Tagged Questions
7
votes
1answer
82 views
Difference between python window and toolbox
Are there differences in performance or other potentially critical area between running a python script in the python window versus running it from the toolbox in ArcGIS 10.0?
I am asking in cases ...
10
votes
1answer
79 views
Watermarking photos using their geotag and create a shapefile
I have geotagged photographs and I would like to place a watermark of the photos location on the front for easy reference as well as creating a shapefile from the coordinates. Does anyone know of any ...
0
votes
0answers
65 views
python script to calculate and return values based on several conditions
I need to calculate and return the value "continuous" to those records in a polygon feature class with species records aggregated to a UTM grid
considering the attributes are species name, grid code, ...
1
vote
1answer
70 views
How to use CURRENT map document in Python 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 ...
3
votes
0answers
43 views
Accessing arcpy functions from IronPython
I made a few python scripts to automatically optimize and publish my data..
Now i'm thinking about writing a .NET program to manage and run these scripts: the obvious way is invoking them in a ...
0
votes
1answer
39 views
How to insert values from one table into another?
I am trying to write a script that iterates through each row of a table, calculates for this row something. The result of this calculation is finally stored in another table (with just one row). Now I ...
0
votes
1answer
29 views
Arcpy Network Analyst solver error
Hello GIS Stack Exchange,
I am finding it difficult to load locations to sublayers using python in ArcGIS 10.0 network analyst Vehicle routing problem.
I'm also having some trouble debugging my ...
0
votes
0answers
22 views
using python and arcpy , how can I compute the direction and angle of a line segment? [duplicate]
if start_point_x < end_point_x and start_point_y > end_point_y:
slope = ((end_point_y - start_point_y)/(end_point_x - start_point_x))
radian = math.atan(slope)
degrees = ...
0
votes
1answer
47 views
arcpy.setValue for Condition from Dictionary
Hi: I am trying to create a function to update multiple fields based on different criteria. I want to pass the field name and condition thru' a dictionary (please see the function description in the ...
1
vote
2answers
60 views
Set Extents of MXD to new layer data source?
Alright here I go again this forum has been good to me. I add a layer and replace its data with a shapefile I created using the following bit of python:
layer = ...
2
votes
1answer
69 views
Python script to update attributes crashing during loop
I have a script to update a field in one feature class from a selected record in another feature class. This is done through looping through records in one feature class selecting appropriate the ...
1
vote
1answer
56 views
Setting More Than One Workspace
I have a number of tables that contain known values in a field. For example, I have a soil type table with one field in it. That field contains a list of known soil types. I have another table that ...
1
vote
1answer
47 views
Need python code example - setting a combo listbox to Null
I want to be able to set the value of a field to Null using python, but I get an error.
I am using arcpy.CalculateField_management
Any help would be appreciated.
Rob Smith
6
votes
2answers
96 views
Refresh open attribute table in ArcMap (arcpy)
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 ...
1
vote
1answer
79 views
Search cursor stops selecting after two iterations
I have a script which selects an extent from a grid and exports the data frame.
import os, arcpy
mxd = arcpy.mapping.MapDocument('CURRENT')
df = arcpy.mapping.ListDataFrames(mxd,"Layers")[0]
...
4
votes
1answer
44 views
Using matplotlib to create and export graphs automatically from ArcMap
I am going to start a project soon where, after the data has been processed in various ways, an output jpg showing a graph of the data should be produced. The workflow is as follows:
1. A feature ...
1
vote
0answers
25 views
Problems running zonal statistics - not all zones represented
I have been working on a Python script to automate the steps illustrated by whuber here:Create points around the edge of viewshed results
I am trying to create a horizon graph illustrating the ...
2
votes
1answer
63 views
How to write point geometries with arcpy instead of gp syntax?
Can someone help me fix some code that simply writes points into a featureclass? It used to work in the older gp. syntax, but I'm having difficulties rewriting it in arcpy for ArcGIS 10.0. In this ...
1
vote
2answers
63 views
How to Add Shapefile with Symbology from Layer File to ArcMap MXD using ArcPy/Python?
