Ole, You create contours directly into KML format using the -f option.
On Wed, Jul 7, 2010 at 2:42 PM, Ole Nielsen <[email protected]> wrote: > Thank you very much for your reply. I misunderstood the –a option. It > works beautifully and our SHP as well as KML files now have each contour > clearly labelled with its value. > > Here’s an example of a command that does the trick. > > > > gdal_contour -a Thickness[cm] -fl 1.000000 2.000000 5.000000 50.000000 > 100.000000 <tiffile> <shpfile> > > > > We then convert to kml using ogr2ogr > > > > Thanks again > > Ole > > > > Dr Ole Nielsen > > Numerical Modeller > > Australia-Indonesia Facility for Disaster Reduction > > Mobile: +62 811 820 4637 | Phone: +62 21 398 30088 x1007 | Fax: +62 21 398 > 30068 > > > > [image: cid:[email protected]] > > > > > > > > > > > > > > *From:* Chaitanya kumar CH [mailto:[email protected]] > *Sent:* Wednesday, 7 July 2010 3:27 PM > *To:* Ole Nielsen > *Cc:* [email protected]; [email protected]; Kristy Van Putten > *Subject:* Re: [gdal-dev] Which contour is which? > > > > Ole, > > You can specify a field in the contour features using the '-a' option. You > can also use the '-3d' option to include the elevation value in the z value > at every vertex. (http://www.gdal.org/gdal_contour.html) > > On Wed, Jul 7, 2010 at 1:26 PM, Ole Nielsen <[email protected]> wrote: > > Dear all > > > > We are using gdal_contour to generate shape files. They look good and > appear to be correct, but we need to label them with the value they > represent. > > > > However, no such information appears to be available in the shape files. We > thought we could work with the ID attribute which is the only information > available in the shapefiles generated by gdal_contour, but that does not > generally reflect the order of the contour lines either. > > > > How is it possible to determine which contour line corresponds to a > particular level? > > > > Best regards > > Ole > > > > > > > > Dr Ole Nielsen > > Numerical Modeller > > Australia-Indonesia Facility for Disaster Reduction > > Mobile: +62 811 820 4637 | Phone: +62 21 398 30088 x1007 | Fax: +62 21 398 > 30068 > > > > [image: cid:[email protected]] > > > > > > > _______________________________________________ > gdal-dev mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/gdal-dev > > > > > -- > Best regards, > Chaitanya kumar CH. > /tʃaɪθənjə/ /kʊmɑr/ > +91-9494447584 > 17.2416N 80.1426E > -- Best regards, Chaitanya kumar CH. /tʃaɪθənjə/ /kʊmɑr/ +91-9494447584 17.2416N 80.1426E
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