Latest posts for the topic "Converting local coordinates to global coordinates"

Converting local coordinates to global coordinates

tbomedia — GMT

Is there a way to convert a mesh's verex points into their global positions?

I can't seem to find a translatePoint function in the Matrix3D class.

I'm trying to get the matrix transformation of the mesh then use that along with the local vertex positions to find their global positions.

The flash Matrix3D class has a function called "transformVector" which is what I'm after.

Thanks.

*I've also tried converting the Alternativa Matrix3D into a flash Matrix3D object without success.

Re:Converting local coordinates to global coordinates

tbomedia — GMT

I Think I've found a solution, if theres a better way I'd love to hear it :)

[code]
public function getGlobalVertices(object:Mesh):void {

var points:Array = object.vertices.toArray(true);

var i:int;
var len:int = points.length;

var m1:Matrix3D = object.transformation.clone();
var m2:Matrix3D = new Matrix3D();

for (i = 0; i < len; i++) {

var v:Vertex = points[i];

m2.copy(m1);
m2.translate(v.x, v.y, v.z);

var vx:Number = m2.d;
var vy:Number = m2.h;
var vz:Number = m2.l;

trace(vx, vy, vz);
}
}
[/code]

Re:Converting local coordinates to global coordinates

tbomedia — GMT

EDIT - need to change translate to "translateLocal"

Converting local coordinates to global coordinates

makc — GMT

[quote=chris foulston]Is there a way to convert a mesh's verex points into their global positions?[/quote]vertices have global coordinates property in namespace alternativa3d:[code]
import alternativa.engine3d.alternativa3d;
...
var f:Face, mesh:Mesh = Mesh (obj);
for each (f in mesh.faces) {
var p:Point3D = Vertex (f.vertices [0]).alternativa3d::globalCoords;
...[/code]

Converting local coordinates to global coordinates

tbomedia — GMT

ah I thought there might have been some namespace trickery going on.

Thanks.