7,305 reputation
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bio website dmahr.com
location United States
age 25
visits member for 2 years, 11 months
seen 2 hours ago

Oct
13
awarded  Popular Question
Sep
30
awarded  Explainer
Sep
1
awarded  Enlightened
Sep
1
awarded  Nice Answer
Aug
29
comment ArgGis seems to snap but doesn't
Is your data frame in the same coordinate system as both layers you are editing? ArcGIS' on-the-fly projection for layers could cause this discrepancy.
Aug
28
comment Striping Artifact in Aster DEM Mosaic
I would try rerunning your workflow using nearest neighbor resampling and see if it makes a difference. The interpolation in cubic and bilinear resampling can sometimes cause issues.
Aug
22
awarded  Constituent
Aug
22
comment Average frequency of zip code change for a given address over the course of year
@Maksim Understood. Can you tell us anything else about the dataset? For example, do the individual features for ZIP codes ever overlap? And how are point addresses (e.g. P.O. boxes) represented? Mostly I'm just curious about how well ZCTAs are a proxy for the official thing. Thanks for weighing in!
Aug
22
comment Average frequency of zip code change for a given address over the course of year
@Maksim Is this Zip Code feature class you speak of publicly available? Or is it an internal USPS only product? The only polygonal ZIP code dataset I was aware of was ZCTAs from the Census Bureau.
Aug
11
awarded  Caucus
Aug
4
answered Comparing census tracts
Jul
31
awarded  arcpy
Jul
30
awarded  Enlightened
Jul
30
awarded  Nice Answer
Jul
14
comment Distance from rivers, taking into account terrain elevation
Are you trying to determine the flow distance to the nearest river based on flow direction? Or the straight-line distance that accounts for slope?
Jun
22
awarded  arcgis-desktop
May
23
comment Unexpected Polygon Zoom Extents with a Rotated Dataframe
@amasephy Glad that it worked out for you. ArcMap's dataframe rotation functionality is implemented in a klugey way that isn't well supported by ArcPy.
May
22
answered Avoid NoData after Focal Statistics Majority
May
21
revised Unexpected Polygon Zoom Extents with a Rotated Dataframe
added 872 characters in body
May
21
comment Unexpected Polygon Zoom Extents with a Rotated Dataframe
@amasephy Are your grids always the same aspect ratio? I'm assuming you are created a printable map book, so should the maps always be 8.5" by 11" or something like that?