A* Pathfinding Project  4.1.9
The A* Pathfinding Project for Unity 3D
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GraphTransform Class Reference

Defines a transformation from graph space to world space. More...

Detailed Description

Defines a transformation from graph space to world space.

This is essentially just a simple wrapper around a matrix, but it has several utilities that are useful.

Public Member Functions

 GraphTransform (Matrix4x4 matrix)
 
Vector3 InverseTransform (Vector3 point)
 
Int3 InverseTransform (Int3 point)
 
void InverseTransform (Int3[] arr)
 
Bounds InverseTransform (Bounds bounds)
 
Vector3 Transform (Vector3 point)
 
void Transform (Int3[] arr)
 
void Transform (Vector3[] arr)
 
Bounds Transform (Bounds bounds)
 
Vector3 TransformVector (Vector3 point)
 
Vector3 WorldUpAtGraphPosition (Vector3 point)
 

Static Public Member Functions

static GraphTransform operator* (GraphTransform lhs, Matrix4x4 rhs)
 
static GraphTransform operator* (Matrix4x4 lhs, GraphTransform rhs)
 

Public Attributes

readonly bool identity
 True if this transform is the identity transform (i.e it does not do anything) More...
 
readonly bool onlyTranslational
 True if this transform is a pure translation without any scaling or rotation. More...
 

Static Public Attributes

static readonly GraphTransform identityTransform = new GraphTransform(Matrix4x4.identity)
 

Private Member Functions

Vector2 IMovementPlane. ToPlane (Vector3 point)
 Transforms from world space to the 'ground' plane of the graph. More...
 
Vector2 IMovementPlane. ToPlane (Vector3 point, out float elevation)
 Transforms from world space to the 'ground' plane of the graph. More...
 
Vector3 IMovementPlane. ToWorld (Vector2 point, float elevation)
 Transforms from the 'ground' plane of the graph to world space. More...
 

Static Private Member Functions

static bool MatrixIsTranslational (Matrix4x4 matrix)
 

Private Attributes

readonly Int3 i3translation
 
readonly Matrix4x4 inverseMatrix
 
readonly Quaternion inverseRotation
 
readonly bool isXY
 
readonly bool isXZ
 
readonly Matrix4x4 matrix
 
readonly Quaternion rotation
 
readonly Vector3 translation
 
readonly Vector3 up
 

Constructor & Destructor Documentation

◆ GraphTransform()

GraphTransform ( Matrix4x4  matrix)

Member Function Documentation

◆ InverseTransform() [1/4]

Vector3 InverseTransform ( Vector3  point)

Implements ITransform.

◆ InverseTransform() [2/4]

Int3 InverseTransform ( Int3  point)

◆ InverseTransform() [3/4]

void InverseTransform ( Int3 []  arr)

◆ InverseTransform() [4/4]

Bounds InverseTransform ( Bounds  bounds)

◆ MatrixIsTranslational()

static bool MatrixIsTranslational ( Matrix4x4  matrix)
staticprivate

◆ operator*() [1/2]

static GraphTransform operator* ( GraphTransform  lhs,
Matrix4x4  rhs 
)
static

◆ operator*() [2/2]

static GraphTransform operator* ( Matrix4x4  lhs,
GraphTransform  rhs 
)
static

◆ ToPlane() [1/2]

Vector2 IMovementPlane. ToPlane ( Vector3  point)
private

Transforms from world space to the 'ground' plane of the graph.

The transformation is purely a rotation so no scale or offset is used.

For a graph rotated with the rotation (-90, 0, 0) this will transform a coordinate (x,y,z) to (x,y). For a graph with the rotation (0,0,0) this will tranform a coordinate (x,y,z) to (x,z). More generally for a graph with a quaternion rotation R this will transform a vector V to R * V (i.e rotate the vector V using the rotation R).

Implements IMovementPlane.

◆ ToPlane() [2/2]

Vector2 IMovementPlane. ToPlane ( Vector3  point,
out float  elevation 
)
private

Transforms from world space to the 'ground' plane of the graph.

The transformation is purely a rotation so no scale or offset is used.

Implements IMovementPlane.

◆ ToWorld()

Vector3 IMovementPlane. ToWorld ( Vector2  point,
float  elevation 
)
private

Transforms from the 'ground' plane of the graph to world space.

The transformation is purely a rotation so no scale or offset is used.

Implements IMovementPlane.

◆ Transform() [1/4]

Vector3 Transform ( Vector3  point)

Implements ITransform.

◆ Transform() [2/4]

void Transform ( Int3 []  arr)

◆ Transform() [3/4]

void Transform ( Vector3 []  arr)

◆ Transform() [4/4]

Bounds Transform ( Bounds  bounds)

◆ TransformVector()

Vector3 TransformVector ( Vector3  point)

◆ WorldUpAtGraphPosition()

Vector3 WorldUpAtGraphPosition ( Vector3  point)

Member Data Documentation

◆ i3translation

readonly Int3 i3translation
private

◆ identity

readonly bool identity

True if this transform is the identity transform (i.e it does not do anything)

◆ identityTransform

readonly GraphTransform identityTransform = new GraphTransform(Matrix4x4.identity)
static

◆ inverseMatrix

readonly Matrix4x4 inverseMatrix
private

◆ inverseRotation

readonly Quaternion inverseRotation
private

◆ isXY

readonly bool isXY
private

◆ isXZ

readonly bool isXZ
private

◆ matrix

readonly Matrix4x4 matrix
private

◆ onlyTranslational

readonly bool onlyTranslational

True if this transform is a pure translation without any scaling or rotation.

◆ rotation

readonly Quaternion rotation
private

◆ translation

readonly Vector3 translation
private

◆ up

readonly Vector3 up
private
The documentation for this class was generated from the following file: