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Questions tagged [arcmap]

ArcMap is the former flagship application of ArcGIS Desktop and the tag for that (arcgis-desktop) should also be added for any questions about its GUI

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66 votes
3 answers
95k views

Layers with same coordinate system should align/overlap in ArcMap but do not?

I put 4 different layers into my ArcMap document, but only one of them will show up on the map! I should be seeing the other 3 layers as well. When I do a Zoom to layer, I can see one layer, but I ...
CaliforniaGirl's user avatar
50 votes
5 answers
10k views

Debugging ArcPy scripts

I have written many Python scripts using ArcPy in ArcMap 10, and so far my only means of debugging is restricted to printing messages to the geoprocessing results window using arcpy.AddMessage(). Are ...
Tanner's user avatar
  • 7,383
39 votes
6 answers
42k views

Creating square buffer around point feature using ArcMap

I would like to create a square buffer from a point feature but I do not understand the code that goes into it. Similar questions have been asked on the forums.esri website but that was over 10 ...
Kimball's user avatar
  • 509
38 votes
21 answers
35k views

Connecting to PostGIS database from ArcMap for display and query without ArcSDE?

How can I connect to a PostGIS database from ArcMap using ArcGIS Desktop 9.3 and later? I would like to be able to perform spatially enabled queries and receive the results back (e.g. spatial and non-...
fmark's user avatar
  • 9,381
38 votes
14 answers
117k views

Getting boundary of raster image as polygon in ArcMap

I have a rectangular raster image in ArcMap. How can I produce a polygon which is just the extent of the raster image? That is, I want to have a polygon layer with a single quadrilateral which is the ...
robintw's user avatar
  • 4,006
37 votes
11 answers
113k views

Performing reverse clip in ArcMap

Is there a way to perform a 'reverse' of the clip function in ArcMap? I am not exactly sure how to explain this so here is a diagram:
Alan Carr's user avatar
  • 2,475
35 votes
9 answers
79k views

Adding GPX files into ArcMap?

What is the smoothest route, the easiest user experience, to add gpx files to ArcMap? Ideally, I'd like to interact with .gpx with the same facility as .shp, being able drag'n'drop onto the map ...
matt wilkie's user avatar
  • 28.2k
28 votes
8 answers
87k views

Extracting coordinates of polygon vertices in ArcMap?

I've got about a dozen polygons in a feature class loaded in ArcMap 10, all in geographic WGS 1984. How do I easily obtain the coordinates associated with each vertex of each polygon in that feature ...
hpy's user avatar
  • 3,157
27 votes
6 answers
51k views

Changing data source for all layers in MXD?

I have an MXD. It connects to about 30 layers in one of our SDE databases. I want to change the SDE database they connect to. Is there a way to do this without having to right-click every layer ...
brenth's user avatar
  • 1,553
27 votes
7 answers
12k views

When Versioning with ArcSDE can posted edits be cancelled or rejected? [closed]

I am using ArcMap 9.3.1 and attempting to work with an ArcSDE geodatabase (with one polygon feature class) that has already been registered as versioned. I'm new to versioning and am still trying to ...
Sole23's user avatar
  • 451
27 votes
1 answer
7k views

Calculating Flow Direction and Delineating Basins from Projected vs. Unprojected DEM Data [closed]

This is somewhat of a theoretical question stemming from some discussions with colleagues on the topic of implications with delineating basins with projected (e.g., Albers Equal Area) vs. unprojected (...
MapBlast's user avatar
  • 1,127
26 votes
5 answers
12k views

What makes a MXD file size larger and how to decrease its size?

I know that MXD contains information about layers, symbology and configuration of default tools. I have a few that are exceeding 50 MB and are starting to take a while to load up. What are some of ...
Cody Brown's user avatar
  • 4,387
25 votes
3 answers
2k views

Counting consecutive pixel values for set of rasters using ArcGIS Spatial Analyst?

I'm using ArcGIS 10 with Spatial Analyst. I have a set of rasters (8 in total) that only every contain a 1 or a 0 for each cell. Each raster represents a different years worth of data. For arguments ...
Hornbydd's user avatar
  • 43.8k
25 votes
5 answers
33k views

Adding PDF (especially GeoPDF) to ArcMap as data?

I receive a lot of PDF maps (vector, image, with georeference and without) and I am having to convert them to an image file before I can add them to ArcMap and georeference. I can't see any obvious ...
Jakub Sisak GeoGraphics's user avatar
23 votes
5 answers
33k views

How to produce a better inset map in ArcMap?

