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lixingliang 2019-06-12 11:43:36 +08:00
parent 72436a171b
commit 6897f9a1a0
1 changed files with 2 additions and 2 deletions
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4
context.go
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@ -849,13 +849,13 @@ func (dc *Context) ScaleAbout(sx, sy, x, y float64) {
dc.Translate(-x, -y)
}
// Rotate updates the current matrix with a clockwise rotation.
// Rotate updates the current matrix with a anticlockwise rotation.
// Rotation occurs about the origin. Angle is specified in radians.
func (dc *Context) Rotate(angle float64) {
dc.matrix = dc.matrix.Rotate(angle)
}
// RotateAbout updates the current matrix with a clockwise rotation.
// RotateAbout updates the current matrix with a anticlockwise rotation.
// Rotation occurs about the specified point. Angle is specified in radians.
func (dc *Context) RotateAbout(angle, x, y float64) {
dc.Translate(x, y)