On Apr 23, 2004, at 5:17 AM, Baveco, Hans wrote:

> I just put a small package on SqueakMap, to read and view GIS data in 
> ESRI shapefile format (the format used by ESRI's ArcView program).
> It adds some basic functionality required to improve Squeak's 
> geo-processing abilities, which are currently a bit underdeveloped 
> (Squeak could be made into a perfect platform for GIS work!).

Wow, lots of interest in using Squeak for GIS lately.

I've been hacking on a Shapefile reader of my own lately, though 
apparently with different goals than yours. I've got DBF reading 
finished, and Point shapes, but haven't implemented the other datatypes 
yet.

I've been using GRASS on OS X for my GIS work, and so far it's been 
fairly useful if not all that fun - I guess you've got to love the 
command line to really dig GRASS. I found it had some problems reading 
shapefiles, so I wrote this utility to a) check to make sure that the 
files are not corrupt, and b) convert them into GRASS ASCII files, 
which, I hope GRASS will handle without problems.

The files I'm working with are really big, so my code avoids loading 
the whole thing into memory, and since I have no need to visualize the 
data (GRASS does that just fine if it can read the file at all), I 
haven't addressed that.

I don't think it's ready to go on SqueakMap at this point, but for 
those interested, the code is attached.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: GrassKit-cwp.3.mcz
Type: application/text
Size: 4172 bytes
Desc: not available
Url : http://lists.squeakfoundation.org/pipermail/squeak-dev/attachments/20040423/a63cc89a/GrassKit-cwp.3.bin