[GRASS-SVN] r33976 - grass-addons/raster/r.sun_horizon/r.sun2

[svn_grass at osgeo.org]

Author: neteler
Date: 2008-10-22 09:40:54 -0400 (Wed, 22 Oct 2008)
New Revision: 33976

Modified:
   grass-addons/raster/r.sun_horizon/r.sun2/README
   grass-addons/raster/r.sun_horizon/r.sun2/TODO
Log:
comments cleaned up

Modified: grass-addons/raster/r.sun_horizon/r.sun2/README
===================================================================
--- grass-addons/raster/r.sun_horizon/r.sun2/README	2008-10-22 13:38:04 UTC (rev 33975)
+++ grass-addons/raster/r.sun_horizon/r.sun2/README	2008-10-22 13:40:54 UTC (rev 33976)
@@ -1,4 +1,10 @@
-Thomas Huld:
+From Thomas.Huld jrc.it Thu Jul 26 11:01:44 2007
+To: Markus Neteler <neteler itc.it>
+CC: Jaro Hofierka <hofierka geomodel.sk>, "marcel.suri jrc.it"
+        <marcel.suri jrc.it>, Tomas Cebecauer <tomas.cebecauer jrc.it>
+Date: Thu, 26 Jul 2007 11:01:44 +0200
+Subject: Re: r.horizon source code
+Lines: 1533
 
 I'm sending the r.sun sources to you here, even though the description is not 
 yet up to date. I think it works OK now, though I haven't tried all possible 

Modified: grass-addons/raster/r.sun_horizon/r.sun2/TODO
===================================================================
--- grass-addons/raster/r.sun_horizon/r.sun2/TODO	2008-10-22 13:38:04 UTC (rev 33975)
+++ grass-addons/raster/r.sun_horizon/r.sun2/TODO	2008-10-22 13:40:54 UTC (rev 33976)
@@ -1,82 +1,3 @@
-From Thomas.Huld jrc.it Thu Jul 26 11:01:44 2007
-To: Markus Neteler <neteler itc.it>
-CC: Jaro Hofierka <hofierka geomodel.sk>, "marcel.suri jrc.it"
-	<marcel.suri jrc.it>, Tomas Cebecauer <tomas.cebecauer jrc.it>
-Date: Thu, 26 Jul 2007 11:01:44 +0200
-Subject: Re: r.horizon source code
-Lines: 1533
-
-I'm sending the r.sun sources to you here, even though the description is not
-yet up to date. I think it works OK now, though I haven't tried all possible
-combinations of options. For instance, I haven't ever used the incidence
-angle or insolation time outputs. There's no reason why they should have
-stopped working but there are always changes that break something unexpected.
-
-The main changes  are:
-
-- possibility to read in horizon rasters to use with the shadow calculation.
-
-- Calculation of the shadowing effect should now also work in lat/lon projection.
-
-- There was a bug in r.sun whereby the shadowing effect was calculated wrong
-when the left-right and up-down directions in the projection are different
-from east-west and north-south, as is the case in the projection we use
-(Lambert Azimuthal) when moving away from the point of origin. This has been
-fixed now though only checked with Lambert Azimuthal.
-
-- I'm not sure if this went in already in a previous version, but the
-algorithm now also takes into account the curvature of the earth when
-calculating shadows.
-
-- new output possibility: glob_rad, which is the sum of the three radiation
-components
-
-- new input parameter: <i>civiltime</i>. When this parameter is given, the
-single time calculation will calculate the irradiance at the *same* time for
-the entire raster instead of using the local solar time. The value of
-<i>civiltime</i> is the timezone, relative to GMT. (+1 for central Europe)
-
-- new input parameter <i>numpartitions</i> No change in the calculation
-methods, but the program will read the input rasters and do the calculations
-in a number of chunks, instead of reading in everything at the start. Output
-is still only at the very end. This is only to save memory. It will not work
-if you try to calculate shadows without the horizon information, and the
-program will tell you so.
-
-- I reorganized the source code quite a lot. In particular, I spun off several
-functions into a separate source file called rsunlib.c. I also organized many
-of the global variables into <i>struct</i>'s for an easier overview. I did
-this because we work here with several derivatives of r.sun:
-
-        * r.sunyear which calculates the optimum inclination angle for maximum
-insolation
-        * r.pv which calculates the PV output taking into account also temperature
-effects
-        * r.sun.2axis which is r.sun for a moving plane, whose normal always points
-to the sun (two-axis tracking solar energy systems).
-
-Splitting the source code made it easier to reuse bits for these r.sun
-derivatives. I haven't updated the Makefile to account for these changes yet.
-Look at the little script  "compdebug" in the source directory.
-
-
-There may be other changes that I've forgotten about but nothing dramatic.
-
-Have fun!
-
-
-Thomas
-
---
---------------------------------------------------
-Thomas Huld
-Joint Research Centre of the European Commission
-T.P. 450
-I-21020 Ispra, Italy
-phone: +39 0332785273
-e-mail: Thomas.Huld at jrc.it
---------------------------------------------------
-
 ######################################################################
 Probably the sun position calculation shouldbe replaced
 with