Contours vertex to arcs with a minimum radii

[rodrigo_carreras6AB7W]

Hello everyone! Is there a way to convert vertexes of a contour to arcs with a minimum radii?

The only way I figured it out is converting every contour to an alignment, and then modifying the alignment's radii. 

I wonder if there is another way to do it, to a group of contours, automatically.

[rl_jackson]

Without a picture of what your wanting (and I'm not sure why you'd convert a contour into an alignment) could you be looking for contour smoothing in the surface properties.

[Jeew-m]

Hi,

Type PE on command line.

Then select multiple

Select all your contours

Then select fit from the command line.

You will see all the vertex are now converted into curves.

One thing to note is that now there will be very less/no straight section on the contours

[Joe-Bouza]

All Contours are lies. And there’s the proof.

anyway, use MAPCLEAN 

[AllenJessup]

It looks like you're not working with Civil 3D contours but with polylines representing contours. Is that correct?

[rodrigo_carreras6AB7W]

Thank you for your answers. 

The thing is that I have this rice farm project. The tractor must have a path that matches the contours of my surface. 

The problem is that the countours have vertexes, and I need them to be arcs that have a minimum radii (for example, 20 meters), the minimum to allow the tractor to turn without problems.

I need a method that assures me that all contours will have arcs instead of vertexes, with that minimum radius.

[rl_jackson]

In that case I would extract a contour line, and then convert the contour to an alignment with the radius set to 20m. You'll not get a variable solution, but your minimum radii would be achieved.

[rodrigo_carreras6AB7W]

I tried, but sometimes (I don't know why) the alignment has curves with a radius value that is less than the required (less than the default radius I entered when I created the alignment). I have to go to the geometry editor and assign the value manually.

Also, the problem is that I have several contours, turning all of them into alignments take time.

[rl_jackson]

That's most likely because the contour has something already less than your minimum. That's where @Joe-Bouza mention of MAPCLEAN may assist by removing vertices (weeding) from the contour. The curves in contours are defined by the smoothing factor, there's no control of that since the TIN model is the control. Another option would be to remove all smoothing and then extract the contour and create the alignment with the minimum radii. This would ensure sharp points that would get the radii added.

As far as automating it. That would probably require programing of some type (lisp or dynamo).

[Joe-Bouza]

I would suggest not trying to get contours from the surface to match you design requirement but design the contours and use them to create you surface.

much easier than after the fact

[nkiakas]

Hi @rodrigo_carreras6AB7W 

I was wondering why you need to do it...

After your reply with the tractor looks like that, yes you have to do it.

I guess you may have thousands of contour lines.

Regards