Indoor Display Concept

To allow entering and editing of walls in three-dimensional space using a two-dimensional computer screen, you can change the view on the database that you get through your screen. Just imagine your screen being a thin slice of the whole three-dimensional database. You can define the position of this slice – called the view plane - in space. Everything that crosses this slice or lies exactly in the same plane is then visible on your screen, see Figure 1.

Figure 1. Indoor display.

When you enter a new wall, it is always placed in your current view plane. Walls crossing the view plane appear as lines (intersection between the wall and the view plane).