Attached is an example of a generic inset map designed in ArcMap 10. For all the wonderful things that this software can accomplish, there has to be a more sophisticated way to produce better looking ...
Aaron's user avatar
  • 51.7k
23 votes
5 answers
26k views

Obtaining extent of each polygon in shapefile using ArcPy with ArcMap

In ArcGIS 10 and Python I want to get the extent (xmax, ymax, xmin, ymin) info of each of the polygons in a shapefile. I can get the extent of the whole shapefile using file=r"D:\SCRATCH\ARCGIS\...
GeorgeC's user avatar
  • 8,238
23 votes
1 answer
11k views

Converting SLD to Esri layer or lyr file

Is there a software/extension to convert an SLD to Esri. lyr format, or to import the SLD directly?
giohappy's user avatar
  • 1,262
22 votes
4 answers
15k views

Optimal video cards for GIS programs [closed]

I recently purchased a Dell XPS-8300 (i7-2600|16 GB DDR3 RAM|64-bit Windows7) which I intend to use primarily for GIS programs. I bought a refurbished model because it was much cheaper and because I ...
THX1138's user avatar
  • 1,621
22 votes
2 answers
41k views

Adding shapefile or feature class as layer in ArcMap using ArcPy

I am trying to automate various tasks in ArcGIS Desktop (using ArcMap generally) with Python, and I keep needing a way to add a shapefile to the current map. (And then do stuff to it, but that's ...
Tom W's user avatar
  • 429
21 votes
7 answers
31k views

Removing only some donut holes from polygons using ArcMap

I am using ArcMap 10.0. I have a trick for removing the donut holes, which is converting the polygon to line and then creating polygon out of the lines and in the end merging all of them. The drawback ...
Arash's user avatar
  • 1,360
21 votes
7 answers
18k views

Recalculating full extent of File Geodatabase feature class?

I have a featureclass in an Esri file geodatabase. When I edit the features using the editor in ArcMap, and I delete most of my features and keeping only the ones in the middle, the zoom to layer ...
offermann's user avatar
  • 521
21 votes
2 answers
6k views

Using ArcPy to determine ArcMap document version

Is there a way with ArcPy to identify the version of a Map Document (MXD). I am working on a solution to inventory our MXD's and would like to know if a document is 8.1, 9.2, 10.0, etc. I am ...
RyanKDalton's user avatar
  • 23.1k
21 votes
4 answers
5k views

Applying four colors theorem in polygon map using ArcMap

I need to apply the four colors theorem in a polygonal shape in a way that I do not need to choose manually each color to put in each region. I wish to knows if there is any extension, plug-in, script ...
NaN's user avatar
  • 313
20 votes
16 answers
16k views

Seeking ArcGIS Desktop Tips and Tricks

A couple times a month, I check out the various tips and tricks CW posts on Stack Overflow and always learn something new. I went back and forth as to whether to pin this question to a specific ...
20 votes
3 answers
12k views

Casting ArcPy result object from arcpy.GetCount_management() as integer instead?

I am using ArcMap 10.1. I am trying to get a number by counting how many points are in a shapefile. And this works, except I then am running into trouble using that number somewhere else. Eventually, ...
Erica's user avatar
  • 8,982
20 votes
8 answers
58k views

Select distinct values from a single column of an attribute table (or layer)

Is there a way to select distinct values from a column in ArcMap? I have the data in both GDB and SHP formats. I have searched for ways to select using SQL, QueryLayers, ModelBuilder and individual ...
Steve's user avatar
  • 410
20 votes
8 answers
51k views

How to manually break statement execution in Python window of ArcMap?

How does one break the execution of a long-running process in the python console of ArcMap? For example, how do you break a long iteration like the one below once it is started? for i in range(1, 50)...
Alex Essilfie's user avatar
20 votes
5 answers
46k views

Creating point file along line (trail) at regular distances (0.20 miles) using ArcMap

I am using ArcMap 10.1. I have a trail network that I'm trying to establish signs along the trails every 0.20 miles. Is there a way to create the point file from the line feature?
Jen's user avatar
  • 203
20 votes
3 answers
5k views

Producing building shadows using ArcGIS Desktop?

How would you generate building shadows from building footprints? I have attribute values for the heights of buildings. So would preferably like to have the shadows' sizes vary based on that. The best ...
EightyTwenty's user avatar
19 votes
7 answers
27k views

Changing order of features in shapefile [closed]

I have a shapefile and I want to change the order of the features. Is that possible? I want to sort the features in the shapefile because I'm embedding this shapefile in a mobile app. The app will ...
tato's user avatar
  • 813
19 votes
4 answers
26k views

How to use consistent symbology between multiple stretched rasters in ArcMap?

I have a series of continuous rasters representing the same phenomenon over time, so I need to use the same symbology across them all. So I set the stretched symbology of the first raster, with a ...
Stephen Lead's user avatar
  • 21.1k
18 votes
8 answers
43k views

Getting X Y coordinates and cell value of each pixel in raster using ArcPy [closed]

I'm really new to Python and I would like to know whether there is a quick method to get cell values of a raster pixel by pixel and the coordinates (map X Y coordinate of centre of each pixel) using ...
Dash's user avatar
  • 189
18 votes
1 answer
30k 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 ...
Martin's user avatar
  • 4,928
18 votes
6 answers
20k views

Copy, not export, a table from Arcmap

How can I copy a table, or selection of rows or columns in a table, from Arcmap without going through the pointy-clicky-typey exercise of Export table? The destination of said copy could be anything: ...
matt wilkie's user avatar
  • 28.2k
18 votes
3 answers
40k views

Rounding column in attribute table using ArcGIS Field Calculator?

