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CAD tip CAD tip # 13333:

Question CAD 
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Q - question

"Zero length line" warnings or misplaced vertices when importing vertex coordinates from scripts.

A - answer Entering commands and numeric values, e.g. coordinates from scripts (.scr, SCRIPT) follows similar rules as manual input from the keyboard or bulk input of commands from the Windows clipboard.

For example, the entered coordinates may be subject to the currently set osnap mode, and thus the points entered may be "snapped" to existing geometry depending on the contents of the drawing and the current zoom.

To avoid this risk, it is recommended to disable osnaps (OSNAP = 0) before entering data from the script (or clipboard).

It is also sufficient to set the OSNAPCOORD variable - the value of this variable determines whether the coordinate entered from the keyboard/script or the current osnap mode takes precedence.

  • 0 - the current osnap mode overrides the coordinates entered from the keyboard
  • 1 - coordinates entered from keyboard or script override the current osnap mode
  • 2 - coordinates entered from keyboard override current osnap mode except for scripts

So the "correct" value for this purpose is 1.

100% *  CAD 
20.5.2022    1582×  
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applies to: AutoCAD · AutoCAD LT ·

See also:
Tip 12926:How to import point coordinates from Excel to AutoCAD?
Tip 10709:How to create a profile from imported XYZ points in Fusion 360?
Tip 10167:Keyboard shortcuts in Autodesk Fusion 360.
Tip 7329:Draw 3D polyline by length, azimuth, slope.
Tip 6606:How to create AutoCAD geometry from Excel?

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