2012

Table Of Contents
POINTCLOUDAUTOUPDATE
Controls whether a point cloud is regenerated automatically after
manipulation, panning, zooming, or orbiting.
POINTCLOUDDENSITY
Controls the number of points displayed at once for all point clouds in the
drawing view.
POINTCLOUDRTDENSITY
Improves performance by degrading the number of points displayed in the
drawing view zooming, panning, or orbiting in real time.
Work with Custom and Proxy Objects
Custom objects provide additional capabilities to the program and related
products. When the application that created the custom object is not available,
a proxy object is substituted in its place.
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 objects. Custom objects include 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 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.
1966 | Chapter 37 Work with Data in Other Formats