API Reference > core-geometry > Numerics > Map4d

Map4d Class

Map4 carries two Matrix4d which are inverses of each other.

Implements

Methods

Name Description
clone(): Map4d Return a clone of this Map4d  
isAlmostEqual(other: Map4d): boolean Test if both matrices are almost equal to those  
multiplyMapMap(other: Map4d): Map4d multiply this*other.  
reverseInPlace(): void Exchange the two matrices of the map.  
sandwich0This1(other: Map4d): Map4d return a Map4d whose transform0 is  
sandwich1This0(other: Map4d): Map4d return a Map4d whose transform0 is  
setFrom(other: Map4d): void Copy contents from another Map4d  
setFromJSON(json: any): void Set this map4d from a json object that the two Matrix4d values as properties named matrix0 and matrix1  
setIdentity(): void Reinitialize this Map4d as an identity.  
toJSON(): any Return a json object {matrix0: value0, matrix1: value1}  
createBoxMap(lowA: Point3d, highA: Point3d, lowB: Point3d, highB: Point3d, result?: Map4d): undefined | Map4d Static Create a mapping the scales and translates (no rotation) between boxes.  
createIdentity(): Map4d Static Create an identity map.  
createRefs(matrix0: Matrix4d, matrix1: Matrix4d): Map4d Static Create a Map4d, capturing the references to the two matrices.  
createTransform(transform0: Transform, transform1?: Transform): undefined | Map4d Static Create a Map4d with given transform pair.  
createVectorFrustum(origin: Point3d, uVector: Vector3d, vVector: Vector3d, wVector: Vector3d, fraction: number): undefined | Map4d Static Create a map between a frustum and world coordinates.  
fromJSON(json?: any): Map4d Static Create a map4d from a json object that the two Matrix4d values as properties named matrix0 and matrix1  

Properties

Name Type Description
transform0 Accessor ReadOnly Matrix4d Return a reference to (not copy of) the "forward" Matrix4d  
transform1 Accessor ReadOnly Matrix4d Return a reference to (not copy of) the "reverse" Matrix4d  

Defined in

Last Updated: 20 June, 2023