losing initial value for Y axis value on setting X and Z

[jibbylala]

hello all,

i have a beginner question :

i have a robot

which i m setting on (0,1.45,0)  and then i m moving it like this:

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public  boolean moveBy(double x, double z)     /* Move the sprite by offsets x and z, but only if within the floor      and there is no obstacle nearby. */     {         if (isActive()) {             Point3d nextLoc = tryMove(new Vector3d(x, 0, z));             if (obs.nearObstacle(nextLoc, radius*OBS_FACTOR))                 return false;             else {                 doMove( new Vector3d(x, 0, z) );   // inefficient recalc                return true;             }         }         else    // not active            return false;     }  // end of moveBy()

Accessing TG for that robot,  return me always 0 at y axis (x,0,y)

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public TransformGroup getTG()     {         return objectTG;  }

but i want the same value,  when i get that TG after applying movement on this robot as shown

like(x,1.45,y)

so what i can do before return TG or where that y value which i set as initial for y why it's returning y=0.

i want "y" the always same return which i set initially; irrespective of the x and z of TG.

thanks,
Jibbylala