I have a baseline scan with XYZRGB within a csv file. I also have a set of polygons that mark the boundaries between different zones.
Is it possible to use Pix4d to calculate a difference in volume between the baseline scan and any new scans I do with our drone, but calculated within each polygon boundary?
I assume we can import the csv file and create a 3d mesh, which would be one of the steps.
I found these 2 topics which can get the difference between 2 scans, but I can’t see anything about a polygon boundary.
https://support.pix4d.com/hc/en-us/articles/202559189-Volume-difference-of-an-area-surveyed-over-different-time-periods#gsc.tab=0
https://community.pix4d.com/t/4393-Volume-Difference-of-an-Area-Surveyed-Over-Different-Time-Periods#gsc.tab=0
I think the closest to what you describe would be to:
- Create several volume base surfaces in your initial scan (has to be a created in Pix4D software) to cover each polygon of interest.
- Export the base surfaces: https://support.pix4d.com/hc/en-us/articles/211245943
- Import the base surfaces in projects you want to mesure the same area: https://support.pix4d.com/hc/en-us/articles/204836569
- Compute the difference for those projects.
Is this what you were looking for?
Here is an article about inputs for Pix4D software: https://support.pix4d.com/hc/en-us/articles/202558539-Input-Files#label6