Questions tagged [arcmap]

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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61
votes
3answers
76k 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 ...
8
votes
2answers
19k views

Sorting feature class to calculate sequential ID field using ArcGIS Field Calculator?

I am in ArcMap and I want to sort the records based on a field and then do a Calculate Field with an auto-incrementing value with the sort in-place. Any ideas? It looks like I could get an update ...
6
votes
5answers
15k views

How to vary the transparency of symbols within a single layer in ArcMap?

I have a polygon layer which I am drawing in ArcMap using a graduated color symbology: Is it possible to vary the transparency between the classes, so that the transparency tapers off with the color ...
37
votes
21answers
30k 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-...
18
votes
7answers
19k 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? I want to sort the features in the shapefile because I'm embedding this shapefile in a mobile app. The app will ...
9
votes
2answers
12k views

Interpretation of ArcGIS Kernel Density legend parameters

In ArcMap 9.3 I've used Kernel Density to map various incidents, but the resulting shapefile doesn't display any units of measurement. Is there a good, not-to-technical source that would explain in ...
7
votes
4answers
18k views

Extracting one band from three band raster in ArcMap?

I'm fairly new to ArcGIS and I get into trouble extracting a single band layer from a raster image .img in ArcMap that I want to use after in zonal statistics. So far, all help I found is to do the ...
7
votes
1answer
14k views

Adding automated values to attribute field?

I have parcel and buildings layers. In their attribute tables I want to replace "NULL" values with numbers from 1 to 2000, in "Parcel ID", or "Building ID" field. How can I do this in ArcGIS ...
24
votes
9answers
65k 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 ...
9
votes
5answers
8k views

Displaying dynamic table in Data Driven Pages environment?

I am creating a map series that has many polygons per sheet. There is annotation for the polygons however some polygons are very small with no annotation for them (annotation would completely hide a ...
10
votes
1answer
2k views

Adding labels with symbols to legend in ArcMap?

I'm creating a map with ArcGIS Desktop v10.2.2, showing museums as points. The museums layer has no symbol and the labels are made of a circle filled with color with the ID inside, taken from the [ID] ...
5
votes
4answers
14k views

Deleting polygon defined area from raster layer in ArcGIS Desktop?

Which tool do I use in ArcGIS 10.1 for Desktop to exclude areas covered by vector polygon layers from a raster layer? I want to keep portions of the raster layers that exclude the portions covered ...
28
votes
1answer
6k views

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

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 (...
12
votes
4answers
5k views

Comparing two Digital Elevation Models (DEMs) from LAS files?

I have two LiDAR files (.las), one is original let's say with X points. And the other is copy of the first .las file but with Y points, where Y is less than X. Now, I want to compare the Digital ...
16
votes
4answers
26k 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 ...
11
votes
4answers
4k views

Refreshing open attribute table in ArcMap using ArcPy rather than ArcObjects?

I am running the Calculate Field GP tool from the arcpy in ArcMap. When a row value is updated, it does not show up untill I use the Reload Cache tool (Table Options > Reload Cache). How do I refresh ...
6
votes
2answers
1k views

Deleting polygons smaller than certain dimension using ArcGIS Desktop?

I've made a model in ModelBuilder in ArcMap 10.3, what it basically does is creating polygons over open areas such as farm-lands, grass-lands, marshes etc that has a low slope. My challenge is that I ...
3
votes
3answers
11k views

Why do ArcToolbox tools give ActiveX error?

I work with ArcGIS 9.3. When I try to run any ArcToolbox tool I receive the message: Window Internet Explorer [Title of the Window] One or more ActiveX controls could not be displayed because ...
20
votes
3answers
4k 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 ...
14
votes
6answers
8k views

ArcMap Add-in with app.settings not recognizing app.config changes?

I have developed an ArcMap Add-in which requires a configuration file. After spending a while trying to read config values from a single App.Config file (and always getting null) I believe that the ...
21
votes
5answers
26k 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 ...
18
votes
7answers
16k 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 ...
10
votes
2answers
3k views

Inserting newlines in Rectangle Text elements via ArcPy causes overlap?

I ran across an issue the other day when I tried to use ArcPy's mapping module to edit rectangle text elements with newlines (\n) in an ArcMap document. Here's what the output looked like: Here's ...
1
vote
3answers
2k views

ArcMap fill polygon with points (highest possible number) (Bin Packing Problem: Best Fit)

Is there a tool for ArcMap 10 that fills a given polygon with point geometries? The points should have a pre-defined distance between themselves, but the points position can vary. Fishnet is not an ...
30
votes
9answers
65k 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 ...
10
votes
5answers
33k views

Changing Symbology of Multiple Layers using ArcMap/ArcPy?

Is there a way to change symbology for multiple layers in ArcMap or ArcCatalog. I want to change the symbology of multiple layers at once.
26
votes
10answers
57k 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:
6
votes
1answer
5k views

Making linear regression across multiple raster layers using ArcGIS Desktop?

