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CAD tip CAD tip # 5241:

Question CAD 
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Q - question

Slow object selection preview highlighting.

A - answer AutoCAD 2007 (and higher) previews the selected objects (hoover) by thickening the objects under cursor.

If you are slowed down by this function in large drawings (e.g. on cycling of overlapping objects), you can switch to the classic entity highlighting with dashed lines -- set the PREVIEWEFFECT variable to 0 (the default value is 2). You can also set this value using the dialog Options > Selection > Visual effects > Selection preview. With the "Advanced options" button you can exclude some complex (slow) object types (e.g. xrefs, mtexts, tables) from the selection preview.

100% *  CAD 
19.10.2006    17567x  
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See also:
Tip 11017:How to select a DWG object by its internal ID, its "handle"?
Tip 10596:Changing colors of the Inventor color schemes (UI).
Tip 10544:How to highlight polyline nodes and segments?
Tip 10303:Overview of CAD formats supported in Inventor 2016 (import/export).
Tip 10299:Hide AutoCAD drawing objects with Ctrl+Alt+H.

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