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

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2answers
1k views

OpenLayers vector does not draw (or re-draw) on zoom level change or layerswitcher off/on

Here is the full code (i'll highlight the important parts after): jQuery(document).ready(function($) { // ...
1
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0answers
530 views

Help me convert this US Lambert Conformal Conic Google Maps Projection to Australia

Following on from this question: Identify what projection this Australian map uses? <- this is the sort of map i want to load in I need help changing the bits necessary in this example of Lambert ...
2
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2answers
1k views

Can I use leaflet to access a WMS service published as an OpenLayers javascript API?

I would like to add this layer to a site I'm working on that uses leaflet: http://116.240.195.134/vicmapapi/UserGuide.jsp The API itself is a javascript file based on OpenLayers: ...
2
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1answer
218 views

OpenLayers: Can I drag a feature between two maps?

Is it possible to drag the features between two different maps? Now, I create feature on event mouseenter but I would like to insert the feature and at the same time start to drag this feature.
1
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1answer
421 views

Issue selecting feature for IdentifyTask (Javascript API)

I am having an issue selecting features in my web map for an IdentifyTask operation. I have a dynamic map service that contains a few sublayers that I would like to be able to click and have a popup ...
1
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0answers
43 views

Are there any js libraries for reading OSH data?

I want to do time based mapping on openstreetmap data in the Kathmandu, Nepal area. I think i have two options Using OpenStreetMap Change files (OSC) Using OpenStreetmap History files (OSH) I have ...
5
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1answer
878 views

Using Custom Map Projection On Leaflet

I have an application displaying a EPSG:3414 map running on Openlayers - jsfiddle working sample that works. I am trying to implement the same on Leaflet - jsfiddle non-working, it is not working as ...
5
votes
2answers
1k views

LeafletJS: Load Tile Layer based on bounding box

I have a LeafletJS map application with lots of layers. I have a few layers that only have imagery for certain regions across the world. Because everything goes on a world base map. All tile caches ...
5
votes
2answers
1k views

Cluster Strategy different Labeling at Different Level

what I did? I am trying to plot some points using cluster strategy of openlayer using animatedCluster plugin. I have gson data as given: { "type": "FeatureCollection", "features": [ { ...
0
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1answer
106 views

Fusion table styling

I am importing data from fusion table data as a layer. but the colour i used in fusion tables is not reflected in my map. it by default remains red small icon. Please let me know if I am doing ...
3
votes
3answers
146 views

Is it necessary to use a third party service for serving this case?

I have been assigned a task to help build a mobile app, which only shows terrain view of map with a fixed (min/max) zoom level based on mobile phone position and moveable markers which are provided ...
3
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2answers
378 views

Are there any good libraries for visually creating simple Google Maps?

I'm working on a simple webapp that lets the journalists I work with easily construct styled Google maps. In short, I need an interface that lets users place markers, set zoomlevel and choose a ...
0
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1answer
127 views

Mouse click event used gis application with much data

I will create an application that using my water pipes, electric cables, gas pipes service in a city. All of streets and roads including water pipes. My service is publishing pipes. My service like ...
0
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2answers
2k views

Date Time format in ArcGIS 10.1

I have a Date column in my feature class and I want the date to appear in "dd MMM yyyy" format as a label to a polygon. I am using Arc Map 10.1. I tried taking Jscript. var Dt = new Date(); Dt = ...
10
votes
1answer
17k views

How to Add/Remove Legend with Leaflet Layers Control?

