5
votes
1answer
1k views

Raster data on PostGIS

I need to publish raster and vector data through GeoServer WMS service and I have already chosen PostGIS as datasource to keep vector data. Now I would like to know what is the best practice to work ...
1
vote
1answer
1k views

How to draw a line with pop-up in OpenLayers?

How to draw a line with pop-up in OpenLayers? For markers with pop-up i do so: var lonLat = new OpenLayers.LonLat(lon, lat).transform(new OpenLayers.Projection("EPSG:4326"), ...
6
votes
1answer
629 views

Where are the Expression-based Labeling options in QGIS?

I have imported a layer into my map to show the location of towns/cities. However I had to set graduated styling so that only cities over a certain population show. I now want to label the ones that ...
2
votes
0answers
193 views

Submodel not executing within main model

My main model contains the following: Workspace variable Input GDB Feature class Input Feature Class SubModel 1 that produces OUTPUT feature class Parse Path is used to obtain the name from the ...
13
votes
2answers
343 views

Opensource solutions for finishing maps

After seeing the $600 price tag for Adobe Illustrator, I am especially interested in learning open source solutions for finishing maps created in a GIS. What open source, or commonly available, ...
3
votes
1answer
2k views

How to create cross-sections in ArcGIS?

I have some problems to find the correct tools for a university project I am working on. Would be really nice if someone could help me to find the right tools. Is there the possibility if I have a ...
5
votes
1answer
3k views

Is there a way to export QGIS layers to KML?

has had anyone had any luck with the new experimental plugin qgis2kml? I keep getting the error msg layer : format not yet supported I had a look but the author has not provided any documentation, ...
2
votes
1answer
1k views

Plotting latitude on to a (Mercator projection) SVG representing a country map

I want to convert (google sourced) longitude and latitude coordinates to x and y to place points on a SVG map I can get the longitude converted to X but I can't nail latitude. ...
3
votes
2answers
1k views

Select Duplicate Points PostGIS

I have a table made of merged point datasets in PostGIS. I want to select all of the features where two or more points have identical geom values. At present I just want to select so I can review ...
1
vote
1answer
222 views

How do i get ArcObjects not to ignore a layer definition that has been set?

I am creating a simple text search application, where the user can enter an address search and the result appear in a listbox, which they can then select it and zoom to the address. Now the problem I ...
16
votes
2answers
9k views

How to change the geometry type from Point to Multipoint within an existing table in PostGIS?

Is there a PostGIS function that can change geometry type for an existing table? We need to change from POINT to MULTIPOINT. The table will be empty when we change the geometry type and we cannot ...
2
votes
1answer
153 views

ERROR Add Basemap using Arcmap10

When i have to use Bing Map Aerial, it will come NVIDIA error, then closed on main page. how to solve this problem? thanks to advance
2
votes
2answers
552 views

QGIS – Batch maps (atlas plugin style) in same location

I've got more than 200 shapefiles of points representing different information for the same location. I would like to make as many maps as shapefiles with identical background and extent. I'd rather ...
0
votes
1answer
406 views

one row is discarded while importing shapefile into postgres

Please help me in following issue. I need to import a polyline shapefile into Postgres9.1 through shp2pgsql command.When i did like this, i got an error as "NOTICE: CREATE TABLE will create ...
2
votes
2answers
617 views

Selecting Part of a Polygon

I have a dataset, in shapefile format, for agricultural land grades in England. It is divided into 7 categories in its attribute table. As the file is a large file and I only want a small section I ...
4
votes
1answer
385 views

Self-intersecting polygon using extreme values

I have this polygon POLYGON((1.2E-15 1.1E-15,1.31E-15 1.21E-15,-180 -90,180 90,1.2E-15 1.1E-15)) It uses an extreme coordinates like (1.2E-15 1.1E-15) and (180 90) When I call ST_isValidReason, ...
1
vote
1answer
157 views

File Upload with GeoEXT FormPanel

I have a GeoExt form and want to do file upload here. But i never work with GeoEXT. I have this. buttons: [{ text: 'Загрузить', handler: function(){ if(fp.getForm().isValid() && ...
3
votes
2answers
2k views

How to change the vertex style for editing?

