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On 04-06-2014 13:33, Hernán De Angelis wrote:
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<div>One option is exporting to NetCDF format and running GMT's
grd2xy (<a moz-do-not-send="true"
href="http://gmt.soest.hawaii.edu/doc/latest/grd2xyz.html">http://gmt.soest.hawaii.edu/doc/latest/grd2xyz.html</a>).
If the raster is big this will be slow though.<br>
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If GMT was built with the GDAL link (nearly all the GMT5's and many
of the GMT4's) you don't need to convert the grid format, just use
it as is. And why you say it's slow (apart from the time taken to
same a potentially big ascii file on disk)?<br>
<br>
Joaquim<br>
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H.<br>
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<div class="gmail_quote">On Wed, Jun 4, 2014 at 1:00 PM, Jukka
Rahkonen <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:jukka.rahkonen@mmmtike.fi" target="_blank">jukka.rahkonen@mmmtike.fi</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
Is there a tool for converting rasters into vector grids,
either points or<br>
polygons? I know gdal_polygonize but what I am after would
just create a<br>
regular grid of points or polygons and write raster values
into attributes.<br>
I can do that with SEXTANTE vectorization tools but I would
rather use GDAL.<br>
<br>
-Jukka Rahkonen-<br>
<br>
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-- <br>
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<div>Hernán De Angelis<br>
<br>
Glaciers & Remote Sensing |
Sustainability & Environmental Science<br>
<a moz-do-not-send="true"
href="http://talesoficeandstone.blogspot.se/"
target="_blank">http://talesoficeandstone.blogspot.se/</a>
| <a moz-do-not-send="true"
href="http://talesoficeandstone.blogspot.se/"
target="_blank">http://talesofafiniteplanet.blogspot.se/</a><br>
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