7
votes
0answers
430 views

Geoserver WMS-T backend problems [closed]

I've been trying to set up a few timed WMS layers in GeoServer. They're simple enough, of the form ID(PRIMARY KEY) REGION DATE VALUE so for every region and date you have some value, e.g. the ...
3
votes
0answers
394 views

Getting layers from SDE with vba

Im running arcmap 9.1. i have the code that lists feature classes in a list box from the SDE. The users select from one list box and adds it to another list box. How do i get it to show the layer name ...
2
votes
1answer
232 views

Highlighting Link in OpenLayers Map dynamically

I'm having a map which is rendered through OpenLayers using GeoServer. The map contains various attribute data field like link_no, X_coord, Y_coord etc. I want to highlight the link using link_no. I ...
4
votes
2answers
2k views

OpenLayers: adding a loading indicator for WMS requests

I'm new to Openlayers and GIS in general. I have a WMS request followed by the addLayer method, and surrounded by the addition and deletion of a 'loading' class to an HTML element: $(toggle).parent('...
9
votes
5answers
5k views

How to modify single Pixel values in QGIS?

I would like to modify a raster (pixel values) in QGIS. The plugins "value tools" can easily provide me with the value of the pixel of my raster. However I don't know how to modify it. I have found ...
3
votes
1answer
2k views

How to fix 'GEOSDifference: TopologyException'?

Why does Postgis throws an error in this SQL? Error: ERROR: GEOSDifference: TopologyException: found non-noded intersection between LINESTRING (-5.67027 43.5374, -5.67085 43.5376) and LINESTRING (-...
4
votes
0answers
195 views

Create a filter for an attribute having multiple values

I am new to WFS and am trying to create a filter to get all the features that have their basename = "XYZ". The structure of a single record is as: <gml:featureMember> <core:...
4
votes
3answers
930 views

Programmatically creating exports from PostGIS database into different file formats (e.g. shapefile, dxf, dgn,…)?

Is there a kind of wrapper/library written in python which would enable me to programatically create exports from postgis database into different file formats (most common being, shapefile, dxf, dgn,.....
6
votes
1answer
8k views

Converting Shapefile to MySQL?

I have used Grass GIS imported a .shp file; I now want to export this file to MySQL. I understood that MySQL will contain the function of all three the files necessary in a Shape file system (.shp - ...
3
votes
1answer
801 views

Which parameter values should I use with QGIS Heatmap plugin?

I've read all the posts and docs about the heatmap plugin but can't seem to get it to work. The map is the size of the United States and has a little over 2000 points. I've tried small radi (1 meter)...
2
votes
0answers
200 views

How to identify each circles in Google Maps API?

By the Google Maps Drawing API, I can create lot of circle and other shapes. addListner method helps to get the radius, latitude and longitude of the circle. Now I want to identify each circle for ...
1
vote
0answers
19 views

Raster to Vector seems not to work [duplicate]

Possible Duplicate: Qgis polygonize problem - DLL load fail When I'm trying to invoke the Polygonize Module in the Raster Tab I get the following error message (I did give bothe the source ...
6
votes
2answers
2k views

Describing a coordinate system in arcpy

I have a python script in ArcGIS 10.1 which takes in a few inputs from the user. One of the inputs is a coordinate system. I would like to test whether the coordinate system the user chose was ...
1
vote
1answer
110 views

OGC webservice engine like geoserver in .NET

In java there are a lots of third part libraries which can used to create OGC webserivce like wcs/wfs/wms etc. However I have not found anything similar in .NET. We are currently using ArcGIS Engine,...
4
votes
2answers
846 views

How to improve the cartographic design of graticules?

The attached image shows a conflict between the graticule and the state boundary on a map. I have not found a way to display user-defined lines of latitude, which would solve the 42 degree line ...
7
votes
3answers
2k views

What's the simplest way to style vector data in Geoserver?

There seem to be three main options: Manually write the SLD files, based on the SLD cookbook Create the SLD file in QGIS, then import Use the add-on GeoExplorer to create custom styles online ...
2
votes
1answer
822 views

GML and GeoJSON vector layer can not display in Firefox and Chrome

I have following codes. It works perfectly in IE (GML and GeoJSON vector layer was loaded), but not in Firefox and Chrome without any errors noticed. Please help me to fix this problem. Here is the ...
2
votes
1answer
725 views

Requesting map tiles from a wms server in epsg:900913 fails

I'm trying to figure out how to query a WMS server by using latitude/longitude coordinates. The reason is I'm trying to create an iPhone application and overlay custom tiles with data from the WMS ...
1
vote
0answers
589 views

How can I show MapInfo tabs in OpenLayers without using MapXtreme Tile Handler?

