8
votes
4answers
814 views

Preferred programming language and software for entire remote sensing workflow?

I have been involved in remote sensing for some years now during studies. I am wondering which combination of software and image processing modules would be most suitable for an entire process chain ...
4
votes
2answers
1k views

How to render PostGIS raster with Mapnik XML?

I'm trying to manage raster files from PostGIS, which to be rendered using Mapnik. I used raster2pgsql to load those GeoTIFF images to PostGIS, and I think the loading process turned out OK. The ...
1
vote
1answer
85 views

On which TextBox event should I call ICompletionNotify.SetComplete?

I have a IToolControl derived control which contains a c# TextBox. In the IToolControl::OnSetFocus function documentation, it states that you need to call ICompletionNotify::SetComplete() when it's ...
0
votes
1answer
567 views

How to georeference CAD drawings without preserving aspect ratio?

I have a CAD drawing (DWG) format that I would like to georeference to my basemaps that are projected in UTM coordinates. This drawing is done to scale without any geographic referencing. In ArcGIS, ...
2
votes
0answers
409 views

How to access mysql data from python built-in console?

I'm writing a QGIS Plugin, and somewhere I want to present data from a MySQL database. It's simple data(strings,etc), not Geospatial, or vector data. I'm familiar with querying databases from python ...
17
votes
2answers
648 views

What should QGIS course for advanced ArcGIS Desktop users cover?

I will build a 16 hour (2 day) course on QGIS for ArcGIS users. The target users that breathe and sleep ArcGIS. As we're trying to reduce our costs, we're thinking of switching some people to QGIS and ...
1
vote
1answer
428 views

ArcGID Android SDK Calculate area in square meters from polygon geometry?

I have a Polygon object in ArcGIS Android SDK that I'm creating on a map, I would like to calculate that polygon object to square meters. currently I use double area=polygon.calculateArea2D(); ...
1
vote
1answer
871 views

OSM Nominatim Server Installation Projection Error

Environment: Ubuntu 12.4 Postgresql 9.1.4 PostGIS 2.0.1 Latest Nominatim installation instructions posted at http://wiki.openstreetmap.org/wiki/Nominatim/Installation The installation is failing ...
1
vote
1answer
219 views

Problems with matching layers with different projections

I have two layers with the following projections: Monte Mario IT1 UTM* Anyhow, I followed the instructions (open the project, set the projection, select on the fly projection, load the layers but no ...
2
votes
1answer
79 views

How could I assign point values to a raster stream segment?

I need to assign a point value in raster format to a raster stream segment, which contains the point. See bellow: The expected result is a segment, whose value is the point value. How could I?
2
votes
0answers
189 views

How to make a dynamic animated movement for the graphics on the Silverlight website?

I have some graphic points in one graphicLayer on the map and I want to move their positions to the new places every 5 seconds based on some criteria. And these movement can be visualized dynamically ...
3
votes
3answers
4k views

How to get values of each cell in raster attribute table?

How do I get the values of each cell in the raster attribute table. Usually the attribute table gives you the value and number of counts. But, in my case I want each cell listed and corresponding cell ...
1
vote
0answers
72 views

Database has duplicate values after running pgrouting

I am a newbie with postgresql and sql statements so maybe it is a trivial question, I'm sorry for that. I am working on a postgis database and try to use the pgrouting function. My goal is to store ...
1
vote
3answers
792 views

How to create a generalized polygon layer from a raster?

I have a tiff file where I have extracted vegetation in a height interval from LIDAR. At the moment the picture is kind of blurry with no data cells between vegetated cells. I would like to create a ...
0
votes
1answer
319 views

Problem in Spatialite database creation

When I try create a new DataBase, Spatialite plugin return the dialog error box: The SQL query seems to be invalid. no suck table: views_goemetry_columns When I click in OK button, a second dialog ...
1
vote
1answer
316 views

How to parse xsd:schema file using openlayers?

I got layer column names using this thread. But I am stuck parsing it. How to parse this xml using openlayers? <xsd:schema elementFormDefault="qualified" ...
1
vote
1answer
3k views

How to convert a regular point grid to raster? [duplicate]

Possible Duplicate: How to convert a point grid to a raster? I´d like to convert a regular grid (25 meter) of points (XYZ) to a raster. I have tried the GRASS-tool r.in.xyz but I always get ...
1
vote
1answer
895 views

How to disable overlay check box after a certain zoom level?

