mstar/canvas
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

added safer lower limit for circle steps

Browse source
This commit is contained in:
Thomas Friedel 2018-02-06 17:06:59 +01:00
parent 5e6a33f77e
commit 9c1845211a
1 changed files with 5 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
paths.go
View file

@ -94,6 +94,8 @@ func (cv *Canvas) Arc(x, y, radius, startAngle, endAngle float32, anticlockwise
step := 6 / fmath.Max(tr[0], tr[1])
if step > 0.8 {
step = 0.8
} else if step < 0.01 {
step = 0.01
}
if anticlockwise {
for a := startAngle; a > endAngle; a -= step {
@ -307,8 +309,10 @@ func (cv *Canvas) addCircleTris(p lm.Vec2, radius float32, tris []float32) []flo
cxf, cyf := cv.vecToGL(p)
p0x, p0y := cv.vecToGL(lm.Vec2{p[0], p[1] + radius})
step := 6 / radius
if step > 0. {
if step > 0.8 {
step = 0.8
} else if step < 0.01 {
step = 0.01
}
for angle := step; angle <= math.Pi*2+step; angle += step {
s, c := fmath.Sincos(angle)