docs: public static void setGISCoordinateSystemAsDefault() {
  		String v;
  
  		try {
  			v = System.getProperty("fr.utbm.set.math.defaultCoordinateSystem2D"); //$NON-NLS-1$
  		} catch (Throwable exception) {
  			v = null;
  		}
  		CoordinateSystem2D cs2d = null;
  		if (v != null) {
  			cs2d = CoordinateSystem2D.valueOf(v);
  		}
  		if (cs2d == null) {
  			cs2d = CoordinateSystemConstants.GIS_2D;
  		}
  		CoordinateSystem2D.setDefaultCoordinateSystem(cs2d);
  
  		try {
  			v = System.getProperty("fr.utbm.set.math.defaultCoordinateSystem3D"); //$NON-NLS-1$
  		} catch (Throwable exception) {
  			v = null;
  		}
  		CoordinateSystem3D cs3d = null;
  		if (v != null) {
  			cs3d = CoordinateSystem3D.valueOf(v);
  		}
  		if (cs3d == null) {
  			cs3d = cs2d.toCoordinateSystem3D();
  		}
  		CoordinateSystem2D.setDefaultCoordinateSystem(cs2d);
  	}