A site-package created by Esri to expose many ArcObjects to Python.

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1
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0answers
330 views

Need help using FieldMappings object with Append_management in Python [closed]

I have a fairly large script that I'm reworking. The script is manipulating tables with 50 or so fields. (I will be cleaning some of these up to reduce the number.) Toward the end of my script I call ...
0
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2answers
279 views

Python Delete point in a distance of x meters

I took this code from this source Select maximum number of points more than x meters apart It seems to work for other users, but for me it's an endless loop. I do not understand why, though the code ...
0
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1answer
884 views

Label Features with Arcpy

I had run the contour tool in my script to generate polylines. Contour("rectExtract", "C:/fakepath/Class1.shp", 50,0) Now I want to label the polylines with the contour-value. If I execute this ...
0
votes
1answer
62 views

Editing symbology of contourlines with Arcpy

I just have a problem with my pythonscript. I had run the Contour-tool to generate polylines. Contour("rectExtract", "C:/fakepath/Class10.shp", 20,0) Now i want to mark the 100 meter lines in ...
6
votes
3answers
2k views

How to copy an SDE geodatabase to a file geodatabase using Python?

I would like to make an exact copy (domains, feature datasets, feature classes, etc.) of an SDE database to a file geodatabase. I have tried several possibilities, including: using the Copy (Data ...
3
votes
0answers
2k views

How to rotate and move polygons to different angles using ModelBuilder (or ArcPy)?

I have a few thousand polygons (all square) that I need to rotate to various angles that are in the attribute table, and then move so that each polygon gets moved 3/4 up from the original centroid, ...
2
votes
2answers
675 views

How to edit (particularly flip direction of) polyline obtained through UpdateCursor?

I want to flip the direction of a polyline feature obtained as a result of an Update query; e.g. lines= arcpy.UpdateCursor(myFeatureClass,myQuery) dsc= arcpy.Describe(myFeatureClass) try: for ln ...
0
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2answers
193 views

How to limit/page through results from ArcGIS SearchCursor?

I would like to get for example, the first 200 rows from a database by ArcGIS Python SearchCursor. How can I do that? I've got a featureclass which has about 500k features and reading it all in one ...
2
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1answer
178 views

Using Sum() or something similar with CalculateField_management and FieldLists

I need some help with using variables with CalculateField_management tool. I've tried several different scenarios but don't seem to have any luck. What I have is a list of fields containing water ...
1
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1answer
691 views

ArcMap Crashes because of increasing memory usage

Hi I have this code and I tried to delete all the layers it creates to enhance it's performance...However ArcMap crashes after about 200+ files. I am new to the subject but I checked the internet for ...
0
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1answer
287 views

ArcGIS Python Script Buffer [duplicate]

I have a problem, I'm trying to create a buffer as part of a code but I keep getting the following error: ExecuteError: Failed to execute. Parameters are not valid. ERROR 000735: Distance [value or ...
0
votes
1answer
273 views

How to set coordinate system on raster catalog with arcpy?

When creating a raster catalog, if the optional coordinate system fields for the raster and geometry columns are left empty, they will be stored as unknown. What geoprocessing functions in arcpy ...
2
votes
1answer
621 views

Trouble formatting SQL expression for where clause in “Search layer by attribute” arcpy function

I am trying to pass a variable into a where clause in the "Search Layer by Attribute" arcpy function. I cannot seem to figure out the correct format for the SQL expression so that the function reads ...
1
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2answers
1k views

Python code does not work with RasterCalculator after exported from Model Builder

I have a model authored in Model Builder that uses "RasterCalculator" to process input raster datasets. arcpy.gp.RasterCalculator_sa("OutRas = Con(\"%STATIC_forestland%\" == 0, -255, ...
0
votes
1answer
477 views

ArcPy Create Point Along Line A Specified Distance From A Specified Point

In ArcGIS Basic I am trying to take a road polyline(one segment for the entire length of road) and get a point placed on the map a specified distance from an intersection. I have a layer of ...
0
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2answers
513 views

Help writing script using a shapefile - select by attribute

I am trying to take an existing shapefile and narrow down the attributes using the 'select by attribute' The problem I am trying to solve is: Find parcels that have an acreage >= 100. The code I ...
1
vote
1answer
621 views

How to list raster bands?

