The blog is getting mighty impersonal with all those del.icio.us posts. Maybe that can serve as a reminder for me to post more.
I have been hacking on a bunch of convenience code in python for the LTM (Land Transformation Model) which serves as the land use projection portion of my research. Basically just wrapping a bunch of ArcGIS functions that do what I need done and then some file manipulation and config file writing before I launch code written by our postdoc. Going to try and do some time projections for all of the state of Indiana and then go back to my Muskegon study area with the new tools to re-run the model up there. It should make things run much more smoothly.
Here is a quick and dirty ArcGIS geoprocessing server. I mostly did this so that I can call ArcGIS routines from scripts on my linux box across a cluster of ArcGIS servers.
It is not without caveats, mostly security caveats. I work in a firewalled environment and would not recommend exposing the entire arcgisscripting geoprocessing object in a non-firewalled environment, without adding some security. With the client code I am able to write scripts that work on either Win32 or Linux with the same code.
Additionally, you will need to refer to files and directories in your scripts as they would appear to the server instance (with its windows permissions). As ArcGIS scripting routines do not directly allow the passing of GIS data to them, you will have to point to them on the server’s filesystem, geodatabase or remote ArcSDE server as you would locally on the server.
Continue reading ‘Quick and dirty GIS Server’
Stumbled upon geopy while looking through a fantastic list of OSS and Linux GIS tools.
Geopy lets me code a geocoder in 6 lines of python using the google maps API.
Continue reading ‘geopy’
Warning, esoteric GIS related post follows.
I often like to be able to generate a quick histogram of an ASCII raster file that I use for some of my models. I can do this inside of ArcGIS on a GRID file, but I like to be able to do this directly on an ASCII sometimes. Python to the rescue…
Continue reading ‘Histogram of an ASCII Raster’
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