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dbf + dbf = 1992

tmcw — Tue, 28 Apr 2009 21:53:00 -0800

I'm working on some code for quickly pulling together shapefile data and other data (statistics, etc) and spitting out maps. That means JOINs. Thanks to the 1990-quality standards of GIS, attribute tables are in dbf files. How does one deal with these blasts from the past? I'd ideally like something like sqlite which can use dbf as a backend or quickly import and export dbf files. The line of thought of using xBase, xHarbour, xcetera seems to lead to this bizarro world of programming-language-database-solutions which makes 0 sense in the modern world.

What's a guy to do?

Also - I know, ideally, a spatial database is the way to go, but in this situation, I want people to be able to do this quickly, and I know that they'll have shapefiles and tables in csv, etc., not database-ed data.

Thanks for any guidance! I've hit my google limit and am now thinking there's something obvious I'm missing...

Adventures in Data Interoperability

agentofselection — Sun, 14 Dec 2008 16:20:25 -0800

How do I convert a large raster image into a table for analysis and manipulation? I have a bunch of raster-format GIS data (e.g. DEMs, satellite imagery) which I would like to perform a regression analysis on (among other things) in a statistics package. I have often started with a table, performed my analysis, tacked some parameters onto the top of the table, and had ArcGIS treat the table as a raster. This time, I'm starting with a raster, and I want to convince my stats package that it's a table. (If it helps, image formats available include .bmp, .jpg, .jp2, .img, .png, .tif, and ESRI GRID.)
So, briefly: help me convert a raster into a table, where every entry in the table represents one cell of the raster. (I am aware that this will be a very large table.)

Customizing GPS applications with ESRI?

badstone — Mon, 19 Jan 2004 11:37:47 -0800

Has anyone here developed custom GIS apps with ESRI's Java Map Objects? Cost and licensing issues aside, how does it compare with open Java GIS libraries such as GeoTools?