public static List<Triangle> ToTriangleList2D(double[] data, int count)
{
List<Triangle> res = new List<Triangle>();
for (int i=0;i<count ;i+=6){
Triangle t = new Triangle(
new Vector3D(data[i+0],0,data[i+1]),
new Vector3D(data[i+2],0,data[i+3]),
new Vector3D(data[i+4],0,data[i+5])
);
res.Add(t);
}
return res;
}