SimReal SimReal - Mathematics - Vector Geometry - Coordinate Planes Coordinate Planes In the simulation window we have the three coordinate axes (x, y, z) of the Cartesian coordinate system. By the help of the three checkboxes, we can visualize the following three planes: - xy plane: z = 0 - xz plane: y = 0 - yz plane: x = 0 By the help of the slider (Opacity), we can change the opacity of the planes: Complete opacity: 1 No opaticy: 0 Default opacity: 0.75 Rotate the camera by dragging with the right mouse button, or hold down the Ctrl key and drag. To zoom, drag with the left+right mouse buttons, or hold down the Alt/Option key and drag, or use the mouse wheel. Touch screen: pinch/extend to zoom, swipe or two-finger rotate.