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Classes

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Namespace SpiderGL.Math.Mat3

The SpiderGL.Math.Mat3 namespace defines operations on 3x3 matrices.

Namespace Summary
Constructor Attributes Constructor Name and Description
 
SpiderGL.Math.Mat3
The SpiderGL.Math.Mat3 namespace.

Method Summary

Method Attributes Method Name and Description
<static>  
SpiderGL.Math.Mat3.diag(d)
Creates a diagonal 3x3 matrix.
<static>  
SpiderGL.Math.Mat3.dup(n)
Duplicates the input 3x3 matrix.
<static>  
SpiderGL.Math.Mat3.identity()
Creates an identity 3x3 matrix.
<static>  
SpiderGL.Math.Mat3.mul2(m, v, z)
Pre-multiplies a 2-dimensional vector by a column-major 3x3 matrix.
<static>  
SpiderGL.Math.Mat3.mul3(m, v)
Pre-multiplies a 3-dimensional vector by a column-major 3x3 matrix.
<static>  
SpiderGL.Math.Mat3.one()
Creates a 3x3 matrix initialized with one.
<static>  
SpiderGL.Math.Mat3.scalar(s)
Creates a 3x3 matrix initialized with a scalar.
<static>  
SpiderGL.Math.Mat3.to44(m)
Extends a 3x3 matrix to a 4x4 matrix.
<static>  
SpiderGL.Math.Mat3.transpose(m)
Creates the transpose of a 3x3 matrix.
<static>  
SpiderGL.Math.Mat3.zero()
Creates a 3x3 matrix initialized with zero.

Namespace Detail

SpiderGL.Math.Mat3
The SpiderGL.Math.Mat3 namespace. The provided functions operate on 3x3 matrices, represented as standard JavaScript arrays of length 9. In general, matrices are considered in column-major format.

Method Detail

  • <static> {array} SpiderGL.Math.Mat3.diag(d)
    Creates a diagonal 3x3 matrix.
    Parameters:
    {array} d
    A 3-dimensional vector
    Returns:
    {array} A new 9-component array representing a 3x3 matrix with diagonal elements set to d.
  • <static> {array} SpiderGL.Math.Mat3.dup(n)
    Duplicates the input 3x3 matrix.
    Parameters:
    {array} n
    The input matrix.
    Returns:
    {array} A new 9-component array r, where r[i] = m[i] (same as m.slice(0, 9)).
  • <static> {array} SpiderGL.Math.Mat3.identity()
    Creates an identity 3x3 matrix.
    Returns:
    {array} A new 9-component array representing an identity 3x3 matrix.
  • <static> {array} SpiderGL.Math.Mat3.mul2(m, v, z)
    Pre-multiplies a 2-dimensional vector by a column-major 3x3 matrix.
    Parameters:
    {array} m
    The input column-major 3x3 matrix.
    {array} v
    The input 2-dimensional vector.
    {number} z Optional, Default: 0
    The 3rd component of the input 2-dimensional vector.
    Returns:
    {array} A new 2-dimensional vector r, where r = m * v.
  • <static> {array} SpiderGL.Math.Mat3.mul3(m, v)
    Pre-multiplies a 3-dimensional vector by a column-major 3x3 matrix.
    Parameters:
    {array} m
    The input column-major 3x3 matrix.
    {array} v
    The input 3-dimensional vector.
    Returns:
    {array} A new 3-dimensional vector r, where r = m * v.
  • <static> {array} SpiderGL.Math.Mat3.one()
    Creates a 3x3 matrix initialized with one.
    Returns:
    {array} A new 9-component array r, where r[i] = 1.
  • <static> {array} SpiderGL.Math.Mat3.scalar(s)
    Creates a 3x3 matrix initialized with a scalar.
    Parameters:
    {number} s
    The input scalar.
    Returns:
    {array} A new 9-component array r, where r[i] = s.
  • <static> {array} SpiderGL.Math.Mat3.to44(m)
    Extends a 3x3 matrix to a 4x4 matrix.
    Parameters:
    {array} m
    The input matrix.
    Returns:
    {array} A new 16-component array representing a 4x4 matrix r, with the input 3x3 matrix as tue upper-left 3x3 region with [0, 0, 0, 1] as last row and column.
  • <static> {array} SpiderGL.Math.Mat3.transpose(m)
    Creates the transpose of a 3x3 matrix.
    Parameters:
    {array} m
    The input matrix.
    Returns:
    {array} A new 3x3 matrix representing the transpose of m.
  • <static> {array} SpiderGL.Math.Mat3.zero()
    Creates a 3x3 matrix initialized with zero.
    Returns:
    {array} A new 9-component array r, where r[i] = 0.