2012

parametric solids (AutoCAD
®
Mechanical), intelligently interactive door
symbols (AutoCAD
®
Architecture), polygon objects (AutoCAD
®
Map 3D), and
associative dimension objects (AutoCAD and AutoCAD LT).
In addition to Autodesk, many software vendors use ObjectARX to write
programs that create graphical and nongraphical 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 to AutoCAD LT or
other host applications. Later, when the application is available, the proxy
object is replaced by the custom object.
Proxy objects have significantly reduced capabilities compared to their
corresponding custom objects. The extent to which proxy objects can be edited
is determined by the parent ObjectARX application. For example, operations
such as erasing and moving an object, or changing object properties, may or
may not be possible on a proxy object, depending on the application that
created it.
When you open a drawing, you might see a Proxy Information dialog box.
The dialog box tells you the total number of proxy objects in the drawing
(both graphical and nongraphical) and the name of the missing application
and provides additional information about the proxy object type and display
state. You can use the dialog box to control the display of proxy objects.
Object Enablers
An object enabler is a tool that provides specific viewing and standard editing
access to a custom object in the host applications when the application that
created the custom object is not present.
Object Enablers allow custom objects in a drawing to behave with more
intelligence than proxy graphics. Object enablers also facilitate workgroup
collaboration when using other Autodesk products.
If the ObjectARX application is not installed on your system, you can check
for available Object Enablers on the Web. For example, if you receive a drawing
that contains objects that were created in AutoCAD Architecture, but you
don't have that application installed on your system, the AEC Object Enabler
is downloaded so you can view those drawings as they were intended.
To control whether the program checks for Object Enablers, use the Live
Enabler settings on the System tab of the Options dialog box.
Work with Custom and Proxy Objects | 1435