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Plane
Chuck Walbourn edited this page Apr 26, 2022
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6 revisions
DirectXTK | SimpleMath |
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An infinite 2D plane represented as a four component vector modeled after the XNA Game Studio 4 (Microsoft.Xna.Framework.Plane
) math library.
#include <SimpleMath.h>
using namespace DirectX::SimpleMath;
Plane p; // Creates a plane in XZ at the origin
Plane p(0, 1, 0, 0); // Creates a plane in XZ at the origin
Plane p( Vector3(0,1,0), 0 ); // Creates a plane in XZ at the origin
Plane p( Vector3(1,1,1),
Vector3(2,2,2),
Vector3(3,3,3)); // Creates a plane containing the three points
Plane p( Vector3(1,2,3),
Vector3(0,0,1) ); // Creates a plane at [1,2,3] with the normal [0,0,1]
float arr[4] = { 0, 1, 0, 0 };
Plane p(arr); // Creates a plane in XZ at the origin
- x component of the plane normal (A)
- y component of the plane normal (B)
- z component of the plane normal (D)
- w scalar distance to the plane from the origin (D)
This is the Cartesian form of the equation of a plane: Ax + By + C*z + D
- Normal: Returns the normal vector for the plane
- D: Returns the distance to the plane
- Comparison operators:
==
and!=
- Assignment operators:
=
- Normalize
- Dot: Performs a 4D dot product between a 4 vector and the plane
- DotCoordinate: Performs a point test against the plane, which returns the distance between the point and the plane.
- DotNormal: Performs a dot product against just the normal of the plane.
- Transform
Planes should be transformed by the inverse transpose of the matrix, which for pure rotations results in the same matrix as the original.
Plane can freely convert to and from a XMFLOAT4
and XMVECTOR
All content and source code for this package are subject to the terms of the MIT License.
This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact [email protected] with any additional questions or comments.
- Universal Windows Platform apps
- Windows desktop apps
- Windows 11
- Windows 10
- Windows 8.1
- Windows 7 Service Pack 1
- Xbox One
- x86
- x64
- ARM64
- Visual Studio 2022
- Visual Studio 2019 (16.11)
- clang/LLVM v12 - v18
- MinGW 12.2, 13.2
- CMake 3.20