public static List MakeCentroidNet(this PlainShape self, Allocator allocator, IntGeom intGeom, float maxEdge, float maxArea = 0, float minArea = 0, bool onlyConvex = false)
{
long iEdge = intGeom.Int(maxEdge);
var delaunay = self.Delaunay(iEdge, Allocator.Temp);
float aMaxArea;
if (maxArea > 0)
{
aMaxArea = maxArea;
}
else
{
aMaxArea = 0.4f * maxEdge * maxEdge;
}
delaunay.Tessellate(intGeom, aMaxArea);
var iMinArea = intGeom.SqrInt(minArea);
var shape = delaunay.MakeCentroidNet(Allocator.Temp, iMinArea, onlyConvex);
delaunay.Dispose();
int n = shape.layouts.Length;
var dynamicList = new DynamicList(8 * n, n, allocator);
for (int i = 0; i < n; ++i)
{
var iPath = shape.Get(i);
var path = intGeom.Float(iPath, Allocator.Temp);
var polygon = new Polygon(path, Allocator.Temp);
dynamicList.Add(polygon);
}
shape.Dispose();
return(dynamicList.Convert());
}
public void Test_00()
{
var data = BreakerTestData.data[0];
var nPoints = new NativeArray <Vector2>(data, allocator);
var iPoints = iGeom.Int(nPoints, allocator);
var pShape = new PlainShape(iPoints, true, allocator);
iPoints.Dispose();
var indices = pShape.DelaunayTriangulate(allocator);
pShape.Dispose();
var triangles = TrianglesBuilder.build(nPoints, indices, allocator);
indices.Dispose();
nPoints.Dispose();
var breaker0 = new BreakSolver(5, 300, BreakSolver.SmallSpawnStrategy.no);
var polygons0 = breaker0.Divide(triangles, allocator);
Assert.AreEqual(polygons0.Count, 3);
Assert.AreEqual(polygons0.Get(0, allocator).Convert().isEqual(new[] {
new Vector2(2.0710678f, 0.0f),
new Vector2(-2.0710678f, 0.0f),
new Vector2(-5.0f, 5.0f),
new Vector2(-2.0710678f, 7.928932f),
new Vector2(2.0710678f, 7.928932f),
new Vector2(5.0f, 5.0f)
}, 0.001f), true);
Assert.AreEqual(polygons0.Get(1, allocator).Convert().isEqual(new[] {
new Vector2(-4.1628227f, 3.570849f),
new Vector2(-3.1991942f, 1.9258323f),
new Vector2(-4.597563f, 0.0f),
new Vector2(-6.504041f, 0.0f),
new Vector2(-7.6229224f, 2.3770776f),
new Vector2(-6.2748384f, 3.7251613f)
}, 0.001f), true);
Assert.AreEqual(polygons0.Get(2, allocator).Convert().isEqual(new[] {
new Vector2(3.199194f, 1.925832f),
new Vector2(4.1628222f, 3.5708487f),
new Vector2(6.2748384f, 3.7251616f),
new Vector2(7.622922f, 2.3770778f),
new Vector2(6.504041f, 0.0f),
new Vector2(4.597563f, 0.0f)
}, 0.001f), true);
polygons0.Dispose();
var breaker1 = new BreakSolver(1.5f, 10, BreakSolver.SmallSpawnStrategy.no);
var polygons1 = breaker1.Divide(triangles, allocator);
Assert.AreEqual(polygons1.Count > 3, true);
triangles.Dispose();
}