protected Triangle getTriangleAtPoint(float x, float z, Vector3f scale, Vector3f translation) {
        Triangle tri = getTriangleAtPoint(x, z);
        if (tri != null) {
            tri.get1().multLocal(scale).addLocal(translation);
            tri.get2().multLocal(scale).addLocal(translation);
            tri.get3().multLocal(scale).addLocal(translation);
        }
        return tri;
    }
Get a representation of the underlying triangle at the given point,
translated to world coordinates.

@param x local x coordinate
@param z local z coordinate
@return a triangle in world space not local space
jme3-terrain/src/main/java/com/jme3/terrain/geomipmap/LODGeomap.java