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CAD tip CAD tip # 6558:

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If you combine work in different angle units (e.g. degrees and grades), you will probably need to setup your macros and LISP applications so that they use angles in a common, consistent format - in degrees, or alternatively in degrees, minutes and seconds.

By default, relative coordinates are entered as:

@length< angle
which counts with the angle value in the currently set angle units - if you switch to grades or radians, this format will no longer work.

Therefore use a special coordinate format:

@length<< angle
which always uses angles entered in degrees (even when you have e.g. grades as current angle units).

Another option - allowing to enter angles also in surveying minutes and seconds - is the format:

@length< angledminutes'seconds"
giving e.g.:
@500<45d15'25"
@500<45d
This format interprets the angles always in degrees. Similarly you can force entering grades (100g) or radians (1.5r) wherever AutoCAD prompts for angles.
ACADACLTADTCivilMapACADM
100% *CAD
3.3.2009    17879×  

See also:
Tip 14183:PLKangles - display/check kink angles in polylines.
Tip 13967:Drawing polylines using arbitrary length units - 2DpolyC.
Tip 13737:Formatting leading zeros in AutoCAD fields (and automatic field update).
Tip 12697:Opposite angle for angular dimensions in Inventor drawings (iLogic).
Tip 12201:Quick dynamic measuring of objects near your cursor.


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