I am interested in looping through a directory and listing only the red bands (Band 1) from 4-band NAIP imagery. From there I would like to mosaic all of the band 1 layers into a new single band ...
2
votes
0answers
172 views

Call ArcPy script via CGI on IIS

I have an ArcPy script that does a whole bunch of processes with ArcGIS 10.1 to write the output data to a SDE geodatabase. What I want to achieve is to enable an online user to call the script and ...
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votes
1answer
157 views

How to create a polyline feature from a point layer

I would like to create a route line based on a point layer. The existing tool does not meet the customer requirement. But using the code snippet below, the start point and end point are always the ...
2
votes
2answers
1k views

How to set linear units for Buffer distance from arcpy.GetParametersAsText()?

I am trying to run a buffer tool as part of script that I will both use as a standalone script and import into ArcToolbox. I'm just wondering, if I use GetParametersAsText for the buffer distance, how ...
5
votes
1answer
1k views

How to arcpy.Describe() a layer when script is run from outside of ArcMap?

The following code will work if I run it from the ArcMap Python dialog, or from a GP tool, but not from PyScripter IDE: import arcpy mxd = ...
1
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1answer
88 views

How to create point features from 1-Many relationship?

I have an address point shapefile for buildings in a city. The point shapefile shows only a single point for each building; apartments are listed in a table called additional addresses. I need to ...
0
votes
1answer
107 views

Help with Point on Polygon overlay in ArcPy

I am trying to do this simple task but not sure how to do this in Python. I have a point shapefile and I want to overlay with polygon layer to get all the polygons for each point. After this would ...
7
votes
5answers
709 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, ...
1
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1answer
56 views

ArcMap ArcPy - Place signs with no lat/lng on map

I'm new to ArcPy and ArcMap but I do have programming experience. What I am trying to accomplish is to take over 22,000 signs from a database and place them on a map in reference to a street layer ...
0
votes
1answer
112 views

OD Cost Matrix Settings (Arcpy)

I have what is hopefully a fairly simple question. I am trying to run an OD cost matrix for every minute of a day for research I am performing. All of the settings will be the same for each run, ...
1
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1answer
831 views

Creating a layer after using SelectLayerByAttribute_management

Is it possible to use an existent layer to do a selection by attributes without having to use MakeFeatureLayer_management first? Because I already have a layer with the same name as the feature class ...
5
votes
1answer
394 views

Can ArcPy 10.1 be used to generate true curve elliptical polygons in a file geodatabase?

As background, this question arose from trying to answer a question on How to generate overlapping polygons from lines output from Table To Ellipse tool? Using the ArcMap GUI it is very easy to ...
4
votes
1answer
274 views

How to generate overlapping polygons from lines output from Table To Ellipse tool?

I have a feature class of line-based ellipses generated by the Table to Ellipse tool that looks like this: What I want is polygons of the individual ellipses, however tools like Feature to Polygon ...
3
votes
2answers
1k views

Python Search cursor: Error handling

I have a search cursor that using a SQL query to match addresses and then returns the associated roll number with that address. However, some addresses do not match the roll number and then I believe ...
2
votes
2answers
769 views

Clip_management to raster extent outputs larger raster than raster extent

Using Python and ArcMap 10.0 SP5, I'm trying to reproject and clip a large input raster to exactly the same grid as a smaller target raster (same extent, pixel sizes and projection). The problem is ...
-1
votes
1answer
510 views

How to calculate the length of clipped lines using buffered points using ArcPy? [closed]

I need to create a buffer around each point of a points feature class. I would then want to use the point buffers to clip the streets feature class to calculate the length of the clipped streets using ...
1
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3answers
402 views

How to place points along a line in a specific offset using python / arcpy?

I have a street shapefile with information about the street name, house number from / to on the left side and house number from / to on the right side. My aim is to create a point shapefile that ...
0
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0answers
37 views

How to use na.Solve() on layers already created?

