#include <vgutil.h>

#include <vg.h>

void    

setObjectScale( vgObject *obj, float* xyzScale  ){

// -------------------------------------------------------

//

//  Public Function                             

//

//   Set the Scale of the vgObject using the XYZ scale

//   values passed in thru xyzScale[3]             

//

// -------------------------------------------------------

vgMat scaleMat;

double x,y,z,h,p,r;

    //

    // Sanity check we need an object and scale

    //

    if( obj == NULL || xyzScale == NULL){

        return;

        }

    //

    // We need a Matrix stack so create one

    //

    vgMatStack *scaleStack = vgNewMatStack();

    //

    // We need to grab the Real coordinate position

    // of the object

    //

    vgPosition *objPos = vgNewPos();

    vgGetWCSPos ( obj, objPos );

    vgGetPosVecD( objPos, &x, &y, &z,  &h, &p, &r);

    //

    // Set up the Matrix stack for the operation

    // required to set a scale matric on the object

    //

    vgPushMatStack( scaleStack);

    vgTransMat( scaleStack, x, y, z);

    vgRotMat(   scaleStack, h, 'z' );

    vgRotMat(   scaleStack, p, 'x' );

    vgRotMat(   scaleStack, r, 'y' );

    vgScaleMat( scaleStack,  sxyz[0],  sxyz[1],  sxyz[2]);

    //

    // Grab the accumlate matrix from the stack

    //

    vgGetMat(   scaleStack, scaleMat );

    //

    // Clear the stack

    //

    vgPopMatStack( scaleStack );

    //  

    // Apply the Matrix to the vgPos and then to the vgObject

    //

    vgPosMat( objPos, scaleMat );        

    vgPos( obj, objPos );

    //

    // Now Free the dynamically create variables

    //

    vgDelMatStack( scaleStack );

    vgDelPos( objPos );

} // setObjectScale

© Copyright 2004 Gordon Tomlinson  All Rights Reserved.

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