JavaScript is a prototype-based, object-oriented scripting language that is dynamic, weakly typed and has first-class functions.

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0
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1answer
230 views

PopUps for all the Feature layers

I am trying to create GeoExt action button to fetch the feature info from all the layers. I am still getting the info for my point features but I am getting nothing for the usa:states, that appears in ...
3
votes
1answer
5k views

SelectFeature with Double-Click

I have the ability to select features on the map with a click using OpenLayers.Control.SelectFeature. How can i add a double-click handler to that? I have tried modifying this code to suite my needs, ...
3
votes
1answer
332 views

ArcGIS Server 10 GP Service Cannot Download Result?

I have implement the ArcGIS JavaScript example just like the ESRI official example (clip and ship) .Everything was going right except the final step ,when the gp job have finish and my browser lead me ...
3
votes
2answers
8k views

How to redraw / refresh map on canvas resize?

I've created a web page that contains a button to set the map full screen and back to its normal form, the problem map doesn't set to full screen until I resize the output window, how to overcome ...
2
votes
2answers
2k views

How to read OpenLayers event object features?

This is part of an interface that uses a box to select features on a WMS Layer. This then writes the name of the features to a div as a list. var recycling = new OpenLayers.Layer.WMS( "Recycling ...
2
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1answer
564 views

Problems using 2 maps with multiple layers and loadend event

I have 2 or more maps with one ore n layers on each map. Now I want zoom to extent for each map, but the getDataExtent returns only for the last layer in the last map a bounds. Can you help me? Here ...
5
votes
1answer
5k views

How to open popup on mouseover in Leaflet? [duplicate]

Possible Duplicate: How to show a popup on mouse-over, not on click? I'm working with Leaflet library. I defined L.layerGroup and add some markers to the group. Can somebody help me with ...
0
votes
1answer
570 views

How to define image map with pins in Javascript?

I have image map in .png format. All I need to do is to add a sidebar where users click on for example "restaurants" and pins with restaurants will show on an image map. When user mouseover a pin, it ...
1
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0answers
294 views

What are some really cool web/mobile GIS UI examples? [closed]

I need some ideas on eye candy for our product. We have to display maps with lots of data on accessible through the web. Most sites I have seen have a Google, or OSM map with markers and layers ...
3
votes
1answer
588 views

How to hide some parts of an image layer with OpenLayers?

My Problem I'm currently displaying a layer image above a Google Maps base layer. I would like, when the user check/uncheck some checkboxes, that some parts of this image layer disappear, and the ...
2
votes
2answers
66 views

How can I create a new function inside a existent class in OpenLayers?

I want to add some functions inside a existent class in OpenLayers. For example, I want to add function A() and B() and a variable C inside OpenLayers.Layer.Vector. var X = function() { A() = ...
3
votes
1answer
535 views

How to show a point on mouse over a hidden polygon?

Any suggestions on how to show a point on mouse over a hidden polygon? A single kml file contains two polygons and two points as in the image, I've hidden these polygon and point by setting stylemap ...
2
votes
2answers
2k views

Openlayers: How to highlight a point on mouse over a line

Any suggestions on how to highlight a point on mouse over a line, I've read points from a javascript array, lines are drawn by using them and I want to highlight some points in that array by moving ...
2
votes
1answer
709 views

Syntax of WFS request in OpenLayers

I am in need of the correct syntax for loading WFS layer using OpenLayers. I have gone through many examples on the OpenLayers site and other examples, but can't figure out how to use the necessary ...
2
votes
1answer
619 views

Connect JSON to GeoExt Application

I am returning a JSON to a GeoExt app and this is the code that is collecting the return, var control = new OpenLayers.Control.Click({ trigger: function(evt) { ...
1
vote
2answers
632 views

Problem with panning and zooming in OpenLayers

I'm interested in detecting when a user moves or pans a map so that I can run a new query on a database based on their location. However, the following code causes the panning and zooming controls to ...
0
votes
2answers
4k views

