SIMatrix3.TransposeInPlace method

This example demonstrates how to use the SIMatrix3.TransposeInPlace method.

NewScene (null, false);
var oRoot = Application.ActiveProject.ActiveScene.Root
// Create two cubes, the first one is rotated and second 
// is the transpose in place of the first one
var oCube = oRoot.AddGeometry("Cube","MeshSurface", "Cube")	
var oCube2 = oRoot.AddGeometry("Cube","MeshSurface", "Cube2")	
var oTrans = oCube.Kinematics.Local.Transform
var oTrans2 = oCube2.Kinematics.Local.Transform
var oMat3 = XSIMath.CreateMatrix3()
oTrans2.GetRotationMatrix3 ( oMat3 );
// Modify the matrix to scale and rotate around z
oMat3.value(0,0) = 2 * Math.cos (45);
oMat3.value(0,1) = -2 * Math.sin (45);
oMat3.value(1,1) = 2 * Math.cos (45);
oMat3.value(1,0) = 2 * Math.sin (45);
oTrans.SetRotationFromMatrix3 ( oMat3 );	
oCube.Kinematics.Local.Transform = oTrans;
var vbArr = new VBArray( oMat3.Get2() );
var array = vbArr.toArray();
Application.LogMessage( "SIMatrix3 before transpose" +
"m00:" + array[0] + " m01:" + array[1] + " m02:" + array[2] + 
"m10:" + array[3] + " m11:" + array[4] + " m12:" + array[5] + 
"m20:" + array[6] + " m21:" + array[7] + " m22:" + array[8] );
oMat3.TransposeInPlace()
oTrans2.SetRotationFromMatrix3 ( oMat3 );
var vbArr = new VBArray( oMat3.Get2() );
var array = vbArr.toArray();
Application.LogMessage( "SIMatrix3 after transpose" +
"m00:" + array[0] + " m01:" + array[1] + " m02:" + array[2] + 
"m10:" + array[3] + " m11:" + array[4] + " m12:" + array[5] + 
"m20:" + array[6] + " m21:" + array[7] + " m22:" + array[8] );
oCube2.Kinematics.Local.Transform = oTrans2;
// Expected results:	
//INFO : SIMatrix3 before transpose 
//		m00:1.0506439776354594	m01:-1.7018070490682368 m02:0 
//		m10:1.7018070490682368	m11:1.0506439776354594	m12:0	
//		m20:0			m21:0			m22:1
//INFO : SIMatrix3 after transpose 
//		m00:1.0506439776354594	m01:1.7018070490682368	m02:0
//		m10:-1.7018070490682368 m11:1.0506439776354594	m12:0 
//		m20:0			m21:0			m22:1

• SIMatrix3.TransposeInPlace.1.vbs

SIMatrix3 TransposeInPlace