On 4-Jul-08, at 2:40 AM, Kjell Are Refsvik wrote:
- they will be your best friends soon.
I am not completely sure how these two specific programs from the
gdal package relates to the challenge of outputting a png from 2
shapefiles (map and legend).
ogrinfo can be used to give a report on the type of coordinates being
used in your shapefile. You can 'cd' into the directory of your
shapefiles and then type:
ogrinfo yourshapefilename.shp -so -al
This should give you a short report. When asking for help you can
include this report and others will see more information about your
dataset without having to download it.
gdalinfo operates a similar way but for images and rasters. This may
not apply to you at the moment.
You can read more about these tools and more in chapter 3 of my book:
http://oreilly.com/catalog/9780596008659/
Fortunately some of these examples are included in the free online
chapter at http://oreilly.com/catalog/webmapping/chapter/ch03.pdf !
(around book page 30)
Hope this helps. Enjoy,
Tyler
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