Input File
Select a raster for which you want to calculate slope, aspect or curvature.
Select Fields, Bands
If the input raster has multiple fields and bands, the Select Fields, Bands option allows you to choose either All Fields All Bands or a particular field for the processing.
Select a specific field from the drop-down list, you can then choose the desired bands from that field. You can not select bands from different fields, because only one field can be selected at a time. Click the radio button against the field or check-box against the band that you want to select. By default All Fields All Bands option is selected for you.
Surface Analysis Option
Surface Analysis Option section contains the following:
- Compute - Select Slope, Aspect, or Curvature from the Create drop-down list. Depending on the selection, you will be able to create either a slope grid, an aspect grid, or a curvature grid.
- Slope Units - Set the slope unit in degree or percentage. This drop-down list is available when Slope is selected.
- Curvature Type - Set the curvature type as Surface, Draw Profile, or Plan. This drop-down list is only available when Curvature is selected.
- Vertical Scale Factor - Set the scale of the cell values in the grid so they are in the same units as the horizontal distance units.
Output File
Specify a name, location and format for the output raster that you are creating. In the
Output File box enter the name you want to specify for
your output file. Click 
to browse to the location in
your computer to save the output file. You can also select the required output file
format.
Click Output Settings to specify the following. The values in Output Settings are controlled by the Raster Preferences dialog; however, you can override those settings here.
Display Output File - Select the check-box, if you want to open the output file in the Map window on completion of the operation. You can configure to make this the default behavior from the Raster Preferences dialog.
If the output file format is an MRR or a TIFF, additional options appear. The available options are listed below.
- Compression Settings
- Data Balanced
- Data Speed
- Data Space
- Advanced
The Data Balanced option allows you to achieve a balance between speed of operation and file size. The system selects the best combination of speed and space for you. With the other two options Data Speed and Data Space, you can choose between speed of operation and storage space. Choose Advanced option to set the advanced compression settings such as compression method, level, and encoding type. For details on the Advanced option, see Compression Settings.
- Compression- Select a suitable compression method and level for the data. For more information on compression, see Compression methods.
- Encoding Type - Select a suitable Encoding Type for the data from the list. It enables you to compress the data when saving a raster to MRR format. Encoding Type is enabled only when the raster field type is Continuous and the compression method is lossless such as ZIP, LZMA or LZ4. The drop-down list contains the following:
- None - No encoding.
- Previous Column Linear - Performs linear estimation of the value from previous two columns.
- Previous Column Value - Predicts the value from previous column.