Questions tagged [arcgis-10.1]

Use this tag when ArcGIS 10.1 is the version you are using from the ArcGIS platform.

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Assigning point IDs to respective start and end attributes of polyline using Arc Hydro with ArcMap

I have two shapefiles, Point and Polyline. I'm trying to populate my polyline layer with the point data ID (systemID) where the lines start to where they end; eg. create two columns (from and to). The ...
JrUser's user avatar
  • 159
6 votes
6 answers
27k 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 ...
nancy's user avatar
  • 61
11 votes
4 answers
24k views

Remove lock on feature class

When i try to delete a feature class , after or during the use of an Arcgis engine app which uses the same feature class i got an error concerning the lock , so i can't get ride of this lock until i ...
geogeek's user avatar
  • 4,566
11 votes
2 answers
27k views

Invalid Topology [Topoengine error] from ArcGIS for Desktop?

Using ArcGIS 10.1 for Desktop, I'm trying to run the Identity function on two large data sets but it fails every time. I don't think it is a lack of hardware as I can run other processes on the same ...
falcs's user avatar
  • 1,111
8 votes
3 answers
4k views

LiDAR (.las) to bare-earth DEM: average points spacing and cell size?

I am using ArcGIS 10.1 to generate a DEM (bare earth) from LAS dataset. To accomplish this, I use Las Dataset to Raster tool as described in Esri website. I have read here and there in the web that ...
NewAtGis's user avatar
  • 1,536
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
7 votes
1 answer
4k views

Adding Table to Layout View using ArcPy?

I am using ArcGIS 10.1 and I have a non-spatial table and some layers in a Data Frame. When I switch to Layout View I want to be able to show the map in a data frame element and the table in another ...
Raluca's user avatar
  • 145
6 votes
1 answer
41k views

Writing conditional (if/then) statements into ArcGIS Field Calculator using Python Parser?

I have gotten stuck on seemingly simple ArcGIS field calculator python expression. I obtained a great answer to a another similar question a few years ago: Using Range in Python expression of ArcGIS ...
sirgeo's user avatar
  • 2,029
27 votes
5 answers
24k views

Is ArcSDE no longer needed at ArcGIS 10.1?

Through my frustration of not finding the post-installation wizard with ArcSDE 10.1 and being unsuccessful with the command line tool to start an SDE service on our SDE databases, I found I was able ...
Luke's user avatar
  • 385
8 votes
4 answers
12k views

Debugging RuntimeError: workspace already in transaction mode from arcpy.da.UpdateCursor and ArcSDE feature classes?

I am making my first attempt at editing an ArcSDE feature class with python through a da.UpdateCursor. I'm essentially taking code I've written for a file geodatabase feature class and applying it to ...
Emil Brundage's user avatar
5 votes
2 answers
3k views

Performing Point Distance analysis using Basic level license of ArcGIS Desktop?

I am using ArcView (ArcGIS Desktop Basic) 10.1 and I need to perform a point distance analysis. What are the steps to determine the distance from A to B-Z, B to A-Z, C to A-Z, etc?
Jennifer Lopez's user avatar
3 votes
1 answer
5k views

Iterating through columns in table using ModelBuilder?

I am unable to find any info on how to use ModelBuilder to run a certain spatial analysis function on each column in a table. I have a table to sample locations and at each location there are a ...
Mr.ecos's user avatar
  • 471
29 votes
3 answers
9k views

Why learn/use Python Toolboxes over Python Script Tools? [closed]

I've written a few Python Toolboxes (which are new at ArcGIS 10.1), but am yet to decide whether/when I should write them rather than Python Script Tools in a standard toolbox. I thought the Online ...
PolyGeo's user avatar
  • 65.2k
13 votes
1 answer
17k views

How to add feature class to MXD with ArcPy (Python)? [duplicate]

I am using ArcGIS 10.1 and I am trying to add a feature class that I create to an MXD, so that I can join to it. This all needs to be done using Python. Is this possible?
ianbroad's user avatar
  • 9,141
10 votes
3 answers
10k views

Replacing non-English characters in attribute tables using ArcPy and Python?

I have a few shapefiles where some of the attributes contain the non-English characters ÅÄÖ. Since some queries doesn't work with these characters (specifically ChangeDetector), I tried to change them ...
Martin's user avatar
  • 4,928
7 votes
2 answers
14k views

Batch Clip in ModelBuilder of ArcGIS for Desktop?

I have multiple rasters and feature classes that I want to clip to a study area. I am pretty new to ModelBuilder. I know you can right click the clip tool to batch clip outside of ModelBuilder but ...
Calavin's user avatar
  • 869
26 votes
2 answers
8k views

Creating Thiessen (Voronoi) polygons using lines (rather than points) as the input features?

