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May
29
comment Good resources on geocoding algorithms
+1 great information
May
29
comment Spatial databases learning resources for newbies
What is the audience? Developers? First year students in GIS?
May
29
comment How to create a circle in PostGIS?
Nicklas, you are correct about the casting and I agree with you 100% about the local projection (i.e knowing your data). Nevertheless, if the answer is that he just wants to have "world-wide" data, IMHO, the casting logic inside the Geography type will do a much better job at figuring out what SR is appropriate for that particular distance operation rather than any other complicated custom logic. Another good thing about the geography type is that although a lot of the operations are currently casted to cartesian math, the operations keep getting updated to use sphere mathematics.
May
29
comment MapQuest License
Google also gives you "caching", but like a said, it is a gray area. There is a huge difference between adding your results to memcached or redis vs storing it in the GeoDatabase. Besides, they also include provisions for asking you to get rid of the cache. Also remember that it is easy on their end to flag the fact that you are doing bulk downloads, What are you trying to do with the POIs?
May
29
answered How to create a circle in PostGIS?
May
29
revised Secure online GIS for sensitive data?
was more specific about the questions asked instead of assuming prior knowledge on this subject
May
29
comment POI Datasets for North America
I am surprised that OSM, Nokia and Teleatlas are not listed
May
29
comment Speeding up Python calculated timestamp field in ArcGIS Desktop?
Just a note, calling the pre-canned gp functions will be faster most of the time. I explained why in a previous post gis.stackexchange.com/questions/8186/…
May
29
comment A lot of pointers to load on map-A better solution
Since OL is client side technology, it will not reduce the amount of data transfered. However, if he were doing server-side clustering, it would help greatly :)
May
29
comment Why do valid polygons repeat the same start and end point?
@Kirk it would have been nice if you showed how the rings are laid out; is it a "banana-like" list of coordinates with one outer ring or is it an outer ring with an inner ring that touches the outer ring at only at one vertex?. Even at that, the answer for your particular question is implementation specific. Check out Paul's notes on Polygon validity 2010.foss4g.org/presentations/3369.pdf
May
29
comment After running the Version Changes tool ..Export pre-reconcile/post records from parent
trust me, I know this will work :) haha
May
29
answered Secure online GIS for sensitive data?
May
29
comment FeatureLayer SaveEdits failing
Can you post some sample code? Also, do you have an HRESULT back?
May
29
answered MapQuest License
May
20
answered Is there any experience using Computer Games to display GIS data?
May
18
comment Smallest GIS library for embedded devices?
do you care about licensing?
May
18
comment Best GIS system for high performance web application - PostGIS vs MongoDB
Well, you can always "webscale" by turning fsync = off ;)
May
18
answered Does Google Maps API provide statistical tools or even raster to vector conversion?
May
18
comment Is there a standardized or “most used” dummy Z value?
Also, my recommendation was for the usage of NaN was as it relates to the Z value inside the geometry. So regardless of whether the value is in a database or not, IMHO it should be serialized with the geometry - so it should just work...
May
18
comment Is there a standardized or “most used” dummy Z value?
for integers you can have NaNs: numeric_limits<int>::quiet_NaN()