ArcMap is the main application of ArcGIS for Desktop and the tag for that (arcgis-desktop) should normally be used in preference

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automated georeferencing

I am attempting to fully automate the process of georeferencing a load of .png files - i have xml file containing the co-ordinates - but how can i use them? Does anyone have any advice?
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votes
5answers
574 views

How to programatically identify the “Joined Field” in ArcMap?

Is it possible to programmatically identify the Join Field that is being used to Table Join two datasets together in ArcMap? I am currently using ArcGIS 10.0, SP5 and would prefer an ArcPy solution, ...
7
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1answer
2k views

Permanently Change ArcMap's “Maximum Sample Size” Setting?

I've lately been working on feature classes with a huge number of polygons (e.g. all of the Census blocks within the Chicago metro area). I've been needing to symbolize them by quantities a fair ...
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5answers
5k views

How to change the order of features in a shapefile?

I have a shapefile and I want to change the order of the features. Is that possible using ArcMap?
6
votes
1answer
610 views

ArcMap redraws every layer when changing just one

I have 10 layers or so loaded in a data frame in ArcMap 10.2. Some are complex such as NHD hydrology and Tiger roads. Why does ArcMap redraw all layers when I change the symbology of just one? Is ...
6
votes
3answers
2k views

How to digitize a raster automatically

I have a raster (.sid extension) file. I want to digitize roads automatically in ArcMap, QGIS..etc. Digitizing by hand would be too time consuming. How can i do this ? Thanks
6
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4answers
2k views

Where to find .mxd examples for ArcGIS 10

I'm beginner of ArcGIS . I'm trying to learn how to use ArcMap. I would like to find some example MXD files for ArcMap, but couldn't find anything googling. Does anyone have any idea where can i find ...
6
votes
4answers
21k views

How to create polygons from lines?

I am trying to create polygons from a line layer of lots and concessions (large blocks of land in rural areas). The lines are mainly grid style as they intersect mostly at right angles. I need to ...
6
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5answers
2k views

Running ARCgis 9.3.1 and 10.0 on the same machine

I have the full installation Media for 10 (9.3/SQL05 already loaded). And two editor licenses (one loaded and a new license file). What manner of wizardry is involved in getting around the conflict ...
6
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2answers
117 views

Reducing elevation from DEM using ArcGIS for Desktop?

I am so curious how would I strip off elevation from the DEM. I don't know how I would explain it further but I have attached an image to clarify this. I wanted to eliminate the area shaded with ...
6
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2answers
2k views

ArcObjects: How to insert data into a table?

I have a table in ArcCatalog named WorkOrderAss. This table contains 3 columns: (OBJECTID, FeatureName, Name). I want to insert data to this table from the code behind in C#. Any help would be ...
6
votes
3answers
4k views

Arcmap: attach python script to a button?

In ArcMap 9.x how can I attach a python script to a button?
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6answers
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Finding shortest path while avoiding polygon features

I'm developing an extension to ArcMap where I have a set of static, concave polygon features and I'm trying to find the shortest path between 2 points without crossing any of the polygons. Is there ...
6
votes
3answers
202 views

Is the filename of a shapefile the same as its Feature Class name?

This is a very basic question, but I'm not finding the answer on Google or here... I have a bundle of files I have to submit in an incredibly specific format. Our sub-consultants gave us a set of ...
6
votes
1answer
4k views

Calculate area within Python script in Arcmap

I am trying to calculate the area of a polygon within my Python script. I create a new polygon from merging two together, and I'd like to add the area of the resulting polygon to a field in the output ...
6
votes
2answers
729 views

How to refresh the ArcMap display using ArcPy?

Was trying to replicate a RePast Agent Analyst simulation using just Python and arcpy. The script was about urban expansion. The script just changes the values of a column in a shape file. ArcMap's ...
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3answers
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What is the target .NET Framework of ESRI ArcObjects SDK 10.2

I had ArcMap 10 Add-In project built with ArcObjects SDK for .NET 10.1 where I could not reference external COM DLL build on .NET 4.0 due to a .NET forward compatibility issue. (ArcObjects SDK 10.1 ...
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3answers
4k views

How to Partition Line into Segments using ArcGIS for Desktop?

