Hi Brent,
I can compile C++, and I'm interested. Is it possible to access the code?
Dan
On 03/02/2011 07:04 AM, Brent Fraser wrote:
Dan,
I've got some C++ code that uses GDAL (with a GEOS Union call) to
dissolve polygons based on an attribute. If you can compile C++ code on
Linux,
Brent, I'm sure a few of us are interested - sounds good! :)
Tyler
On 2011-03-02, at 8:28 AM, Dan Putler wrote:
Hi Brent,
I can compile C++, and I'm interested. Is it possible to access the code?
Dan
On 03/02/2011 07:04 AM, Brent Fraser wrote:
Dan,
I've got some C++ code that
Tyler,
Hopefully your expectations aren't too high. Here it is...
Best Regards,
Brent Fraser
On 3/2/2011 11:34 AM, Tyler Mitchell wrote:
Brent, I'm sure a few of us are interested - sounds good! :)
Tyler
On 2011-03-02, at 8:28 AM, Dan Putler wrote:
Hi Brent,
I can compile C++, and
Is there a FOSS command line tool that runs under Linux for dissolving
polygon boundaries based on a field in an attribute table that (ideally)
works directly with shapefiles? There are a number of non-cli tools out
there, but I'm working with all US counties on a county by county basis, and
On 02/03/11 08:37, Dan Putler wrote:
All,
Is there a FOSS command line tool that runs under Linux for dissolving
polygon boundaries based on a field in an attribute table that (ideally)
works directly with shapefiles? There are a number of non-cli tools out
there, but I'm working with all US
Dan,
I am using Spatialite CLI for to this job.
1. Import shapefile into Spatialite
2. Create CSV.file for the counties
3. Use Vitual table for counties.csv
4. Use ST_UNION to create a new table with dissolved boundaries
5. Dump the new spatialite table to Shapefile file
Noli
On 3/2/11, Simon
Hi Simon,
That sounds great.
I thought I remembered having read somewhere that Spatialite could
accept commands in this way but could not find a link to the webpage
when putting together my reply.
Can you provide a step by step outline of the code necessary to do this?
It is in Spatialite
Hi Paolo, Simon, and Noli,
Thanks for this. It both answered my question as to whether there was an
existing command line tool I had just overlooked (the answer is no),
and what were my choices for something that could fairly easily be
implemented if there wasn't an existing tool (the answer
Il giorno mar, 01/03/2011 alle 23.25 +0100, Paolo Corti ha scritto:
Your only option here could be to use GRASS, but as far as I know you
need to import your shapefile to the GRASS database, use a GRASS
command (v.reclass [0]) and export back to shapefile the result, so it
is not very direct.
Hi Paolo,
Your point is well taken. What seem to be the best solutions involve
reading in a shapefile and then writing out a new one. I was starting to
lean toward either PostGIS or Spatialite by using a SQL script sourced
within the relevant cli shell since my guess was that they would scale
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