matrix

package

v0.8.0 Latest Latest Go to latest Published: Apr 24, 2024 License: Apache-2.0 Imports: 3 Imported by: 15

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const (
	DegToRad = math.Pi / 180
	RadToDeg = 180 / math.Pi
)

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var IdentMatrix = Matrix{{1, 0, 0}, {0, 1, 0}, {0, 0, 1}}

This section is empty.

type Matrix [3][3]float64

func CalcRotateAndTranslateTransformMatrix(r, dx, dy float64) Matrix

CalcRotateAndTranslateTransformMatrix returns a transform matrix that rotates and translates.

func CalcRotateTransformMatrix(rot float64, bb *types.Rectangle) Matrix

CalcRotateTransformMatrix returns a transform matrix that rotates only.

func CalcTransformMatrix(sx, sy, sin, cos, dx, dy float64) Matrix

CalcTransformMatrix returns a full transform matrix.

func (m Matrix) Multiply(n Matrix) Matrix

Multiply calculates the product of two matrices.

func (m Matrix) String() string

func (m Matrix) Transform(p types.Point) types.Point

Transform applies m to p.