I have two overlays http://02d0c8c.netsolhost.com/dev/lcb_census_layers3.html that can be turned on and off with a Layer Control. I’d like the legend for each layer to turn on/off along with the ...
1
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3answers
412 views

Popups over markers not working in OpenLayers

I have a map developed based on google map API and OpenLayers. It has some markers on it. I'm trying to create a popup for each marker. The markers are in a markers layers. Besides the markers layer, ...
2
votes
0answers
454 views

View attachments in popup when using the editor widget

I am using ArcGIS javascript API to construct an editor app for a layer. I am using the default out of the box editor widget to edit and display data for an app. The layers I am editing contain ...
1
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0answers
505 views

maximum limit for plotting lat-long on google maps

I want to highlight a route on google maps along with our network sites. I have successfully done it but when I load data in large proportion then my plugin becomes unresponsive. Can someone suggest ...
15
votes
4answers
21k views

How to load external geojson file into leaflet map

I would like to load a geoJSON (polygon) file into my leaflet map. I have seen examples where geoJSON is embedded into the javascript code but I can't find any examples showing how it is done with an ...
0
votes
1answer
644 views

Open Layers Bounds with Lat / Long

I am using a custom map with the TMS in OpenLayers. I know my high/low latitude and longitude points. In other words I know the exact bounds of my map image in Lat/Long. Is there a way to use ...
2
votes
2answers
928 views

How do I sort a geoJSON feature collection alphabetically by a property value?

I am trying to sort the objects in a geoJSON FeatureCollection alphabetically by the values of one of their properties. How do I get to the nested object properties with JavaScript? I have tried using ...
2
votes
1answer
847 views

ESRI geoprocessing service with Javascript API 3.5

I am having issues getting a geoprocessing service to run. The service is a simple Python script that converts a table to CSV file. It runs fine in ArcMap. I can publish the service with the input ...
7
votes
2answers
2k views

Progress bar for Leaflet map

Is there any way to show progress bar while waiting that all layers are rendered on Leaflet map? In this specific case, while geojson layers are rendered. Thanks.
1
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1answer
625 views

How To Display ArcGIS Javascript API Graphic on Postback

This code uses ArcGIS JS API 3.5 to have a user designate a location on a map. It then blasts those coordinates into a SQL Server 2008 database and returns (using the confirm location button) some ...
6
votes
3answers
5k views

How can I use WFS from Geoserver with OpenLayers 3?

I have tried with different setups and formats, but no success. With firebug, I can see that the json data is loaded, but nothing shows up on the map. Have anyone experience with geoserver and wfs ...
1
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1answer
3k views

Bing Maps / JavaScript - trying to open InfoBox with the PushPin click event

I am experimenting with the sample code on the Bing SDK site but am unable to get the click event to work with the pushpins I am adding in a JS .each loop that pulls in longitude, latitude coordinates ...
3
votes
1answer
15k views

Zoom Change Event Listener with google maps api

I'm trying to create an event listener that turns off a google fusion layer once the map is zoomed in to a certain level. I'm pretty new to javascript and its google maps api, so any help is ...
0
votes
0answers
359 views

ESRI javascipt agsjs TOC works in version 3.0 but not 3.5 of the API

Is there a way to get the TOC.js to work in version 3.5?
0
votes
3answers
6k views

How to plot coordinates from *.csv file on Google Maps?

I want to highlight a mobile trace on Google Maps and GIS data from my network must also be visible. I am able to plot hard coded coordinates on Google Maps but not from a *.csv file. Note: *.csv ...
2
votes
1answer
335 views

ArcGIS 401 error during initialization of javascript map

I have a dumbed-down application to only reference a geometry service, and a feature service. When the map is being initialized, it sends out a GET request of: ...
2
votes
2answers
99 views

Why is OpenLayers only displaying the first features in my KML?

I have an OpenLayers map (that you can find here, use the blue search area) that reads in a KML string that is written from Perl using data from oracle. It reads the KML like this: var vector_Layer = ...
3
votes
0answers
58 views

simple raster format to use in Web applications?

I'm building a Web application in which users create and edit very coarse raster data. They're assigning values to cells in a georeferenced grid. Right now I'm storing the values in a multidimensional ...
2
votes
4answers
1k views

Get coordinates from address

I am writing a application which allow users to save a address into database (db) and in the next step it shows all addresses on a map. But in the saving step I need automatically calculate a GPS ...
4
votes
1answer
1k views

display a choropleth map using D3 and Leaflet

I am trying to get a leaflet map to display a choropleth map using d3. I have written this code using samples I have found however the map just displays as the black fill, not the color classes I ...
2
votes
2answers
45 views

How do I know what parameters I can call for WMS layers?

