Glossary

ACI
AutoCAD Color Index (ACI)
ACIS
The 3D ACIS Modeler (ACIS) is a geometric modeling kernel developed by Spatial Corp. ® (formerly Spatial Technology), part of Dassault Systems.
bulge
The Bulge value is used to create arc shaped line segments in Polyline and LWPolyline entities.
CAD
Computer-Assisted Drafting or Computer-Aided Design
CTB
Color dependent plot style table (ColorDependentPlotStyles)
DWG
Proprietary file format of AutoCAD ®. Documentation for this format is available from the Open Design Alliance (ODA) at their Downloads section. This documentation is created by reverse engineering therefore not perfect nor complete.
DXF
Drawing eXchange Format is a file format used by AutoCAD ® to interchange data with other CAD applications. DXF is a trademark of Autodesk ®.
STB
Named plot style table (NamedPlotStyles)
true color
RGB color representation, a combination red, green and blue values to define a color.