, Luxembourg
From: Daniel Lee l...@isi-solutions.org
To: Christian Braun christian.br...@tudor.lu,
Cc: grass-user@lists.osgeo.org
Date: 08/08/2012 17:44
Subject:Re: [GRASS-user] r.sun and XY locations
Hi Christian,
Determining the position of the sun relative to a given
Christian wrote:
I thought that is why I can provide latitude and longitude grids as
input for the very special case of an XY location. Isn't it like that?
Hi,
r.sun was originally written with that idea in mind -to be able to run
from a non-projected simple XY coordinate system- if you fed it
On Wed, Aug 8, 2012 at 4:39 PM, Christian Braun
christian.br...@tudor.lu wrote:
Dear all,
I want to create a WPS module which is calculating solar irradiance. As WPS
architecture I have to use PyWPS which is creating a XY-location and mapsets
on the fly to process the data.
Why this? I am
Hi,
of course it does support projections, but just for a predefined location. This
means that this specific process needs input data in that predefined CRS. If
you then have clients using different CRS this would mean that either the
client has to reproject in advance or the WPS is doing
2012/8/9 christian.br...@tudor.lu
it's clear to me that r.sun needs some sort of spatial reference.
I thought that is why I can provide latitude and longitude grids as input
for the very special case of an XY location. Isn't it like that?
I've heard that before, but never used it, to be
Dear all,
I want to create a WPS module which is calculating solar irradiance. As WPS
architecture I have to use PyWPS which is creating a XY-location and mapsets on
the fly to process the data.
What is the current status of running r.sun in a XY location? On a testing
machine I got back an
Hi Christian,
Determining the position of the sun relative to a given pixel requires
knowing the pixel's latitude at the very least. That's why using r.sun in
an XY location won't work. r.sun definitely needs a geographic location to
work with - otherwise it doesn't know which way is north and
