3
votes
2answers
774 views

Setting Layer in the Georeferencing ToolBar in arcMap 10?

Does anyone out there knows how to set the layer in the georeferencing toolbar. There is no information in the object models. Using ICommandItem ic = ...
4
votes
0answers
3k views

The best GIS book! [duplicate]

Possible Duplicate: GIS Pros - what lives on your bookshelf? Which book do you think is best for GIS with theoretical bases?
6
votes
3answers
324 views

How could I switch data connections in case of server failover?

Here is the scenario. I want to be able to switch the end users database connections automatically in case we ever have to switch to our backup SDE server. My first thought was to set up sde ...
4
votes
4answers
9k views

Correcting a table's projection in MapInfo

Occasionally I have a MapInfo TAB file that doesn't match up with others. Presumably this is because MapInfo is interpreting it as a different projection to the one it was saved as. I am also assuming ...
12
votes
2answers
3k views

How to add custom Feature attributes to Shapefile using Python?

I am seeking a way to take an existing Shapefile that has a Feature set of 200 countries. Each country Feature has an attribute of "NAME." My objective is to create a Python script that adds an ...
28
votes
8answers
3k views

When is a 3D Visualisation in GIS Useful?

I can currently only think of two cases: to visualise potential changes in a landscape, such as the effect of adding windfarms, or the addition of a new building to an urban area. However both these ...
5
votes
1answer
310 views

GIS project advice

Hello: I have the following: Shapefile of the world with the boundaries of each country Successfully imported shapefile into PostGIS database Can display map of the world in a browser via ...
5
votes
1answer
1k views

Setting transparency in background colors of neatline fame?

Is there an easy way to set transparency levels in background colors of a neatline frame or any other frame for that matter in ArcGIS?
5
votes
2answers
3k views

How can I disable and enable an ArcGIS 10 Add-In button?

Is there a way to enable / disable Add-In buttons / tools?
3
votes
1answer
4k views

How can I compute raster pixel width and height given raster bounds, row count, and column count?

Restated, how do I convert arc degrees to meters? For example, I have an elevation data raster that has the following metadata: WEST LONGITUDE=64.97798789° E NORTH LATITUDE=33.02003415° N EAST ...
3
votes
2answers
266 views

What is ArcCatalog?

What is it, what does it do, and how is it related to geodatabases?
0
votes
3answers
764 views

Why is ArcGIS Desktop labeling wrong polygons?

I am working with a very large data set. When I label my polygons, the labels display like a highway of labels through the middle of my map. I'm using ArcGIS 9.3. I have tried to fix it with Maplex, ...
11
votes
7answers
2k views

Color palette conventions

I wonder if there is a "unified" source for map color conventions, that GIS map builders are encouraged to follow? EDIT To clear up my question a bit. I'm more interested in the color <-with ...
4
votes
2answers
233 views

Statistics to shades in a world map

Is there any API or web service to create statistical world maps where the values are different shades of a colour? Something like ...
7
votes
1answer
2k views

ArcGIS 10 Add-In compile problem - Why are new edits to code igonred by ArcMap?

I've been compiling and debugging my Add-In (a toolbar with a few menus, custom commands, custom selection tool and a context shortcut menu) with no issues until suddenly the edits and changes I do in ...
5
votes
1answer
2k views

Calculating Map Resolution Without Pre-Defined Scale Levels

I am trying to determine the formula necessary to calculate map resolution (change in lat,long per screen unit). I am interested in only WGS84 coordinate space. Every formula I have found thus far ...
2
votes
2answers
876 views

Problems closing dbf-table edited with ArcObjects

To change values and add new values to a dbf-file, I connect to the dbf and use the ITable interface to make the edits. At the end I release the COM-objects of the table and the workspace. But when I ...
3
votes
1answer
828 views

Good Java-Based Raster Libraries

Can anyone suggest a good, Java-based raster library? By good, I mean a library that can read common raster formats (ex. tif, img...etc) and save them to other image formats (ex. png). I say ...
15
votes
6answers
2k views

GIS Day function ideas?

