07 3D coordinate system

Photo: The GraphGrid frame with a grid of rubber bands and two axes on the TactiPad

Photo: The GraphGrid frame provided with the X, Y and Z axis

Although the main application for the GraphGrid is often a regular rectangular grid, there are other applications in which one or more rubber bands can be placed diagonally, in addition to the regular horizontal and vertical axes.

3D coordinate system

By adding a third axis which passes through the intersection of the other two axes (the origin) at an angle between 30 and 45 degrees a 3D coordinate system occurs. In here you can create drawings of three-dimensional bodies.

Shape outline

You can use the rubber bands to compose the outlines of 3D bodies as well, such as a cube or pyramid. Again, you can distinguish between different (visible or invisible) line segments with higher and lower running rubber bands. The indents at all four outsides of the GraphGrid allow you to position the rubber bands at any position and angle.