OK, so I got the conversion working, probably a newbie mistake, as the solution
was mainly to switch datum, i.e. change the command from
ogr2ogr "KML" LINE.kml LINE.shp
to
ogr2ogr
-s_srs EPSG:27700 -t_srs WGS84 -f "KML" LINE.kml LINE.shp
However, before realising that, I managed to compile and install gdal 1.7.
Using gdal 1.7 did not crash reading the file using the initial command line
but gave a warning about coordinates exceeding limits, and from this I
eventually realised my error! Thus, I am not sure whether gdal 1.5 would still
work using the correct conversion (probably).
The next problem is to display the kml file on a map; there are about 500
polylines ranging from a few to hundreds of points each. Sending this to google
maps (by using "My Maps"->"Import") displays the data over several tabs, which
is undesirable. Any ideas on how to display all the data simultaneously?
Thanks,
Mattias
Subject: Re: [gdal-dev] ogr2ogr .SHP to .KML conversion problem
From: [email protected]
Date: Tue, 2 Feb 2010 18:06:28 -0500
CC: [email protected]
To: [email protected]
Use gdal_translate --version
Since you told me that you are using GDAL version 1.5.0 from December 2007, I
suggest that you upgrade to GDAL 1.7.0 from January 2010. Greg
On Feb 2, 2010, at 4:01 PM, Mattias Carlsson wrote:Hi,
I am trying to learn how to use ogr2ogr to convert a shapefile to kml, but fail
to do so and cannot understand whether I am at all on the right track or
completely lost (very much beginner in GIS). I would like to convert either, or
all, of the files on
<http://www.nationalgrid.com/uk/LandandDevelopment/DDC/GasElectricNW/undergroundcables/shape/>
to .kml and try using
>ogr2ogr -f "KML" LINE.kml LINE.shp
but get a buffer overflow (I can send a backtrace if this would help):
>*** buffer overflow detected ***: ogr2ogr terminated
(btw, I am using Ubuntu 9.10)
Apologies if this is the wrong forum or totally basic, but after many
frustrations I am getting desperate and, please, please, guide me in the right
direction...
Thanks!
\Mattias
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