Reference Point Functions
You can use reference point functions to manipulate reference points and the cursor. The functionality does not appear on banner menus.
A reference point is a location set by the user and maintained by the editor. Reference points are used to measure relative distances, such as the distance from the reference point to the cursor.
Each cellview can have only one reference point. The reference point can be active or inactive. You can display a star-marker at the location of the reference point by setting the displayRefPoint global environment variable. Reference points are displayed on the hilight drawing3 layer.
You can set the reference point coincident with a particular edge or vertex using gravityOn, then measure the distance from the reference point to the cursor as a means of separating objects by design rule spacings. You can also set the reference point automatically whenever you enter a point by setting the autoSetRefPoint global environment variable. The distance from the cursor to the reference point is displayed in the status banner of the window.
You can move the cursor using bindkeys rather than the mouse. You can move the cursor to the reference point, then “bump” the cursor by fixed distances (for example, 0.5 microns, 1.0 microns) and enter a point using a bindkey. In this way, accurate distances can be measured and created at “high altitude.”
Related Topics
Return to top