W0024 error

PIX4Dmapper
1

Hello,

I am currently trying to import some GCPs, but I keep getting the error ‘Warning w0024: One or more GCPs lie far outside the area covered by the images. Check if the correct GCP file and coordinate system are selected’

I have checked the coordinates and these are right, as when I put them into grid reference they show up where they should. In Pix4D they are showing up off the coast of Africa.

The coordinate system could possibly be wrong, i used a trimble geo7x to take the points using GPS. i currently have the coordinate system set as WGS 84 / UTM zone 30N (EGM 96 Geoid), but i thought this was right.

Can anyone solve this problem?

2

Hi, You would need to know the correct GCP coordinate system (in which the GCPs were measured). If you do not know the GCP coordinate system, I would recommend doing some trial and error with https://epsg.io/

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