-R is required in grdproject?

[seisman]

gmt grdproject @earth_relief_01d_g -JH10c -Gtmp.nc

The above command used to work in GMT 6.4, but reports an error in GMT 6.5:

grdproject [ERROR]: Option -J: If map width is given you must also specify a region with -R

but the documentation says:

Specify the region of interest. You may ask to project only a subset of the grid by specifying a smaller input w/e/s/n region [Default is the region given by the grid file].

Then, why -R is required here?

[PaulWessel]

Vague memory says we did this to fix another issue. Within last 1 year? Maybe you can find the commit and we can see what we were trying to fix.

[seisman]

it was added in #7974

[joa-quim]

But what is the meaning of passing a JH10c? It works with -Jh

[seisman]

But what is the meaning of passing a JH10c? It works with -Jh

I've never used this module, so I have no idea what -JH10c exactly does, but it's allowed and also used in the test (https://github.com/GenericMappingTools/gmt/blob/master/test/grdproject/units.sh).

[PaulWessel]

Would like to find the commit the added this - are you able to help with that @seisman ? My git skills are deteriorating... I am 95% sure we did this to fix another problem but cannot recall what that was.

[seisman]

It was added in this PR #7974.

[seisman]

Closed by #8286.