Python is an open source interpreted programming language used in many GIS programs.

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Cannot get arcpy.MosiacToNewRaster to work with list

Below I have a snippet of a much larger code that I cannot get to work and I am not sure why. It seems that I always have trouble using arcpy functions with rasters. Can anyone help me get this code ...
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224 views

Setting Script Tool Parameters Using Python and ArcGIS 9.3.1

Can't quite figure this out and i'm sure it's a simple fix. I have a script that utilizes the AGSSOM tool. It first stops all published services, allows for databases to be tidied up by ...
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1answer
212 views

Grid labels in ArcGIS, overlapping issues

I do have 3 grids made by Grids menu in data frame properties. I do need them to display in certain layout and also to behave accordingly to couple of rules (overlapping issues), so I can automate my ...
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1answer
302 views

installing module in embeded python in qgis

I'm newbie to Quantum GIS and Python. I'm using QGIS in windows platform. How I can install module for python embedded in QGIS? Also, how can I run embedded python from windows directly? Thanks
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1answer
255 views

ReportLab integration into QGIS returns error message “no module named reportlab”

I want to use ReportLab in my own plugin which I have written for QGIS. I have installed ReportLab for the python versions 2.4, 2.5 and 2.6. The package is respectively installed into the ...
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2answers
682 views

Arcpy Error in adding input field to field map

hi guys i m doing a script in Arcgis i m new to this, i have to append some field from a table to another, i did this script in python but i have a problem when it want make the Mapping field with a ...
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1answer
112 views

Selection on Feature layer (geoprocessing)

I have a feature layers with states and counties fields. I want to make a selection tool. Tool dialog should have input for feature layer and two drop downboxes for states and counties. When user ...
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1answer
481 views

Applying layer file not formating labels in ARCGIS 10

I'm applying layer files in ARCGIS 10 using the ApplySymbologyFromLayer_management command via a python script tool. The symbology part works fine but the lables are not formatting. It is my ...
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2answers
171 views

Toggle editing option in plugins

I am working on python plugins for QGIS.I developed the plugins same as RT SQL LAYER plugins. When we draw the layers using query builder of "Add Postgis Layer" option,toggle editing option is ...
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1answer
79 views

Filegeodatabase fanout and Python problem

I have fme wb which does fanout with gdb. It means that in the end as output sets of data I get few new created gdb. But If I start this fme wb within python script It does not do fanout. Just write ...
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1answer
202 views

Using Python in Arcmap to partition strings [closed]

I have a title "Text that remains Proposed Thing to replace" var_a = New Text I want the output to be "Text that remains Proposed New text" Currently outputs this "(u'Text that ...
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2answers
793 views

How to connect the selectionChanged signal with pyqt?

Hi I am developing a plugin for Qgis in python, I need to connect the sselectionChanged signal emitted when a feature of the layer is selected, I could not find any examples on internet, here is what ...
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3answers
2k views

Error when creating insert cursor in arcpy

I've written several scripts that copy data from MS Access db into a new, empty ESRI Geodatabase. I've pretty much copied the code and changed it for each table -- the first two scripts have worked ...
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1answer
899 views

How to create multipart line and polygon with interior ring in ArcGIS Python?

My objective is to swap X,Y coordinates of feature classes using Python and arcgisscripting. Based on help examples, I managed to write script which reads and writes all geometry types. The problem ...
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1answer
430 views

Administrative level and coordinates from Yahoo GeoPlanet WOEID

The Yahoo GeoPlanet data can be freely downloaded from: http://developer.yahoo.com/geo/geoplanet/data/. If I understand it correctly, each WOEID corresponds to a unique location on earth, with ...
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1answer
390 views

Passing parameters to PostGIS SQL queries in Python: weird behaviour

The following code always goes to the except section and I do not understand why..Any help would be much appreciated. l = None c = conn.cursor() try: s = "SELECT ST_NPoints(ST_GeomFromText(%s))" ...
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1answer
5k views

Python :ImportError: DLL load failed: The specified module could not be found

I am working on Python plugins for QGIS. I set my variables as PATH :=C:\OSGeo4W\apps\qgis;%PATH% PYTHONPATH:=C:\OSGeo4W\apps\qgis\python But when I try to run my .py file in IDLE I get an error ...
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216 views

GDAL Tiling, Missing Tiles

i have used gdal2tiles.py for tiling about 100 tiff tiles which i have generated virtual dataset with gdalbuildvrt for my 1:250.000 scaled maps... everything goes well from 15 to 11, but when it ...
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444 views

Python Mapscript 6.0.1 layer.getShape API

I am attempting to follow the mapscript example described here - http://trac.osgeo.org/mapserver/wiki/RasterQuery but ran into some trouble with s = layer.getShape(result.shapeindex, ...
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1answer
2k views

Using the arcpy.UpdateCursor to delete rows doesn't delete based on counter

I am trying to delete rows from a shapefile using arcpy.UpdateCursor. The first thing I did was get a unique list of values from the key field "PolyGUID", then I iterate that list doing a ...
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2answers
573 views

Join/Relate in ArcGIS 9.3.1 ArcEditor through a python script - is it possible?

I'm working on a ArcGIS 9.3.1 ArcEditor and I want to write a python script that will do a Join or Relate. Problem is, that join table\join field are restricted to ARCINFO (higher license), and relate ...
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2answers
834 views

Automate creating Rectified files from georeferenced images

A python 2.6.5 / ArcGIS 10 solution is preferred. UPDATE: I found a tool to do this "Create Ortho Corrected Raster Dataset" but the python script for it gives errors when I try. import arcpy import ...
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1answer
461 views

Win7 GRASS 7 & i.landsat.toar

Hello has anyone got experience running i.landsat.toar ? The output files I get are empty, the command takes but a moment to complete. However when run in verbose mode all the calculations are done, ...
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2answers
2k views

How do I programmatically update/recreate an ArcSDE feature class from external sql data?

I have an ArcSDE feature class that contains project points based on xy data from an external SQL databaes. (Not a geodb). I am looking for the best way to "recreate" the ArcSDE feature class from the ...
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1answer
265 views

Can you access ArcScan from a python script?

I'm using a python script with ArcPy in ArcGIS 10, and want to access some ArcScan functions. Is this possible? I can't see anything in the documentation about it, but I can't really find any very ...
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520 views

ArcObjects table views or sqlite3 in Python?

Given a larger csv (1000+ points) with attributes, I need to do both attrbute and spatial queries on the data. Would it be faster to read the points into an xy feature class, and do the spatial and ...
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1answer
10 views

reproject vector layer with pyqgis with new CRS does not worl

In QGIS I am running a script in th python toolbar to export all visible vector layers to a GEOJSON with this snippet: canvas = qgis.utils.iface.mapCanvas() allLayers = canvas.layers() for i in ...
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1answer
23 views

ArcGIS10.2 Data Merge error: 000732

I am running python in the ArcGIS python window. ArcGIS shows error message when trying data merge from arcpy. File "", line 1, in File "c:\program files ...
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2answers
25 views

Keep leading zeros when converting .txt into dbf using CopyRows management

I am writing a python code in order to bring my.txt file into a dbf file in arcgis. I am using CopyRows_management which seemed to be working just fine until I realized that one of the 40 fields from ...
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1answer
39 views

Problem with Intersect_Analysis : too long path? [closed]

I made a python code for Arcgis 9.3. to intersect 2 features. The problem is that code works when the files are on my desktop (for example) but not when they are in a long path on another disc. Here ...
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1answer
36 views

Split Large GeoTIFF to smaller regions with python and gdal

I have quite a large GeoTIFF-file (compressed 50MB but unpacked 6GB) and want to split it into several smaller regional files. Therefor I am using python. As I am a new gdal user I do not really have ...
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1answer
76 views

Null value error with Python in field calculator

I'm trying to calculate the angle between two line segments in ArcMap 10.0. I have a point shapefile, so I'm using the xy coordinates of 3 successive points to calculate the angle. I'm trying to use ...
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1answer
61 views

Using 'construct points' on all lines in a shapefile (arcpy)

I need to use the editing tool 'Construct Points' on several shapefiles that each have ~1300 polylines. I need to do this to create points every 1km along each of the polylines, which represent the ...
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2answers
101 views

How to extract X Y coordinates and RGB from pixels using python in QGIS?

I'm trying to white a Python plugin in QGIS (2.2) to get, for each pixel of a raster image, its X Y coordinates, as well as, its RGB (3 bands) values. At first I opened the raster file using: rlayer ...
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1answer
33 views

Tick boxes for a qgis plugin written in python

in a python plugin for qgis I want the user to be able to select one or more of several options via tick boxes. I imagine it to look like e.g. Qgis 2.2 tool "Vector" -> "Data Management Tools" -> ...
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53 views

ArcServer 10.1- Get Original Document location (mxd) from published web service using python

I need to extract the document location of a published web service. Is there any way this can be accomplished in python? I know where the maps are sitting on the server, and i know the name of the ...
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1answer
55 views

Python package for processing GRIB data in windows

I would like to know what python packages can be used to process GRIB (Gridded Binary) data on a Windows system. I know there is something called pygrib, but to use that I have to use cygwin windows ...
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1answer
39 views

How to “Apply Edits” to an ArcGIS Server edit session using Python

ArcGIS Server allows the user to apply edits in an editable layer. Eg the sample layer at http://sampleserver6.arcgisonline.com/arcgis/rest/services/Military/FeatureServer/3/applyEdits will accept a ...
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1answer
117 views

Problem creating point shapefiles programmatically using python in QGIS 2.2

I am trying to create a point shapefile in the memory buffer (for a temporary label) and then zoom to the extents on this buffer. The working (in version 2.1) test code for this is: def ...
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1answer
40 views

If Then Modelbuilder, Project error

I have a model where I want to check the projection. If it is GCS_WGS_1984, I want it to go one path, and if it isn't, I want it to go another path. I created a "Check Coordinates of Input" script ...
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1answer
61 views

Precondition in Modelbuilder - use in next process

In modelbuilder I am trying to create a tool which will check the coordinate system of the input shapefile. If it is GCS_WGS_1984, then nothing happens. If it is not, then it will reproject it to ...
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1answer
27 views

How can I pan an ArcGIS map from an external application?

I have a web application with geocoded addresses. I would like to be able to click on an address within that application, and have ArcMap 10 respond by panning the map to the corresponding location. ...
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1answer
72 views

How to export Raster to JPEG in Python?

I built a model to import table data, create xy event, kernel density and clip density raster. I would like to export the clipped raster as a JPEG but I am not sure how to write the ExportToJPEG code. ...
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1answer
44 views

How to automatically add identical new polygons to a layer?

I am seeking a way, using QGIS, to automatically add polygon features identical to others on the layer. In this case, they are water valves on a water network. Anyone know of a user-friendly way to ...
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1answer
66 views

Python scripts of GRASS in QGIS 2.0

I want to use v.kriger from GRASS through sextante QGIS 2.0, but this command is not here. But I find, in C:\OSGeo4W\apps\grass\grass-7.0.svn\scripts, the command as a python script. How can I use ...
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1answer
47 views

How can i change vertex option programmatically using python in QGis?

I want to activate the option "Show markers only for selected features" in Setting-> options->vertex markers ,using python. does anyone know if i can do it programmatically ? i attached a photo of the ...
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2answers
63 views

Get the vertices on a LineString either side of a Point

I have a shapely LineString and defined a shapely Point which lies along the LineString. How can I find the vertices of the LineString which lie either side of the point? (split the line in two). ...
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1answer
96 views

Python ogr2ogr language character encoding

In python script i'm exporting .shp files to .csv/.gpx/.kml import ogr, ogr2ogr ... ogr2ogr.main(["","-f", "CSV", csvfile, shpfile, "-lco", "GEOMETRY=AS_WKT", "-lco", "SEPARATOR=SEMICOLON"]) ...
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1answer
190 views

How to use PyQGIS ( Python QGIS API ) to open/close Update Drawing Order checkbox in QGIS2's Layers (Legend Interface)

Thanks qgis 2, the Legend Interface (layers dockwidget) now has Update Drawing Order check box on right-click mouse context menu. I think this feature can let user temporally closes rendering, then ...
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1answer
139 views

Why does copying ArcSDE datasets and features in Python give ERROR 000732 & 000735?

Go easy, I'm new to python I keep getting a kick back that says this: ERROR 000732: Input Features: Dataset 'Database Connections\Wyoming.sde\Supporting_MT_DBO_Geology' does not exist or is not ...