I have a shapefile of U.S. states. I extracted the boundary between two states, resulting in a line segment. For example, the boundary between Georgia and North Carolina. Is there a way to further ...
6
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3answers
3k views

ArcGIS Export Selected Raster Graphics

I'm having a problem exporting raster graphics using ArcGIS 10. It seems simple enough, but for some reason I cannot get ArcMap to work with me. Here are my steps: Add a raster to ArcMap Open the ...
6
votes
2answers
161 views

How to delete last part of a string starting from the 1st non numeric character? [closed]

I'm looking for a Python or VB statement to remove the last part of a string, starting where the 1st non Numeric character appears, using the Field Calculator in ArcMap 10. Here's an example of what ...
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votes
3answers
1k views

How can you find ArcGIS version programatically?

Is there a way using ArcObjects.net to find out what version of ArcGIS is installed on a machine (i.e. 9.3., 10.0, 10.1)?
6
votes
1answer
553 views

overlay county shapefiles for 2 different years

I have county-level shapefile for South Caroline in 1880 and one for 1940. I would like to overlay these two files so that they do the union and indicate the percentage of the land in 1880 that went ...
6
votes
2answers
79 views

How to decide how to “stretch” raster imagery?

I have to symbolize a digital elevation model. ArcMap offers many different setting for stretching the symbology which all give widely different results. Some stretch methods symbolize the data so ...
6
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3answers
2k views

How to efficiently read and reclassify many rasters in R

I've been tasked to create a suitability analysis of wave conditions in the Gulf of Mexico. I have 2 thousand or so raster files that are about 8 MB each (2438 columns, 1749 rows, 1km cell size). ...
6
votes
2answers
136 views

What event is fired when a feature is edited?

When the user draws a new feature (line, point, etc.) in ArcMap, there are null attributes. If the user enters values in these null fields what is the event that is fired? I want to control the ...
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2answers
1k views

Changing Button's Enable-State on ArcMap10-Start

How can the enable-state of a AddIn-Button be influenced on start of ArcMap? My button should be disabled on startup of ArcMap and than turned enabled when the Edit-session is started. In ArcGIS 9.3 ...
6
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2answers
133 views

Select by Attribute within a specific area (using Select by Location?)

I have a map with four layers. Two of these layers cover an entire state, and the other two focus on the area I'm actually interested in within the state. I'm trying to Select by Attribute with one ...
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4answers
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How to check via Arcpy if ArcMap is currently in an edit session or not?

I've created a Python add-in button that helps speed up my coworkers workflow by copying one feature class attribute to another. It uses the arcpy.UpdateCursor function to update a row in the target ...
6
votes
3answers
840 views

Code to open web browser crashes ArcMap when run from a Python add-in

I created an ArcMap Python add-in using ArcGIS 10.1 to open a webpage after the map is clicked. It opens the page but then ArcGIS crashes. import arcpy import pythonaddins import webbrowser class ...
6
votes
1answer
5k views

How to add automate values to attribute field?

I have parcel, Buildings layers, without any information attribute table, and i want to replace "NULL" values with numbers form 1 to 2000, in "Parcel ID", or "Building ID" field thank you.
6
votes
2answers
1k views

How to create a vertical scale bar in ArcMap?

Wondering if anyone out there knows how to create a vertical scale bar in ArcMap? With text I can adjust the angle. Is this possible with a scale bar as well?
6
votes
2answers
504 views

How to alter transparency by spatial location

I'm trying to create a map that has a all layers within a subject area having 0% transparency (full opaque), while features outside that area (defined by a polygon shapefile) having a reduced ...
6
votes
2answers
943 views

How to create regular soil sampling grids?

I need to be able to set up a soil sampling grid at regular spacings of around 50 - 100 meters. Then export the points to a GPS so I can be guided to the points. I am new to GIS and have tried to do ...
6
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1answer
3k views

ArcMap 10 - Extract raster cells from imagery based on RGB value

I've got some aerial photography (format: IMAGINE Image) which is detailed enough to see to fire hydrants and a shapefile of fire hydrants which was digitized based on some CAD data. My project is to ...
6
votes
1answer
324 views

Why does tool take longer to run when in Python script?