Say I have a Shapefile:
C:\DATA\points.shp
A layer file:
C:\SYMBOLOGY\symbology.lyr
And a map document:
C:\MAPS\map.mxd
How can I add points.shp to map.mxd with the properties of symbology.lyr ...
3
votes
1answer
54 views
Why is my simple arcpy script failing? (sets raster cell value to null if below threshold value, ArcGIS 10.1)
As mentioned in the title, simple script to set null cell values below three standard deviations beyond the mean:
import arcpy, sys, os
#Accept input and output raster
inRas = sys.argv[1]
outRas = ...
2
votes
2answers
87 views
Help with Python and adding a grouplayer to arc, renaming it from a folder name, then adding layers to it from that folder
I am trying to use os.walk to go through a directory tree, pull out all the .shp files in it, create a grouplayer in the mxd, rename the grouplayer the folder name, then add the layers from that ...
1
vote
1answer
59 views
A simple Python Script to save the currently opened mxd and changes
Here is what I have so far...
import arcpy
import arcpy.mapping as map
mxd = map.MapDocument()
mxd.save()
And yes I know that map.MapDocument requires an argument, but I want it to automatically ...
1
vote
0answers
70 views
How to embed a PDF into an Excel spreadsheet? [closed]
This is what I want to do:
Create report using a polygon feature class to output areas of polygons using some logic and the ExportReport() function (This I have accomplished)
Create a PDF of the ...
2
votes
1answer
45 views
How can I set the settings of an Address Locator within a Model or arcpy?
I am creating a model that processes a large road dataset, then creates an address locator from the roads. The Create Address Locator tool does not allow me to set options like Spelling Sensitivity or ...
1
vote
1answer
54 views
How to get an attribute of the selected feature and pass it into a URL?
As a total Novice with Python, I thought 2 weeks would be enough time to learn how to build some tools for our GIS... I was wrong and I'm running up on a deadline.
I am attempting to get a value ...
0
votes
1answer
32 views
How to Average neighboring county data and store in original?
I have data for several rain stations, i have averaged the data and given each county a value. Some counties have null values and I would like to pull the data from the all the bordering counties and ...
-3
votes
2answers
83 views
What does Runtime error : 'NoneType' object has no attribute '<field_name>' mean?
Here is my code
#arcpy
import arcpy,sys
from arcpy import env
env=r"C:\Users\Jaya\Desktop\python_practice"
totalRec=arcpy.GetCount_management("river")
rows=arcpy.SearchCursor("river")
...
1
vote
1answer
40 views
Append to rather than overwrite to a single table in arcpy
The code thus far works to create multiple output files, but I'd like to set it up so that the data is all exported onto a single table across multiple rows. The issue is I believe with the part in ...
3
votes
2answers
115 views
Csv to Shp conversion? [duplicate]
I am working on a really big script right now where I have a csv file that I have removed rows and columns from, and edited the headers. I need to create one big shapefile for the entire csv file then ...
0
votes
1answer
53 views
Error: Exception Raised on the “for row in rows” command line?
I am comparing fields in layers. I have the AADT layer and AADTAnno layer and I want it to search the fields FLAG and TFLAG. For Example: If there is a 29C9 in AADT layer in FLAG fields then there ...
4
votes
1answer
58 views
Switching between background 64 bit processing and 32 (so I can use 3rd party ie XTools)
I often run scripts now with 64 bit background processing enabled but when I want to use certain tools like Xtools table to text I have to turn it off as these tools are 32 bit. Is there a way to ...
5
votes
1answer
129 views
ModelBuilder: How to extract data by date, export to separate tables and interpolate tables to rasters
I've been using ArcGIS for a couple years, but when it comes to model builder I've only worked with very simple models. I'm hoping someone that is much smarter than myself can help me in building a ...
1
vote
0answers
56 views
Calculate Field using Esri Python Addin
I am trying to select a polygon then it must automatically change (calculate) the status to "C". The tool seems to work in the background but nothing actually happens (the status is not updated). I ...
