For a measurement comparison in reference to your existing survey dataset, you can choose to add your data as a Design Surface or KML Overlay.


Supported file types can be automatically converted for instant viewing as a Layer in the Viewer. The supported file types are:

  • DXF
  • KML
  • KMZ
  • GeoJSON
  • CZML 

Once uploaded, the file appears in the Layers section and can be toggled on and off.  

To upload a file, select Layers → Import a Layer

Design surfaces are elevation grid data in geoTIFF format converted from a .DWG /.DXF file. This is normally generated from contours or TIN surfaces. They are treated as a separate dataset in a site.

•  How it works
When uploaded into the platform, elevation values can be viewed by enabling the Contour/Heat Map. 

This type of data overlay allows you to make measurements in comparison to other data. For a more detailed guide on how to use the Volume Comparison tool to compare a survey dataset to a Design Surface, refer here. 

•  How to create a design surface
This article provides a step-by-step guide on how to convert any .DWG/.DXF file into a geoTIFF format using QGIS. 

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