Trimming 3D Mesh Without adding extra vertices

Layton Korson — Fri, 16 Sep 2016 14:08:42 GMT

Hi,

I am creating a 3D model for a proposed Highway and I need to trim the limits of the mesh for breaks in the road at bridges. I have found a couple different ways to trim the mash to match the correct limits, however, each method creates a bunch of extra vertices. The top surface i still drawn in correctly which is good, however for turning in final plans I would like to have a more aesthetically pleasing model.

Below is a summary of each method I have used to clip the mesh. There appears to be no rhyme or reason to why the extra vertices pop in, because one side will do it and another will not and it varies, sometimes it will add them and other times it will not.

Please let me know if anyone first of all knows why it is doing this, how to trim the mesh object without adding the extra vertices and if someone has a better or more efficient way of trimming the mesh objects I am open to suggestions.

Thanks,

Layton

The first method I used to trim the model is using a fence clip to trim the mesh back to the limits. The pictures below show the begining and end result of the trimming. As you can see in the second picture there are extra vertices drawn in the components fence.

The other method I tried using was the "Mesh Project" Tool:

I had similar results using this tool as shown by the pictures below.

Roadway Designer create surface proposed surface tin does not follow the top surface of the model.

Layton Korson — Tue, 19 Jul 2016 12:12:18 GMT

I am creating a surface in Roadway Designer and when I run the surface the Tin that is automatically created will draw down to the bottom surface of the road base at certain points and then jump back up to the top surface of the road and it zig zags like this all the way across the road surface.

For example, the tin surface will go from the top edge of the median barrier to the bottom of the base at the left shoulder, then to the top of the road at the crown point and then back to the bottom of the base at the right shoulder. This just started happening to my model after having no problems.

When I add transverse features to the surface it also follows the same points that the proposed tin is following.

Does anyone have any ideas why this is happening? Thanks!!

Layton Korson's Activities

Trimming 3D Mesh Without adding extra vertices

Roadway Designer create surface proposed surface tin does not follow the top surface of the model.