I will look into Shapely.<br><br>George<br><br><div class="gmail_quote">On Fri, Apr 9, 2010 at 3:30 PM, Landon Blake <span dir="ltr"><<a href="mailto:lblake@ksninc.com">lblake@ksninc.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Jean-Denis,<br>
<br>
I skimmed the web site and documentation for Shapely. It looks like a handy lib and maybe even easier than OGR. :]<br>
<div class="im"><br>
Landon<br>
Office Phone Number: (209) 946-0268<br>
Cell Phone Number: (209) 992-0658<br>
<br>
-----Original Message-----<br>
</div><div class="im">From: Jean-Denis Giguere [mailto:<a href="mailto:jdenisgiguere@gmail.com">jdenisgiguere@gmail.com</a>]<br>
Sent: Thursday, April 08, 2010 7:42 PM<br>
To: Landon Blake<br>
</div><div class="im">Cc: Carlos Gabriel Asato; <a href="mailto:carto@lists.osgeo.org">carto@lists.osgeo.org</a>; <a href="mailto:sean.gillies@gmail.com">sean.gillies@gmail.com</a><br>
Subject: Re: [Carto] Sample Map Rendering Input File<br>
<br>
</div><div><div></div><div class="h5">Greetings!<br>
<br>
I'm just yet another new suscriber of carto... ;-) I'm not a Python<br>
GIS guru, but I have a lot of interest on this side. You will find my<br>
2¢ below.<br>
<br>
2010/4/8 Landon Blake <<a href="mailto:lblake@ksninc.com">lblake@ksninc.com</a>>:<br>
> It sounds like Python is the winner.<br>
<br>
Nice! I think we won't be disappointed by this choice.<br>
<br>
I poke Sean Gillies, which may be interested by this project. I'm sure<br>
he could give us very valuable advices.<br>
<br>
><br>
> Carlos: Do you have experience with Python? If you do, can you help with the<br>
> following questions:<br>
><br>
><br>
><br>
> (1) What is the best Python library to use for parsing XML?<br>
<br>
There ara many options, do we need a full featured libraries with<br>
extended functions or a more simple/lightweight library?<br>
Do we want to limit dependencies using built-in functions as much as possible?<br>
<br>
><br>
> (2) Is there an existing Python library for parsing WKT?<br>
<br>
shapely (<a href="http://trac.gispython.org/lab/wiki/Shapely" target="_blank">http://trac.gispython.org/lab/wiki/Shapely</a> ) . It does much<br>
more than reading WKT.<br>
<br>
><br>
> (3) I believe we can use OGR for reading ESRI Shapefiles. Is this what<br>
> you would recommend?<br>
><br>
<br>
OGR support would be interesting because you get support for many<br>
formats at once.<br>
<br>
> (4) Is there an existing library that can take some sort of vector<br>
> geometries and convert them to rasters? (Something like the Java 2D graphics<br>
> library?)<br>
<br>
shapely have some related features. It can be use with matplotlib<br>
which may be (or not) interesting for this project.<br>
<br>
><br>
><br>
><br>
> Now that I think about it, using a vector format like EPS or SVG might be<br>
> easier than raster for the first output of the sample rendering engine.<br>
<br>
matplotlib supports many output formats, this may be helpful for<br>
prototyping and maybe more.<br>
<br>
<br>
Best regards,<br>
<br>
<br>
Jean-Denis<br>
<br>
<br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>George R. C. Silva<br><br>Desenvolvimento em GIS<br><a href="http://blog.geoprocessamento.net">http://blog.geoprocessamento.net</a><br>