Jump to content

Land Desktop 2006 LIDAR


Recommended Posts

Posted

I have a LIDAR surface and actual field survey shots. I need to adjust the TIN surface to the field survey shots. The difference from the LIDAR surface and the filed shots vary from from 1.5 to 12 feet. So the adjustment would have to be an average of the field shots or a rubber sheet adjustment of the LIDAR TIN surface.

Posted

The LIDAR was flown last October and processed over the winter. In the mountains we have not seen any data with in a couple of feet of the actual field surveys

Posted

Is there a question in there somewhere?

Posted

Yes, as stated, I want to know if there is a way to adjust the LIDAR surface to the actual field survey data. I can not just adjust he TIN surface datum up or down because the difference is not a single algebraic mean.

Posted

The only way I know to edit the elevation of an entire surface is by a fixed amount. You could try and create a surface from the field survey data and combine the two surfaces, but I think you're in for a lot of manual editing. Try posting this in the Civil 3D & LDD forum, you may get some other ideas.

Posted

I will try the Civil 3d forum. We are contacting the company that provided the Aerial data and LIDAR to see if the can take our field "control" shots and stretch the aerial data to that for just the area we are working with

Posted

My first thought without having seen any of your data would be to create a surface from your field data, copy your lidar surface and rename it, then paste the field surface into the copied lidar surface.

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
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
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.

×
×
  • Create New...