I am trying to input GCP's into my model of a power plant that is on its own coordinate system, my surveyor gives me units coordinates that are is (US FEET). ContextCapture does not offer an option for local coordinate system in these units, only offers "meters" and "arbitrary". Does anyone know the workflow to perform this in US FEET? And why would anybody use a meaningless arbitrary unit?
To define your own local system then use constraints by setting origin and axis direction. Otherwise you would need to define custom coordinate system.
Arbitrary is used when there is no measurements as proportions in model are correct but scale is not.
thnaks Oto, the problem is the origin (0,0,0) is too far away from the model, so ContectCapture does not have the ability to put custom coordinate system in US Feet?
Shouldn't be a problem at all.
Try to create a new local coordinate system with value - "Local:unit=Survey Feet"
. Use metric one as template
Yes, that worked, so the workflow:
AT: convert US FEET GCP's to meters (multiply by 0.3048) than add GCP's to model, than perform AT
RECONSTRUCTION: Make sure chnage units to US Feet than resonstruct
How did you manage to change units at reconstruction and why it didn't work for GCPs?