Function directx_math::XMPlaneFromPoints [−][src]
pub fn XMPlaneFromPoints(
Point1: FXMVECTOR,
Point2: FXMVECTOR,
Point3: FXMVECTOR
) -> XMVECTOR
Computes the equation of a plane constructed from three points in the plane.
Parameters
Point1
3D vector describing a point in the plane.
Point2
3D vector describing a point in the plane.
Point3
3D vector describing a point in the plane.
Return value
Returns a vector whose components are the coefficients of the plane (A
, B
, C
, D
) for the plane equation
Ax+By+Cz+D=0
.
Remarks
The following pseudocode demonstrates the operation of the function:
XMVECTOR Result;
XMVECTOR N;
XMVECTOR D;
XMVECTOR V21 = XMVectorSubtract(Point1, Point2);
XMVECTOR V31 = XMVectorSubtract(Point1, Point3);
N = XMVector3Cross(V21, V31);
N = XMVector3Normalize(N);
D = XMPlaneDotNormal(N, Point1);
Result.x = N.x;
Result.y = N.y;
Result.z = N.z;
Result.w = -D.w;
return Result;
Reference
https://docs.microsoft.com/en-us/windows/win32/api/directxmath/nf-directxmath-XMPlaneFromPoints