Hi ManChoon,
This is probably because you are using perspective projection. Use parallel
projection:
View view = universe.getViewer().getView();
view.setProjectionPolicy(View.PARALLEL_PROJECTION);
--Renoir
ManChoon wrote:
> I have a 3D coordinate system.
> I draw the 0.5f scale's grid lines at the XY plane.
> I set the camera at Vector3f(0.0f, 0.0f, 2.0f);
>
> I found the data Point3f(-0.5f, -0.5f, 0.0f) sit on the grid line perfectly.
> but, not for this data Point3f(-0.5f, -0.5f, 1.0f).
>
> I understand it is nearer to camera. So it appeared not on the grid line.
>
> How can I have a cross-section view of the 3D coordinate system?
> Any idea.
>
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