All Questions

7
votes
1answer
13k views

find the centroid of a cluster of points

While searching the web, solutions for finding centroids of polygons come up rather often. What I'm interested in is finding a centroid of a cluster of points. A weighted mean of sorts. I would ...
0
votes
3answers
1k views

How to access map service from GeoServer and can we use that service in ArcGIS API?

I have installed GeoServer and publish one shapefile on it. Now my question is, How can i access that shapefile from GeoServer? and can i work with that resource (shapefile) with ArcGIS API. As we can ...
3
votes
3answers
741 views

How to use ArcGisServer from Engine?

MapServerQuerySublayer (Version 10) does not seem to support setting a definition query, although according to documentation it should using ImapServerSublayer2.LayerDescription as IMapserverSublayer. ...
9
votes
2answers
4k views

Cutting up a shape file into smaller parts

I've downloaded the 350MB coastline shape file from Openstreetmap, but I really would like to work with a small part of them, is there a way to generate a shapefile of a small area. I'm using MacOSX ...
7
votes
2answers
623 views

Maps, black and white/ gray scale printing

I'm working on Mapserver to do beautiful maps with AGG rendering Until now, I've only thought about the best way to get color maps. Now, I have to think how to make color ones compatible with a grey ...
5
votes
5answers
1k views

Is ANZLIC Metadata supported using the new approach of ArcGIS 10.x?

I like the new approach to metadata at ArcGIS 10 because I fall into the camp that prefers minimal metadata for many purposes, but like to have the option to work with more comprehensive standards ...
3
votes
3answers
2k views

Moving from MapInfo to web mapping

I use MapInfo and have a lot of data in .tab format that I would like to put into a database in order to access it through a website. I would like to continue using MapInfo as my GIS programme and ...
7
votes
4answers
8k views

How to select fields returned by GeoServer WMS GetFeatureInfo request?

I'm running simple local mapping service based on PostGIS/GeoServer/OpenLayers stack. Following opengeo tutorial I've tied click events in OpenLayers to WMS GetFeatureInfo call using: ...
2
votes
1answer
460 views

Is it possible to create animated markers in ArcMap?

I remember reading somewhere last year that arcgis 10 would allow the creation of animated markers (alike animated .gifs) that could be either exported to pdfs or seen inside arcmap. Does such ...
1
vote
1answer
222 views

featureclass legend

Is there any way to specify a legend before I attribute a featureclass in ARCMAP 10? I have a featureclass layer that has many thousands of polygons, I have to go through and individually attribute ...
6
votes
4answers
412 views

Where can I get country, region, and city data?

I need the names of countries, country regions and cities of the world. Where do I get that kind of information?
4
votes
2answers
953 views

Publish MXD to server in ArcObjects C#

I have an MXD that I would like to publish to an ArcGIS server using C# ArcObjects (preferably as an MSD). I have been unable to find anything regarding this. Essentially I would like to implement the ...
3
votes
4answers
414 views

Tools for planning a building

I'm planning to build a cabin, and I'd like to combine all the GIS data available from my home country with my own measurements for placing and the cabin layout. That is, I need a tool which can: ...
4
votes
4answers
7k views

Why doesn't the Field Calculator work in ArcGis 10?

When I try to calculate a field nothing happens. I have always been able to just select the field, open the field calculator and type = and the new number. This is frustrating because the other GIS ...
1
vote
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 ...
6
votes
5answers
3k views

Programmatically edit/update metadata in ArcGIS 10

Has anyone succeeded in programmatically updating metadata in ArcGIS 10? Considering using Python/arcpy but ArcObjects (C# or Python/comtypes) is also a possibility. I need to update both the FGDC ...
1
vote
0answers
675 views

two results of IDW in ArcMAP are different

i added the following points to ArcMAP using "Add XY Data". x,y,z 7,39,117 27,17,122 27,61,123 46,36,136 52,14,138 55,46,141 56,56,137 65,24,144 65,36,145 Changed raster output size in "options" ...
2
votes
3answers
553 views

Why is this polygon “self intersected” and invalid?