Differences between ExtJS and Dojo Framework

I have been using OpenLayers and the ESRI's JavaScript API and found that both using different set of JavaScript libraries have some implications on the quality of application that they deliver. Dojo ...
0
votes
3answers
1k views

OpenLayers: Error message 404 (Not Found)

I've created a map using openlayers contains osm, google layers and some vector features, On loading it shows two errors like: GET http://tile.openstreetmap.org/0/0/1.png 404 (Not Found). How to ...
3
votes
2answers
3k views

Detecting map changes using Openlayers

Is it possible to delete a vector layer when a user pans or zooms a map? I saw in the documentation that there is a function called onMapResize. Can this also be used to detect a pan change? I want ...
2
votes
2answers
964 views

how to buffer inside a polygon in Javascript

I'd like to know if it's possible to buffer a polygon on the INSIDE only using OpenLayers and other Javascript tools (e.g. jsts). Here's what I found about the topic in general: Buffering INSIDE a ...
1
vote
1answer
145 views

Using AndNav tiles storage as input for OpenLayers.TMS

Is there a possibility to use map tiles from AndNav (created wit Mobile Atlas Creator) that are in format: Mapnik\12\2241\1369.png.andnav (I know that 12 is the zoom level but don't have idea what is ...
0
votes
2answers
373 views

How to change a marker on click

I've crated a map and tried, but it doesn't change until another event is caught or zooming map or by switching the browser tabs. What is the reason for this. please help me I've fiddle the code here ...
1
vote
1answer
2k views

map extent to show specific country

I use openlayers in my web app.I want to set map extent on specific country to show cities of that country but i don't know which option of map can show specific country in map!. How can i show ...
1
vote
1answer
120 views

Thematic maps on Non Spatial Data in MapGuide

I need to create the thematic map on a polygon layer. But the data is not available in the layer; I am using Postgres database for that. It means I need to create the themes on layer using non spatial ...
1
vote
0answers
23 views

Show vehicle traveled route as animation [duplicate]

Possible Duplicate: Animate feature in openlayers I create map web app with openlayers and yii php framework. I want to show vehicle traveled route as animation like below site in my ...
2
votes
0answers
355 views

Creating a Geodesic Polyline Buffer in OpenLayers

I have a feeling that the answer is going to be 'You can't do that without some very complex coding' but I thought I'd go for it anyway. I recently asked a question on how to create a Polyline Buffer ...
1
vote
1answer
1k views

OpenLayers : Map not loading

If i use a single wmslayer as map baselayer it loads the map, but adding different layers like (google,yahoo) to map it won't works. Can anyone tell me how to overcome this.. thanks in advance.. ...
1
vote
0answers
601 views

OpenLayers: Click event to display position shows Uncaught TypeError: Cannot call method 'getLonLatFromPixel'

I have created a map using openlayrs, and put a click event to display its position in screen, when i clicked got an error message like Uncaught TypeError: Cannot call method 'getLonLatFromPixel' of ...
5
votes
6answers
457 views

Is anyone using JSONP in Web mapping applications to get around the browser same origin policy?

Javascript based Web mapping apps that use ajax requests to get data from a server are limited by the Same Origin Policy to only request the data from a server in the same domain (subdomain and port). ...
6
votes
1answer
2k views

Add a OpenStreetMaps road data layer on Google Maps API v3

I've successfully embedded a Google Maps API v3 map on my site, and added OpenStreetMaps (OSM) as the base layer. Is it possible to use Google's tiles as the base layer, and then overlay street data ...
1
vote
1answer
462 views

OpenLayers ModifyFeature for multiple layers

Is it possible to configure the ModifyFeature control to edit features in multiple layers?
2
votes
1answer
1k views

Polymaps Project + Geojson + D3

How are you doing ? I am Mehul Nahar working on a project which is similar to http://www.tableausoftware.com/learning/examples/gpa-analysis. I have used Polymaps platform, where I have used cloudmade ...
1
vote
1answer
954 views

Toggling feature visibility in Openlayers + GeoExt

I'm setting up a small web mapping application using PostGIS + mod_tile + FeatureServer + OpenLayers + GeoExt, each of which I'm learning as I go. In addition to the base layer, I've pulled in a few ...
3
votes
2answers
1k views

Zoom after apply CQL_FILTER in OpenLayers

I apply a filter to one layer and works nice. I want to maximize the bounds where I applied the filter, like this: // mapbounds = array(minx,miny,maxx,maxy) activeLayer = new OpenLayers.Layer.WMS( ...
6
votes
1answer
738 views

What does maps.nokia.com use?

