0
votes
1answer
6 views

ArcGIS and Python 9.3 How to increase a raster extent by filling extent with no data

I am using feature to raster to rasterize water polygons. It only makes a raster the extent of the features in the polygons, whereas I would like it to be the extent of another existing .tif image. ...
4
votes
2answers
65 views

How to access raster NoData value?

I am trying to programmatically access the NoData value in a raster dataset as shown in the screenshot. Two tools that come to mind to describe raster properties do not seem to be able to describe ...
0
votes
0answers
88 views

UnicodeEncodeError when using arcpy.gp.TraceGeometricNetwork_management() [closed]

I am creating a python tool (run through ArcMap) which will eventually go through a feature class selected by a downstream trace and use the obtained values to do some function. I am trying to follow ...
13
votes
1answer
748 views

How can I utilize NumPy arrays to optimize big data geoprocessing?

I'm interested in learning how to utilize NumPy arrays to optimize geoprocessing. Much of my work involves "big data", where geoprocessing often takes days to accomplish certain tasks. Needless to ...
21
votes
1answer
720 views

What does the adoption of Python by NVIDIA for GPGPU mean for GIS?

Today NVIDIA announced support for the Python language on its flavor of GPGPU (CUDA). Manifold GIS uses CUDA to enable some accelerated raster operations but it is not a programmable environment and ...
0
votes
1answer
268 views

how to make a join with sql server table

I have a question. I'd like to join .shp to table by using AddJoin_management. But I'd like to make join to sqlserver table (not to *.dbf). Is it possible to do? it should look something like this: ...
5
votes
2answers
204 views

Is there a way to increase the search radius of nearest neighbors for the Nibble tool?

I am working with a raster map vegetation types. I have about 20 types with unique raster code values that can be sorted into three classes: 1 - vegetation types I want to expand using the nibble ...
1
vote
1answer
107 views

Adding parameters to a category in a script tool

There is plenty of documentation on how to add parameters to a category in a python toolbox, (See the bottom of ...
2
votes
2answers
388 views

Using select by location to update a field in a feature class

I am using Arc 10.1 and I am working on a script that takes a value from a field within one shape file and updates a field in another shape file based on its location. Basically I have smaller parcels ...
2
votes
2answers
384 views

Calculate Percent coverage using another raster, with dif resolution and orientation

I have a 0.5 meter raster that defines presence or absence (cells are either 1 or 0). I have another 5 meter raster, which I created. I would like to calculate a percent coverage of the underlying 0.5 ...
2
votes
1answer
541 views

how to add a query layer to a mxd in a python script

I want to add a query layer to an arcmap document so that whenever i have a db data update, it is reflected in my ma and I can update my service through python script. This is my script so far... ...
3
votes
2answers
574 views

Majority filter (minimum mapping unit) in ArcGIS with larger window size

I want to run the majority filter in ArcGIS with a window size of 4 or 5 i.e. greater than the default 3. Is it possible? Or some other command (or tool) which might help me achieve that? thanks!
1
vote
1answer
505 views

Arc 10 Python .shp attributes - usings fields to populate other fields - if/then/else statement

Ive been looking for a solution and unable to find one so please help if able: I'm trying to avoid manually inputting Begin and End engineering station values already inputted into a seperate field. ...
2
votes
1answer
466 views

Need help in Python script : Getting an unicode encode error

When I`m running a script (it checks to which database a mxd is connected) I get the following error: return codecs.charmap_encode(input,errors,encoding_table) UnicodeEncodeError: 'charmap' codec ...
3
votes
1answer
136 views

How to add Oracle database connection to AnalyzeforMSD script?

I use this script right now: import os, arcpy directory = r"C:\Project" for root, dirs, files in os.walk(directory): for myFile in files: fileExt = os.path.splitext(myFile)[1] if (fileExt ...
2
votes
1answer
469 views

How to access all mxd files in a folder?

I'm a beginner to Python and am trying to figure out how I can access several mxds in a folder. For example, when I want to use the AnalyzeforMSD function in ArcGIS: import arcpy mxd = ...
2
votes
1answer
103 views

Can I choose specific SDE version to create replica geodatabase from?