I have a polygon defined as follows: segment from 43:29:02 N 003:50:39 E to 43:34:12 N 003:43:04 E arc(CW): center (43:34:49 N 003:58:16 E) from 43:34:12 N 003:43:04 E to 43:45:45 N 003:59:56 E ...
6
votes
1answer
571 views

How can I host a map service that uses an online basemap as well as my own dynamic layers?

I have a flex web application with an ArcGIS Server backend that I want to start using an online basemap for. The application includes a printing capability that prints a layout from an arcGIS map ...
4
votes
2answers
1k views

How to delete a map from the GRASS interface?

I want to delete a map that I generated from GRASS. I tried removing a map from the "Map Layers for each display" tab in the GRASS GIS Layer Manager, but it only removed the map from the list and not ...
6
votes
6answers
396 views

What will GIS be like in 5 years (and in 50)? [closed]

How will GIS technology be used 5 years from now ... and in 50 years?
9
votes
1answer
9k views

How to apply custom Google map style in OpenLayers?

Recently I stumbled upon interesting article showing potential of adding custom styles to Google Maps. Some examples of styled maps can be seen here and you can design your own from scratch here. ...
11
votes
4answers
34k views

Opening and extracting data from Shapefiles?

We are in need of US highway data. We found it for Florida at the state GIS website. We downloaded the data for Florida highway intersections from here (this is a zip file). How do we use these ...
0
votes
1answer
120 views

Given a geocode or geo location in US, how to find exits that are within some distance from the geo location for US?

We have a need to find the geocodes of US highway exits that are within some distance from a given geocode. I do not know how to do this? Can one please direct to the right source or provide a ...
3
votes
2answers
192 views

How to make the arrows in d.rast.arrow GRASS script visible?

I'm trying to create a Flow or directional raster map (with arrows) from an SRTM elevation map that I downloaded from CGIAR. I already created an aspectMap to be used for the d.rast.arrow. I used ...
1
vote
1answer
661 views

GRASS v.out.dxf 3D into AutoCAD

So continuing with my last question (Create 3D dxf with OGR) I have decided to give the GRASS option a go. I have imported my polylines into GRASS using v.in.ogr and converted them to 3D using ...
2
votes
2answers
122 views

GRASS 6.4.0 and GRASS 6.4.SVN

What is the difference between GRASS 6.4.0 and GRASS 6.4.SVN? Thanks
2
votes
3answers
3k views

ArcMAP Clear Cache - Function

Do any of you use the Clear Cache function much OR upped your cache from the default 100mb? We export PDFs from MXDs and it has been reported to us by a few that upping this number or clearing the ...
1
vote
1answer
249 views

Looking for webservice for distances (road) between UK towns

I am thinking about writing a program to check some mileage claims (about 45'000 of them actually) made by British MPs recently. The data I have is quite course - the origin and destination of the ...
7
votes
5answers
1k views

Is there an online tile-based elevation service?

I am working on an application that requires the elevation at a given lat/long coordinate for lots of closely spaced coordinates along any given irregular path. (The path is a trace of a ...
1
vote
1answer
606 views

user select fields to be deleted in a feature class

How do I make the script below accept parameter arguments correctly in ArcGIS 10? I added it to a toolbox as a script, created parameter called Fields to be Deleted: and type as Field, but when I ...
2
votes
0answers
230 views

How to turn off tool tip for the Identify button?

When using the esriControls.ControlsMapIdentifyTool tool, the (i) button, whenever you click it, it says "Click on or drag a box over a feature and place on the map where you want to identify" in a ...
5
votes
2answers
1k views

Call FWTools (ogr2ogr) from ArcGIS python script

In ArcGIS, I want to use a Python script (and a standard ArcGIS script tool UI) to call functionality from FWTools. How would I make the call to FWTools? I tried using ...
15
votes
7answers
627 views

What is the single most influential book every GIS professional should read?

