Delete me: Draw Module Overview (Rev #2, changes)

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Programmer's Reference Manuals

» Part 8 - Non-kernel input/output?

» Draw Module?

» Overview

Overview

The Draw Module provides an vector-graphics implementation drawing, of based PostScript on type drawing. By grouping lines, curves and moves using a user-defined co-ordinate system, they can be manipulated as one object. This object is called aMOVE/DRAW and Bezier curve
primitives; much like a subset of Postscript. A sequence of primitive operations is called a path . Objects can be obtained by grouping paths.

A Paths path and objects can be manipulated in a manner number of different ways. A comprehensive list of options is provided below:

• Rotation, scaling and translation of the path
• Thickness of a line
• Description of dots and dashes for a line
• Joins between lines can be mitred, round or bevelled
• Leading or trailing ends of a line can have the following shapes; butt, round, squared or triangled
• Filling of arbitrary shapes
• Fill the interior of a shape

A path can be manipulated directly on screen or in memory using different sets of SWIs.