32 lines
1.0 KiB
Go
32 lines
1.0 KiB
Go
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package geom
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import (
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"math"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestPointFAngleTo(t *testing.T) {
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for a := .0; a <= 2*math.Pi; a += math.Pi * 0.25 {
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assert.InDelta(t, a, PtF(0, 0).AngleTo(PtF(100*math.Cos(a), 100*math.Sin(a))), 0.000001)
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}
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}
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func TestPointInPolygon(t *testing.T) {
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pol := PolygonF{[]PointF{PtF(0, 0), PtF(0, 3), PtF(1, 3), PtF(2, 1), PtF(3, 3), PtF(5, 3), PtF(5, 2), PtF(3, 1), PtF(5, 0)}}
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assert.True(t, PtF(1, 2).InPolygon(pol))
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assert.True(t, PtF(3, 2).InPolygon(pol))
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assert.True(t, PtF(4, 2).InPolygon(pol))
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// assert.True(t, PtF(0, 0).InPolygon(pol)) // Corner = out
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// assert.True(t, PtF(0, 3).InPolygon(pol)) // Corner = out
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// assert.True(t, PtF(5, 3).InPolygon(pol)) // Corner = in
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// assert.True(t, PtF(5, 0).InPolygon(pol)) // Corner = out
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assert.False(t, PtF(0, -1).InPolygon(pol))
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assert.False(t, PtF(-1, 0).InPolygon(pol))
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assert.False(t, PtF(2, 2).InPolygon(pol))
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assert.False(t, PtF(2, 3).InPolygon(pol))
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assert.False(t, PtF(4, 1).InPolygon(pol))
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assert.False(t, PtF(5, 1).InPolygon(pol))
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}
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