Geoprocessing is a GIS operation used to manipulate GIS data. If you are performing geoprocessing using ArcGIS then the tag Geoprocessing-framework is specific to that software and should be used instead.

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How do I get statistics out of a table using Python in Arc 10?

I am very new to programming (I started learning this semester) and would very much appreciate helop with one piece of a project. I have the following table, and I need to write a script compatible ...
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1answer
184 views

Efficiently classify raster with irregular polygons

I have a project on my desk to classify an elevation model using different elevation breaks for each polygon in the area of interest. In pseudo code: FOR each polygon IN layer: CREATE_MASK FROM ...
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1answer
1k views

ArcGIS License - ArcInfo level license set during python script execution vs via Desktop Administrator

We have an ArcInfo floating license available. Can I check out an ArcInfo level license via arcpy. Here, from the arcgis help, it says you can import a license level for stand-alone scripts. If a ...
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2answers
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Extracting elevation from a TIN file with a point shapefile overlay

I have a TIN file that was built off of contour polyline shapefile (I think). I have a point shapfile with a few points. How can I extract elevation of the TIN file where the points occur? I am ...
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1answer
349 views

Passing reclassification values to the Reclassify tool in Model Builder in ArcGIS 10

There is a set of point features that fall within polygon features, and I want these polygon features (after converting them to raster) reclassified based on how many point features fall in them. If ...
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1answer
222 views

One large polygon or many little ones. What is better regarding performance?

I´m designing a geoprocessing service on ArcGIS Server using several nationwide datasets. Currently I´m preparing some of the datasets and I´m wondering if I should dissolve my polygon layers ...
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1answer
150 views

Progress bar percentage is increasing and decreasing, never finishing

I am trying to clip a raster by shapefile perimeter using the Clip tool. The percentage has been jumping between 0% and 100% for over an hour, back and forth, climbing to 100% then dropping down to ...
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1answer
548 views

Does CopyFeatures from in_memory via Python script tool cause General function failure for you?

The Python code below looks pretty straightforward. import arcpy if arcpy.Exists("D:/temp/test.gdb"): arcpy.Delete_management("D:/temp/test.gdb") if arcpy.Exists("in_memory"): ...
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1answer
2k views

Explode MULTILINESTRING into individual segments in PostGIS 1.5

I have a MULTILINESTRING in PostGIS consisting of several LINESTRING's. Consider each LINESTRING to have a set of POINT's P1, P2, ... PN forming the line segments L1, L2, ... LN-1 where ...
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640 views

How to remove small polygons in ArcGIS 10 using extension by Gonza2?

Does anybody have experience and success working with the Remove small polygons from a feature class script tool by Gonza2 in ArcGIS 10? The extension works perfectly in previous version of ArcGIS ...
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1answer
312 views

How to update raster or feature layers being used by ArcGIS Server by a Model

I have a mxd file that contains a few raster and feature layers that was published by ArcGIS Server as a map service. Meanwhile, a model was created to update the contents of the raster and feature ...
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465 views

Large point to Polygon by buffer-join-buffer-dissolve issues

I have a few large datasets (about 10 million points) which I am buffering, then joining, dowgrading and finally buffering and dissolving. This is all in a model which works fine with sample smaller ...
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9answers
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How to easily shift all features in a vector dataset?

Let's say that I put together a Shapefile and all the features have their vertices shifted by a constant amount. What's the easiest way of shifting all the features (hence the (x,y) position of their ...
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3answers
2k views

Geoprocessing with ArcGIS Server 10.0 - %scratchworkspace%

http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#/Key_concepts_for_geoprocessing_services/002v00000002000000/ I'm trying to have a new GP Service arcpy.AddMessage() the scratchworkspace ...
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2answers
410 views

Tables in ArcMap 10.0 - are they layers or tableviews

Is a table in ArcMap a layer or a tableview. I want to be able to feed a table into an UpdateCursor via a toolbox script. If my table has a definition query on it how do I check for that with ...
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2answers
938 views

Geoprocessing ArcGIS 10: Sending lat/long/elevation data to a geoprocessing service

I have a silverlight application that allows the user to select points to make a polyline. The polyline is densified per the users input (say every two feet). The new points are sent to an esri ...
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3answers
498 views

How not to Copy Features when too many would be output?

