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5 votes
1 answer
3k views

How to mix polygon extrusion and different altitude modes in KML?

I want to create boxes by simply extruding polygons but with special "floors". I've been able to find several existing solutions for the extrusion problem. The remaining problem is that the "floor" of ...
  • 307
2 votes
2 answers
301 views

Keeping SDE for data maintenance, but use postgis for display

We build and maintain GIS data in a production environment with SDE on SQL 2008. We also have a need to open up WMS and WFS that will make a complete ESRI solution really expensive. With an ArcGIS ...
2 votes
1 answer
597 views

How to link an application to grass?

I am creating an application (C#) and I want to connect it to GRASS, mainly run grass scripts from my application. This might seem to be a repeated question however I am thinking of the possibility ...
  • 1,367
1 vote
1 answer
992 views

Disabling/overriding internal arcmap commands with VBA

I am creating a template for ArcGis JTX. This is a mxd file, with a vba onload event handler which removes some functionality from vanilla ArcMap. I'm stumped on one problem: double clicking on a ...
user avatar
5 votes
2 answers
6k views

Seeking USA electric transmission powerlines as shapefiles?

Does anyone have a good source for USA electric transmission powerlines as shapefiles? I have some old (1993) data from the US National Renewable Energy Laboratory (NREL) and Cubewerx' WMS (Cubewerx ...
  • 1,989
0 votes
1 answer
2k views

Feature Cursor Count on multiple layers using ArcObjects

I would like to get a total count of multiple layer features (defined) within the ArcMap view extent. The code works fine with one layer but when I add a second or third layer with an "OR" ...
  • 34.8k
14 votes
2 answers
6k views

Selecting by bounding box with PostGIS

I have a large dataset in a PostGIS database. I am viewing it via a web interface that loads the data as GeoJSON. There is too much data to give the client all at once (10s of MBs worth...) so I would ...
  • 3,703
4 votes
1 answer
6k views

Google Maps API: Is there a way to do proximity analysis to POI

Using Google Maps API can I do proximity analysis, for example: In a state, let's say Virginia, display all the points that are 500 ft/m from a POI such as McDonalds or Bob's Diner, 1,000 ft/m from a ...
  • 8,523
1 vote
2 answers
563 views

extension list on tools toolbars

I'm sorry because my english isn't very good, I hope you're able to understand it. I'm using arcgis 9.3 right now, but when i try the Tools dropdown, then extension, there are no extensions listed. Do ...
  • 239
1 vote
1 answer
834 views

Converting Code from VB to Python in Map Algebra

I have a problem with Map Algebra in ArcMap 10 to convert some codes made by VB, so I need to convert it to python to work in ArcMap 10 without problem. How do I deal with map algebra in ArcMap 10? ...
  • 1,093
6 votes
1 answer
6k views

Watershed Delineation

I am trying to delineate just the catchment area of some lakes, and am wondering the correct way to do this. I already have a filled DEM, along with a flow direction and a flow accumulation raster. Is ...
  • 325
0 votes
1 answer
2k views

Change color of shape in Layer File

I currently have a layer file - in this case one of the United States. This layer contains a shape for each state so if I were to open the TOC Control and expand the "United States" I would see ...
  • 511
0 votes
1 answer
774 views

Programmatically uncheck layer in AxTOCControl

I am running my map in dynamic display mode, and I want to programmatically uncheck a layer that is not a IDynamicLayer that is visible in the AxTocControl -- its just a regular layer file. I ...
  • 2,760
23 votes
9 answers
3k views

Seeking Symbology for Interactive Mapping? [closed]

When a user clicks on a map what should they expect to see? I would say a symbol for where they clicked. A pushpin seems to be the most accepted icon for generic data. Google has pushed the upside ...
  • 1,321
7 votes
3 answers
4k views

Creating a raster surface of overlaps from vector polygon shapefiles?

Basically what I'm trying to do (in ArcGIS 10) is to compare three vector files in order to create a 'comparison' raster layer. I tried using Data Comparison (under Data Management tools) but it didn'...
  • 1,098
3 votes
3 answers
988 views

Printing MXD at A3 always prints at B5

Context ArcGIS 9.2 Build 1500 ArcObjects Windows Forms application running outside of ArcMap, similar to ArcEngine product. Accessing mxd to print out page layout to A3 paper. Mxd is saved with ...
  • 1,849
5 votes
1 answer
337 views

When is it better to use 64 bit File GDB access?