I have a series of 5 rasters which represent a value for 5 consecutive years. Is there a way to create a linear regression for each cell over the 5 layers and output the slope? The result would be ...
5
votes
2answers
10k views

Using selection of features in ArcMap in Python script?

I am trying to write a python script and am stuck on the first obstacle. I want the user to select features in ArcMap and then use these selected features in a python script. Is that at all ...
5
votes
2answers
3k views

Use arcpy.mapping to list broken data layers?

I want to list all the broken links in all mxds in a server drive. But whenever I try I get an error come up. Can someone use a specific example, say the drive is D drive, how would I put it into ...
15
votes
3answers
41k 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 ...
3
votes
2answers
8k views

How do I use python to batch process the reprojection of a group of shapefiles?

My client would like his shapefiles reprojected and I would like to get a script that can batch process all the files located in the same folder. I am new to Python and ArcPy but am very interested. ...
1
vote
2answers
279 views

Find out which raster has highest values

I have 3 rasters for water use and 1 raster for water supply. I want to know which one has the highest values which will mean that it has the greatest influence on available water supply. What ...
0
votes
2answers
2k views

Getting latitude and longitude raster from DEM using ArcGIS Desktop?

Could anyone provide with a way to calculate latitude and longitude from DEM, for each raster cell? In previous posts about this, I have seen that some suggest calculating lat and long in certain ...
3
votes
1answer
2k views

ArcGIS Attribute Subdomain?

Is there a way to create attribute subdomains in ArcGIS with clauses? For example, if I'm editing a line feature class of pipes, I create a domain for the pipe type to be either plastic or metal. I ...
15
votes
4answers
20k 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 ...
16
votes
8answers
45k 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 ...
9
votes
4answers
35k views

Measuring area of raster classes?

Are there any tools or methods in ArcMap that can measure the area of each level of the kernel density output? Note this is just a kernel density plot (not a shape file or polygon). Kernel Density ...
8
votes
2answers
1k views

How to display nebulous boundaries between regions with indistinct edges?

I'm trying to map the boundaries between regions which don't necessarily have a hard edge. For example, areas where languages predominate don't have a distinct edge, but instead have a degree of ...
5
votes
2answers
933 views

How to apply ArcGIS time slider on Multiple Data Frames at once?

Is there a way to use the Time Slider on multiple data frames simultaneously? Example: My Dataframe 1 shows precipitation values over an area and DataFrame 2 shows corresponding temperature.. I want ...
3
votes
1answer
9k views

Calculating percentage of overlap between two different layers

I have two different layers (Layer 1 and Layer 2) both made up of many thousands of polygons. Many of the polygons in Layer 1 overlap to differing degrees with Polygons in Layer 2. I need to calculate ...
17
votes
6answers
18k 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: ...
10
votes
2answers
18k views

Executing script in Python window of ArcMap?

I've been writing Python in my text editor so I have a Python script, script.py. I'm still developing it so don't want to put it in my toolbox yet, and at the moment this means copying and pasting it ...
9
votes
5answers
18k views

Adding file name to attribute field using Calculate Field?

Does anybody know how to add the shapefile name to a field in the file's attribute table? I've found a description: 'You have to use inline variable in CalculateField like %Name% in expresssion ...
9
votes
2answers
2k views

How to determine projection parameters when customizing a projection

I am trying to customize an Albers and a Hotine Oblique Mercator (HOM) projection to minimuze distortion in the region I am analyzing. The region extends from about 51 to 62 degrees latitude, covering ...
5
votes
2answers
3k views

Running ArcPy script from ArcObjects?

the standard method requires to run ArcPy script in command line, i've struggled with it to run but without a result, i can import arcpy, set the workspace to the geodatabase path and describe the env ...
2
votes
6answers
10k views

Error running Arc Hydro tools function in ArcMap?

I am trying to run a function from Arc Hydro tools in ArcMap 10.1; Sink evaluation. But before it can finish it returns an error message, that, frankly, I don't understand at all. It goes System....
6
votes
3answers
18k views

Creating attribute table for raster data?

I have raster dataset for rainfall but it does not have an attribute table. How can I create tabular data using the same raster file and the join back again to it? Software used is ArcMap 10.1.
3
votes
3answers
1k views

Using Replace Geometry to replace selected feature with circle in ArcGIS Desktop?

I have a polygon shapefile and I want replace every irregular polygon with a circle. I think I can do it with the Replace Geometry tool. But once the Replace Geometry tool is selected, draw a polygon ...
0
votes
4answers
3k views

Doing Math calculations within ArcMap Dynamic Text?

Is it posssible to perform any math on ESRI ArcMap dynamic text? For example I have the area of a SDE park layer's SHAPE.AREA, but it is in m2 because the layer is in NAD_1983_UTM_Zone_17N. I want ...