Is version 10 TIN different?

Question

Is there a difference in TINs created by version 10? I am trying to use a TIN I created using version 10 (ArcToolbox, 3D Analyst, TIN Management, Create TIN) in ArcView 3.3 in order to run GeoRAS. Version 3.3 cannot recognize any of the TINs I created with version 10 even though I can use TINs created with version 8.x and 9.x. Any ideas what is different and how I can make a compatable TIN?

Thanks!!!!

WillGustafson_home · Answer

Oddly enough I just figured this out and was coming back to let others know it was a setting in environments. 😄

thanks

BondHarper · Answer

Thanks!!! That is a huge help!

Khalid · Answer

Good day folks,

Yes, the version 10 TIN is different from the pre-10 counterpart. The key changes in the current adoptation of the TIN are:

- Transition to storing spatial reference information using ArcGIS Projection Engine. Pre-10 TIN used the ArcInfo Workstation spatial reference format, which did not support a number of projections.

- Support for Delaunay constrained triangulation.

- Support for tagging edges.

The changes required to implement these modifications meant that the version 10 TIN could not achieve backward compatibility. However, you can convert your version 10 TIN to a pre-10 TIN through the Copy TIN tool, or by specifying it in Environment Settings > Default TIN Storage Version (see screenshots). Once the Environment Setting has been defined, any geoprocessing tool that outputs a TIN would default to the specified version.

Regards,
Khalid

TinEnvironmentSetting.jpg

CopyTin.jpg