I have a set of line features inside a particular polygonal boundary. For each line, I'd like to generate a polygon inside which every possible point is closer to the given line than to any other line ...
Dan C's user avatar
  • 12.2k
12 votes
4 answers
12k views

Editing PostGIS layer from ArcMap without Enterprise Geodatabase (ArcSDE)

I have been working with QGIS/PostGIS for a while now, without problems, but now I have to change QGIS for ArcGIS Desktop 10.1. I am having trouble adding a layer from PostgreSQL and being able to ...
Federico's user avatar
  • 193
12 votes
2 answers
10k views

Finding differences between shapefiles using ArcGIS for Desktop?

Every month I have to QA/QC some streets data for an entire county (over 47,000 records). The first step is to compare the two files. Currently, I'm using a tool that was created in house via VBA ...
Craig's user avatar
  • 4,580
8 votes
3 answers
7k views

Getting subbasin area of each specified river segment?

I have a DEM file of one district, and I have used those following tools in spatial analyst tools in ArcGIS 10.1 to get files related to the original DEM file: Fill Flow direction Flow accumulation ...
Heinz's user avatar
  • 1,545
5 votes
1 answer
311 views

Why are z-values replaced with zero after in_memory use in Python?

My script takes separate 3D feature classes, calculates a field, appends to a target feature class, and then deletes the originals. This is a huge data processing task of over 4700 mass point feature ...
Justin's user avatar
  • 51
3 votes
6 answers
21k views

ModelBuilder not adding output feature class to Table of Contents in ArcMap

I'm trying to create a tool in ModelBuilder that will take a new point from a user, create a feature class for this point and display it on a map. What I've done is: I've created a feature class for ...
Michal's user avatar
  • 347
3 votes
5 answers
44k views

How to calculate a percentage of an area covered by polygons ArcGIS 10.1

I created an Aspect Layer with 9 Zones on which I want to use the Tabulate Area Tool with another polygon layer namely Woods. So what I actually need to know is the percentage, covered by woods for ...
Daniel's user avatar
  • 399
1 vote
2 answers
4k views

Summarizing data using ArcGIS Desktop?

I am relatively new to GIS and am facing some difficulties trying to summarize/pool data together. I've attached the file to make it easier. FID_pc11_1 (Refers to postcode identifier) and count ...
user32581's user avatar
1 vote
1 answer
632 views

Identifying row and column location of a raster image using ArcGIS 10.1

The solution already available online gives a python syntax error ERROR 000989 Python syntax error: Parsing error SyntaxError: invalid syntax (line 1) when I write $$rowmap + 1 in map ...
Ali's user avatar
  • 11
20 votes
1 answer
6k views

Guidelines for organizing Python Toolboxes (.pyt) in ArcGIS

For one of my tasks I need to create a Toolbox with three tools (python scripts). Instead of ordinary tbx I've decided to write it as Python Toolbox (pyt). Everything is clear except the "good" way ...
Alex Markov's user avatar
  • 4,017
13 votes
2 answers
6k views

How to link dataframes in ArcGIS or QGIS?

The below image shows a layout in ArcGIS 10.1 with four dataframes. Each dataframe is of the same geographic area, although they are different images. For example, the top left image is a 1989 DOQ, ...
Aaron's user avatar
  • 51.7k
8 votes
4 answers
29k views

Python Script to Add Fields to Feature Classes

I have to try to add a field called 'Name' to a bunch of different feature classes using python, and then access the name of the feature class to fill in the field. I have no idea how to even start ...
EmilyF's user avatar
  • 429
7 votes
1 answer
10k views

Using CURRENT map document in Python script tool?

I am attempting to use this code in a tool that I am working on: mxd = arcpy.mapping.MapDocument("CURRENT") df = arcpy.mapping.ListDataFrames(mxd)[0] XMIN = df.extent.XMin YMIN = df.extent.YMin XMAX =...
eseglem's user avatar
  • 800
7 votes
4 answers
11k views

Calculating X and Y of line start and line end using ArcPy?

I have a series of polyline shapefiles and I am trying to automate the process of calculating the X and Y coordinates of the line start and line end using Python. I have added the 4 fields (startx, ...
JC11's user avatar
  • 829
7 votes
3 answers
26k 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.
user24101's user avatar
6 votes
1 answer
4k views

How to Keep Database and Server Connections active

It seems like everyday I go to publish a service or connect to my SDE I get messages that I can't connect. It is particularly annoying when trying to publish a service to ArcServer. The connections ...
Craig's user avatar
  • 4,580
6 votes
1 answer
3k views

Saving a ArcMap layers RGB values into the attribute table

I am wanting to take a symbolized layer in an mxd, and save it's symbol color (like a polygon fill) into its attribute table as an RGB value. My goal is to use this value in MapInfo to symbolize it's ...
GISI's user avatar
  • 1,169
6 votes
2 answers
4k views

Zonal statistics for millions of overlapping polygons in ArcPy?

