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whuber earned this badge 67 times |
apr 23 at 23:37
What is the approximate error of the Pythagorean Theorem vs. Haversine Formula in measuring distances on a sphere at various scales?
apr 3 at 16:38
Workflow for determining stream gradient?
mar 13 at 15:59
Raster noise reduction and edge smoothing
mar 7 at 17:11
Are ellipsoids a mathematical necessity?
feb 16 at 14:55
How do I compare two maps to determine which is better?
feb 12 at 10:03
Minimum number of samples for kriging interpolation
feb 7 at 2:05
GIS data for fast food industry
jan 31 at 9:16
How can I create weighted Thiessen polygons?
jan 23 at 22:57
Trilateration algorithm for n amount of points
jan 19 at 14:30
What is Lanczos resampling useful for in a spatial context?
jan 12 at 17:36
Reprojection - Learning the ins and outs
jan 9 at 13:46
How to smooth the polygons in a contour map
dec 26 at 17:42
Packing Polygons within polygon
dec 22 at 6:44
How do I randomly alter a raster map of habitat types?
dec 10 at 19:17
How accurate is approximating the Earth as sphere?
dec 7 at 10:10
How to find the most spread out locations?
nov 24 at 11:34
How to calculate average slope in a grid?
oct 25 at 13:41
How can I conduct Geographically Weighted Principal Component Analysis using ArcGIS, Python and SPSS/R?
sep 11 at 0:11
How can I calculate the average width of a polygon?
aug 30 at 18:05
Calculate distortion outside a UTM zone
aug 23 at 15:31
How to find the minimum-area-rectangle for given points?
jun 27 '12 at 20:49
Fastest way to spatially join a point CSV with a polygon Shapefile
jun 27 '12 at 18:29
How to find a point half way between two other points?
jun 21 '12 at 19:34
Calculating Flow Direction and Delineating Basins from Projected vs. Unprojected DEM Data
jun 19 '12 at 20:23
How to count consecutive pixel values for a set of rasters?
jun 13 '12 at 16:27
Curved point-to-point “route maps”
may 23 '12 at 13:02
Why are the results from the same data different in ArcGIS vs MS Excel?
may 23 '12 at 4:32
How much Water on Earth(USGS) : A Wrong Map representation?
may 22 '12 at 12:37
How to generate random locations nearby my location?
apr 3 '12 at 12:28
How to find the center of geometry of an object?
mar 9 '12 at 13:04
Measuring distance in spherical Mercator vs zoned UTM
feb 23 '12 at 11:31
Points to Polygon
feb 14 '12 at 23:59
How do you compute the earth's radius at a given geodetic latitude?
feb 10 '12 at 20:29
Optimal video cards for GIS programs
jan 19 '12 at 4:17
“Oddities” in the Shapefile technical specification
jan 8 '12 at 15:52
Connecting line features and determining the length of the longest line
jan 3 '12 at 15:42
Are there any general rules of thumb for selecting a transformation for Georeferencing?
dec 12 '11 at 13:41
How to build an artificial 'dam' across a river?
nov 30 '11 at 21:41
Recommend topics to be included in a Computer Science for Geospatial Technologies course
nov 30 '11 at 18:00
What's the difference between a projection and a datum?
nov 29 '11 at 22:24
Random sampling of raster using R
nov 29 '11 at 17:58
How to compare two spatial point patterns?
nov 29 '11 at 3:02
What resampling technique should be used when projecting aerial photos?
nov 23 '11 at 10:18
Producing building shadows?
oct 23 '11 at 6:11
When to use which Shapefile attribute data type?
oct 12 '11 at 3:21
One dimensional map of the world?
aug 24 '11 at 20:57
How can I find the most remote spot in Eastern United States?
aug 10 '11 at 17:06
In what coordinate systems do true circles appear round?
may 7 '11 at 8:52
How to create an accurate Tissot Indicatrix?
apr 20 '11 at 4:17
How to measure the accuracy of latitude and longitude?
apr 12 '11 at 2:21
How to divide a polygon into specific sizes using ArcGIS?
mar 18 '11 at 0:26
Is there a name for deformation-based maps?
mar 11 '11 at 3:00
What is the point of standard symbology?
mar 5 '11 at 23:58
Why is the 'straight line' path across continent so curved?