I'm trying to learn OpenLayers but the documentation is hard to understand. For WMS layers, ex: var wms = new OpenLayers.Layer.WMS( "OpenLayers WMS", ...
-2
votes
3answers
597 views

Disable a button until selection is made [closed]

I have this section in my website: There is a drop down list of environments and an area for a user to input a Zip Code. What I am trying to achieve is making the button disabled until a selection ...
1
vote
1answer
237 views

OpenLayers serving a MapServer layer: data won't display correctly without using WMS

I am trying to serve my Mapfile data as a MapServer layer in OL, rather than a WMS layer. When I display it using WMS, everything works fine. The part of the mapfile I have struggled with was ...
0
votes
2answers
336 views

Programatically adding popups into OpenLayers map

I'm developing a web service and want to inset multiple popups dynamically to a web page according to the request. What I did was this <script> //injected programmatically var popups=[]; ...
1
vote
1answer
125 views

ArcGIS JS Modular Feature Layers? Possible?

My ultimate goal is a map which can toggle the visibility of layers on an ArcGIS map. However the data I need to use is not available as a feature service, I have to build it programatically from ...
1
vote
1answer
387 views

How to get bounding box coords?

How to get coords for NW and SE if we have about 4-5 pixels on the image with assigned latit/longit? I'm working on javascript app which would overlay that image on Google Map then. Thanks.
0
votes
1answer
425 views

OpenLayers: How to add permalink long/lat anchor to links outside of map on page

I would like to extend the funtionality of OpenLayers that appends, on-the-fly as the user zooms and pans the map, the longitude/latitude parameters as a anchor to the URL in the browser's address ...
0
votes
1answer
252 views

Undomanager did not remove graphics when undo()

My attempted on using the UndoManager has been unsuccessful for a couple days and I'm stuck. I did not setup a proxy. I create a FeatureLayer object in memory with var drawingPointLayer = new ...
2
votes
1answer
527 views

Application for online overlay images on Google Maps

I want to develop javascript app which will take any image user uploads, user will click on 3-4 points on the image (3-4 cities, for example NY, Chicago, LA and Miami) and image will be overlayed on ...
2
votes
3answers
404 views

javascript function to search all OpenLayers vector features covering a pixel

I have an OpenLayers map that draws features in a vector layer. The features are selectable and have a popup on select. Unfortunately in a lot of cases the features overlap so it can be impossible to ...
2
votes
0answers
225 views

Show geoJSON properties in jQuery Mobile Panel

First off I'm a novice at JS so please bear with me if this is a simple task to complete. I'm currently using the stock LeafletJS popup bubble to display the properties from my geoJSON. However, I ...
1
vote
1answer
2k views

Building SQL statement in javascript and casting variables as strings

I'm working with Postgres 8.3/PostGIS which is storing some polygons. I'm writing a javascript function which will take in a parameter of a watershed id from another function. The javascript will ...
3
votes
1answer
2k views

How to highlight on mouseover without wiping out select control

I am trying to highlight features of a vector layer as the mouse moves over them. I can make this work. I'm also trying to make the features selectable and have a popup box when they're clicked. this ...
1
vote
1answer
117 views

openlayers:transform from ITM to 900913 is not accurate

i did a custom projection ITM (Israel TM) and i then am doing transform to all the feature before im adding them to the map, from ITM to 900913 proj because i want to show the feature on the map. this ...
1
vote
3answers
513 views

Is it possible to create a tooltip with a map service?

I am trying to modify the ESRI Parks Finder application to include a tooltip that shows the name of a park when you mouse hover over the icon. It is a map service. Most of the documentation I have ...
2
votes
0answers
203 views

get all the possible parameters of sql view

I have a Geoserver layer coming from a postGIS database. Among other attributes, I have one that is related to the date data we've collected, called departuretime. We use this attribute to display a ...