This question has already been posed to the ArcGIS Geoprocessing forum but I have had no responses there. I have a 3.5 million polygon layer (cadastre) stored in Oracle via ArcSDE. I use a polygon ...
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1answer
708 views

Can Spatial Joins be used to perform One-to-Many Closest joins?

My situation appears rather simple, but it has given me headaches more than once already. I have a set of points and a set of polylines. I would like to use a spatial join to join the attributes of ...
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1answer
383 views

How to divide a polyline by intersecting isochrones

I have two shapefiles, the first representing a path (a polyline with a single category), the second representing isochrons from the same origin (point 0) which intersect the above mentioned path. I ...
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1answer
2k views

How to resolve an Invalid Topology [Incomplete void poly] error from a geoprocessing service?

I am consuming a geoprocessing service from my Flex application. My geoprocessing service takes the input geometry, and intersects another layer. It then runs a Summery stats on the intersection ...
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1answer
644 views

Geocoding failure on concurrent requests with arcgis-10.0

I've created a small python synchronous geoprocessing script (ctagc) that runs on AGS. The script accepts a table (GPRecordSet) as an input parameter. The script then calls ...
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4answers
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Is there any model builder in QGIS or other open source GIS?

Like the ModelBuilder of ArcGIS for Desktop to run simultaneous geoprocessing tools, is there any model builder available in QGIS or any other open source GIS software?
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2answers
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Can two polygon layers be merged in QGIS on a common id?

Can two polygon layers be merged in QGIS on the basis of a common id? Update: Ok , the dissolve tool works fine. But for instance lets say I have 10 polygons. 8 of them are together , so when ...
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2answers
1k views

What is the best way to extract the geometry of a road from OSM data?

What is the best way to extract the geometry of a road from OSM data? The goal is to display segments of highway that are closed due to weather. The weather data consists of positions (in KM measured ...
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2answers
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How to convert GeoTIFF to grayscale and add gaussian blur?

I have a giant GeoTIFF I'd like to convert to grayscale and add a gaussian blur to. As far as I know, GDAL can strip two of the three color bands and call it grayscale, which might work, but is there ...
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431 views

Access Geoprocessing results in Flex Viewer (Enhanced) Search Widget

I have Robert Scheitlin's Enhanced Search Widget up and running successfully with my MapService using ArcGIS Server and Flex Viewer 2.3. I also have a geoprocessing service that returns a point layer ...
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6answers
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Points to Polygon

I've millions of points collected for lithology layer. They have used a coding for different types of rocks. I need to create a polygon around the extent of similar points. What is the easiest way to ...
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0answers
245 views

Relate first point and last point of polyline to point feature(s)

I am working on a small script using ArcMap10/arcpy to generate a upstream-downstream uniqueid for a polyline feature class using point id's that fall on the starting point and ending point of a line. ...
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1answer
550 views

ArcPy - Dataframe rotation - Getting a polyline length wise in the dataframe in layout view in ArcMap

EDITED: I'd like to rotate my dataframe until a polyline fits dataframe-width wise in the layout view of a .mxd. If the lines runs north/south I would like the dataframe rotated until the line is ...
7
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3answers
289 views

Why it is still not common to publish and use WPS?

I tried to find some online platform-independent GIS services that could be called by any programming language and doing various GIS operations - like intersection, data format conversion, ...
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1answer
3k views

How to use ET GeoWizard tools or Xtools Pro in ModelBuilder or Python to automate processing?

Is it possible to use ET GeoWizard or XTools Pro tools in automation of mapping in either in ModelBuilder or Python?
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378 views

GIS data - Geoprocessing Service to receive data

I would like to move 8 shapefiles from one intranet to another intranet via arcgisserver (or an other method). Creating a FTP site is not an option. I think I saw somewhere on how to send data to a ...
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1answer
127 views

IGPutilities in IGPFunctions

Quick question, in Esri's area calculation sample of IGPFunction implementation they use IGPUtilities but they don't release the instance. On the singletons page in SDK help they list GPUtilities as ...
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2answers
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Is it possible to publish a geoprocessing services that uses a custom gptool on ArcGIS Server 10?

