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

learn more… | top users | synonyms (1)

2
votes
1answer
102 views

Is there a Deployment build of GeoExt 1.1?

The latest version of GeoExt that is available for download at http://geoext.org/downloads.html (version 1.1) appears to be a development version. They are individual files with whitespace and ...
2
votes
2answers
3k views

How to label GeoJSON polygons?

I'm using Leaflet combined with GeoJSON features. Is there a way to label GeoJSON features (in this case - polygons)? It should get labels from feature.properties.name This is my code where I ...
1
vote
2answers
4k views

How to get GeoJSON features using OpenLayers?

Can anybody explain how to get geojson features .Can somebody show way to get attributes from geojson text. OpenLayers.ProxyHost = "/gt/proxy.cgi?url="; var lon = 5; var lat = 44; var ...
-1
votes
2answers
244 views

Go to the URL on click with GeoJSON

I'm using Leaflet API and geojson. I defined a function which zooms to the feature when clicked: function zoomToFeature(e) { map.fitBounds(e.target.getBounds()); } function ...
4
votes
1answer
1k views

How to set map rotation in ArcGIS Javascript API?

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 ...
1
vote
0answers
408 views

translating and scaling viewport to fit geojson map in D3js

I am trying to load a map of Rio de Janeiro (Brazil) in GeoJson for with D3js the code and the map is here: https://gist.github.com/4157853 I can open the map normally with Qgis, but with d3js ...
4
votes
1answer
714 views

ArcGIS Javascript API - Return 'normal' map extents when panning around the world

ArcGIS Javascript API maps allow the user to pan around the world, which is a great feature, however I am performing some processes that rely on map extents. I have discovered that despite the ...
2
votes
2answers
453 views

Insert Javascript code in Popup.FramedCloud?

I would like to have a live stream from a web camera in a Popup.FramedCloud. All I need to do is to insert this code in the HTML code parameter for popup: <script ...
2
votes
0answers
322 views

How to use javascript in fusion tables to query

I'm having a quite bit of difficulty creating some functions for my fusion tables. I have two tables here: Points Parcels I'm trying to create a number of functions: 1) I want to be able to select ...
3
votes
1answer
1k views

How do I project my WMS tilelayer in leaflet if I want it to display as an overlay on my basemap if they have different EPSG?

So my basemap is a world Mercator projection and in wfs format and I'm trying to put a WMS overlay in a different projection over it? Leaflet's API didn't give me much info on changing the epsg so is ...
2
votes
0answers
473 views

Openlayers text layer is not working

I am trying to load markers from a text file using openlayers text layer, but no marker is shown, text file and icons are in same directory. However I am able to show markers using marker layer. My ...
10
votes
2answers
12k views

Adding/Removing Leaflet GeoJSON layers

I'm trying to show different GeoJSON layers at different zoom layers using the Leaflet API. I can load and display all three layers at once (though I don't actually want them all to show at once). I ...
-1
votes
1answer
190 views

Map not displaying from Javascript using fusion table

I have this javascript which I am working on but the map in the HTML is just not displaying. I have a similar fusion table with layer_1 which is displaying fine but when I put layer-2 instead of ...
1
vote
0answers
235 views

Layer set visible

I add this layer like this: var POIData = new esri.layers.ArcGISDynamicMapServiceLayer("https://mysite.com/ArcGIS/rest/services/POI_Data/MapServer"); map.addLayer(POIData); ...
1
vote
0answers
124 views

adding WMS service to application ArcGIS JS api

I've got map in projection: 4326 (WGS-84) when I try to add WMS layers which is in different projection I always get connection timeout Do you know if I could change WMS projection to set it up ...
1
vote
1answer
804 views

Does leaflet support wms tile layers in applications/openlayers formats?

I am trying to create a tilelayer.wms overlay on top of a wfs base map and I wasn't sure whether leaflet allows the applications/openlayers type of format which I served up from geoserver or only ...
0
votes
1answer
63 views

What kind of different results or what is the difference between two URL based WMS requests [closed]

I am trying to retrieve some WMS layers from geoserver so that I can display them in leaflet and I need to populate a URL field and I noticed that many of the layers that I opened up in openlayers had ...
2
votes
2answers
187 views

Can PHP be used to set the XY, zoom of a Mapbox.js map?

