Custom objects provide additional capabilities to AutoCAD ® and AutoCAD-based products. When the application that created the custom object is not available, a proxy object is substituted in its place.
Custom Objects
A custom object is a type of object created by an ObjectARX ® (AutoCAD Run-Time Extension) application, which typically has more specialized capabilities than standard AutoCAD-based objects.
Custom objects include
- Parametric solids in the AutoCAD Mechanical toolset
- Intelligently interactive door symbols in the AutoCAD Architecture toolset
- Polygon objects in the AutoCAD Map 3D toolset
- Associative dimension objects in AutoCAD and AutoCAD LT
In addition to Autodesk, many software vendors use ObjectARX to write programs that create graphical and nongraphic custom objects that are useful in their AutoCAD-based applications.
Proxy Objects
A proxy object is a substitute for a custom object when the ObjectARX application that created the custom object is not available. Later, when the application is available, the proxy object is replaced by the custom object.