I have written a python script that does some euclidean allocation. For that I use arcpy.gp.EucAllocation_sa() method. Now, my python script takes 30-40% extra time than spatial analyst euclidean ...
6
votes
1answer
455 views

Use Python to find the pathname of “Current” Arcmap

I am trying to find the path name of the current ArcMap document that the python script is currently running in. For Example: "F:\2012\1111\MyArcMap.mxd" I tired using sys.argv[0] as shown ...
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3answers
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Convert .mxd with embedded VBA command button to ArcMap 10

I'm trying to convert an .mxd file from an older version to ArcMap 10. The old version had two simple VBA scripts attached to toolbar buttons. I am trying to convert this .mxd to ArcMap 10. For ...
6
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3answers
163 views

How do I display a raster “Background Value” as hollow for more than one set of RGB values?

I have two overlapping .ecw layers of the same area, though one is clipped in the middle, with a white edge. When I set the background value to 255,255,255, and define it as hollow, it only hollows ...
6
votes
1answer
3k views

Analyzing Flow direction in Geometric Networks in ArcGIS

I have a task in ArcGIS which involves using Geometric Network and right now I am experimenting with Set Flow direction function from Utility Network Analyst toolbar in ArcMap. I've read section Flow ...
6
votes
1answer
3k views

Geometry from multiple selected features into one geometry

Lets see if I can explain what I'm trying to do. First of all I have developed an AddIn for ArcMap that can take one selected feature (Polygon) on a layer, grab the geometry of that feature, and save ...
6
votes
2answers
2k views

How to determine elevation drop along a stream with ArcGIS?

I need to calculate(estimate) hydraulic head(elevation drop) along a single river stream in order to find potential site for small hydropower plant. I have a DEM with 20m resolution and raster and ...
6
votes
3answers
520 views

How could I compare polygons with appropriate circle?

My problem is that I have a polygon shape file with 1034 records which are the Greek municipalities. My goal is to compare the shape of every record with the circle. In other words, I want to observe ...
6
votes
1answer
908 views

Editing tables using SQL in ArcMap

We've recently started working with ArcMap, having used MapInfo previously. I've created a shapefile in ArcCatalog and want to update some columns using SQL. In MapInfo I'd write the following command ...
6
votes
1answer
1k views

How to always enable an ArcGIS toolbar?

On ArcMap 9.3.1, is there a way to ensure that a toolbar is always enabled? In my case, I want the Standard toolbar (the one with new/open/save/print icons) to always be visible. I'd like the ...
6
votes
1answer
1k views

Identify polygon overlaps within single shapefile

Using either QGIS (1.9) or ArcInfo (9.3.1) I'm trying to identify unique overlaps of prehistoric building footprints from an archaeological site recorded within a single polygon shapefile. While the ...
6
votes
2answers
839 views

ESRI ArcMap Add-in Config.esriaddinx

I'm in the process of converting an older ArcMap extension to an Add-In in C# and I am trying to best take advantage of the XML based configuration. Config.esriaddinx works great for the basic set up ...
6
votes
1answer
5k views

How can I edit/create new Normal.mxt template in ArcGIS 10.1?

I used to work with .mxt templates often back in version 9 and 8 but things seems to have changed since then. I realized that my new documents are loading a style file I don't want to to be loaded ...
6
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2answers
2k views

How do you construct a definition query to return only those features in the current month without hard coding the date?

I have a feature class containing a date field within a 9.3.1 File Geodatabase. There are "duplicate" features contained within this layer, one feature for each month over the past few months. ...
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votes
2answers
4k views

How to calculate a field in ArcGIS using Python?

I'm trying to calculate a field based on the values of others in the same layer in a calculation. I can't work out why its not working. I've even cut everything down to just be based on one field and ...
6
votes
2answers
969 views

Shortcut to copy current cursor coordinates in ArcMap

Is there a shortcut or an extension to ArcMap 10 that would allow me to quickly copy (to clipboard) the coordinates at the current map position/click? I could implement such a functionality easily ...