26 lines
648 B
Go
26 lines
648 B
Go
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package geom
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import "image"
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// ---------- Some helpers for image.Point ----------
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// CMul performs componentwise multiplication of two image.Points.
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func CMul(p, q image.Point) image.Point {
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return image.Point{p.X * q.X, p.Y * q.Y}
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}
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// CDiv performs componentwise division of two image.Points.
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func CDiv(p, q image.Point) image.Point {
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return image.Point{p.X / q.X, p.Y / q.Y}
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}
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// CFloat returns the components of an image.Point as two floats.
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func CFloat(p image.Point) (x, y float64) {
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return float64(p.X), float64(p.Y)
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}
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// Dot returns the Dot product of two image.Points.
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func Dot(p, q image.Point) int {
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return p.X*q.X + p.Y*q.Y
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}
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