I want to use the Field Calculator in ArcMap to round an existing column to two decimals. Currently I have a column that is 6 decimal places long and would like to simply round it down to 2 decimals. ...
jsmith's user avatar
  • 741
18 votes
3 answers
37k views

Differences Between Clip Tool and Intersect Tool

How is the clip tool different from the intersect tool in terms of how it works or the result? I don't have a specific situation in mind. I was learning about each of these tools and was curious about ...
Diana Di Leonardo's user avatar
18 votes
6 answers
72k views

Splitting polygon into multiple equal-width polygons in ArcMap 10

I am adding parking spaces into a parking lot, and I need them to be exactly the same shape and not overlap each other or have spaces between. In ArcMap 9.3, there was an editing task that allowed you ...
Tanner's user avatar
  • 7,383
18 votes
4 answers
1k views

Implementing ringmaps in ArcMap

In a recent article by Stewart and colleagues in IJHG I stumbled upon interesting technique of visualizing data using ringmaps. Some more information referenced in the article about this technique ...
user avatar
17 votes
4 answers
7k views

Defining parameter descriptions for Python Toolbox help?

I'm trying to create some Python Toolboxes for our ArcMap application (e.g. MyTool.pyt) I can see that the help text is defined with the classes self.description attribute. However, once I run the ...
John's user avatar
  • 357
17 votes
11 answers
26k views

Why won't ArcMap 10 snap? [closed]

I'm really confused by this. ArcMap will seeminly randomly decide to not allow snapping when editing. Sometimes its only for certain features, sometimes for only parts of the same feature (e.g. one ...
Matt's user avatar
  • 899
17 votes
3 answers
54k views

Removing duplicate features with same geometry in ArcMap?

Is it possible to uniquely identify each geometry in a feature layer? Essentially I have a polygon feature layer with many rows of data represented by the same geometry. I would like 1 row for each ...
Dylan Hettinger's user avatar
17 votes
2 answers
11k views

Correcting gaps and overlapping polygon (parcels) geometry

I have come across a resource that we rely upon almost daily that is in terrible need of repair. It is not our own product and the supplier is generally not interested in fixing the problem. We are ...
Michael Markieta's user avatar
16 votes
7 answers
11k views

Find/Replace Double Quotes using Python Parser of ArcGIS Field Calculator?

I'm trying to use the Field Calculator (ArcMap 10.0) to strip out double quotes in an address field (I didn't put them in there, believe me). I've tried many incantations but am still unable to even ...
Random Geo guy's user avatar
16 votes
3 answers
22k views

Automatic text wrapping in ArcMap layout text element?

How can I word-wrap a text element on an ArcMap layout, when it contains a lot of text? go into Layout mode choose > Insert > Text paste in a long text block eg lorem ipsum The text block now ...
Stephen Lead's user avatar
  • 21.1k
16 votes
4 answers
30k views

Automated/geoprocesing tool to slice, clip, or cut polygons using polylines using ArcGIS Desktop? [duplicate]

Looking for a simpler method here. I am trying to split up / cut / slice existing polygons by using existing poly-lines. An example would be splitting a water body or land parcel at the point where a ...
brnt's user avatar
  • 221
15 votes
5 answers
6k views

Using Hillshade option in ArcMap?

Here is a pretty pic of the raster I am using - with no effects applied - just the color ramp and histogram adjusted to show out all the relief - albeit in a very 2D way! I have a raster layer that I ...
Vidar's user avatar
  • 1,870
15 votes
1 answer
4k views

Repairing data sources in multiple MXDs using ArcPy?

I have about 50 mxd's with all broken layers that I have been going through and manually resetting. The data was moved from another computer and the folder structure was changed so it isn't just a ...
Chaz's user avatar
  • 806
14 votes
3 answers
35k views

Setting which layers are selectable in ArcMap?

I cannot figure out how to toggle selectable layers in ArcMap 10. In 9.3, I remember being able to choose from a list which layers I wanted to be able to select features from in the map. Let's say ...
Tanner's user avatar
  • 7,383
14 votes
3 answers
6k views

Deleting large numbers of fields in ArcGIS 10

It there a good strategy for deleting a few thousand fields from the attribute table of a shapefile in ArcGIS using either ArcMap or ArcCatalog? I know how to manually right-click and choose 'delete ...
djq's user avatar
  • 16.3k
14 votes
4 answers
30k views

Tool or process to automatically snap endpoints of polylines within given proximity using ArcMap?

I created a network of polylines that were all supposed to be connected. However, I just realized that many of the endpoints of the lines aren't connected, but are very close. I think there should ...
Tanner's user avatar
  • 7,383

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