Jerl, I'm afraid gdal_rasterize can't do the labelling. You will need a specialized renderer for that. I'm not familiar with any of the desktop applications that do this. Perhaps, qgis has a plugin.
On Tue, May 17, 2011 at 1:30 AM, Jerl Simpson <jsimp...@wxtrends.com> wrote: > I already have the resultant image, it looks great. Just drawing > lines on a map. I'm using a blank image so I can more clearly see > what's going on. It's just a black and white image, and that's all I > want. > I'm trying to get the contour labeled, so I know which one I'm > viewing. So on the 1000 contour, I should see 1000 on the line > somewhere, and if it's a 547 contour, I should see 547 on the line > somewhere. > > Is that possible? > > Thanks, > > Jerl > > On Mon, May 16, 2011 at 2:41 PM, Chaitanya kumar CH > <chaitanya...@gmail.com> wrote: > > Jerl, > > > > The contour attribute and the Z values are same here. Just one of them is > > enough. > > > > With the Z values near the magnitude of 1000, the burn value of 255 is > not > > going to make much of a difference. Use it if you want to offset any > > negative Z values. > > > > You should mention contour.shp instead of just 'contour' for > > <src_datasource>. > > > > Make sure BLANK.tif doesn't have different extents/projection. > > > > Your final image will have a data type of Float64. You may have to run > some > > contrast stretching operations on it. > > > > On Tue, May 17, 2011 at 12:04 AM, Jerl Simpson <jsimp...@wxtrends.com> > > wrote: > >> > >> Hi guys and gals: > >> > >> I have something that's evading me. I have a basic ESRI Shape file > >> (created using gdal_contour) that I run through gdal_rasterize to > >> generate very nice looking contour map. But I want the value of the > >> contour in there. > >> > >> I've been trying different things with the -a option, but I can't get > >> it to work out. > >> Here's the latest thing I've tried for gdal_rasterize: > >> > >> gdal_rasterize -a contour -3d -b 1 -b 2 -b 3 -b 4 -burn 255 -burn 255 > >> -burn 255 -burn 255 -burn 255 -l contour contour BLANK.tif > >> > >> I put an extra burn value in there (have also tried with out) to see > >> if maybe it was just going in as 0. BLANK.tif is just a black image. > >> I'm sure I'm missing something simple, just can't see it. I thought > >> the -a would burn the value of "contour" into the raster. > >> > >> Thanks for any guidance!! > >> > >> Here's the data from my shapefile: > >> > >> INFO: Open of `contour/' > >> using driver `ESRI Shapefile' successful. > >> > >> Layer name: contour > >> Geometry: 3D Line String > >> Feature Count: 157 > >> Extent: (-0.500000, -89.830132) - (359.500000, 89.144137) > >> Layer SRS WKT: > >> GEOGCS["GCS_WGS_1984", > >> DATUM["WGS_1984", > >> SPHEROID["WGS_1984",6378137,298.257223563]], > >> PRIMEM["Greenwich",0], > >> UNIT["Degree",0.017453292519943295]] > >> ID: Integer (8.0) > >> contour: Real (12.3) > >> OGRFeature(contour):0 > >> ID (Integer) = 0 > >> contour (Real) = 1000.000 > >> LINESTRING (87.765060240963862 80.0 1000,..... > >> _______________________________________________ > >> gdal-dev mailing list > >> gdal-dev@lists.osgeo.org > >> http://lists.osgeo.org/mailman/listinfo/gdal-dev > > > > > > > > -- > > Best regards, > > Chaitanya kumar CH. > > /tʃaɪθənjə/ /kʊmɑr/ > > +91-9494447584 > > 17.2416N 80.1426E > > > > > > -- > This communication is privileged and may contain confidential > information. It's intended only for the use of the person or entity > named above. If you are not the intended recipient, do not distribute > or copy this communication. If you have received this communication in > error, please notify the sender immediately and return the original to > the email address above. © Copyright 2011 Weather Trends > International, Inc. > -- Best regards, Chaitanya kumar CH. /tʃaɪθənjə/ /kʊmɑr/ +91-9494447584 17.2416N 80.1426E
_______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev