5,957 reputation
42579
bio website
location Vancouver, Canada
age
visits member for 4 years, 3 months
seen 5 hours ago

Apr
23
comment Averaging satellite data with missing values (using Python)
How many total images are you working with?
Apr
23
comment Averaging satellite data with missing values (using Python)
You can apply a mask to your imagery in order to exclude areas where data is missing if they aren't already classified as 'no data'.
Apr
22
awarded  Constituent
Apr
22
comment Official source for QGIS icons or banners?
There is an SVG folder included in the install as well, but it doesn't look like it includes any GIS-specific files - mostly symbology.
Apr
22
comment Select by attribute expression invalid in python
+1. As an aside - searching for features based on an FID is bad practice as they may be missing or reassigned in some cases.
Apr
22
answered Official source for QGIS icons or banners?
Apr
22
comment How to create Point Transects along line?
I have done exactly this in VB.NET (using ArcObjects) - would this be an acceptable solution for you or are you looking to do this manually/with python?
Apr
22
comment Steps for creating an online webmap with editable features using ArcGIS Server/SDE and SQL Server?
We do have a SQL Standard license installed on one of our servers. Chat would work - 10AM PST/1PM EST tomorrow? Same time later this week if that doesn't work?
Apr
19
comment Steps for creating an online webmap with editable features using ArcGIS Server/SDE and SQL Server?
We are stuck in the ESRI world and we already have the software - I just happen to be new-ish to the web GIS world and have found this process particularly frustrating. I have created similar/simple web maps using open source software, but the requirements for this particular project are different.
Apr
19
revised Steps for creating an online webmap with editable features using ArcGIS Server/SDE and SQL Server?
deleted 12 characters in body
Apr
19
comment Steps for creating an online webmap with editable features using ArcGIS Server/SDE and SQL Server?
Thanks very much for taking the time to reply. To answer your questions: 1) ArcGIS 10.1 Enterprise, 2) IIS7, 3) I thought SDE was needed at 10.1 for feature editing?, 4) We have options on where to install (a couple servers), 5) Yes, secured.
Apr
19
comment How to combine (join?) two overlapping polygons to determine combined area they cover?
@Clickinaway - Given how the question was phrased ("combine (join?) two overlapping polygons"), Dissolve seemed like the most suitable answer.
Apr
17
revised Steps for creating an online webmap with editable features using ArcGIS Server/SDE and SQL Server?
added 381 characters in body
Apr
17
comment Clipping Buffers
What do you want to clip the buffer polygons by? Another polygon file? It would be odd to try and clip polygons by overlapping polygons in the same featureclass. What is your desired output - would dissolving the buffer achieve the desired results?
Apr
17
answered Finding depression with contour lines
Apr
15
answered How to combine (join?) two overlapping polygons to determine combined area they cover?
Apr
15
awarded  Caucus
Apr
12
comment Is it possible to automate the detection of clearcut areas in optical satellite imagery?
+1 for useful links. 250m is a little coarse for this purpose though as some clear cuts would only be represented by a few pixels.
Apr
10
comment Compare two Digital Elevation Model (DEM)
Fair enough - though I am under the impression that ArcGIS is off the table. A Python script utilizing GRASS may be the best approach then if R will be too inefficient.
Apr
10
comment Compare two Digital Elevation Model (DEM)
+1 @whuber. Without knowing much about the DEMs (are they either identical or not identical?) I would think you'd need to consider more than just the difference between matching pixel values. A more in-depth analysis of slope (or other metrics) across a neighborhood would yield more information. To start you can use R for the programmatic calculations and GRASS/GDAL for the file handling without using the GUIs.