Given that today is GIS Day I was wondering what people had run/been to/ had ideas for as function for GIS day. I have seen a few I have liked but any other stories would be awesome.
12
votes
3answers
2k views

What is a good taxonomy or naming convention for files and folders containing GIS data?

My company has collected about 30 TBs of GIS data over the past 8 years, and I always find myself asking the following questions: What type of data do we have for a given geographic area? What are ...
11
votes
1answer
679 views

How do I identify and gracefully kill hung Gp service processes?

I've published a gp tool as an asynchronous non-pooled gp service. When the gp tool hangs I would like to allow the user to kill it, without impacting other services. If I put a webservice on the ...
2
votes
1answer
2k views

Is there a function or tool that will add vertices to polylines where endpoints are snapped to edges? (ArcMap)

My friend and I are creating a walking network, and we have been having issues getting the routing to work. We just realized that the reason why our routes are messed up is because we snapped our ...
2
votes
1answer
423 views

Hit test for dynamic object

I am drawing a dynamic moving vehicle like this: m_dynamicSymbolProperties.set_DynamicGlyph(esriDynamicSymbolType.esriDSymbolMarker, this.bluePoliceCarGlyph); ...
6
votes
4answers
601 views

What type of OS is best for ESRI mobile Development?

I know there is going to be varied opinions on this question. We're being asked to create some mobile maps for various departments in our county. This happens to come at a time when AT&T has ...
7
votes
1answer
1k views

Adding Panoramio Photos To An OpenLayers Map

I have a pretty well integrated OpenLayers map that I want to add photos from the Panoramio API to. Unfortunately, it seems both API's are under documented on this subject. I found one great tutorial ...
11
votes
6answers
4k views

How to run Spatialite on Android?

Does anyone know if it is possible to get Spatialite running on Android? Specifically for either Android 2.1 or 2.2. I've been browsing the web, and although it seems technically possible, I haven't ...
9
votes
3answers
1k views

How to populate an undirected graph from PostGIS?

This question is more related to resources that I might not have identified yet, although I've been searching the web for a while. In the project I'm working at the moment I need to run a ...
5
votes
1answer
376 views

Generate Mobile Map Cache from ArcObjects

As of ArcGIS 10, is there a way to generate a mobile map cache using ArcObjects? This can be done in a stand-alone Python script: ...
4
votes
2answers
473 views

What is the cause and solution of this ArcMap tint band drawing issue?

I installed ArcGIS 10 SP1 last week. My graphics card meets the spec and I'm up to date on drivers. I have a layer of parcels that are tint-banded in the MXD. At some scales, straight lines that ...
5
votes
1answer
190 views

How display outlines in a Map, only from a scale, but the colored polygon in all scales?

I want to display a shape with UMN-Mapserver. It has different coloured polygons and also outlines. But I want to display the outlines only, from a specific scale. I could add MINSCALE 150000, but in ...
5
votes
2answers
779 views

Symbols showing sex of a species in a label in MapInfo

I am trying to indicate the sex of a species using the symbols ♀ and ♂ in MapInfo. I would like the symbols to display in the label of each species point, but I cannot find out how to do this. I had ...
12
votes
7answers
10k views

Extract raster values at points

How can I extract values from a raster by points. I prefer not in Arcgis. I prefer in Qgis or Mapwindow or other open source gis.
9
votes
2answers
729 views

GIS Layer of USA State Court Jurisdiction Boundaries

Does anyone know of a national layer? Edit: Sorry for the delay in clarifying. I am looking for all courts (district, circuit, municipal, Superior, etc.) depending on the terminology used for the ...
5
votes
1answer
3k views

Configuring legend for ArcGIS API for Silverlight?

