GTCO Cordless Roll-Up - Users Guide - Manual (Page 52)

Cordless Roll-Up 52
Advanced Programming Information
NOTE: The following information is not required for normal Cordless Roll-Up operation.
If you are programming for the Cordless Roll-Up product line, the topics listed below will be
useful:
 Coordinate Formats
 Measurement Scales
 Digitizing Modes
 Controlling the Alarm Using Remote Commands
 Programming Examples
These topics refer to commands that put Cordless Roll-Up in a different operating state.
The previous Remote Commands section contains detailed information about remote
commands.
Command emulations for CalComp and Summagraphics digitizer SuperSet menu selection.
Only Cordless Roll-Up commands, however, are referenced in this section.
Coordinate Formats
Coordinate format refers to the way the Cordless Roll-Up encodes XY coordinate
information before it sends the data out through a communication interface. The Cordless
Roll-Up and your application program must speak the same coordinate “language” for
information to be properly transferred.
You have three basic format choices to make:
 GTCO versus CalComp or Summagraphics emulation
 Binary versus ASCII coordinates
 Coordinate resolution
The topics below describe the formats available and show you how to select them. If you
are developing your own software, these sections will also help you choose a format that
suits your needs.
Binary Formats
Binary formats encode coordinate information compactly. Binary coordinate formats are
shorter than ASCII formats, transmit faster and take up less space if stored. On the other