This guide covers how to export an elevation map as a GeoTIFF and import into QGIS to render the correct digital surface model.
Exporting GeoTIFF data
You can also use this guide to correctly display the GeoTIFF files for Orthomosaic and Plant Health maps. Please review how to export these data from DroneDeploy here.
The Elevation toolbox is available to all customers subscribed to Business or Enterprise plans. These set of tools equips users with elevation data that can be exported and displayed in GIS software for further analysis.
- Select the Map you wish to import from the DroneDeploy dashboard.
- Choose Elevation as your map type, and then Export the map:
- Enter an email address to receive the exported map. Select Raw Elevation Data as the Data Type, then specify the Resolution and Map Projection. Next, select GeoTIFF for the file type and finish by clicking Export to submit your request.
- This specific example is based on the Web Mercator Projection (EPSG:3857), but you can use the Map Projection that better suits your needs.
- We recommend starting with a lower resolution file (50 cm or 20 inches/pixel) and working your way down to the highest resolution that your computer can manage.
- You can export the Elevation Map using Raw Elevation Values as the Data Type, or you can choose to export it using the RGB Image option.
Upon receipt of your exported files in your email inbox, click the download link to get a zipped file containing your data. When prompted, save the file to your computer.
Locate the downloaded files on your computer. Using the file extraction method of your choice, extract the dataset from the zipped file.
- Open QGIS and start with a new project.
- Next, click on the Add Raster Layer icon to import the Raster Elevation Map. Simply select the file path to the TIFF file and select OK.
- Under the Layers panel, right click on the newly imported layer, and select Properties.
- Navigate your cursor to the Transparency tab and uncheck the box under No data value. Finally, select OK to complete.
- Congratulations! You have now displayed your elevation map in QGIS with the correct color scale.