[Proj] Understanding deformation model usage
stevejking
stevejking at talktalk.net
Tue Feb 27 02:43:09 EST 2018
Kristian,
I think I follow your (in development) user guide example here. Very useful
thanks.
https://kbevers.github.io/usage/operations/transformations/deformation.html
But if the velocity shifts are tied to Cartesian coordinates, surely this is
only the average velocities at the coordinate at a moment in time. There is
no parameter to specify a *grids_epoch.
Eg. What to do If my grid is Cartesian coordinates and velocities at epoch
2010.0, t_obs=2000.0 and t_epoch=2017.0?
Perhaps this is achieved by ensuring in individual steps that t_obs or
t_epoch always equals *grids_epoch ? I think that’s what your example does?
*grids_epoch is a made up function to illustrate.
Steve
--
Sent from: http://osgeo-org.1560.x6.nabble.com/PROJ-4-f3840930.html
More information about the Proj
mailing list