I am fairly new to arcpy and I am having troubles recreating the following set of instructions with a python script. Open the KeyChainTest.mxd Enable the Network Analyst extension. Click solve on ...
0
votes
1answer
256 views

In Arcpy, Erase function error: “XML being loaded could not be parsed”

Here we go! A error in my previously-smooth-running arcpy script has me confounded. The error occurs where the script selects individual features in two different feature classes, and then performs ...
1
vote
1answer
157 views

Python: Grabbing X,Y coordinate from matching fields

Here is my table. What I am trying to do is write a python script to go over the Zip_Crid values. If there are matching values, I need to grab x1, y1, x2, y2 and put it in a new field. Haven't ...
6
votes
1answer
529 views

ArcGIS Desktop 10.1 SP1: how to install/use additional Python modules?

I'm currently working on a project where I have to identify geomorphological features in a digital elevation model. Since the aim is to have a single ArcGIS Toolbox integrating all processing steps in ...
2
votes
3answers
211 views

Software needed to recreate VBA forms using python for Arc 10.0

I'm new to programming and need to convert VBA scripted tools for the 10.1 upgrade. I need to recreate the forms and use Python scripting. How do I do this? I need the form to function in 10 ...
0
votes
1answer
49 views

ArcPy space in textfield [closed]

I got a tiny script: def calc(value): if value is '123': return 'ok' elif value is '12 3': return 'not_ok' else: return value if the value is without spaces it works perfectly, but ...
1
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0answers
77 views

Insert last coordinates from a list of coordinates with line ID into a multipart polyline feature class

I'm having problems creating the last line from a list of coordinates that I have. I have a text file with coordinate data with a X, Y, and a Line ID (LID). I read the file and inserted each ...
1
vote
1answer
287 views

Batch Aggregate Raster using Python

Trying to write a python script to batch Aggregate a bunch of different rasters. get a Parsing Error Syntax error for line 11. # Batch Aggregate raster tool import arcpy from arcpy import env from ...
0
votes
1answer
1k views

Why does AddField give ERROR: 000732 Input Table: does not exist or is not supported?

I was handed off a a bunch of state shape files and wrote a script to add a few new fields and calculate some attributes. The first line in my script is - ...
6
votes
6answers
4k views

How to move / offset point locations using ModelBuilder or ArcPy

I have a number non-georeferenced CAD layers (see this question) that have text annotation features. I have created a model to convert the text to points, but after converting the annotation to a ...
4
votes
1answer
301 views

extend line to feature. programatically

Thanks in advance for any help. I'm trying to programmatically extend hundreds of lines (blue in image) to a single polyline feature (red in image). Sometimes the lines intersect each other, but I'd ...
2
votes
1answer
279 views

Using update cursor on a field with a domain

I have been replacing field calculations with python update cursors in many of my work flows and today I ran into a problem. The fields being updated have an attribute domain. so now, when I ...
2
votes
2answers
161 views

Determine ArcCatalog's currrently selected folder using Python

Is there a way to get the current directory opened in ArcCatalog 10.0 using Python? Something like os.getcwd() but instead gives the selected folder on the catalog tree. Cheers
0
votes
1answer
251 views

Why does script exported from ModelBuilder give ERROR 000733 at SelectByLocation?

I created a model in ModeBbuilder, and I exported the model as a script, but when I try to run it I get the following error. I have added my error below and the code below that. Thanks for any help. ...
1
vote
1answer
135 views

How do I change the isNullable property for a field?

Once in awhile I encounter a field in my featureclasses that have their isNullable property set to No. Is there a simple way using python to correct this? I came up with this code, but ...
1
vote
1answer
124 views

arcpy selectByLocation

EDIT: OK, added two lines to the code below including a projectAs(). When I start my mxd and run this code it selects a polygon. However, if I then pan to a new location - still within the bounds of ...
0
votes
3answers
350 views

Why does CalculateField set values to <Null> when output extent is in a different coordinate system?

I'm quite new to ArcGIS, and now I have to work on a script that goes through a list of feature classes to: add a field to their attribute table and fill that field with a number that I retrieve ...