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CAD tip CAD tip # 12282:

   
Question CAD 
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Q - question

How to dimension radius and center of a spline in a given point?

A - answer AutoCAD cannot directly dimension a local radius of a spline curve. But you can use the following steps:
  • First explode the curve to arc segments with the command FLATTEN from Express Tools.
  • Now run the Dimension tool and hover on a given point on the curve to display (or draw) a local radius and and center point.

See the video:

If you need a better precision than in FLATTEN, set the variable PLINECONVERTMODE to 1, run the command SPLINEDIT with the option _Poly and specify the precision of the conversion - spline to arc segments.

In the case of spline alignments in Civil 3D you can also use the interactive command "Alignment curvature" (csct_SpiralDyn) from the add-on CADstudio Civil Tools.

ACADCivil
100% *  CAD 
22.6.2019    22718×  
Prices - CAD eShop:
applies to: AutoCAD · Civil 3D ·

See also:
Tip 13864:Displaying the curvature comb or radii of a general curve - CurvComb.
Tip 13221:Attractor - snap multiple objects to existing points/vertices.
Tip 13183:Lin2Cyl - bulk conversion of lines to 3D cylinders.
Tip 13040:iLogic - display information about complexity of an Inventor part.
Tip 12479:PkLength - export line lenghts to Excel.


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