I'm trying to automate the process of exporting a replica geodatabase using the geoprocessing tools and eventually a Python script. I can't figure out how to create the replica from a specific ...
12
votes
3answers
627 views

Industry-based examples of using Python in geoprocessing and arcpy

I was asked recently by some students what types of operations GIS Analyst/Developer are usually trying to automate by using Python with geoprocessing in ArcGIS and ArcPy site package. I guess it ...
2
votes
2answers
215 views

How do I automate performing analysis (intersection) between objects within different feature classes, for a large number of objects?

I have two tables of roads - the same roads, from different sources, and am trying to compare how similar their positions are. I'm wanting to buffer each road in one of the feature classes and ...
2
votes
1answer
211 views

Difficulty converting standalone script to ArcGIS tool

As my title says, I am currently trying to make my (working) standalone script into an ArcGIS tool so I'm not the only person in my office that can use it. It essentially selects all the data within ...
1
vote
1answer
110 views

Script to buffer 2 shapefiles within each folder of a root folder

I need some help with ArcGIS python script My folder tree is like this: /Testing location C1 POIS.shp STREETS.shp C2 etc, etc I'm trying to make a script to run from arcgis that would ...
5
votes
2answers
2k views

How do I install ArcGIS 10.1 and use my current Python 2.7.2 install?

I just did a clean OS install and installed ActivePython 2.7.2 I want to use this Python install for use with ArcGIS 10.1 I just installed ArcGIS 10.1 and it did a new Python install. What do I ...
1
vote
2answers
485 views

How do results from a Python script get added to an ArcGIS map? [duplicate]

I have a Python script for ArcGIS that makes a new feature class. I can add this to ArcGIS as a new Script (without parameters), however the resulting feature class is not automatically added to the ...
2
votes
2answers
766 views

How do I construct a file path within Python for a Feature Class within a Feature Dataset?

Based on my understanding of the ArcGIS path structure, a feature class inside a feature dataset inside a geodatabase can be accessed by the following: C:\Menu\Lunch.gdb\Sandwich\Cheese Where ...
6
votes
3answers
372 views

Zero filling attributes using python

Being the AML dinosaur that I am, I am just learning python and I need to convert a 2 digit numeric attribute in a table to a 2 digit zero-filled attribute in a script. Example 9 needs to be 09. Any ...
2
votes
3answers
1k views

How to use ArcGIS 10.1 to make Python scripts for ArcGIS 9.3?

Recently I have been making scripts to run geoprocessing tools for a client who is running ArcGIS 9.3. However I only have access to ArcGIS 10.1. As a result I cannot use model builder in 10.1, and ...
4
votes
1answer
133 views

How to create list from table

I have performed a spatial join on some data and now I would like to take that data and create a list. I'm trying to do this dynamically so that it can be easily repeatable via a script or model. I ...
4
votes
2answers
861 views

arcpy.da.SearchCursor - unique value get second field value

I have a feature class and using arcpy.da.SearchCursor I'm getting unique values of a field (e.g. Name). How can I use this method to get the associated row value of a different field (diff field = ...
3
votes
1answer
170 views

Beginning Arcpy: Asking for a quick review of my script

I cobbled this code together from ESRI documentation and stackexchange answers. I tried to use SearchCursor(points, fields=fieldname) but I get this error: TypeError: SearchCursor() got an ...
8
votes
3answers
383 views

Is there a way to tell the geodatabase version using Python?

I want to find out if either a file or personal geodatabase is 9.3, 10.0, 10.1, etc Is there a way to do this using Python?
3
votes
1answer
1k views

How to create an empty group layer within an existing group layer with arcpy.mapping?

Referencing this question, Add a new group layer with python ArcGIS 10, 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 ...
6
votes
1answer
341 views

Perpendicular lines at start and end of a line

I have some lines. I want to draw perpendicular lines at the start and end of the lines, on both sides of the lines. Can somebody help me in Python? Also, what are the variable settings of the ...
6
votes
2answers
210 views

Add raster paths to shapefile with python (ArcGIS)

I have a problem and maybe someone is able to help me or give me some hints how to start. Situation: I have a lot of raster and of every raster I have the center coordinate. Out of this coordinate I ...
2
votes
1answer
149 views

ArcGIS Desktop's registry value under “software” key[CLOSE] [duplicate]

Possible Duplicate: How can I programmatically get the path of “Python.exe” used by ArcMap I am trying to get some information from registry about ArcGIS. I am using ArcGIS Desktop 10.0 and ...
4
votes
1answer
201 views

Why is the Frequency Tool in ArcGIS so Fast and Efficient?

