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CAD tip CAD tip # 7255:

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Q - question

Quickly select improperly closed polylines in your drawing.

A - answer For the selection of not properly closed areas (outline loops) in a drawing you can use the Map+Civil command MAPCLEAN. If the outlines are separate polylines, you can perform the analysis of closed areas also in the plain AutoCAD.

You can select the not properly closed (open) polylines in your DWG drawing using the QSELECT command. Choose the "Object type" to Polyline, in the "Property" list pick Closed and set the "Operator" and "Value" to = No.

Please note that this checks the internal polyline property only, not the geometric characteristics - you can have a perfectly closed polyline (geometrically) with the Close-property set to False.

100% *  CAD 
12.3.2010    8976×  
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applies to: AutoCAD · AutoCAD Architecture ·

See also:
Tip 11769:How to convert border lines (rails) to a surface?
Tip 10249:Osnap mode Geometric Center in AutoCAD 2016.
Tip 10128:How to convert a line-based map to closed polygons (lots)?
Tip 9097:How to convert 3D polylines to 3D surfaces?
Tip 7795:Offset curve for multiple objects.

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