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CAD tip CAD tip # 6683:

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Highlighting object extents by bounding-boxes.

A - answer The LISP application CADstudio BBox automatically draws either permanent or temporary bounding boxes (rectangles or circles) to selected objects in an AutoCAD drawing. BoundingBoxes can highlight the extent (boundary) of a given entity.

The BBox command creates bounding boxes as new entities in the current layer. You can choose between Rectangles and Circles.

The BBox1 command is an interactive version. It draws red bounding boxes for all objects which are hoovered-over by your mouse cursor. These temporary lines are not part of the drawing and they are erased on any screen redraw (F7/F7, Redraw).

The free application BBox can be downloaded from

100% *  CAD 
20.5.2009    4927x  
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See also:
Tip 10804:What features are not available in the 32-bit version of AutoCAD 2017 and 2016?
Tip 10682:Automatic classification of drawing objects by their properties.
Tip 10658:How to open a R/O DWG without the read-only warning?
Tip 10544:How to highlight polyline nodes and segments?
Tip 9927:What is the maximum size of a polyface mesh in AutoCAD?

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