private CommonGeometry[] GetShapeGeometry(IConvexHullEngine convexHullEngine)
{
AABB region = AABB.GetGeometryAABB(Geometry.VerticesPosition, this);
Vertex3Index[] verticesIndex = new Vertex3Index[Geometry.VerticesPosition.Length];
for (int i = 0; i < Geometry.VerticesPosition.Length; i++)
{
verticesIndex[i] = new Vertex3Index(Geometry.VerticesPosition[i], Geometry.VerticesIdx[i].GetGlobalAdjacencyList(), i);
}
ConvexDecompositionEngine convexDecomposition = new ConvexDecompositionEngine(region, verticesIndex, 0.2);
var convexShapes = convexDecomposition.Execute().GetConvexShapeList(true);
var ConvexShapesGeometry = new CommonGeometry[convexShapes.Count];
for (int i = 0; i < convexShapes.Count; i++)
{
ConvexHullData convexHullData = convexHullEngine.GetConvexHull(convexShapes[i].Vertex3Idx.ToArray());
var verticesIdx = Array.ConvertAll(convexHullData.Vertices, x => x.ID);
ConvexShapesGeometry[i] = new CommonGeometry(null, convexHullData.TriangleMeshes, verticesIdx);
}
return(ConvexShapesGeometry);
}
void Update()
{
// Step 0: Contrive some points
if (points == null)
{
points = new List <Vector3>();
for (int i = 0; i < 300; i++)
{
points.Add(UnityEngine.Random.insideUnitSphere);
}
}
// Construct the convex hull
if (convexHull.isCreated)
{
convexHull.Dispose();
}
convexHull = new ConvexHullData(points);
if (interactivePoint != null)
{
convexHull.GrowHull(interactivePoint.position);
}
// Copy the data into the Unity Mesh Representation
convexHull.CopyToUnityMesh(ref hullMesh);
if (filter == null || filter.sharedMesh == null)
{
filter = GetComponent <MeshFilter>(); filter.mesh = hullMesh;
}
}
public ShapeGeometry(Vector3d[] inputVertexPosition)
{
IConvexHullEngine convexHullEngine = new ConvexHullEngine();
ConvexHullData convexHullData = convexHullEngine.GetConvexHull(inputVertexPosition);
TriangleMesh[] triangleMeshes = convexHullData.TriangleMeshes;
Geometry = new CommonGeometry(
Array.ConvertAll(convexHullData.Vertices, x => x.Vector3),
triangleMeshes);
}
public static ConvexHull ExtractConvexHull(double[][] vertex)
{
IConvexHullEngine convexHullEngine = new ConvexHullEngine();
var inputVertex = GeometryUtils.GetVector3ArrayFromMatrix(vertex);
ConvexHullData convexHullData = convexHullEngine.GetConvexHull(inputVertex);
var result = new ConvexHull()
{
Triangles = convexHullData.TriangleMeshes.Select(x => x.GetArray())?.ToArray(),
Vertices = MathUtils.GetArrayFromVector3(Array.ConvertAll(convexHullData.Vertices, x => x.Vector3))
};
return(result);
}
