offset axes

gistfile1.java

    private void renderOffsetAxes() {
		Axes axes = (Axes) shape;
		boolean b = viewer.transformManager.getPerspectiveDepth();
		viewer.transformManager.setPerspectiveDepth2(false);
		viewer.transformPoint(axes.originPoint, originScreen);
		dx = originScreen.x - (viewer.dimScreen.width - OFFSET_DISTANCE);
		dy = originScreen.y - (viewer.dimScreen.height - OFFSET_DISTANCE);
		originScreen.x -= dx;
		originScreen.y -= dy;
		int originScreenZ;
		for (int i = 3; --i >= 0;) {
			viewer.transformPoint(axes.conePoints[i], coneScreens[i]);
			coneScreens[i].x -= dx;
			coneScreens[i].y -= dy;
			x12 = coneScreens[i].x - originScreen.x;
			y12 = coneScreens[i].y - originScreen.y;
			z12 = coneScreens[i].z - originScreen.z;
			r12 = (float) Math.sqrt(x12 * x12 + y12 * y12 + z12 * z12);
			if (r12 < 0.0001f)
				continue;
			r12 = 0.75f * OFFSET_DISTANCE / r12;
			originScreenZ = originScreen.z;
			coneScreens[i].x = (int) (originScreen.x + x12 * r12);
			coneScreens[i].y = (int) (originScreen.y + y12 * r12);
			coneScreens[i].z = originScreen.z = 1;
			g3d.fillCylinder(colors[i], Graphics3D.ENDCAPS_SPHERICAL, 4, originScreen, coneScreens[i]);
			originScreen.z = originScreenZ;
			viewer.transformPoint(axes.axisPoints[i], axisScreens[i]);
			axisScreens[i].x -= dx;
			axisScreens[i].y -= dy;
			x12 = axisScreens[i].x - originScreen.x;
			y12 = axisScreens[i].y - originScreen.y;
			z12 = axisScreens[i].z - originScreen.z;
			r12 = (float) Math.sqrt(x12 * x12 + y12 * y12 + z12 * z12);
			r12 = OFFSET_DISTANCE / r12;
			axisScreens[i].x = (int) (originScreen.x + x12 * r12);
			axisScreens[i].y = (int) (originScreen.y + y12 * r12);
			axisScreens[i].z = 1;
			g3d.fillCone(colors[i], Graphics3D.ENDCAPS_SPHERICAL, 10, coneScreens[i], axisScreens[i]);
			frameRenderer.renderStringOutside(axisLabels[i], colors[i], axes.font3d, axisScreens[i], g3d);
		}
		viewer.transformManager.setPerspectiveDepth2(b);
	}