CAD Forum - tips, tricks, discussion and utilities for AutoCAD, Inventor, Revit and other Autodesk products [www.cadforum.cz]

CAD tip # 12282:

Question CAD
% platform category

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

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

* CAD

22.6.2019 1155×

Comments Tell a friend

Prices - CAD eShop:

AutoCAD

Civil 3D

AEC Collection

applies to: AutoCAD · Civil 3D ·

See also:
Tip 9038:	Double helix - twisted pair in Inventor
Tip 8962:	Project 2D curve to a 3D sphere.
Tip 7439:	Extended FILLET functionality.
Tip 7005:	Total length of lines in a drawing (by layer) - AddLen

Selected tip: DXF in R12 format saved from A2000 does not explode MTEXT to TEXT (unlike R14)

Back All CAD Tips

AutoCAD hatch flood-fill does not honor all boundaries. « | » PropByLayer - an inverse function to SetByLayer.

Have we helped you? If you want to support the CAD Forum web service, consider buying one of our CAD applications, or our custom software development offerings, or donating via PayPal (see above). You may also add a link to your web - like this "fan" link:

CAD: OS: Categ:
Text:	FAQ glossary

Featuring:
Track your time spent working on AutoCAD or Revit jobs - automatically with
CADstudio JobTime More info

Please use these tips at your own risk.
CAD Studio is not responsible for possible problems that may occur as a result of using any of these tips.


Login/Register:
Visitors: 1592