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Sep
8
comment Converting huge geotiffs to tilepyramid
this is a borderline advertisement. To push it off the fence into a solid answer please summarize how one would use FME to produce tiles and link to documentation that covers the OPs issue directly rather than just the front page. Thanks.
Sep
8
comment Dimensional analysis/conversion problem: Map scale to image resolution (dpi)
which begs the question of: is native resolution actually necessary? Do you or your client have a device that can actually print that density? (all the same, thanks for the question and formula!)
Sep
8
comment Radio Propagation Modelling, from a GIS view point
Thanks! That's spot-on, "The goal of this paper was to introduce specialists in GIS and geographical databases to the problems of propagation prediction and radio-network planning for cellular radio communications" (Curious, Nitro pdf reader opens the document but only shows the figures, no text. Adobe ReaderX work fine.)
Sep
8
comment Radio Propagation Modelling, from a GIS view point
Yes I'm quite aware that people over there looking here are likely to be much more concerned about our radio savvyness ;-)
Sep
7
comment subtypes vs domains
this is a nice succinct definition of subtypes and domains, particularly domains, and I like that. When I read it there was an "Aha! now I get it" moment. However it shouldn't really be voted so high for this particular Q because it doesn't go to the root of the OPs problem, who already know s/he wanted Coded Value domains but had been unsuccessful in acheiving it.
Sep
7
comment Looking for an annotated vectorial map of the world
Please don't post simple one liners with links. They don't help anyone understand the utility of what's at the other end, and when, inevitably, the resource succumbs to link rot it just becomes dead wood to trip over. On the hand a link with a short summary of the destination and why it's relevant can remain useful long after the resource itself has moved or vanished.
Sep
7
comment Speed of various raster data formats
thanks! I folded the summary into the answer itself, so it's more self contained (see edit link at bottom left of each answer/question).
Sep
6
comment Speed of various raster data formats
+1 for the linked article, but the important info is offsite and will be lost to us if that page ever goes down or moves. I suggest giving a summary conclusion of the article so that in the event the page is not available, even momentarily, readers have something to work with for future research and thinking. Thanks!
Sep
1
comment Convert Lambert Conformal Conic to WGS84
instead of editing the epsg database, which will get overwritten on updates etc., save the projection info in a text file and call from command line with gdalwarp -s_srs my-custom-lcc.prj ...
Sep
1
comment Building GDAL With Read/Write Support of FileGDB
I think @Sean's comment is really an answer.
Sep
1
comment How to generalize coastlines?
If you just want to do a passable job and move on, @R Thiede's answer is probably the best place to start. If you want to work on the real challenge, simplifying linework without losing the meaning of the shapes, see the related questions gis.stackexchange.com/questions/38/… and gis.stackexchange.com/questions/440/….
Aug
31
comment How do I use sys.exit(0) in an arcpy script to exit early without having an error message show up?
thank you for posting concise code example which clearly illustrates the logic and leaves out the extras. +1
Aug
30
comment Identifying Coordinate System of Shapefile when Unknown?
Thanks for the tip Melita. The code is there (*.frm). The license is public domain. PrjFinder is a companion to the book "Working with Projections and Datum Transformations in ArcGIS" (2006).
Aug
30
comment How to reproject spatial data using free libraries?
at bit late now as the CW horse is out the gate already, but if answerers paid more attention to the "how do I do that?" part of the Q it wouldn't be just a "list of X".
Aug
30
comment Using ArcGIS 10 ModelBuilder to perform In-line variable substitution for input data path?
As far as I know, you can't do this in Model builder, though it sure would be useful. See gis.stackexchange.com/questions/480/…. It was written when I was using arcgis 9.3, maybe v10 is different. You can do this in python though.
Aug
30
comment Best practices for organization and tidiness - How do you deal with multiple copies of layers?
A good question. Actually it's not a qestion, it's a quest. A question leads to a single or narrow-ish set of answers, and once settled, it's over. A quest is an ongoing thing, an adventure that may never have a definitive end, and that's what you have here. Resign yourself to the truth that no matter what convention you settle on, it will not work completely or thouroughly. That said, there are conventions you can use to make the path smoother and easier travelled. Kevin's answer, and the follow on comments, are a very good start in this regard.
Aug
29
comment Scale in printed map (mxd) is different in code to manual printing
thanks for coming but with the NIM#. These are the kinds of things I like to keep track of.
Aug
5
comment How to copy attributes from one polygon layer to another?
...and to make up for the hit, a GREAT QUESTION would be to ask why using Excel to process data can lead to very serious problems. And how to use it safely.
Aug
5
comment How to copy attributes from one polygon layer to another?
this answer and resultant commentary is a wonderful illustration of how a "bad" answer can invoke good results, revealing info that might not otherwise come to light. Please don't feel like you should delete it to avoid "taking a hit".
Aug
5
comment Memory leak in ArcGIS aggregate points/buffer/Addfield/cursor
@Hairy, no harm no foul. It's hard to read tone in plain text. ;-) I would change it if I understood what you thought was wrong with it, other than something to do with the cursor. You have "4 - update cursor", but no "0 - create cursor" step. My suggestion was (meant to say) that perhaps moving the position of the cursor from outside to inside the loop, or vice versa, would solve the leak (or maybe not even use a cursor)..