[gdal-dev] Labeling rasters
jsimpson at wxtrends.com
Mon May 16 14:34:21 EDT 2011
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:
ID: Integer (8.0)
contour: Real (12.3)
ID (Integer) = 0
contour (Real) = 1000.000
LINESTRING (87.765060240963862 80.0 1000,.....
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