All, Is there a way to set the xy and zoom level of a map using the URL of the site that is calling it? I'm thinking of a site I'm using now, built on php, which has mapbox maps built in javascript ...
3
votes
0answers
257 views

How do I format tilelayer.wms url properties such that I add an overlay iteratively to my base map in leaflet

My base map was created using hard-coded template variables. I am using the leaflet tilelayer.wms constructor and including the url like so: url: ...
0
votes
1answer
238 views

Looking for free sdk/lib/framework for UI for openlayers app

I'm looking for free UI lib/sdk/framework to make openlayers app that I can have the map in one panel , the layer control in other panel and maybe hovering tool bar (instead of putting buttons on the ...
0
votes
2answers
4k views

How to delete polygon in Openlayers

I would like to delete my polygon in Openlayers after i have drawn it. <html xmlns="http://www.w3.org/1999/xhtml"> <head> <style type="text/css"> html, body, #map { ...
3
votes
1answer
207 views

is there an API-level error handler in the ArcGIS Server JS API?

I'm seeing an error message in FireBug: Error: Internal kml parser error.http://serverapi.arcgisonline.com/js.../?v=3.2compact Line 34 I'm not worried about fixing this error for the moment - I'd ...
3
votes
1answer
3k 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 ...
2
votes
0answers
66 views

Features disapearing

When I add a polygon feature it shows on the map. When I add another one the first one disappears. The code for adding is below: $.postJSON('@Url.Action("GetLayers")', { "planId": planId }, ...
4
votes
1answer
901 views

Using PHP and JavaScript to dynamically create shapefile or KML

While I have used GIS software (ArcGIS and just started playing with QGIS at home), I have never looked into the code or file structure of shapefiles. I am working on a project for my work, a ...
3
votes
2answers
673 views

How to speed up the process of vector data visualization for a web application

I have a GIS web application and vector data that is going from the model to the web application. For developing the User Interface I am using JavaScript and OpenLayers. But sometimes the amount of ...
7
votes
3answers
10k views

Creating a Bing and Google Tile Layer for Leaflet

I want to use the Leaflet Javascript Library to display both a Google and Bing Tile Layer, though I'm unsure how to construct the url. The documentation shows an example using OSM: var cloudmadeUrl = ...
3
votes
0answers
839 views

leaflet - Drawing line following the road

Short version: What I wish to be able to do is drawing a polyline along part of a road. In that way marking certain houses, along this road. Long Version: I have several houses that I wish to mark ...
2
votes
2answers
958 views

Load One Layer from ArcGIS Server MapServer

I am pretty new to ArcGIS Server and am building a map applications using the Javascript API. I can easily load the map layer below by adding it as a ArcGISDynamicMapServiceLayer ...
2
votes
2answers
572 views

Insert a loading message into DataGrid

I'd like to show a loading message (Loading...) that shows while the datagrid is being populated. It would show when the search button is clicked and disappear when the grid results have populated. ...
4
votes
2answers
1k views

ArcGIS JS API Edit Toolbar permits MOVE but not EDIT_VERTICES or ROTATE - JavaScript error thrown

I'm putting together an ArcGIS (v10.1) JS API (v3.2) application and I've hit a snag in drawing / editing functionality. Users can draw a new geometry or edit an existing one. I'm using the draw and ...
2
votes
1answer
2k views

Determine why OpenLayers.Bounds containsLonLat() returns false

In this code, I'm loading a bunch of random points that are roughly in the contiguous USA. I've created a OpenLayers.Bounds object roughly corresponding to that extent. When I select a point, I want ...
0
votes
1answer
307 views

Vector data(point) is drawn in wrong place on map (OpenLayers)

I need to show a map (world map, used default OpenLayers WMS) and one point on it (with events like onhover, etc). Here is my code: var options = { ...
1
vote
1answer
2k views

