Slope of TIN

Question

Hi I would like to know how to create a Slope of TIN file in ArcGIS 10.1. I used to work with ArcGIS 9 and usually created a slope of  TIN file with the 3D Analyst drop down bar.

Thank you very much

Khalid · Answer

I dubbel checked to see if it is in symbology, but its not.

In order to use the slope renderer, you have to add the renderer to the Symbology tab in Layer Properties. Follow these steps:

1. Right-click the TIN layer in the table of contents and select Properties.
2. Click the Symbology tab.
3. Uncheck the active renderer (i.e. Elevation or any other TIN face renderer that is checked).
4. Click Add.
5. Select the "Face slope with graduated color ramp" option and click Add.
7. Click Dismiss.
8. Select the Color Ramp drop-down and choose your desired color ramp then click OK.

EricRice · Answer

When you used the toolbar method, the TIN input was converted to raster behind the scenes.  The Slope GP tool only accepts rasters as input.  If you want a slope raster output, first convert your TIN to raster and then just run the Slope GP tool.  The Surface Slope GP tool output is polygons, but it does let you input the TIN directly.

Best,
Eric

RikusRoos · Answer

Thank you for the reply Neil,

I dubbel checked to see if it is in symbology, but its not. with Arc 9 I selected 3D Analyst's drop down bar and selected slope - In     slope I selected the TIN file as input with output set on degree - cell size 50. with these settings I created a slope of TIN file that I  can use to create a Spatial histogram with. But it seems that I can not locate these features with Arc 10.1. The picture above is an example of a slope of TIN file.

Thank you for the help!