RVT for QGIS¶

The RVT QGIS plugin uses the core RVT Python package. The plugin interface offers a user-friendly way to access all the functionality of the Python package.

Setting up¶

Open a DEM file to be visualized.
Select Raster → Relief Visualization Toolbox or the RVT icon in the toolbar.

Computing visualizations¶

Select the DEM in List of currently selected files:, then select the Visualizations tab. In the Visualization tab select preferred visualizations and set their parameters (options).
Select Start to calculate the visualizations.

The visualizations are stored as GeoTIFFs in the same folder as the input file, or to a custom location (if the Save to raster location check box is unchecked, and the Save to directory is set).

Visualizations are also added to the main window of QGIS if the Add to QGIS check box is checked. If the Overwrite check box is checked, the program overwrites any existing visualization files.

Using the blender¶

Chose a DEM in List of currently selected files:, then choose the Blender tab. In the Blender tab select your Blend combination: or build your own in layers.

You can add your own custom combination to the list. Write a name in the Combination name text field and select Add. To remove it, just select it in the (Blend combination list) and select Remove.

You can also save a specific combination to a JSON file (if you want to share it, for example). To do this, input its name (in the Combination name text field) and select Save ... (then select the location and name of the file).

Saved JSON combinations can be added by selecting the Load ... button (select file). You can change the parameters for each visualization method in the blend combination in the Visualizations tab.

If you check the Use preset values for terrain type it applies the selected terrain type settings (this changes the normalization min and max, and visualizations parameters). If you check Save visualizations, all the visualization parameters used in the blender combination will be saved.

Select Blend images to calculate the blended (fused, combined) image.

The blended image is stored as a GeoTIFF in the same folder as the input file or to a custom location (if Save to raster location check box is unchecked and a directory is set in the text field next to it).

Using the processing functions¶

Go to the Processing Toolbox → Relief visualization toolbox to access all the RVT visualization functions.