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fixed a problem with miter joints if the lines are parallel

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Thomas Friedel 2018-02-22 14:19:47 +01:00
parent 2da1a4363a
commit efafa0f6f7
1 changed files with 11 additions and 2 deletions
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13
paths.go
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@ -289,8 +289,17 @@ func (cv *Canvas) lineJoint(p pathPoint, p0, p1, p2, l0p0, l0p1, l0p2, l0p3 lm.V
l1p2 := p2.Add(v3) l1p2 := p2.Add(v3)
l1p3 := p1.Add(v3) l1p3 := p1.Add(v3)
ip0, _, _ := lineIntersection(l0p0, l0p1, l1p1, l1p0) var ip0, ip1 lm.Vec2
ip1, _, _ := lineIntersection(l0p2, l0p3, l1p3, l1p2) if l0p1.Sub(l1p1).LenSqr() < 0.000000001 {
ip0 = l0p1.Sub(l1p1).MulF(0.5).Add(l1p1)
} else {
ip0, _, _ = lineIntersection(l0p0, l0p1, l1p1, l1p0)
}
if l0p3.Sub(l1p3).LenSqr() < 0.000000001 {
ip1 = l0p3.Sub(l1p3).MulF(0.5).Add(l1p3)
} else {
ip1, _, _ = lineIntersection(l0p2, l0p3, l1p3, l1p2)
}
tris = append(tris, tris = append(tris,
p1[0], p1[1], l0p1[0], l0p1[1], ip0[0], ip0[1], p1[0], p1[1], l0p1[0], l0p1[1], ip0[0], ip0[1],