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Author Topic: Urgend question, Georef with GCP doesn`t work  (Read 4332 times)

AndreasZ

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Urgend question, Georef with GCP doesn`t work
« on: November 22, 2022, 11:45:40 AM »
Hi there,

i am trying to georef a model manual for the first time.
I was at an archeological excavation where we measured some gcp. Photos where taken by a Canon Eos 2000d
So no drone images with coordinate-stamps.
I made a csv where I gatherd my gcp coordinates in a readable way for metashape and importet it.
Before that i placed markers to the pictures which also are fitted correctly and automaticly by metashape.
But how do i get my coordinates now onto this fitted markers?
On yt I just could find videos where when you imported the gcp coordinates they would appear at the model more or less successfull regaring that the fotos already had geotags.
When i go to the menu "reference" after importing the data it looks like this without coordinates...
Hopefully someone can help me. Thanks in advance.

Alexey Pasumansky

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Re: Urgend question, Georef with GCP doesn`t work
« Reply #1 on: November 22, 2022, 12:11:02 PM »
Hello Andreas,

Do you have the coordinates input for all three markers to the Source values tab of the Reference pane? And whether you have created at least two projections for each marker on the aligned images?

If both requirements are fulfilled, please try to press Update button on the Reference pane toolbar.
Best regards,
Alexey Pasumansky,
Agisoft LLC

AndreasZ

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Re: Urgend question, Georef with GCP doesn`t work
« Reply #2 on: November 22, 2022, 01:26:24 PM »
Hi thanks for your fast reply.

I made two screenshots showing my data layout.
And the fotos which are marked. I removed now point 1, this was an old one.
But 2 and 3 should have coordinates...
After importing the data you see on my screenshot 1 it looks like in screenshot 2 without any xyz info attached to the referencemenu.

best regards.

Alexey Pasumansky

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Re: Urgend question, Georef with GCP doesn`t work
« Reply #3 on: November 22, 2022, 01:57:27 PM »
Hello Andreas,

You need to have at least three points with known coordinates to set up the coordinate system and reference the model.

If you can create additional marker with the known coordinates, you need to check on the markers in the Reference pane and press Update button on the pane's toolbar.
Best regards,
Alexey Pasumansky,
Agisoft LLC