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| GeoCommunity Mailing List |
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| Subject: | [gislist] Hidrography data source |
| Date: |
07/26/2006 08:55:00 AM |
| From: |
Dan CRACIUN |
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Hi all,
I'm trying to build a 1:5.000.000 series of maps with global or
near-global coverage with the following layers:
-elevation
-hydrography
-political borders
-place names
-transportation (roads)
The maps don't need to be very accurate, so I'll use Vmap0 for place
names and political borders and I generated the elevation (hillshade)
from SRTM30 data.
For rivers I'm looking for line features with a non null name attribute
(so I can easily merge the rivers into one piece, to be able to display
them differently, depending on the map) and a hierarchy.
Vmap would be OK, but I found no way to automatically reduce the number
of features (from ~200.000 to ~10.000) and the same river is made from
several segments, some named, some unknown.
Anyone knows another source of hydrography data? With less features but
"consolidated".
Thank you!
Best regards,
Dan Craciun
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