Jump to content
Sign in to follow this  
michaelk

What's this?

Recommended Posts

Looking for more DTM wisdom.

The giant triangular impact craters are outside my fence.

What happened?

thanks

michaelk

Share this post


Link to post

Before you run your model, I suggest you check your 3D polys not only in plan view, but in Section view. That usually catches points that you forgot to add the Z value to.

Share this post


Link to post

Thanks, I'll go digging for stray geometry.

If I find anything, is it possible to remove it from an existing DTM?

michaelk

Share this post


Link to post

You can remove it, reassign the Z value, move it, etc. Changing the Z value would take place in the Object info pallette.

Removing would be selecting and performing any operation in any view/

I have found that moving a 3D loci or point seems to work best in plan view, but it also seems to de-assign its Z value and it has to be have new input in the object info pallette.

Share this post


Link to post

Turns out there are no stray objects at z=0 or anywhere else.

The craters only appear in the proposed views. They are outside the fence, in an area that is in a concave cove or bay of the fence.

Any other ideas?

Thanks

michaelk

Share this post


Link to post
They are outside the fence, in an area that is in a concave cove or bay of the fence.

Does this mean that you're are using an arc rather than segmented fence ?

Share this post


Link to post

No. the fence is converted from a polygon. The segments make up a little concave area where are the craters are.

michaelk

Share this post


Link to post

I'm continuing to have craters that are only in the proposed view of the DTM and outside the fence.

I've double checked, made new DTMs from scratch - I'm pretty sure I don't have any stray geometry hanging out. And it doesn't show up in the existing view of the DTM. Only the proposed.

Any ideas???

thanks

michaelk

Share this post


Link to post

If you post the DTM file one of us can have a look at it and try to find out what the problem is.

Share this post


Link to post

Michaelk I don't get the craters you do (see image below). The file you posted doesn't have the source data for the DTM in it so my guess is that the problem is with your source data. Probably 3D loci at the incorrect height. Check for 3D loci that are in invisible Class.

Share this post


Link to post

Now I'm really confused...

I just downloaded the file I posted and I STILL get the craters...

michaelk

Share this post


Link to post

The 2D I see is quite different to yours. Have you checked your source 3D data to make sure there aren't 3d loci (visible or invisible) where there shouldn't be.

Share this post


Link to post

Weird.

It's the exact same file...

Is there a setting that could explain it?

michaelk

Share this post


Link to post

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

 

7150 Riverwood Drive, Columbia, Maryland 21046, USA   |   Contact Us:   410-290-5114

 

© 2018 Vectorworks, Inc. All Rights Reserved. Vectorworks, Inc. is part of the Nemetschek Group.

×
×
  • Create New...