private void MeshAnalysis1(List <Vector3> triangles)
{
List <Vector3> vertices = new List <Vector3>();
List <int> faces = new List <int>();
GeoUtils.MeshVertexPrimitiveType(triangles, ref vertices, ref faces);
MeshAnalysis2(vertices, faces);
}
/// <summary>
/// 三角面数组 每个子List为一个三角面
/// </summary>
/// <param name="triangleLst"></param>
/// <param name="vert"></param>
/// <returns></returns>
public static List<List<int>> Decompose(List<List<Vector2>> triangleLst, ref List<Vector2> vert)
{
List<Vector2> tries = new List<Vector2>();
GeoUtils.FlatList(triangleLst, ref tries);
List<int> indices = new List<int>();
GeoUtils.MeshVertexPrimitiveType(tries, ref vert, ref indices);
return HMDecompose(vert, indices);
}
public static List<List<int>> Decompose(EarPolygon poly, ref List<Vector2> vert)
{
EarClipping.Clip(poly);
List<Vector2> triangles = new List<Vector2>();
GeoUtils.FlatList(poly.mResults, ref triangles);
List<int> indices = new List<int>();
GeoUtils.MeshVertexPrimitiveType(triangles, ref vert, ref indices);
return HMDecompose(vert, indices);
}
public static void RemoveInvalidPoint(ref List <Vector3> vertices, ref List <int> faces)
{
List <Vector3> allValid = new List <Vector3>();
for (int i = 0; i < faces.Count; ++i)
{
allValid.Add(vertices[faces[i]]);
allValid.Add(vertices[faces[i + 1]]);
allValid.Add(vertices[faces[i + 2]]);
}
vertices.Clear();
faces.Clear();
GeoUtils.MeshVertexPrimitiveType(allValid, ref vertices, ref faces);
}
private void OnGUI()
{
if (GUILayout.Button("MeshCreate"))
{
mTriangleObjects.Clear();
List <Vector3> drawTriangles = new List <Vector3>();
BuildTriangles(ref mTriangleObjects, ref drawTriangles);
List <Vector3> vertices = new List <Vector3>();
List <int> indices = new List <int>();
GeoUtils.MeshVertexPrimitiveType(drawTriangles, ref vertices, ref indices);
Mesh mesh = new Mesh();
mesh.SetVertices(vertices);
mesh.SetIndices(indices.ToArray(), MeshTopology.Triangles, 0);
mMeshFilter.mesh = mesh;
float start = Time.realtimeSinceStartup;
mBVH = new BVH(mTriangleObjects);
float end1 = Time.realtimeSinceStartup;
Debug.Log(string.Format("time initialized: {0}", end1 - start));
}
if (GUILayout.Button("RayTest"))
{
List <BVHRay> rayList = new List <BVHRay>();
BuildRay(ref rayList, ref mTriangleObjects);
float end1 = Time.realtimeSinceStartup;
BVHIntersectionInfo insect = new BVHIntersectionInfo();
int insectC = 0;
int missC = 0;
for (int i = 0; i < 200; ++i)
{
foreach (BVHRay ray in rayList)
{
bool isInsect = mBVH.GetIntersection(ray, ref insect, false);
int test = isInsect ? insectC++ : missC++;
if (isInsect)
{
Debug.DrawLine(ray.mOrigin, insect.mHitPoint, Color.blue, 2000);
}
}
}
float end2 = Time.realtimeSinceStartup;
Debug.Log(string.Format("time slapped: {0}, insect: {1}, miss: {2}", end2 - end1, insectC, missC));
}
}
/// <summary>
/// 简单多边形或者三角面点数组
/// </summary>
/// <param name="tries"></param>
/// <param name="isPolygon">是否为简单多边形</param>
/// <param name="vert"></param>
/// <returns></returns>
public static List<List<int>> Decompose(List<Vector2> tries, bool isPolygon, ref List<Vector2> vert)
{
if (isPolygon)
{
EarPolygon poly = new EarPolygon();
foreach (Vector2 v in tries)
{
poly.AddPoint(v.x, v.y);
}
EarClipping.Clip(poly);
List<Vector2> triangles = new List<Vector2>();
GeoUtils.FlatList(poly.mResults, ref triangles);
List<int> indices = new List<int>();
GeoUtils.MeshVertexPrimitiveType(triangles, ref vert, ref indices);
return HMDecompose(vert, indices);
}
else
{
List<int> indices = new List<int>();
GeoUtils.MeshVertexPrimitiveType(tries, ref vert, ref indices);
return HMDecompose(vert, indices);
}
}
