473 reputation
213
bio website anoved.net
location New York State
age 31
visits member for 2 years, 7 months
seen Sep 19 at 1:22

Crew Member, Spaceship Earth


Mar
8
comment How to read Greek fonts (ISO-8859-7) in shapefile attributes within QGIS 1.8.0?
@CaoMinhTu Great! Glad to be of help.
Jan
25
comment Where can I get a world map with boundaries of regions and communities for commercial use?
Regarding the GADM data, have you considered contacting the developers to inquire about permission for commercial use? The license statement reads "Redistribution, or commercial use, is not allowed without prior permission." (emphasis mine). Worth a shot to see if they're amenable to any sort of licensing or attribution arrangement.
Jan
23
comment Are there any Objective-C frameworks for shapefile drawing?
As a partial solution, you could use Shapelib to read your shapefiles - but that won't render them too.
Dec
21
comment How to read Greek fonts (ISO-8859-7) in shapefile attributes within QGIS 1.8.0?
Please do give the .cpg method a try, since it essentially declares the shapefile's encoding - useful if the shapefile was produced without specifying a correct encoding.
Dec
20
comment Zoom to Shapefile attribute table row feature
Can you clarify what you mean by "without selected until the end of table one by one"? It's unclear to me whether you do or do not want to zoom to the extent of the whole shapefile if there is no selection. In either case, the comparison of df.zoomToSelectedFeatures() and df.extent = lyr.getSelectedExtent() here or here may be helpful.
Dec
20
comment So I am a programmer. What do I do to become a mapper?
I can't offer much advice besides suggesting you assemble a portfolio to highlight the GIS experience you evidently do have. Incidentally, I am keenly interested to learn more about all these job opportunities for mappers with programming experience. :)
Dec
17
comment Convert map to use space oblique mercator projection
Cool. For anyone who's interested in more background on the Space Oblique Mercator, check out Map Projections: A Working Manual, a 1987 USGS pub (w/free PDF) written by John Snyder, one of the projection's original developers.
Dec
16
comment How to read Greek fonts (ISO-8859-7) in shapefile attributes within QGIS 1.8.0?
Perhaps the problem is specific to Windows; I've tested this method with QGIS 1.8.0 on Mac OS X 10.8.2 as well as QGIS 1.7.5 on Linux Mint 14.
Dec
15
comment How to read Greek fonts (ISO-8859-7) in shapefile attributes within QGIS 1.8.0?
Thanks for suggesting some sample data! I've updated my answer again to give a specific solution for that example.
Dec
15
comment How to read Greek fonts (ISO-8859-7) in shapefile attributes within QGIS 1.8.0?
On the contrary, QGIS 1.8 does recognize .cpg files (I've edited my answer with an example) - but since I don't have a Greek shapefile to test, I concede that it may not be any help in ZISIS' case.
Dec
11
comment How to extract elevation from .HGT file?
Beat me to it, and with more detail to boot!
Dec
11
comment How to extract elevation from .HGT file?
What software are you using? There are some notes on the .hgt file format in the SRTM documentation, but a specific step-by-step answer depends on the software you have available.
Apr
5
comment Are there any geocoding plugins for QGIS that interpolate along linear features instead of querying web services?
Thanks to @dakcarto for suggesting a fix to activate the MMQGIS plugins properly. "Geocode from Street Layer" is a good starting point. (My ideal geocoding plugin would be able to determine the street segment endpoints from the actual feature geometry - this plugin looks for the endpoint coordinates to be provided in the attribute table.)
Apr
5
comment Are there any geocoding plugins for QGIS that interpolate along linear features instead of querying web services?
Ah! That does the trick. Thanks.
Apr
5
comment Are there any geocoding plugins for QGIS that interpolate along linear features instead of querying web services?
Hmm. I've successfully installed MMQGIS - the plugins appear in a "mmqgis" submenu under Plugins - but nothing appears when I select "Geocode from Street Layer" (or any other MMQGIS plugin). I'm using QGIS 1.7.4 on Mac OS X 10.7.3. I've restarted QGIS; same situation. Any tips for getting these plugins to activate? (Apologies if I've missed some obvious step.)
Apr
5
comment Are there any geocoding plugins for QGIS that interpolate along linear features instead of querying web services?
Thanks! I had not found MMQGIS (it did not come up in a search for "geocode"/"geocoding" in the Fetch Python Plugins window.) The "Geocode from Street Layer" tool looks like it will fit the bill.