I want to connect OpenLayers to mapinfo tabs I have , but I don't have MapXtreme license . Is there a way to show the tabs using different Tile Cache ? I can export the workspace to WOR or MWS files. ...
2
votes
3answers
2k views

How to make zooming for OpenStreetMap in OpenLayers more sensitive to mouse wheel scrolling?

I have been testing OpenLayers for a while and I notice that the scrolling on OpenStreetMap layer does not make the map zoom in or out as much as I would like it to be. On most occasions, I am only ...
4
votes
3answers
2k views

What's the difference between US Census DMA and MMA?

DMA and MMA are commonly used to denote a large, metropolitan municipal entity. Is there a difference between the two? Is there a certified definition to these terms? Google is a bit inconclusive ...
2
votes
1answer
315 views

ArcObjects bug in OID field duplication while duplicating feature class?

I have a shapefile with a column of type esriFieldTypeOID with the name FID and numbers from 0 to 5 (the first odd think is that ArcMap does not show a * next to the column name in the table view even ...
4
votes
2answers
2k views

ArcMap's “Join Field” tool takes so long when just “Joining” works instantly. Help?

I'm using ArcMap and I'm trying to write a script that automates a join and then does some reporting. I'm not very experienced with joins and I'm running into a problem. When I do a join manually (...
4
votes
1answer
630 views

How to force sql server to use the spatial index?

I'm beginner with SQL Server (2012). I created a spatial index, and I'm trying to force SQL Server to use that index to solve the query. Here's what I have: DECLARE @g geography SET @g = geography::...
2
votes
1answer
317 views

QGIS & GeoTIFF clipping Error “-srcwin 5897 137 0 0 falls outside raster size of 11083x4158 or is otherwise illegal.”

I'm trying to clip a GeoTIFF file and unfortunately I'm getting the following Error "-srcwin 5897 137 0 0 falls outside raster size of 11083x4158 or is otherwise illegal." From another post ...
5
votes
3answers
2k views

Is Geoserver's “styler” plugin dead?

The "Styler" plugin for Geoserver promised flexible styling of your data, using the GeoExt library: The user guide tells you to first install the REST plugin, and then extract the styler zip file ...
9
votes
3answers
3k views

Where can I find latitude and longitude data for the borders of U.S. Congressional districts?

I'm interested in finding the most up-to-date latitude and longitude data for U.S. Congressional district borders. I'd prefer a human readable format (e.g. XML), but I'm writing my own code so I can ...
2
votes
1answer
81 views

Are there any document icons for the qgis mimetype?

In a default Ubuntu install (QGIS 1.8.0) no document icon is associated with the mimetype 'application/x-qgis-project'. As a consequence every saved QGIS document is interpreted by the OS as being a ...
1
vote
2answers
817 views

OpenLayers FramedCloud has transparent background

I am creating a FrameCloud popup instance and adding to the map using the following code: var popup = new OpenLayers.Popup.FramedCloud("popup", point, null, ...
1
vote
0answers
54 views

Sextante QGIS configuration issues [duplicate]

Possible Duplicate: Problem with Orfeo Toolbox integration in QGIS I am trying to do is how is shown in this link: http://www.youtube.com/watch?v=XcAQDFtkbdk I did that steps after steps and ...
4
votes
1answer
2k views

Java client for WFS-T?

I have a geoserver with a postgis database on one server and an Java application on a different server. Now I need to connect these two servers so that the Java application can manage (create, alter ...
6
votes
2answers
1k views

PostGIS - area-weighted calculation on an intersection

I'm trying to learn postgis sql by performing some familiar operations from ArcGIS. Here, I want to perform an area-weighted calculation of certain populations on the intersection of a set of parcels ...
2
votes
1answer
378 views

How to convert NAV4 coordinate system to WGS84?

