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GIS Analyst


6h
comment Mirror two data frames
One method that isn't fully dynamic, is to use a Viewer Window. You could open a viewer on one data frame and zoom around. Then just choose zoom map to viewer to get the other data frame at the same extent. This works alright if the viewer window data frame is only being used for a reference. It also works handy if you have multiple monitors because you can place your viewer window on another screen.
6h
comment Mirror two data frames
Based on the question, and the possible duplicate Dan C mentioned, I would say you are stuck with only matching extents and only being able to change the extent in the parent data frame. What's your use case for needing to be able to pan/zoom in both data frames?
7h
comment Mirror two data frames
Are you looking for this to work dynamically, or is the end result a printed/exported map?
9h
comment Remove duplicated items in Arc attribute table?
If you don't have an Advanced license, you can play around with the Summarize tool to find duplicates. It does require some scripting or manual work to remove them however.
1d
comment Displaying Trees in Arc Scene
So, when you put this shapefile in ArcScene, does it automatically use the elevations in the Z column for initial placement? After that, you want all points raised 20 ft?
Nov
5
comment How to get Listfields from Autocad DWG?
I think you may have to convert your DWG to a Feature Class in order to access that information. ArcMap has limited functionality with DWGs.
Nov
1
awarded  Yearling
Oct
23
comment How to cartographically represent water flow?
The Stream Order tool in ArcGIS allows you to choose the Strahler or Shreve method for calculating order. I tend to agree for this particular case that the Shreve method may produce better results.
Oct
23
comment Exporting .jpg files from data driven pages in Arcmap
It is generally considered good practice to delete variables at the end of a script, so they aren't left floating around during that Python instance. One situation where it might matter is if you use the same variable (e.g. mxd) later in the same script, or in another script in the same Python instance.
Oct
23
comment How to copy layers between MXD's with arcpy?
If you already have the mxds open in ArcMap, it may work just as well to just drag and drop layers among the mxds. With Python, you don't even have to have them all open. Just a thought.
Oct
21
comment How to access a Feature service hosted on arcgis.com which is shared only with particular groups or organization
Are you wanting to setup user logins or app logins for your application? Also, does your application use OAuth 2-based APIs? Discussion Link: resources.arcgis.com/en/help/arcgis-rest-api/index.html#//…
Oct
10
revised Stereo Analyst & ArcGIS 10.1 - volume calculation
Fixed grammar
Oct
10
answered Stereo Analyst & ArcGIS 10.1 - volume calculation
Oct
10
comment Stereo Analyst & ArcGIS 10.1 - volume calculation
Do you have the 3D Analyst Extension for ArcGIS? You can create a TIN from your polygon layer to calculate volumes. Your polygon needs to be in a projected coordinate system though.
Oct
1
comment Use updatcursor to replace values in multiple fields
So, what is the script doing? What errors does it throw? Do you run it outside of ArcMap, or in the Python window?
Oct
1
comment How to properly write a txt to use as table in ArcGIS 10.1
Honestly, the text format looks just fine. It mimics a csv file which ArcMap generally handles well. One option may be to place your text file in Excel and save it out as a csv. @Chris R - you may have a good point.
Sep
12
comment Spatially join points to polygons in ArcGIS Desktop?
In that case, what results do you get when you join in reverse? I.e., points are your target layer. There are numerous other ways to play with your join to test how it is behaving. You may also want to try the actual Spatial Join tool since it has some different options than the right click version.
Sep
12
comment Spatially join points to polygons in ArcGIS Desktop?
If you are performing a One-to-Many join, then it is possible to have your results contain more features than the original. Are you using your grid layer as the base and the points layer as the join layer? If so, then the resulting layer will contain an extra count for every point that intersects the same polygon. E.g., if you have one polygon with two points in it, there will be an extra count. One polygon with four points - three extra counts, etc., etc. It appears in your case, there were 179 cases of extra counts.
Sep
9
comment Extracting flow accumulation to stream shapefile
Maybe you could convert the flow accumulation raster to a points feature class? Then create stream networks based off the flow accumulation raster, and cut up the lines according to your points layer? Or use some form of distance calculation from the lines to the points in order to attribute the streams, if the points and lines don't perfectly intersect?
Aug
29
comment Adding information from excel into ArcGIS
We need more info. Are you saying you already have a shapefile with property boundaries and you want to join your Excel table to the already existing layer? Or are you wanting to build a layer based off the Excel table? If it's the former, you need a column in both the shapefile and Excel table that are keyed to each other so that they can be joined together. If it's the latter, you will probably want coordinate info in your Excel table.