Construction geometry is used for positioning and as an aid to drawing.

This section shows how to draw using construction lines and circles, just as you would normally do when working on a drawing board.

Construction lines differ from real lines in that they are considered to be of infinite length. Only full construction circles can be drawn.

When creating construction lines you can indicate a point for the line or enter the exact coordinates via the keyboard.

Enter coordinates using the following format:

The x and y coordinates are separated by a comma. When you have typed in the coordinates, press [Enter].