GCP Interface projection

WebODM
#1

I have been experimenting with the GCP interface in WebODM, and I think it is something we would like to use for our work. However, the way we collect our location data for GCPs is with a Trimble Nomad running ODK collect; the short story is that we get our GCP location as Lat/Long rather than UTM. I know the projection is defined on the first line of the GCP file, like so:

+proj=utm +zone=16 +north +ellps=WGS84 +datum=WGS84 +units=m +no_defs

What I would like to know is if there are options other than “utm” for this.
Thanks for your help!

2 Likes
#2

In theory, any fully-qualified PROJ4 string/CRS should be acceptable for usage.

What EPSG are you using? If you cross-check it somewhere like epsg.io and it has a PROJ4 string, then it should be just fine to use.

#3

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