On Fri, Feb 29, 2008 at 10:28:26AM -0700, we recorded a bogon-computron collision of the <[EMAIL PROTECTED]> flavor, containing: > On Fri, Feb 29, 2008 at 08:45:42AM -0700, we recorded a bogon-computron > collision of the <[EMAIL PROTECTED]> flavor, containing: > [line after line of prose detailing problems importing TIGER polygons] [followed by line after line detailing how I got around it, with a mistake]
> Yes, this worked, after a fashion. > [...] > HOWEVER, I was able to force things to work in a ham-fisted way, by > cribbing off of the steps that v.db.join is taking --- it's just a > shell script that does a bunch of v.db.addcol and SQL update queries. > Here's how I did it for the sake of completing the record: [...] Right before I posted I had done a bunch of steps that got me what I wanted, exactly. Then I deleted the vector I created and redid the process step by step for the sake of my post to make sure I got them all right. Turns out that there was a mistake somewhere in the attempt to repeat it, and I don't know what it is. I will have to painstakingly go through my history file to see where I diverged in my approaches. The problem comes in the v.extract command: v.extract input=test35001_all layer=2 output=t35001_areal where="LAND IS NOT NULL" type=area For some reason, while this DOES select only those features of test35001_all for which LAND is non-null and put them into t35001_areal, it oddly does NOT copy the contents of all of the table columns that we just added. Those columns are there, but they're all null. So the final d.what.vect on the extracted layer gives none of the attributes I just went through the trouble of adding. It did the first time I tried, so I must have made a mistake in the process I outlined in my prior post. When I really, truly have it down I'll post again, and shut up until then. -- Tom Russo KM5VY SAR502 DM64ux http://www.swcp.com/~russo/ Tijeras, NM QRPL#1592 K2#398 SOC#236 AHTB#1 http://kevan.org/brain.cgi?DDTNM "And, isn't sanity really just a one-trick pony anyway? I mean all you get is one trick, rational thinking, but when you're good and crazy, oooh, oooh, oooh, the sky is the limit!" --- The Tick _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
