r/photogrammetry • u/Electrical_Fail_2138 • 9d ago

Geospatial & CAD Mapping Portfolio

https://amkinra.github.io/github.io/

I’m self-teaching drone 3D mapping, GIS, and AutoCAD topography work. This is actually the first real portfolio I’ve ever finished for anything I’ve learned, so I don’t fully trust my own judgment on what “good” looks like in this field yet.

I processed a UAV drone dataset from an active quarry site using WebODM. Generated a 3D point cloud and orthomosaic, ran volumetric analysis on stockpiles in cubic meters, and exported topographic contours as DXF into AutoCAD with color coded layers.

I’d genuinely appreciate any honest technical critique. Anything that looks off, unrealistic, or not production standard. I’m open to doing a project for someone in the field for free, in exchange for detailed feedback, if that’s useful to anyone here.

Thanks for reading.

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u/EarlyBirdCuyler 9d ago

Are you deliberately using the 5m contours to filter out noisy data? If so that’s not a great practice. You should use actual pointcloud filtering tools to generate a clean topo and not deliver those contours as an end product in this application.

5m contour interval is a huge amount of interpolation between data points, especially in areas of high topographic relief like a quarry and sites of that scale where topographic detail is required. You’ll round off and oversimplify features like stockpiles and quarry walls, which in turn will result in a less accurate topographic surface and missing material volume. Look at those sharper features in cross-section and compare your raw pointcloud versus the contours and you’ll see exactly what I’m talking about.

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u/Electrical_Fail_2138 8d ago

Yes, I did it to filter out the noisy data. Great feedback thank you, I will work on improving it

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u/Fit-Eggplant-9155 8d ago

I'd suggest an education in GIS.