47 lines
983 B
Go
47 lines
983 B
Go
package util
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import (
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"image"
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"math"
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)
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func GetRectLeftSideCenter(rect image.Rectangle) image.Point {
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return image.Point{
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X: rect.Min.X,
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Y: rect.Min.Y + rect.Dy()/2,
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}
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}
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func GetRectRightSideCenter(rect image.Rectangle) image.Point {
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return image.Point{
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X: rect.Max.X,
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Y: rect.Min.Y + rect.Dy()/2,
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}
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}
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func GetRectTopSideCenter(rect image.Rectangle) image.Point {
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return image.Point{
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X: rect.Min.X + rect.Dx()/2,
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Y: rect.Min.Y,
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}
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}
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func GetRectBottomSideCenter(rect image.Rectangle) image.Point {
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return image.Point{
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X: rect.Min.X + rect.Dx()/2,
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Y: rect.Max.Y,
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}
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}
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func GetDistance(p1 image.Point, p2 image.Point) float64 {
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x := math.Abs(float64(p1.X - p2.X))
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y := math.Abs(float64(p1.Y - p2.Y))
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return math.Sqrt(x*x + y*y)
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}
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func GetRectCoordinates(area image.Rectangle, width int, height int) (int, int, int, int) {
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x1 := area.Min.X + area.Dx()/2 - width/2
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y1 := area.Min.Y + area.Dy()/2 - height
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return x1, y1, x1 + width, y1 + height + 2
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}
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