905 reputation
313
bio website
location
age 29
visits member for 3 years, 5 months
seen Aug 19 at 17:58

Sep
16
comment Are there any open source network analysis tools?
Once this is closed, it would be helpful to combine the other two under a useful title. Alternatives to pgRouting has better answers, but its title is less informative.
Sep
16
comment Are there any open source network analysis tools?
Oh, you're right. My cursory glance for questions didn't turn those up. Let's vote to close before more answers show up.
Sep
15
comment Given a terrain, how to draw the stream flow path?
Okay. When you said "I am less clear on how to execute this", I assumed you wanted practical advice on how to do this. Presumably the workflow used by these software packages could provide a guide to the overall structure of your algorithm. From there I suggest you consult the academic literature about specifics. For example, Tarboton, 1997 was referenced several times in my search for flow direction algorithms.
Sep
15
comment How to create distinct polygon zones from interpolated raster in ArcGIS
It's be nice to have a more specific description of what your raster now looks like and what you'd like it to look like. What specifically bothers you about it? The pixelated edges?
Sep
15
comment Given a terrain, how to draw the stream flow path?
Well, this seems to be the procedure used by most GIS packages. TerraFlow is an open source option, but I have never used it. What are you planning on using to handle the TIN?
Sep
14
comment Points to Cells
Do you want to interpolate between the points or only represent the points you have?
Sep
6
comment ArcGIS 10 add-in: ComboBox add-in component focus issue
I see. This is a tough one. I wish I had other ideas.
Sep
6
comment ArcGIS 10 add-in: ComboBox add-in component focus issue
What happens if you open a form, rather than a combo box? Or you could just change the HintText to your message.
Sep
6
comment Strange Behavior in Focal Statistics
Well, I fixed this problem by converting my "map" radius measurements to "cell" radius measurements. I'm not sure if this problem is general enough to be worth keeping. Advice? Should I delete?
Aug
24
comment 3D map with latitude and longitude
@NBibodi, I'm still confused about what outcome you're looking for. Over on SO it sounded like you wanted to take a PNG file and add a geographic location. Now I see that you have some sort of location-less 3d file that you want to take a 2d image of, and add location to that image? Is that right?
Aug
24
comment 3D map with latitude and longitude
@zearth, say what?
Aug
24
comment 3D map with latitude and longitude
What software are you working with the map in?
Aug
23
comment Geographic co-ordinate system displayed as projected
Ha, fair enough!
Aug
22
comment Geographic co-ordinate system displayed as projected
@whuber, don't you mean the monitor would need to be an ellipsoid?
Aug
19
comment Does Bing Maps 7 support KML?
Sorry, it isn't supported, but the post I linked to has an interpreter for using GeoRSS in Bing v7 with jQuery. I'll rewrite to be more clear.
Aug
18
comment Font color in legends ArcGIS 10
You may want to choose this as the correct answer so the Community bot stops bumping it up to the front page.
Aug
17
comment Problems using the 'Split' tool with ArcGIS
+1 for saving old workflows. I should start doing that...
Aug
17
comment Problems using the 'Split' tool with ArcGIS
Or calculate it in Access. It's funny - I did this exact thing yesterday. Sorry I didn't think of it sooner!
Aug
17
comment Creating Regular points every meter at a county level. Is this possible?
I'm beginning to think you boss should find another method. Using a raster to find a grid of points is a shortcut, but if you need a more intricate pattern, python (as in @Hairy's answer) might be the way to go.
Aug
17
comment Creating Regular points every meter at a county level. Is this possible?
Wow. Same process but with a 0.5 meter cell size would be similar. Alternately, convert your extracted points back to a 1m raster based on the unique point values, convert that raster to polygons (or polylines if the resulting points don't need to relate to the centroids), then use Data Management Tools > Feature Vertices to Points (requires ArcInfo). And there's yet another option if you have network analyst.