The maps on maps.nokia.com are pretty amazing. I assume they're generating their own tiles but, does anyone know about the infrastructure behind site: the tile server used? and their JavaScript ...
2
votes
2answers
195 views

Using DrawFeature to draw a line between features

I have a DrawFeature control that I want use to draw a line between two features (on a separate layer from the lines). I use a Snapping control to snap the cursor to the features. Any ideas on how ...
4
votes
2answers
3k views

Clickable points with openlayers

I'm trying to have some very basic functionality with vector points with Openlayers 2.12 and I can't figure out how to track a click event on a point. I create a map using the following code and add ...
3
votes
2answers
1k views

Getting json feature id on OpenLayers

I'm projecting some features using json format on OpenLayers. I need to get the id from the feature (not the OpenLayers' id but the one in the json file). The file looks something like this. ...
1
vote
1answer
521 views

Draw svg-circle on a coordinate with polymaps

I'm making a tracker system which uses polymaps to display a satellite image. The code is copied from the bing-example on the website of polymaps. I now want to periodically call an update function ...
1
vote
1answer
154 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() && ...
1
vote
1answer
409 views

Set attributes for newly created features in OpenLayers

I have a vector layer and label: "${title}" is used as one of style property for its rendering. Is it possible to set feature.attribute.title property before feature will be drawn by DrawFeature ...
5
votes
2answers
509 views

Can overlays have different resolutions from the base layer?

I am trying to show a regional map on top of base map but without success. While debugging I noticed that my regional map has a different set of resolutions from the base. Is this allowed in ...
1
vote
0answers
562 views

Multiple Google fusion table layers with queries using javascript

I am making a web mapping application using Google fusion tables and JavaScript. Earlier I had only one Layer on it, but now I have to put another layer. Both the layers have bunch of queries. I am ...
2
votes
0answers
746 views

Dynamic Contour generation and project on google maps

Is it possible to generate contour map layer at runtime and overlap or project on google maps. I am using google map api v3 and want to generate contour map layer using data from sql server and ...
2
votes
1answer
303 views

How to generate thumbnails from shape file and display them on my website?

I tried to generate thumbnails from shape file and display them on my website(using jsp).I had been read this and this question .Very similarity questions ,but I know nothing about python... Is ...
2
votes
2answers
449 views

How to pull lat/lng from a map canvas and update a database

So if i want to pull out lat/lngs after user clicks on a map canvas (lat/lngs are pulled using any javascript API (leaflet, wax etc.) and add this to a postgresql database using a query, how do i do ...
1
vote
1answer
3k views

Click to Hover for WMSGetFeatureInfo

I am using the following code and wanted to know how I can change it from click event to hover or mousemove event. I know there is a eventListner but I am unable to locate the click event where I must ...
3
votes
1answer
499 views

Making calls the PostGIS functions with Java

We have Java stored procedure in Oracle that make calls to functions offered by Oracle Spatial to perform spatial analysis and return results. I am looking to the same in PostGIS, is this possible?
4
votes
2answers
3k views

Prevent OpenLayers WMS layer cache by browser

I am using OpenLayers (GeoExt) with google chrome browser. All WMS layer is for live database. I have refreshed the browser at certain interval using javascript but the data is cached in browser and ...
3
votes
2answers
752 views

OpenLayers dynamic rules defintion & clone function filter

I'm developing on a OpenLayers application which creates dynamic rules for a vector layer using the geostats library. I want to create these rules inside a simple loop through the number of classes. ...