The beta 2 release File Geodatabase API includes 64 bit support. Esri says arcobjects is still the "preferred" method to interact with the file gdb. However, arcobjects has no 64 bit support. ...
1 vote
1 answer
2k views

Change The Label Field In GeoFeatureLayer

I currently have a basic shapefile that's a map of the United States. It has the name of the states, populations, and other pieces of information that I can get the names of via the following code: ...
  • 511
7 votes
4 answers
3k views

QGIS: Is it possible to edit the datasource of a PostGIS layer?

After creating a layer with RT_SQL_Layer plugin, I want to change some details in the query. Is this possible, or do I need to create a new layer every time I want to change something in the query? ...
  • 9,759
0 votes
4 answers
1k views

MFC Dialog Application using ESRI ArcEngine 10.0

I'm new to ESRI ArcObjects and I'm trying to create a basic MFC dialog application. I add the License and MapControl to the dialog resource. I compile and run the app, but I get the following runtime ...
user avatar
14 votes
5 answers
25k views

Removing feature layer using ArcPy script

I have an ArcPy based script where I'm trying to intersect two layers where one layer must have its centroid in the other layer. Since I need to know that one layer (feature_layer below) includes the ...
  • 1,676
0 votes
1 answer
604 views

Update, Insert Cursors don't work on Features that have annotation?

I've been working on a script to update my feature classes by grabbing new data from one feature class, and applying it to another feature class. It does this with several cursors, basically get ...
  • 1,224
8 votes
3 answers
4k views

GeoExt Vs Openlayers [closed]

OK: [ Openlayers + ExtJS = GeoExt] I am new to webmapping and still shopping around. I bumped into a Case Study with a gentle learning curve, matches my needs and it uses OpenGeoSuite. I got to learn ...
user avatar
6 votes
3 answers
568 views

Organizing PostGIS data of a large database for fast dynamic user searching

I have a large amount of GIS data, roughly 30 layers, each with 50,000 to 100,000 (Geo)records. Some of this data is GPS collected points, others are POI, some is government provided data (roads, ...
  • 8,523
2 votes
3 answers
10k views

Python code to read metadata from raster file [closed]

Can you provide me with Python code to read metadata from a raster file?
0 votes
1 answer
291 views

What URL should i use?

By using the code below, we can query featureSet to ArcGIS Sample Server. queryTask = new esri.arcgis.gmaps.QueryTask("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Demographics/...
  • 1,417
5 votes
4 answers
15k views

Select by attributes - records with the largest attribute value

Using 'Select By Attributes' how can I select records from a shapefile database table where a numeric field contains the largest value. Need to use MAX function or something like that but can't get ...
  • 51
5 votes
1 answer
4k views

Converting a CAD/DXF file to a SHP file

I have a dxf file which was converted from a CAD file. I used QGIS to convert it to a shp file... This is when I realized that the text associated with the drawing is actually a separate layer... What ...
  • 1,129
13 votes
1 answer
2k views

How do you use GRASS's v.kernel?

I am flummoxed on how to use GRASS's v.kernel. I have a vector layer of around 2.5 million points. I want to make a heat map using v.kernel to show concentrations, since I have variable instances with ...
4 votes
1 answer
2k views

Does ArcGIS API support Geoserver's WMS and WFS services?

I want to know whether ArcGIS API for Java Script support Geoserver's WMS and WFS standards. I have published my data on Geoserver and i want to query my data by WFS in ArcGIS API to develope my ...
  • 1,417
3 votes
2 answers
4k views

Using REST service with GeoServer

I have downloaded and installed GeoServer 2.1-RC1 which shipped with RESTconfig. How can i check whether REST service is installed with GeoServer or Not ? I put this "http://localhost:8080/geoserver/...
  • 1,417
2 votes
2 answers
222 views

Can the arrows produced by the d.rast.arrow GRASS script be queried or stored?

I have created a map with the flow directions using the d.rast.arrow. Can i query on the map to know where the direction of the arrows are? I am going to use the arrow directions in an algorithm. Or, ...
  • 1,367
44 votes
16 answers
82k views

Interview questions for hiring GIS Analyst?

What are some suitable interview questions to ask candidates for a GIS Analyst position? I am looking for techniques for interviewing analysts at varied experience levels (we are currently looking at ...
3 votes
3 answers
839 views

How do you produce a output table containing distances between mineral grains at various azimuthal directions?

I am using ArcGIS 10, the newest version and I am a senior at Western Carolina University and working on my senior thesis and the data set in which I have are images of mineral thin sections all ...
3 votes
3 answers
677 views

How to find wmsURL? And how to use QueryTask method?

