[Xastir-checkins] CVS: xastir README.MAPS,1.28,1.29

[Curt M. <we...@us...>]

Update of /cvsroot/xastir/xastir
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv2410

Modified Files:
	README.MAPS 
Log Message:
More good info from Tom Russo, KM5VY.


Index: README.MAPS
===================================================================
RCS file: /cvsroot/xastir/xastir/README.MAPS,v
retrieving revision 1.28
retrieving revision 1.29
diff -C2 -d -r1.28 -r1.29
*** README.MAPS	23 Feb 2004 22:52:19 -0000	1.28
--- README.MAPS	24 Feb 2004 17:28:38 -0000	1.29
***************
*** 336,339 ****
--- 336,359 ----
            <http://www.swcp.com/~russo/shape_web/>"
  
+       Another good note from Tom Russo, KM5VY on this topic:
+ 
+       "...I contacted Frank Warmerdam about the datum conversion issue in
+       shpproj and offered shpcs2cs back to him (since he wrote 99% of it
+       anyway).  He said that ogr2ogr is capable of doing datum conversions as
+       well as coordinate system conversions.  I haven't looked into it, as it
+       looks like it'll take a little more work -- you have to know either the
+       EPSG number or the "Well Known Transformation" (WKT) parameters --- these
+       are the sort that are in .prj files other than the junk that shpproj
+       produces, but they have a lot of detail and I can't construct them in my
+       head as quickly as "+proj=utm +datum=NAD27 +zone=13".  Still, it is more
+       powerful as it can convert between just about anything that OGR can read,
+       in any projection (as long as the projection info's in the input layer),
+       and output any other OGR format in any other projection (as long as you
+       can specify that projection somehow).
+ 
+       That's a long winded way of saying "You can also use ogr2ogr.  See the
+       gdal distribution for more details."  didididit didit."
+ 
+ 
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