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CAD tip CAD tip # 7392:

Question CAD 
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Q - question

How to measure using paper units in paper space?

A - answer When you use object snap (osnap), model space objects will be measured in paperspace using the model space units. Se the result will be reported in true model units, not in the current "paper" units defined by the viewport scale. The osnaps makes the difference.

This applies both to the DIST and MEASUREGEOM commands, and to dimensioning.

This behaviour differs between AutoCAD 2006 and version 2007 (plus higher) - the version 2006 has used paperspace units even for osnap-distances.

If you want to dimension modelspace objects with osnaps and display the values in paperspace units, set the DIMASSOC variable to 1. If you want to measure distance between modelspace objects with osnaps and represent the values in paperspace, use an alternative command for measuring - instead of DIST, use the Lisp function:

(strcat "Distance "(rtos(getdist"First point: ")))  
100% *  CAD 
4.6.2010    16799×  
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applies to: AutoCAD ·

See also:
Tip 13228:DWG or DXF file exported to/from Fusion 360 has incorrect size (scale, 10x larger/smaller).
Tip 12448:Pan view (change view target) in multiple viewports of a layout.
Tip 7103:How to convert a drawing from inches to centimeters (or vice versa)?
Tip 5822:Wrong text size on labels in paper space.
Tip 1028:How to export an AutoCAD DWG drawing to a hi-res raster file (e.g. TIFF,JPG)?

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