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add IM.FillCircle and IM.FillEllipse

This commit is contained in:
faiface 2017-03-10 14:54:20 +01:00
parent f93f599d7f
commit 63128da6ce
1 changed files with 12 additions and 6 deletions
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18
graphics.go
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@ -188,8 +188,6 @@ func (im *IM) SetColorMask(color color.Color) {
// FillConvexPolygon takes all points Pushed into the IM's queue and fills the convex polygon formed
// by them.
//
// It empties the queue after.
func (im *IM) FillConvexPolygon() {
points := im.points
im.points = nil
@ -223,10 +221,18 @@ func (im *IM) FillConvexPolygon() {
im.d.Dirty()
}
// FillEllipseArc draws an ellipse arc around each point in the IM's queue. Low and high angles are
// in radians.
//
// It empties the queue after.
// FillCircle draws a filled circle around each point in the IM's queue.
func (im *IM) FillCircle(radius float64) {
im.FillEllipse(V(radius, radius))
}
// FillEllipse draws a filled ellipse around each point in the IM's queue.
func (im *IM) FillEllipse(radius Vec) {
im.FillEllipseArc(radius, 0, 2*math.Pi)
}
// FillEllipseArc draws a filled ellipse arc around each point in the IM's queue. Low and high
// angles are in radians.
func (im *IM) FillEllipseArc(radius Vec, low, high float64) {
points := im.points
im.points = nil