I have developed a custom GP tool in C# which does a bunch of processing on a given layer. It works great in ArcMap on all machines that I have deployed it to. I created a model which uses this tool ...
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1answer
549 views

Fields from a selected feature set are missing when gp.submitJob(..)--in Flex— pushes feature set to geoprocessing service (in Python)

I am extending existing query functionality that I have added to the ArcGIS Flex Viewer. I would like to extract the results from a query--which consists of a FeatureSet--into a .gdb. In order to do ...
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1answer
301 views

Best practices to minimize error when buffering unprojected data

If I buffer hundreds of unprojected WGS84 points across the US by say, 3 miles, will I get accurate areas returned (3 x pi x r) for each of the circles created? I suspect not. If not, what would be ...
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1answer
327 views

gp.CreateFeatureClass(..) and gp.CopyFeatures(..) isn't copying all fields of feature class

How do I get the ArcGIS 9.3 geoprocessor to copy all of the fields of a feature class? Here is a description of what I'm trying to do: I am modifying an existing script created by a developer not on ...
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2answers
2k views

Is there an effective limit to the geoprocessing task Geocode Addresses?

The issue I face has the following background: We are geocoding an immense directory of records. It is something in excess of 100 million addresses. I have split the addresses up into as small a ...
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4answers
460 views

Mirror of Michigan State University's Python geoprocessing course materials

Been learning geoprocessing with Python using MSU's GEOG 825 ( python geoprocessing ) course. Unfortunately the link is dead now. I know this is a long shot but does anybody have a copy of the ...
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2answers
841 views

How to cut a shape file?

I want to use a shape file of the Corine Land Cover. This covers all of Europe, but I am only interested in the area of Scandinavia. How can I cut this file using free software (preferably a ...
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1answer
205 views

Modifying a projection ArcMap 10.0 Arcpy

I have the need to project data from wgs84 to UTM 15N NAD1927 FOOT_US. I would like to have arcpy do this for me. I can project the data using one of ArcMaps predifined prj files in the Coordinates ...
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1answer
366 views

GP Progress Dialog in ArcGIS10

I have an ArcGIS custom IGPFunction tool. I want to use the GP progress dialog not the progress bar at the bottom of the ArcGIS window as I don't want people to interact with the map whilst it's ...
4
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1answer
107 views

Is it possible to use RPy/RPy2 in a Geoprocessing Script that is exposed as a GP Task on ArcGIS Server?

Is it possible to publish a Script tool that uses the RPy/RPy2 module (or more generally any Python-to-R link) to ArcGIS Server 10 SP2? If so, what specifically do I need to do, i.e. Install R on the ...
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1answer
328 views

ArcObjects 10 Java SDK

I am being tasked with converting a AGS georpocessing toolkit currently written in AO 10 C# SDK to AO 10 Java SDK. Are there any resources out there which show an end to end example of creating an ...
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1answer
545 views

Need help with Merge GeoProcess task in ArcEngine (C#)

Help! Having the hardest time getting the correct syntax when adding layers as gp parameters to call the Merge_management GeoProcessing Task. Below is just one of MANY, MANY ways I have tried with ...
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ArcGIS Geoprocessing Services - Don't work if 'Run python script in process' not checked

I have a standard geoprocessing toolbox that I am exposing as a geoprocessing service. The tools in this toolbox are plain 'ol python scripts. All of this is being done in ArcGIS 9.3.1. As a ...
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122 views

ArcGIS, clip issue when using a PGDB

When I clip PolylineMZ feature class inside a Personal Geodatabase it gives odd results for vertices. Vertices are horizontally shifted and do not corespond with original. When I do this in .shp, ...
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1answer
958 views

Examples which use map reduce to process GIS data

Have anyone a view examples how to use mapreduce effective with GIS data?
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1answer
482 views

Why is a Merge process via ArcObjects extremely slow?

In one of my arcobjects-based GIS tools I have a process which takes an array of shapefile paths and uses them as inputs with the ESRI.ArcGIS.DataManagement.Merge tool. I run it via a Geoprocessor ...
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0answers
689 views

Opening geoprocessing tools causes ArcGIS to hang

I am getting the same problem as http://forums.arcgis.com/threads/19468-Opening-tools-causes-ArcMap-to-freeze-crash That is, when I open any geoprocessing tool in ArcCatalog (might happen in ArcMap ...