Overview

The QisBool library was developed for use in microelectronic mask making and layout software. It is integer based and uses 4 byte signed integers for the coordinate data -- thus limiting the max and min coordinate values to 2,147,483,647. [This matches the GDSII stream file database.]

To convert from real world units (such as um or mil) one defines a database tick and the number of database ticks per real world unit.

There are two basic entity types supported by QisBool - polygons and paths.

Polygons are represented by an array of X,Y coordinate pairs (note that the first and last coordinate of each polygon are the same point so it requires 5 pairs to define a rectangle). Paths are represented by an array of X,Y coordinate pairs along with a width and and an end-cap definition.

When processing multiple polygons one uses an array of arrays.

QisBool also supports both Leonov and Re-Entrant (or keyhole) polygon descriptions.

QisLib Functions

Initialization & Cleanup

Execution

Information Functions

Execution Control

Utility Functions