How do I disable a particular overlay checkbox in the Openlayers Layerswitcher?
5
votes
1answer
1k views

How to create a custom data viewer on top of QGIS?

I was exploring the possibility of creating a simple Data Viewer based on QGIS. I would like to create an simple application that will open QGIS up with a limited set of tools & menus. QGIS would ...
1
vote
0answers
93 views

What to use to divide longitude on smaller parts than time zones?

I have a database of earth's grid, I have consolidated elements from 1152x576 to 360°x180° and then those degrees into geographical zones and time zones so I get 5(6) geographical zones (N/S frigid, ...
4
votes
4answers
2k views

Why won't the QGIS Lisboa MSYS and OSGeo4W shortcuts launch?

I'm trying to deploy Quantum GIS Lisboa to 64bit windows 7 machines the installation works fine but the shortcuts wont run With an error Windows cannot find "C:\Program" This also happens on XP sp3 ...
1
vote
2answers
480 views

How to print a vector layer over Google map? “Physical Printing”

I use Geoserver, Openlayers, Extjs and GeoExt to build an app. I am trying to get vector layer on Google map printed with pop up a Print dialog, I tried : var targetElement = Ext.getCmp('mapPanel'); ...
3
votes
1answer
255 views

Help with null values in rasters

I need to add different boolean rasters of the distribution of some species, since we need to obtain a single file that shows the locations where there are more than one species occurring. To do ...
7
votes
3answers
533 views

Is there a paid service for accessing a PostGIS/OSM DB

I want to render a world map with mapnik and postgis, but do not want to set up my own DB, because the needed hardware and processing time for the OSM import make it nearly impossible for me. I just ...
4
votes
0answers
1k views

Finding YMin and YMax of polygons in shapefile using ArcPy? [duplicate]

I'm using ArcMap 10. I want a python script that tells me the Xmin, Xmax, Ymin, and Ymax of a polygon. (I guess this is finding the extent of a polygon?) My current script gives me the correct the ...
3
votes
1answer
159 views

Show feature classes as a checklist in a workspace in ModelBuilder

In my model, I would like to show all the feature classes inside a file gdb as a "checklist", similar to how the tool dialog window for Make Query Table looks: So instead of the input being a ...
3
votes
2answers
936 views

How to get column names of layer (WMS) using OpenLayers?

Is it somehow possible to get layer's column name using OpenLayers? any example and documentation would be really useful? Edit: I have already tried WMS_describeLayer topp:states layer: <?xml ...
1
vote
1answer
436 views

Converting distance in ArcGIS Android SDK?

I have a Polyline that I draw on the map and I would like to get its distance in meters. right now it's not working, basically what I have is distanceSeg=new Polyline(); double ...
4
votes
1answer
558 views

Programatically take screenshot of map extent in ArcMap 9.3

Is it possible to programatically capture a screenshot of the current map extent (the map area with any active displayed layers) in ArcMap with the ArcObjects .NET SDK?
3
votes
1answer
148 views

Proximity query approach

Let's say that I have two tables in PostGIS, tracks and cities, each table has two columns, in both cases the columns are called name and way, name is a string, way is a geometry. I want to retrieve ...
2
votes
3answers
2k views

Simplest way to publish WFS from SQL Server under ASP.NET

My environment is ASP.NET, with data stored in SQL Server. Is there a way to serve Web Feature Services through C#, or will I need to install a mapping server?
3
votes
1answer
309 views

Using multiversion view trigger to maintain unique ID in ArcSDE for Oracle?