When I use drag feature, then the circles on the polygon edge has the same style. For example, this OpenLayers site. I need to change it, I mean they need to be a different color. What is their ...
1
vote
0answers
212 views

Applying colormap to grayscale tiff image using java

I have a gray scale tiff image.Now i want to add some pseudo colors i.e for pixels whose DN from 0-140, red color;DN from 141-255 ,blue color.Please tell me how to modify the raster table.Otherwise if ...
4
votes
1answer
408 views

How to Load RDF Data to PostGIS?

I want to load some sample RDF (Relational Data Format) to POSTGIS. Are there any tools or methods to do this.
1
vote
0answers
119 views

Wrong data with FEATURE_COUNT=1 for GetFeatureInfo

When I am querying the WMS service with FEATURE_COUNT=1 then I get the wrong meta data. Once I make FEATURE_COUNT=2 then first row contains the correct data. I am executing the URL directly in ...
0
votes
1answer
848 views

GeoExt 2 - Extjs 4

As a complement to my previous post : http://stackoverflow.com/questions/11309998/extjs-4-with-geoext-libraries-issue i can't find a css file for GeoExt 2 here : https://github.com/geoext/geoext2 i ...
2
votes
1answer
510 views

Extensions not installed in ArcGIS 10

I have the trial version of ArcGIS 10 (ArcEditor licence). The trial automatically installs and authorises all extensions for the trial period. However, in ArcMap I can only see Maplex, 3D Analyst and ...
3
votes
1answer
1k views

Why can't I download the georeferencing plugin for QGIS 1.7.4?

I used the georeferencing plugin with QGIS 1.6 and now that I've upgraded to 1.7.4 I'd like to do it again. But when I search for the georeferencer plugin, it's not available! Am I doing something ...
2
votes
1answer
3k views

Offsetting symbology position in ArcGIS Desktop?

My data of polylines has lots of attributes to be rendered with a symbology, I made it such that each attribute of interest would be a layer. I would like to display each of these layers at the same ...
2
votes
2answers
661 views

Converting ArcGIS style (symbology) to font for MapInfo/OpenGeo?

This is related to Retain ESRI symbology in Mapinfo TAB As a workaround I am wondering if I can save all my ESRI symbology from the lyr files created using the script below to an ESRI style sheet and ...
0
votes
1answer
337 views

How to cluster kml features in OpenLayers

Is it possible to cluster KML features in OpenLayers, and are there any samples? I can find separate samples for clusters and KML but nothing which handles both together. Thanks
4
votes
2answers
575 views

Why isn't valid geometry not valid in NetTopologySuite when close to poles?

I have a Polygon which crosses the south pole: Polygon in WKT: POLYGON((5.86826073458095 75.6638564054071,-16.5436836399021 63.2220742891438,-19.3664667294083 59.846221066959,-21.7009816876343 ...
5
votes
1answer
603 views

What is the unit of measurement for buffer calculation?

What is the unit of measurement used by Geometry class for it's buffer calculation ? Api doc currently defines it as " distance - the width of the buffer (may be positive, negative or 0)" I need to ...
2
votes
0answers
203 views

How to decode Magellan URL coordinates to lat/lon

Magellan uses this URL to designate a coordinate in New York: mgn:///address/?coord=merwFvlqbM,name=Viva%20Herbals%20Pizzeria,number=179,street=2nd%20Avenue,city=New%20York,country=US How can I ...
3
votes
1answer
762 views

Looping based on a spreasheet using python (in ArcGIS 9.3)

Here's what I am trying to do: I want to move feature classes from one .gdb (OLD) to another (NEW), but only the feature classes that are present in an excel spreadsheet. read from excel spreasheet ...
2
votes
1answer
2k views

How to insert google maps lat/lng into postgis in geometry datatype

I came across: https://developers.google.com/maps/articles/phpsqlinfo_v3 I've changed the code a bit and all process is well done for postgis database. I get the data from infobox when user clicked. ...
4
votes
1answer
352 views

Counting and Storing Event Data Contained Within a Polygon (Using Python)

I have a fairly large project and I would like to automate some tasks using Python. Problem is, I don’t have any experience with Python for ArcGIS. And I rarely use ArcGIS until something big like ...
5
votes
3answers
564 views

How do I specify the position, style and units of the ScaleBar in pyqgis?