If you could go back in time and tell yourself to read a specific book/text/guide/tutorial at the beginning of your career as a gis-developer, which book would it be? I expect this list to be varied ...
1
vote
1answer
138 views

How to publish web map in ArcIMS

i have made web map by ArcIMS 9.3, so i want to publish it, How.....????. thank you.
3
votes
2answers
582 views

Enabling time aware layers using arcpy

Is it possible to enable time aware on a layer programmatically? I can add a time-enabled layer to a non-time aware data frame as shown here: ...
8
votes
4answers
1k views

Flood modelling insights

I am trying to create a flood modelling system. The system consists of two parts mainly a river flooding simulation and rainfall simulation. To do this I am running the latest version of GRASS 6.4. ...
1
vote
1answer
734 views

How to access .shp file from local computer or some other server

Below is the code in which we can access a feature layer from ArcGIS sample server. queryTask = new ...
1
vote
2answers
476 views

.rul topology rule

How can I create *.rul*file for topology in ArcGIS?
3
votes
1answer
182 views

Get points in point file to write into new field the census tract each is in (from another shapefile)

I have points that represent day care centers which have address and lat-long. I am using lat-long to display. Now I need to sort, count, etc. these points in conjunction with new census data. To be ...
14
votes
3answers
9k views

Listing all feature classes in File Geodatabase, including within feature datasets?

From python how can I build a list of all feature classes in a file geodatabase (*.gdb), including inside feature datasets? The standard example only lists feature classes at the top level of the ...
4
votes
2answers
271 views

Is there a way to distinguish data precision in KML?

Here's my problem (and I was inspired to ask this from this question)... I create a KML file recording where upcoming training courses will be for the next year. The cities might be Atlanta, Calgary, ...
6
votes
1answer
2k views

How Can I Install “QGIS Server” in a Windows 7 PC?

I am trying to install the new "QGIS Server" feature that comes with QGIS 1.6 on my Windows PC. The directions for this at the QGIS website only show instructions for Mac OS, and those in other GIS ...
1
vote
1answer
2k views

VBA field calculator: concatenating fields

I'm trying to get one column of text to move into another column that already has text. I DON'T want to replace it, I want the transferring text to be added to the already existing text in a shp file ...
3
votes
0answers
237 views

Alternative to IMapServer2.ExportScaleBar

Does anyone know a good alternative to the IMapServer2.ExportScaleBar function? I want to do essentialy the same task, but outside the ArcGIS Server environment. For a given map scale, predefined ...
8
votes
4answers
1k views

How to Geocode a City

First, a little disclaimer. I know that I can just call one of any number of geocoding APIs to perform this for me. This is more of a curiosity than anything else. With that aside, how does someone ...
17
votes
11answers
4k views

Permanently reorder fields in data (shp, gdb)

If I have a shapefile or geodatabase featureclass that has fields that I want to permanently reorder, is there a tool, script, or utility that will help me quickly accomplish this task? Generally I ...
0
votes
1answer
306 views

Eliminating a column from a copied feature class via a fieldmap object in ArcGIS Python

The use case is exporting a feature class via a Python script (arcgisscripting v9.3x. Only a few of the columns are needed in the result feature class. I commonly use the fieldmappings/fieldmap ...
4
votes
1answer
327 views

Programmatic Configuration of ArcGIS Server data and layers?

Hey all, I'm trying to figure out how people in the ArcGIS Server world script configurations. In the GeoServer world we have the REST Config API, which lets you configure connections to a database ...
3
votes
2answers
3k views

How to export selected records to a .txt file

I am working on a project where I need to create a tool/method to export the attributes of selected features to a .txt file. I have point features containing addressing information, and the tool ...

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