3
votes
3answers
141 views
How to convert geometry to WKT using ArcPy?
I would like to be able to convert a single feature (or potentially many features) in an ArcGIS layer into Well Known Text (WKT) format during a geoprocessing operation using Python and ArcPy (no ...
2
votes
1answer
37 views
ECWs missing when exporting MXD to PDF with arcpy
I'm trying to export some MXD maps to PDF with arcpy (ArcGIS 10.1). Everything works fine and dandy except for ECW images, which don't appear in the PDF. However, when I execute the same code from the ...
1
vote
1answer
49 views
Query and display a layer using arcgis script tool
I have database which contains point shapefiles and raster files for 3 species.
My aim is to develop a script tool that should have a search tab to enter the species name.
also, a check box to select ...
2
votes
1answer
69 views
How come “Zoom to Polygon” always puts me in the middle of Nebraska?
This is an issue related to this question I'd asked a few days ago. I've got that code working, to an extent. Every time, though, that I double click on one of the Polygons in the attribute table that ...
0
votes
1answer
81 views
ArcGis 10 - Field Calulator - Python - Synthax Question
I want to calculate a field, this is my working example in VB:
"C:\Users\Admin\Desktop\Data\" & !Work! & "\1000_\" & !Data! & ".pdf"
I'm slowly changing all my scripts to Python, ...
1
vote
2answers
48 views
ArcPy- AddJoin-function struggles using Table of PersonalGeodatabase
Hey,
I am doing some arcpy -functions and afterwards I'm trying to add the calculated results from one table to another table. I'm using the arcpy.AddJoin_management() function.
As input table I'm ...
0
votes
1answer
87 views
Where Clause problems when all parts are user input variables
I have written some generic user ipnut code for a toolbox script (ArcGIS 10.0) but because everything is a variable I don't know how to write the SQL whereclause.
Please can someone help and suggest ...
2
votes
1answer
108 views
Error 999998 in Arcpy 10.1
I found an RuntimeError: ERROR 999998: Unexpected Error when lunching Arcpy in my ArcGis 10.1 such as this:
Runtime error
Traceback (most recent call last):
File "", line 50, in
File ...
1
vote
0answers
84 views
How to transfer the attributes of features based on their spatial relationship?
I'd like to check if a point feature class is placed on a line feature using python in ArcGIS 10.0. I have created a set of point features and placed them directly on a group of line features at ...
4
votes
2answers
90 views
Moran's I z-score in ArcPy
I have a ArcPy script to calculate Moran's I several times (50 to be precise). However, I am not interested in the Moran's I value, what I need is the z-score returned by the tool. Even though the ...
3
votes
1answer
64 views
How to return text from GP service?
So I've got a website that I want to extend by letting people look up postal/zip codes for an address they enter. I've already got all the addresses (with their postal codes) for the city in an ...
1
vote
2answers
83 views
Possible to add multiple fields in single arcpy statement?
I'm trying to add multiple fields to a table using arcpy and am wondering if it's possible to have multiple fields declared in the AddField management, and their values, separated by commas or ...
2
votes
3answers
114 views
SearchCursor() fails to read feature class
First of all, I would like to apologize if this problem is trivial for you guys since I am very new to ArcPy and Python in general. I want write a script to read attribute table from a feature class ...
11
votes
1answer
314 views
Teaching Python to Land Surveyors
Does anyone have any good examples of using Python to automate or simplify common surveying tasks?
I'm teaching a Python/ArcPy lab this week for a GIS class. There are a number of surveying ...
12
votes
1answer
228 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 ...
-1
votes
1answer
96 views
How to write Process Dialog log information to a text file in ArcGIS?
I have created a custom model. When this model is run, it shows a process dialog which has some log information. I want to write that log information into the text file for further analysis. Does ...
2
votes
1answer
62 views
Calculate field result is float with Arc tool, integer with arcpy script
I am trying to calculate a field for some points within a python script using arcpy functions. (This is calculating the percentage visibility from a cumulative viewshed, if that matters.)
# Process: ...
