[GRASS5] initiation of proj library in r.sun

[Markus Neteler]

On Sun, Nov 30, 2003 at 10:21:29AM +0000, Paul Kelly wrote:
> Hello Jaro
> 
> On Sat, 29 Nov 2003, Jaro Hofierka wrote:
> 
> > Hi,
> >
> > I am trying to use recent updates of r.sun under CVS version of GRAS5.3
> > (from Oct 11). I got the following error reading latitude values from
> > proj info:
> >
> > r.sun elevin=ele25 aspin=asp250 slopein=slop250 day=90 beam_rad=b1a
> > diff_rad=d1a refl_rad=r1a
> > Mode 2: integrated daily irradiation
> > Unable to initialise PROJ.4 with the following parameter list:
> >   +proj=krovakgis +a=6377397.155 +es=0.006674372231802145
> > +towgs84=653.000000,-212.000000,449.000000
> >   The error message was 'unknown projection id'
> >   ERROR: Can't get projection key values of current location
> >
> 
> "proj: krovakgis" doesn't exist any more in GRASS; you need to use
> "proj: krovak". I believe Radim made some changes to this to fix the axis
> orientation and the version in the internal GRASS PROJ is more 'correct'
> than in the remotesensing.org PROJ version.
> 
> Paul

FYI
Month ago I have submitted a "krovak" update to PROJ4, but it
was not accepted (yet?):

http://bugzilla.remotesensing.org/show_bug.cgi?id=147

The best would be to raise that issue on the PROJ4 mailing list
http://www.remotesensing.org/proj/

Interesting to know is that the Evenden version of PROJ4 (but without
datum transformation) now contains Krovak support:
http://members.bellatlantic.net/~vze2hc4d/proj4/

Markus