221 reputation
18
bio website linkedin.com/in/maxuhlenhuth
location Boston, MA
age 24
visits member for 3 years, 7 months
seen Jun 6 at 1:50

Computer programmer and entrepreneur. I'm interested in applying technologies towards solving environmental problems. I develop primarily in PostGIS, Django, and HTML/JS.


May
23
comment QGIS 2.0. how to load MRSID raster layer
Doesn't appear to exist anymore...
May
13
asked GRASS “Argument list too long” with run_command
Nov
26
awarded  Nice Question
Jun
3
awarded  Tumbleweed
Nov
28
awarded  Yearling
Jun
13
awarded  Scholar
Jun
13
accepted OGR/GDAL threading results in low core utilization
Jun
12
awarded  Self-Learner
Jun
12
awarded  Supporter
Jun
12
awarded  Teacher
Jun
12
answered OGR/GDAL threading results in low core utilization
Jun
11
comment OGR/GDAL threading results in low core utilization
@lynxlynxlynx - yep. Memory is definitely not the bottleneck. Been trying to track this thing down all day... this is pretty weird.
Jun
11
asked OGR/GDAL threading results in low core utilization
May
16
comment Area units for GEOS area property?
@whuber - how are you determining the "correct" area of the polygon? Are you using the local projection for NY? I'm trying to be able to do this across the world - is there generally a good way to do this? I'm surprised that the PostGIS ST_Area function isn't more accurate...
May
16
comment Area units for GEOS area property?
The area property of a GEOS object is a float (not an Area object), or at least that's what I'm seeing (so you can't call .sq_m).
May
15
comment Area units for GEOS area property?
and @whuber - thanks for your quick replies! Like scw suggested, I tried the geography field approach (although I would have preferred to avoid creating additional models in the database) like this: class DummyBounds(models.Model): bounds = models.MultiPolygonField(geography=True) objects = models.GeoManager() In my code I write: db = DummyBounds(bounds=polygon) sq_meter_area = db.bounds.area print sq_meter_area And it appears that my "sq_meter_area" variable is actually still in square degrees (I get 0.000386078620723). Am I doing something wrong?
May
14
awarded  Student
May
14
asked Area units for GEOS area property?
Dec
18
awarded  Autobiographer