# Rectangle Options

When you click on the Rectangle Options button you will see the dialog where you can adjust the parameters for the horizontal and vertical lines drawn in the domain.

Notes:

- If you only want one line drawn, set the number of lines to 1. The line drawn is then defined by the value of the `From` parameter.
- You can use only numbers, not constants like Pi or expressions such as Pi - atan(1) in the text fields.

ZMap (c) 2002-2007, Bert G. Wachsmuth
Web: pirate.shu.edu/~wachsmut
Email: wachsmut@shu.edu