Edge Rasterizer
High Speed Inkjet Rasterizer for Electronic Printing
Advanced Settings
The Advanced Settings are used for parameters that are either rarely modified or which are only used for debugging purposes.
Arc Resolution - the Edge rasterizer must first unionize the Gerber input data prior to rasterizing it. This requires converting all curves into segments. The resolution can be controlled by this parameter - the value is the arc subtended by each segment in degrees.
advanced_settings_dialog.gif
arcres.gif
arcsag.gif
Chord Error - the Edge rasterizer must first unionize the Gerber input data prior to rasterizing it. This requires converting all curves into segments. The resolution can be controlled by this parameter.

In this case, for each arc, the program computes the number of segments needed to approximate it based on the maximum difference between the arc and its approximation.

This means that arcs of larger radius need more segments.

Chord Error is often referred to as Arc Sag.
Thread Number - parts of the Edge Rasterizer can be multi-threaded. This parameter controls the number of threads (Note: to use additional threads requires additional memory bitmap buffers -- unless more memory is available extra threads will not help.)
Boolean Additional Arguments - allows a user to inject additional arguments into the boolean engine. Only for debugging purposes.
Striping - controls how a large file is subdivided into sections in order to prevent a exponential growth in processing time. This is normally computed automatically and not under user control.
Droplet Additional Arguments - allows a user to inject additional arguments into the dropletplacement engine. Only for debugging purposes.
CHORD ERROR