I am running ArcGIS 10.1 with 64-bit GP on Windows 8.1 x64. I want to calculate the zonal statistics of buffer polygons based on parcels and a kernel density raster. The 4.7 million polygons overlap ...
bcaradima's user avatar
  • 837
5 votes
1 answer
3k views

Exporting Graphic with transparency in layout to PDF using ArcGIS for Desktop?

I'm using ArcGIS 10.1 for Desktop. I am trying to export a pretty simple map to PDF and finding the results are not what I expect. I have inserted two graphics on top in Layout. One is just a ...
Russell Collier's user avatar
5 votes
2 answers
5k views

Creating empty group layer within existing group layer using arcpy.mapping?

Referencing this question, Adding new group layer with ArcPy?, I'm trying to use python to add a empty group within a group layer. So far I'm able to add a empty group within the map document, ...
artwork21's user avatar
  • 35.1k
4 votes
2 answers
5k views

Getting all results from Selection made by Attribute or Location using ArcPy?

Using arcpy I'm trying to get the results of a selection, or what is currently selected as a list. Basically I'm attempting to build an addin which on click will either perform an operation where I ...
mtpultz's user avatar
  • 185
4 votes
2 answers
7k views

Clipping from a tiled LAS dataset with LASTools (for ArcGIS)

I have huge amounts of lidar data stored as tiled datasets per project. The "tiles" are separate LAS files based on our national map sheet setup (800 by 600 meter). To keep an overview of the data I ...
HavardMoe's user avatar
  • 761
4 votes
6 answers
18k 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....
Martin's user avatar
  • 4,928
3 votes
1 answer
1k views

How to buffer a point in a Python Add-In by ArcMap's selection tolerance?

In this answer to another Python add-in question I suggested supplying a search_distance to the SelectLayerByLocation function in order to allow points and lines to be selected by an intersecting ...
blah238's user avatar
  • 35.8k
3 votes
1 answer
565 views

Controlling Categories in Script Validation Tools - Expanding Groups By Default

The validation tab in your script tool properties allows you to put parameters in categories. The help states: Put parameters in different categories. Categories are expandable window shades with ...
Rex's user avatar
  • 594
3 votes
3 answers
1k views

Using ArcPy to verify paths of Hyperlinks?

I've recently come across an issue where some of our hyperlinks aren't working. I'm familiar with python and have made similar scripts before, but I would first like to ask for your assistance to ...
GISHuman's user avatar
  • 3,671
2 votes
4 answers
4k views

Iterating through Bands of Raster using ArcMap ModelBuilder

I have a large number of rasters with 3 bands (R,G,B). What I want to do is add all 3 bands of each raster together to end up with a single band image with the summed R,G,B values in each pixel but I'...
eddie416's user avatar
0 votes
1 answer
527 views

organizing attribute table: multiple sets of variables per point

I would like to have hints on the best way to organize my dataset (I am working with ArcGIS 10.1, advanced license). I would like to build a points layer, each point being a weather station in the ...
NewAtGis's user avatar
  • 1,536
0 votes
2 answers
4k views

Agent Analyst tool interface will not open on ArcGIS for Desktop?

For me the Agent Analyst tool interface won't open. I have ArcGIS 10.1 sp1 installed on my computer. I have followed these steps so far: added the refresh.config.exe text file (ArcGIS 10.1 using ...
lewte041's user avatar
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
14 votes
9 answers
28k views

Manually classifying graduated data outside of range in ArcGIS for Desktop?

I have two shapefiles representing grids with values that are symbolized with graduated colors, shown below: You can see that the two shapefiles encompass similar ranges of data, but assign slightly ...
hfisch's user avatar
  • 585
13 votes
6 answers
26k views

Partitioning Line into Segments using ArcGIS 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 ...
user1690130's user avatar
13 votes
3 answers
8k views

Benefits of *.las vs *.xyz or *.ascii when working with LiDAR in ArcGIS for Desktop?

From time to time, we use LiDAR data for modelling in ArcGIS. Previously, we would be supplied either an .xyz or .ascii of the data, but more recently, we are also being provided .las files in ...
TsvGis's user avatar
  • 2,079
10 votes
1 answer
9k views

Changing/adding keyboard shortcuts in ArcMap?

How can I change or add keyboard shortcuts in ArcMap? I have tried Customize --> Customize mode --> Commands --> Keyboard. However, this does not seem to actually work. I can add shortcuts and link ...
Martin's user avatar
  • 4,928

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