workplane

In computing, terminology used in CAD (computer-aided design). Workplanes simplify the definition of the way a solid can be shaped. Modern CAD systems are designed to work with virtual solid shapes manipulated in the same way as the real solid would be. Every CAD object has at least three workplanes; those for length, width, and height.

Additional workplanes may be created as required. To drill a hole in a solid, it is necessary to define the position of the hole and how far into the solid it is to be drilled. A workplane is created to hold the position of the hole relative to the object. The drilling process then describes how material will be taken away from the solid as the hole is projected a specific distance from the workplane.