public void IntersectingShouldBeMatched(Matrix4x4 transform, Triangle triangle)
{
var plane = new PointDirection3(Vector3.Zero, Vector3.UnitX);
var ttriangle = triangle.ApplyTransform(transform);
var pplane = plane.ApplyTransform(transform);
var intersectionO = ttriangle.IntersectPlane(pplane);
intersectionO.IsSome.Should().Be(true);
}
public static Vector3 TriNorm(Triangle tri)
{
var v0 = tri.A - tri.B;
var v1 = tri.A - tri.C;
return Vector3.Cross(v0,v1);
}
public static Range3Single FromTriangle(Triangle triangle)
{
var xmin = double.MaxValue;
var ymin = double.MaxValue;
var zmin = double.MaxValue;
var xmax = double.MinValue;
var ymax = double.MinValue;
var zmax = double.MinValue;
Adjust(triangle.A, ref xmin, ref xmax, ref ymin, ref ymax, ref zmin, ref zmax);
Adjust(triangle.B, ref xmin, ref xmax, ref ymin, ref ymax, ref zmin, ref zmax);
Adjust(triangle.C, ref xmin, ref xmax, ref ymin, ref ymax, ref zmin, ref zmax);
return new Range3Single(new Vector3(xmin,ymin,zmin), new Vector3(xmax, ymax, zmax));
}