Hi, There are lots of examples out there, many of them in blog postings. A couple come to mind:
http://www.perrygeo.net/wordpress/ http://casoilresource.lawr.ucdavis.edu/drupal/node/288 http://casoilresource.lawr.ucdavis.edu/drupal/node/610 Good luck! Dylan On Thu, Nov 26, 2009 at 9:02 AM, Sunburned Surveyor <sunburned.surve...@gmail.com> wrote: > Ragi Burhum and I decided it would be good if the California Chapter > of the OSGeo could get together to work on a simple open source GIS > project. (California is the home to the Silicon Valley, after all.) > After kicking around several ideas for projects, we decided to work on > a set of geoprocessing pipes implemented in Python. I am not an > experienced Python programmer, or very familiar with GDAL/OGR. But I'm > ready to learn Python, and Ragi has worked with GDAL/OGR in C++. > > I'm trying to start work on my first pipe for our project. The input > of this pipe will be a set of simple features represented by point > geometries and an elevation grid/surface. The output of the pipe will > be a modified set of simple features. The point geometries of these > modified simple features will have an elevation based on the points > horizontal location "over" the elevation grid. > > Here are my questions: > > Is there a OGR programming construct to represent a simple feature? If > there is, can you tell me where to look for the Python files that > would represent these simple features? Is there any example Python > code that will show me how to obtain simple features from an ESRI > Shapefile? > > I also need to know if GDAL has programming constructs to work with > elevation grids. If it does, where do I look for those Python files? > > I realize that GDAL/OGR are written in C++ and not Python. If there > isn't a place to easiliy locate the Python files then I will work with > Ragi to build the Python files from the C++ source using SWIG > (something I know absolutely nothing about). > > I know everyone is busy. I don't want anyone to write my code for me, > but any suggestions on where I start looking in the source code so I > can learn how to do what I need with the library is appreciated. > > I will make a commitment to make documentation/Python code for working > with GDAL/ODR that results from our project available to everyone that > is interested. > > Thanks for the help. Please remember I am a Java programmer, which > means I will require extra patience. Ragi and I wanted to get some > working code before we announce our project to the OSGeo community, so > I appreciate your discretion while we get things started. We don't > want to be dismissed as another idea that is all talk and no > substance. :] > > Landon > _______________________________________________ > gdal-dev mailing list > gdal-dev@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/gdal-dev > _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