Why is the Frequency tool in ArcGIS is so fast and efficient? Is it possible to make my own Frequency Tool with similar performance (in python)? I tried to do some based on python dictionary and ...
7
votes
2answers
413 views

How to create a solar intensity map for a garden plot?

I'm interested in creating a raster surface that depicts the average solar intensity per unit area for a small garden plot. I imagine the inputs into the model would be the following: Plot ...
5
votes
2answers
628 views

Using Custom Functions in a Python Toolbox

I am trying to put together a python toolbox (Arc 10.1) and would like to use a defined function in my code. The function is: 'sys' is imported at the top of the file def listdirs(folder): ...
4
votes
1answer
230 views

Ist there a way to calculate a Service Area from the Network Analyst in ArcGIS for each feature in a feature class?

I am trying to implement a python script that creates in a first step a Network Dataset and that in a second step gets a point feature class for which the tool should create for each feature in the ...
4
votes
1answer
359 views

Arcgis: Programmatically export to geotiff in different scales

I am totally new to ArcGis so please bear with me using the wrong terminology. I would like to programatically export geotiff files in different scales (e.g. 1:25000, 1:50000 etc) using arcgis10. ...
1
vote
1answer
1k views

Data Driven Pages and exporting PDF using Python

I am able to zoom into map_index shapefile rows for a group of mxd documents in layoutview and export zoomed record as a PDF document at the same time. I tried to combine below codes to make the ...
3
votes
3answers
393 views

ArcGIS Server 10.1 Python GP script shape as input parameter

I am writing a geoprocessing script that will need to accept a shape as an input parameter. This shape will be obtained by a user drawing the shape in a web application. The web application will ...
1
vote
1answer
286 views

arcpy JoinField_managment RuntimeError

So, I've been banging my head against the wall the last few days trying to figure out what's wrong with my script. It's suppose to pull weekly flu data from a department of health website, parse it ...
4
votes
1answer
140 views

How to stack rasters for ecological analysis?

The attached image shows two different forest openings. Each opening has the following layers associated with it: Point shapefile 1 = A red X which represent a large "legacy" tree in the gap Point ...
1
vote
1answer
692 views

Error code 500 at REST Endpoint of published geoprocessing service - Problem with output parameter type?

Using ArcGIS 10.1 (Server and Desktop) I've been trying to publish a geoprocessing service based on a python script I wrote. Of course, it all works flawlessly from ArcGIS Desktop but I run into all ...
4
votes
1answer
134 views

convert a dbf into a raster image using python? work around for arcpy

ArcGIS' arcpy does not have a function to add a table to a layout. I was thinking that maybe taking that table (e.g. a dbf), there may be some python script command to turn it into a raster (e.g. do ...
6
votes
2answers
322 views

How to parse serial date in ArcGIS?

I have imported a shapefile that contains a serial date number that looks like this: 41256.260799. I would like to create a new field that shows only the hour and second like this: 06:33. I've tried ...
5
votes
2answers
955 views

How to implement bivariate Ripley's K function in ArcGIS 10?

The attached image shows a forest gap with red pine represented as circles and white pine represented as crosses. I am interested in determining if there is a positive or negative association between ...
4
votes
3answers
192 views

Is it possible to run the address locator in ArcGIS via Python?

I have a question regarding the address locator in ArcGIS. It is possible to create an address locator by using Python, but is it also possible to run an address locator via Python? This means, is ...
2
votes
2answers
773 views

How to incorporate drop-down list within cells of shapefile attribute table using ArcGIS 10.0 or 10.1?

A question has been brought to my attention. When working with a shapefile within either 10 or 10.1. Is it possible to create a python script or some sort of programming language to accomplish this ...
3
votes
1answer
427 views

Zoom to Shapefile attribute table row feature

I am working with the python code below in ArcGIS to zoom into a shapefile's attribute table row features without selected until the end of table one by one. I am trying to use this code but this one ...