Feature Layer with ONDEMAND mode

I can't understand how to display all features from the feature layer. In the code bellow I specified 2 features in the layer and set in feature layer's mode to esri.layers.FeatureLayer.MODE_SNAPSHOT. ...
0
votes
2answers
798 views

Toggle Visibility of Features in FeatureLayer

How to toggle the visibility of features in a feature-layer using check-boxes .I have grid containing check-boxes in a columns representing each feature in Feature-layer and so if I check off the ...
4
votes
3answers
6k views

FeatureLayer creating in javascript ArcGIS API

I got the sample called "Feature Layer with ONDEMAND mode" in the ArcGIS for js resource center. This example just adds layer with rivers to the map. I want to use my own features instead of using ...
8
votes
3answers
1k views

Map Application Requires Refresh to Initialize

I tried this question over on StackOverflow but didn't get any answers. Hoping you all might be able to help. Creating a web mapping application in Javascript/Dojo: When I load the app in a browser ...
0
votes
1answer
7k views

Google Map - display specific markers popup using a list of markers

I have the following code: <script type="text/javascript"> window.onload = function() { // Creating a new map var map = new google.maps.Map(document.getElementById("map"), { ...
5
votes
4answers
5k views

Google maps kml and polygon eventclick error

I have a google map polygon kml file that I am loading on a google map. When I click on the polygon, I draw a line from that polygon to places on the map. To do this I am using the code: //Add KML ...
4
votes
1answer
692 views

USGS Topographic Map Online API

I am creating a website for a non-profit organization and would like to plot points on a map similar to this: http://www.arcgis.com/home/item.html?id=931d892ac7a843d7ba29d085e0433465 I am currently ...
6
votes
2answers
2k views

How can several vector layers have different controls, using Openlayers?

Using openlayers I have two vector layers. One layer is called lineLayer consisting of vector lines, and the other is called pointLayer consisting of points. When I hover on the lines I want to be ...
3
votes
1answer
551 views

How to embed ESRI maps on my website

I've got a website where I'd like to insert maps with some placemarks (restaurants, points of interest, ...). I'm tired of Google Maps and like to use ESRI basemaps. Is it possible to do this? I'd ...
3
votes
1answer
217 views

msWFSGetFeature(): WFS server error. FLTApplyFilterToLayer() failed

I have the following code that generates a map with a couple of layers. var PIDS = ...
9
votes
3answers
1k views

Best ways to embed dynamic maps into PDF files

Working in consulting, I found that sending clients PDF file with my embedded maps is one of the best ways to achieve a wow-effect from them. The latest pdf file formats all support the layers feature ...
0
votes
1answer
405 views

What would be the URL of a JSON file on the local drive?

When i save json file in web apps then using http://localhost:8080/WGSClient/js/object.json this path file gets open.But when i keep it outside web apps like local folder then using same url format ...
2
votes
1answer
2k views

How to use OpenLayers cluster strategies without using a Protocol

Using OpenLayers with Bing maps, I'm trying to load JSON data from a service URL and assign an array of clustering strategies to the resulting layer. There are plenty of examples of using cluster ...
0
votes
1answer
86 views

trying to create array reader for feature fields

I am trying to create a functionality that creates array data for any layer that user selects. Now I am able to get all the data in the feature layer that the user selects but I am having some trouble ...
1
vote
1answer
120 views

Why does an OpenLayers map.getNumLayers() return 0 even though I've added a layer?

When I try the following code, OpenLayers returns a zero result. What have I done wrong, here? var map; function loadMap () { // Based on example code: view-source: // ...
4
votes
1answer
702 views

Authentication in geoserver with openlayers

Is there a way to authenticate in geoserver with a external webpage (made with asp.net and openlayers)? I have restricted the access data only by certain users, and I don't want to authenticate this ...
8
votes
2answers
4k views

How to cluster Google Maps kml overlay

I have several thousand markers stored in a kmz file that I load into a Google Maps (v3 API). I've looked around to find a way to cluster the overlay data, but to no avail. MarkerClusterer looks ...