/// <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);
}
/// <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);
}
}