I'm trying to identify the best way to automatically maintain a unique id column in Oracle ArcSDE. I don't want to use a class extension, since I've multiple third party users of the data and it's ...
2
votes
2answers
151 views

Invalid Username When Developing a QGIS Plugin on Mac

On a fresh Mac OSX 10.8 install, I've installed Quantum GIS from Kingchaos binaries and it's running fine. I'm trying to develop a plugin for QGIS using Plugin Builder. The skel that Plugin Builder ...
2
votes
1answer
964 views

Move TEXT_ELEMENT using arcpy.mapping and data driven pages

I'm customizing an automated mapping solution using arcpy.mapping and data driven pages. Using a looping statement, I'm hardcoding the position for the mapping elements (legend, north arrow, inset ...
1
vote
1answer
356 views

How to join different line segments between points into one entity in QGIS

I have a .shp file of pipe lines. I want to join all the pipes between two valves to be considered as one segment in QGIS. Help would be appreciated. Thanks
3
votes
3answers
2k views

how to extract lat long from WKT data?

i want to extract lat long form WKT data and stores into arary list i have tried one solution which is proposed by a user but it has some problems String str = tv.getText().toString(); str = ...
4
votes
3answers
747 views

Search by street name/postcode in OpenLayers

Can anyone help me search by street name in OpenLayers? I essentially want to be able to search fir streets/postcodes in openlayers in the same way I can search on google maps. Is this possible. ...
5
votes
2answers
2k views

FWTools ogr2ogr in Python

I am trying to convert MapINFO tabs to ESRI Shapefiles using FW Tools. I downloaded the tools and can run the FW Tools Shell and convert no problem: ogr2ogr -f "ESRI Shapefile" ...
3
votes
1answer
1k views

How can I get my Qgis area calculations in metres rather than degrees? My shapefiles are projected using WGS 1984 UTM fuseau 35 Sud

I am using Qgis 1.7.4 to calculate the area of polygons. My shapefiles have been projected using the coordinate system WGS 1984 UTM fuseau 35 Sud, but my area calculations are still displayed in ...
3
votes
2answers
788 views

Updating polygon geometry: deleting inner rings with python

I've searched, but can't find clear explanations how can I simply delete inner rings from existing polygons with python or extract outter rings and overwrite the geometry. Seems GDAL/OGR should be the ...
2
votes
1answer
235 views

Problem Docking Add-In Toolbar in ArcGIS 10 SP4/5

I have developed an Add-In Toolbar for ArcGIS 10. It docks just fine on my development computer (which is running 10.0, no service packs according to ESRI's patch finder). It has been deployed to ...
2
votes
1answer
94 views

Error executing CQL on layer other then demo layers

I have some sort of wierd problem as I was playing with CQL. CQL works well with given layer but when i try with layer loaded from mapinfo or some views then it does not work. As in the picture when I ...
2
votes
1answer
155 views

Permissive Open source planarize algorithm?

Is there a permissive open source implementation out there for a "planarize" algorithm (in the style of arcgis planarize - including user modifiable cluster tolerance)? NB this is not a duplicate of ...
1
vote
4answers
1k views

How to find the center point of MULTILINESTRING?

How to find the center point of MULTILINESTRING, which lies on the multiline?
3
votes
1answer
574 views

Georeference problem including EPSG 102067 projection

I'm Qgis user from Czech Republic. We have a spatial national coordination system (Krovak system) having positive X axes pointing to the south and positive Y axes to the west. Many geographical ...
3
votes
1answer
403 views

WMS WMTS TMS Server Stress Tool

Someone knows about a tool that test the cpu usage, memory, IO Read/Write with MapProxy or a WMS, WMTS, TMS Server? Like a 'Web Stress tool' that test Server with concurrent clients request and ...
5
votes
1answer
784 views

Is there a purge function to remove layers from a qgs file which are not present in the Layers pane?

I have some QGIS projects that I've been using for long time, adding and removing layers, updating reference to deleted or moved files etc. Opening with a text editor the qgs file I see that it ...
3
votes
1answer
978 views

How to display a map from geoserver on a mobile device

I am attempting to display a map from geoserver on mobile device, for example an Android Smartphone. I have already set my map to geoserver via localhost, but I really don't know how to call the map ...
1
vote
1answer
327 views

I'm trying to zoom to a graphic, but nothing happens?

I'm trying to zoom to a graphic retuned from the query; query.OutSpatialReference = MyMap.SpatialReference; query.ReturnGeometry = true; After this query I used ...
0
votes
0answers
408 views

I wanted a tutorial link to start with geoserver and Postgis for ASP.NET

I wanted a reference material for coding using C# in ASP.net with geoserver and Postgis. Please tell me reference material for the same. I have searched for several reference material but did not ...

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