Strouse3910 Posted May 8, 2009 Posted May 8, 2009 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. Quote
Strouse3910 Posted May 8, 2009 Author Posted May 8, 2009 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 Quote
Strouse3910 Posted May 8, 2009 Author Posted May 8, 2009 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. Quote
lpseifert Posted May 8, 2009 Posted May 8, 2009 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. Quote
Strouse3910 Posted May 8, 2009 Author Posted May 8, 2009 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 Quote
rustysilo Posted May 8, 2009 Posted May 8, 2009 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. Quote
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