matrix by value, default values
TransformDistance	Applies this matrix to a distance (ie. performs all transforms
TransformPoint	Applies this matrix to a point and returns the result
Translate	Translate the metrix. This shifts the origin.

Class API

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class GraphicsMatrix(GraphicsObject)

A matrix holds an affine transformations, such as a scale, rotation, shear, or a combination of these, and is used to convert between different coordinante spaces.

Methods

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__init__(self)

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Clone(self)

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Concat(self, matrix)

Concatenates the matrix passed with the current matrix.

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Get(self)

Return the component values of the matrix as a tuple.

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GetNativeMatrix(self)

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Invert(self)

Inverts the matrix.

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IsEqual(self, matrix)

Returns True if the elements of the transformation matricies are equal.

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IsIdentity()

Returns True if this is the identity matrix.

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Rotate(self, angle)

Rotates the matrix in radians

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Scale(self, xScale, yScale)

Scale the matrix

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Set(self, a=1.0, b=0.0, c=0.0, d=1.0, tx=0.0, ty=0.0)

Set the componenets of the matrix by value, default values are the identity matrix.

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TransformDistance(self, dx, dy)

Applies this matrix to a distance (ie. performs all transforms except translations.)

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TransformPoint(self, x, y)

Applies this matrix to a point and returns the result

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Translate(self, dx, dy)

Translate the metrix. This shifts the origin.