I can't get the simple Legend sample working with this florida mapservice and the ESRI Silverlight SDK 2.1. The names appear, but the tree doesn't get populated. Anyone see why this code shouldn't ...
34
votes
4answers
24k views

Which character encoding is used by the DBF file in shapefiles?

Which character-encoding is used by the dbf-file in Shape-files? It seems it is handled different, based on the program and the local encoding-settings of the machine. Which encoding is 'right' - ...
3
votes
1answer
156 views

Custom Dynamic Layer draws below annotations

My custom dynamic layer (moving vehicles) is at position 0, specified by this code: mapControl.Map.MoveLayer(customDynamicLayer, 0); //smaller numbers draw later But the annotations of the layer ...
1
vote
2answers
229 views

How can I determine whether a feature class is a 3D feature class (HasZ)?

I would like to be able to determine whether a feature class passed to a procedure is a 3D feature class (hasZ) or not. How can I do this in VB .Net & ArcObjects?
3
votes
2answers
238 views

Get heading from 2 IPoints

I am moving an object from one point to another and would like to update the heading of the dynamic display properties. I am using this code: ...
8
votes
5answers
3k views

What are the advantages / disadvantages of reporting location in decimal degrees versus degree min sec?

Many scientific articles report site location in units of degree/min/sec, but for analysis in with non-GIS software, it is easier to use decimal degrees. Is there a reason for degrees / min / sec to ...
6
votes
4answers
256 views

How to serve web maps with user-specific datasets from ArcGIS Server

I am a new ArcGIS Server user and am trying to understand how our web mapping application specification would fit into the ArcGIS Server map services architecture. Our application should support ...
5
votes
2answers
1k views

Are there any sources of UK building footprint data available?

I noticed that there's another question related to this topic, but the question was related to US data. I'm looking at the possibility of producing an interactive map for a UK based city, which ...
6
votes
1answer
1k views

Have Legends been implemented for ESRI's REST API?

ESRI's 10.0 documentation for legend indicates that this url should return a legend: http://map.floridadisaster.org/GIS/rest/services/Facilities/Critical_Facilities/MapServer/legend But it doesn't ...
6
votes
2answers
7k views

Why are labels overlapping in ArcGIS Desktop?

I'm not new to GIS, but just learning ArcGIS 10. I have been led to believe that the standard labeling engine doesn't allow any overlap: ...
15
votes
4answers
6k views

Free or cheap software for generating Geospatial PDFs

I'm looking for a cheap software to generate Geospatial PDFs (GeoPDF, ISO 32000 Adobe extensions, or OGC recomendation). Currently, as far as I know, there are very expensive propietary solutions. ...
3
votes
3answers
2k views

How to create a copy of a feature class that is vertically and horizontally offset by a given distance?

I want to duplicate a polygon feature class and offset all of the polygons by about 10 feet in both the x and y directions. Is this possible to do using arcpy, or are there any geoprocessing tools ...
5
votes
1answer
2k views

Setting map rotation in ArcGIS API for Javascript?

I've created a web map using the ArcGIS Javascript API, but I need my map to have a fixed rotation of 1.76. The street grid of the map doesn't totally align with the cardinal directions, so it looks ...
12
votes
4answers
347 views

What are some Domain Specific Languages (DSLs) for GIS?

I'm curious what sort of domain specific languages (DSLs) are used in GIS. The only one I can think of is the DOCELL language that was provided in ArcInfo Workstation GRID, but is no longer ...
10
votes
6answers
1k views

What is this “brown spot” in Google maps?

I was in Google maps today and noticed near Baltimore, US where the river is, there's a huge brown spot. Is this due to all of the waste? If so, will this keep going all the way into the ocean?
3
votes
1answer
2k views

ArcGIS - How to export only map borders to a transparent .png file?

Is there any easy way of doing it?
15
votes
5answers
1k views

Is good database design less important for spatial databases?

I have a strong feeling that database design and normalisation often comes in second hand when dealing with spatial data. With software costing a fortune and databases with over 100 fields tables I ...

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