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 to choose first letters of words in an attribute table?

I want to write a script (Python or VB) in Field Calculator which can pick up or choose the fist letters of words and put them in a new field. For example: Lepidium catapycnon..........> Lc Gold ...
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1answer
172 views

Is there any open-source building squaring tool?

I have a set of detached building polygons and i can merge them together in order to form a single building polygon. However, when merged output polygon may not preserve the orthogonality of building ...
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4answers
842 views

How to aggregate detached polygons?

Is there any open-source library to aggregate detached polygons? I know that there is a tool in ArcInfo, but it is commercial.
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1answer
655 views

Why does aggregate polygons consistently error out?

I'm using aggregate polygons on a dataset with three large study areas. It did not work. So I split it into separate areas and did it again. Two of the three areas (which were smaller than the third) ...
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3answers
1k views

Using arcpy what is the most efficient way of projecting a selection from a large data set?

I have a large data set X(x1-xn) from which I must select consecutively the attributes A(a1-an) from X.fieldsSRC or X.fieldDST and project the selections. I have a functioning arcpy script that does ...
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1answer
138 views

Is there an arcpy boolean check for whether an EPSG or prj is supported by arcmap?

I'm writing a tool and essentially I found out that arcmap defaults an epsg to 0 if it sees that the projection is not supported against the predefined projections.
3
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1answer
286 views

How To Determine Frequency Of Overlapping Polygons (Bounding-Boxes)

My starting point is a series of bounding box polygons, representing the extents of all the data sets in my inventory. I am trying to produce an output grid showing the frequency of coverage over the ...
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1answer
2k views

How to get point attribute from polygon layer?

I have two layer, one (A) has point features and the other (B) has polygons. I need to produce a new table with some (the ID) or all the fields from the A table and some (the area code) or all from ...
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2answers
1k views

Modelbuilder: Needing to input multiple featureclasses into merge tool

So I have 490 point fc's in a single directory with uniform spatial features, field names/datatypes. I'm trying to figure out how to consecutively input the first seven fc's into the merge tool, ...
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1answer
233 views

Regression with Nominal and Categorical Data

I am doing a project looking at the prevalence of a weeds in an area. As an example, I have the following layers: Weeds Layer (polygons) {categorical data} Each polygon represents a point or polygon ...
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1answer
2k views

How to intersect lines and polygons in R?

Following on from an answer about intersecting polygons with lines to chop up a polygon into smaller polygon units (in QGIS), I wanted to try the same thing in R. However, I cannot seem to find a ...
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1answer
234 views

Error 000204 using “Export Feature Attribute to ASCII” Tool on ArcGIS Server 10

I´m trying to export feature attributes to a CSV-File (on ArcGIS Server) to use them in other applications (using the "Export Feature Attribute to ASCII" Tool). While the tool is working ok in a ...
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2answers
559 views

Zoom to Selected feature, without using 'current' in python

I am wondering if it is possible to build a zoom to geoprocessing service without using 'current' for the mxd variable in pyhton. Using 'current' my tool works in arcmap, but not in my gp service. ...
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1answer
138 views

ArcObjects 9.2: TableToTable tool fails depending on output location

The code I am writing for a button (ArcObjects 9.2, Visual Studio 2005) takes the attributes for selected points in a shapefile and writes them to a table: Dim pGp As GeoProcessor = New GeoProcessor ...
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2answers
157 views

Closest Facility/Delete Identical Tool Help

I am having a bit of a time figuring out a work around for a problem I have. Essentially, I ran a Closest Facility operation on a set of about 200 points. Each point is an entrance to a building, and ...
3
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1answer
315 views

ArcGIS Server 10 GP Service Cannot Download Result?

I have implement the ArcGIS JavaScript example just like the ESRI official example (clip and ship) .Everything was going right except the final step ,when the gp job have finish and my browser lead me ...
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1answer
522 views

Specifying which ArcSDE feature class Geoprocessing Service is to update?

I want to have a geoprocessing service update sde. I am getting an I/O Error saying data doesn't exist. I imagine because the connection file (copied from my ArcCatalog folder) I placed next to the ...
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5answers
4k views

Open Source Address Correction / Parser with Fuzzy Matching

Here is a a little bit of a detailed question related to address parsing/geocoding which I feel should be interesting to many users. So, essentially I am curious to know if anyone has had any ...
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2answers
863 views

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 ...
3
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1answer
186 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
2k views

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
359 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
223 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
160 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
552 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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0answers
652 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
316 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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0answers
475 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 ...
21
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9answers
2k views

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
411 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 ...
3
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2answers
952 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 ...
5
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3answers
507 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
725 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 ...
5
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1answer
395 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 ...
3
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1answer
658 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
3k views

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
3k views

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
1k views

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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0answers
436 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
9k views

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
248 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. ...
2
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1answer
559 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
299 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, ...
3
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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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4answers
383 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 ...