private void addCuboidObstacle(float xc, float yc, float zc, float lx, float ly, float lz) {
		if (model.atomsOverlapCuboid(xc, yc, zc, lx, ly, lz)) {
			errorReminder.show(ErrorReminder.OBJECT_OVERLAP);
			viewer.setRectangleVisible(false);
			return;
		}
		viewer.addCuboidObstacle();
		model.addObstacle(new CuboidObstacle(xc, yc, zc, lx, ly, lz));
		model.notifyChange();
	}