I have couple of questions. var wmsLayer = new esri.layers.WMSLayer(wmsURL); with this line of code i can display wms layer over any base Layer. Now From where I get wmsURL ? I have published my ...
  • 1,417
3 votes
1 answer
3k views

How to update feature class by iterating through values with branching?

I'm really struggling with getting this to work. Basically, I want my script to get the "newID" value and use that as a look up value. If the "newID" is found in the OldID list then do one thing, ...
  • 1,224
27 votes
5 answers
16k views

Optimizing osm2pgsql imports for OSM data

I'm currently building an instance on EC2 on which to import the entire Planet.osm snapshot of the whole Earth's worth of data for some projects we're working on. I've spun up a large Ubuntu x64 ...
  • 1,347
2 votes
2 answers
380 views

Migrating Defense Solutions objects from ArcGIS 9.3.1 to 10.0 gives Unable to cast COM object error?

I've got an ArcGIS Engine application that uses the IMADtedLayer interface to access VPF DTED catalog layers and adds them to a map. The code ran fine under v9.3.1. I just updated to v10, and now I ...
user avatar
1 vote
1 answer
214 views

DrawPolygon problem in DrawDynamicLayer

I have a class that inherits from BaseDynamicLayer and I override the DrawDynamicLayer() method. Is there something special that needs to be done for a successful inDynamicDisplay.DrawPolygon(poly) ...
user avatar
9 votes
1 answer
22k views

How to use Select by Attributes query with semicolons?

I am trying to select multiple (50 or more) unique numeric records using ArcGIS 10's "Select by Attributes" using semicolons ';' after each record which it verifies as good to go. Please see screen ...
  • 1,989
1 vote
0 answers
749 views

ArcObjects: How to get the size of the formatted text part only of a TextElement whose text contains formatting tags?

I'm working in ArcGIS 10.0 and Python 2.6.5. I have a string, say 'mMx', that I want to enter into a TextElement (in the data view). The lowercase letters are to be substituted with a graphical ...
  • 1,622
0 votes
1 answer
482 views

How to publish Web Map on the internet?

I'm trying to use IIS 7 Manager to publish a web map on the internet except I have the folowing problem: I installed the ArcIMS web ADF for Java, and created a new webpage which depends on ArcIMS ...
  • 1,093
5 votes
2 answers
1k views

How to set a map's extent to the envelope in miles

I want to set extent of the map into envelope which sizes are defined by user in miles(kilometers, whatever human readable unit). How to make it? I wrote the following code: static void ZoomToPoint(...
14 votes
5 answers
2k views

Quality of free geodata compared to commercial sources

What are the sources of excellent geo-location data as possessed by Google Maps ? I am wondering that, even with large amount of volunteer work involved, why is OSM data not comparable to theirs in ...
4 votes
0 answers
178 views

Three Dimensional Routing Input Location Errors and Questions, ArcGIS10

I am having a bit of a problem with my three dimensional route solving. I am creating an interior building network, and ideally would be routing from room to room. I created a line feature class, with ...
  • 801
18 votes
5 answers
25k views

Calculating Topographic Ruggedness Index in ArcGIS Desktop?

Does anyone know how to calculate Topographic Ruggedness Index (a.k.a Terrain R.I.) in ArcGIS Desktop without access to command line ArcInfo Workstation? "The topographic ruggedness index (TRI) ...
  • 27.9k
6 votes
2 answers
1k views

ArcGIS metadata creation scripts

I maintain metadata as I always have....inconsistently and sporadically.. I know...booh to me. Anyways, I know python can pull all kinds of info out of mxd in V10. Has anybody come up with some ...
  • 61
5 votes
2 answers
1k views

Compressing map algebra outputs from ArcPy?

When creating a raster map algebra output, is it possible to set its compression? I'm creating a model which generates many hundreds of rasters, and currently each is being stored without any ...
  • 16.3k
1 vote
1 answer
498 views

Can I import symbology from an .axl file into ArcMap?

I'm setting up new Arcserver services, and some users would like the symbology in the new services to match the old IMS services. With that in mind, is it possible to either: a) import the symbology ...
  • 6,142
83 votes
5 answers
44k views

Displaying coordinates and inputs as LatLon or LonLat?

I'm trying to get a sense if this is an issue for others or every input/output should be labeled so user is not confused and just go with it? I think almost everyone pronounces it as "LatLon". Who ...

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