I would like to add a scale bar to my composition using the python console and then export it to a raster image. I am following the MapRendering tutorial with the "output using map composer " approach ...
0
votes
1answer
79 views

Geoservers communicating with other Geoservers

I am able to connect to multiple Geoservers using the Geonetwork but is it possible for two Geoservers to communicate with each other without the Geonetwork?
2
votes
2answers
813 views

ArcGIS Geoprocessing Script runs fine in Desktop but crashes as Geoprocessing Service?

I have a small and simple geoprocessing script that I am trying to expose as a geoprocessing service in ArcGIS Server 10 SP4. The script is below. Pardon the hard-coding... With the hard-coded ...
3
votes
2answers
531 views

Google/OSM style map layer labels

I am currently using the OpenLayers plugin to import google maps as the base layer for a heat map. The map is of population by census tract. The more populous census tracts are red and less populous ...
0
votes
1answer
303 views

EPSG:3035 wms layer over google maps or OSM

Is it possible to put EPSG:3035 wms layer over google maps or OSM? I managed to do this, but my wms layer is placed differently then google maps or osm. I assume, google maps/osm uses different ...
10
votes
2answers
3k views

Running QGis from flash drive

How can I setup a portable QGis to run from a flash drive / USB-Stick? In the userguide for QGis 1.7 Wroclaw there is only mentioned the option of "--configpath". But to me it is not clear how to deal ...
1
vote
1answer
237 views

gdal_retile - Out of range band requested

I'm using gdal_retile to create ImagePyramid from a set of GeoTIFF images. I'm using following command: gdal_retile.py -v -r bilinear -levels 8 -ps 2048 2048 -co "TILED=YES" -co "COMPRESS=JPEG" ...
0
votes
0answers
48 views

Comparison components open source GIS [duplicate]

Possible Duplicate: Comparison of Open Source Desktop GIS Packages I'm doing a little research to the available open source GIS-applications. I found a lot of OSGIS on the internet and now ...
3
votes
3answers
2k views

Missing tools (icons) QGIS

I lost selection and navigation tools from the GGIS 1.8 toolbar when I tried drag then to different place. I can't get them back anymore. Where they disappear? All these tools are checked but are ...
5
votes
1answer
810 views

Raster processing with Python or Arc raster calculator

I have 4-band NAIP imagery that require the following processing steps: Convert to 8 bit unsigned B/W Reverse (note not inverse) the image, so that dark values appear light and light values appear ...
0
votes
1answer
141 views

Retrieve data from table for spatial queries in PostGIS

We just want to write some spatial queries for our PostGIS tables, but we can only write queries with geometry columni like (POINT(36 43). Assume that we have two columns like geom and name, we want ...
1
vote
2answers
5k views

Show pop-up where user clicked in OpenLayers

How to change this example ( http://openlayers.org/dev/examples/select-feature-openpopup.html ) so that when the user clicks on a line (feature) pop-up display where the user clicked? A few days ...
2
votes
0answers
617 views

How to assign values to a polygon layer based on nearest point in a point layer? [closed]

I have a point file depicting groundstations for rainfall measurment. I also have a polygon file representing districts of a state. I want to assign rainfall values in a particular district based on ...
4
votes
3answers
422 views

Is it ok to replace “#” in address with “Suite” for millions of addresses of businesses?

I have a big list of addresses of businesses that I am trying to "normalize". What keeps happening is that, every now and then I verify the address of the place by going to their website and all too ...
4
votes
1answer
685 views

How to load a postgres view using pyQgis?

Under Qgis 1.8 on Windows 7 I have this problem with my pyArchInit plugin: I need to load on the map canvas my geometries from a postgis layer. Till the 1.7.4 version I use the method explained on the ...
1
vote
1answer
1k views

ArcGIS Server 10 Javascript API Offline

Is there anyway to have all the required files of JS API ? because i have a local application and the user wont be able to have the resources from serverapi.arcgisonline.com
1
vote
0answers
625 views

openlayers wms loaderror event get response text of

1.How do I get the http response text & error code from OpenLayers 2.12 WMS loaderror event ? 2.The WMS request returns returns http error code 500 with some response text, however, as per image ...

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