zeni/go-chart
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This commit is contained in:
Will Charczuk 2016-09-05 13:26:12 -07:00
parent b78f2327aa
commit 8f56e5939b
10 changed files with 105 additions and 44 deletions
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6
box.go
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@ -76,8 +76,8 @@ func (b Box) Height() int {
// Center returns the center of the box
func (b Box) Center() (x, y int) {
w, h := b.Width(), b.Height()
return b.Left + w>>1, b.Top + h>>1
w2, h2 := b.Width()>>1, b.Height()>>1
return b.Left + w2, b.Top + h2
}
// Aspect returns the aspect ratio of the box.
@ -227,8 +227,8 @@ func (b Box) Rotate(radians float64) Box {
ltx, lty := Math.RotateCoordinate(cx, cy, b.Left, b.Top, radians)
rbx, rby := Math.RotateCoordinate(cx, cy, b.Right, b.Bottom, radians)
return Box{
Top: lty,
Left: ltx,
Top: lty,
Right: rbx,
Bottom: rby,
}