I would like to know whether it is possible to convert the coordinates given in a NAV4 coordinates system into WGS84. I could not find out what NAV4 is and if it is actually a standardized CRS. Here ...
3
votes
2answers
429 views

Calculating surface using Lambert correction?

i'm using lambert conformal conic , so we have distortions along any given parallel , i would like to get the area used to solve this distortion. I have calculated the area using Shoelace formula , ...
11
votes
2answers
4k views

How to split shapefile per feature in Python using GDAL?

is it possible to split a shapefile per feature in python? (best would be a solution where i can temporarily save the resulting vector objects to the memory instead to disk). The reason: I want to ...
4
votes
1answer
3k views

How to get all Vector layers from OpenLayers map?

OpenLayers.Map object exposes a method call getLayersByClass. How do I use this method to retrieve all of the Vector layers from the map? I tried map.getLayersByClass("Vector") but this returned an ...
3
votes
1answer
104 views

Projectionless shapefile with unknown source

I have a bunch of maps that are output from a land use model in .asc format, but none have a projection file associated. The person who originally ran the LU model is long gone, so I don't have access ...
1
vote
1answer
483 views

Small Idea to get best path between two points

Guys I don't know if its a good place to post ideas or to ask general questions. Still as the question is related with maps service, I am posting it here. If it's not the right place, please move me ...
1
vote
1answer
84 views

Implementing topology rule Line Feature Class should not overlap with Polygon Feature Class in ArcGIS Desktop?

Is there a way to setup such a rule in ArcMap 10 Topology that Line Feature Class features shouldn't overlap with Polygon Feature Class features?
2
votes
1answer
502 views

Creating dynamically multiple layers in ArcGIS for Server?

I am using ArcGIS Server 10.1 and Desktop 10.1 software. I am publishing table from sqlserver to the ArcGIS server, that table (from sqlserver) is updating hourly, and the types are increasing. I ...
5
votes
1answer
220 views

Which polygons surround this point? A practical case of political geography

I'm starting a project from scratch but am budget constrained. In plain language I've got no money. What I want is to provide an address and return what governments have jurisdiction there. The ...
1
vote
1answer
219 views

How can i symbolize a map dynamically by data stored in mysql database in many tables (these tables have relationship through Primary Key and FK)

How can i symbolize a map dynamically by data stored in mysql database in many tables (these tables have relationship through Primary Key and FK). For instance "Disease Name"(chosen from drop down ...
2
votes
2answers
283 views

How can a style be set on a specific polygon using OpenLayers?

Using a polygon id, I want to highlight a polygon, while the mouse is outside of the map area. I can identify the polygon using the following approach: x = 53; for(i=0; i<vector_layer.features....
1
vote
0answers
380 views

Error when opening attribute table of a feature layer with a programmatically generated join

I'm creating a query table with IQueryDef and then using MemoryRelationshipClassFactory to create an inner join between a feature layer and the query table. Both the query table and the join are ...
1
vote
0answers
309 views

How to enable tilestache-seed logging?

We're migrating from a working 'tilecache' server to a new 'tilestache' server. I have been chasing my tail for 2 days now trying to figure out how to get tilestache-seed to cache some tiles. I'm ...
10
votes
2answers
3k views

To Use or Not to Use Relationship Classes?

I am building a government database from a massive amount of data. Now I am following the standard approach of the ESRI Local Government Data Model, but modified to fits the needs and wants of a ...
3
votes
1answer
5k views

How can GeoJson polygons be colored programmatically using OpenLayers?

I'm experimenting with dynamically setting the color values of a geojson polygon. In my geojson file, there is an attribute for each polygon called pop_den. I am trying to update the fillcolor of the ...
1
vote
1answer
195 views

What is a good learning source for programmer who wants to understand the infrastrucre of map based web map?

I want to to write a simple web app with a map (tile cache because of hi res raster) that once a user click the map he can do some queries on it (as in search in polygon , radius , nearest ) on the ...
2
votes
0answers
311 views

AxSymbologyControl via WindowsFormsHost in WPF (ArcMap Add In Project)

I need a way to offer the user a choice of color ramps for the ClassBreaksRenderer. I came across the AxSymbologyControl which was designed for WinForms. I tried also ESRIs (WinForms) example project ...
3
votes
2answers
817 views

How to surround a clipped raster with transparency? (gdalwarp)

I am trying to perform the following task, but it does not seem to work: I have got a raster file (raster.tif) containing an aerial photo, which I want to clip using a Shape file (clip.shp) that ...

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