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)

3
votes
2answers
303 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
votes
1answer
119 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
votes
2answers
1k 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 = ...
8
votes
1answer
12k 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
vote
3answers
297 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, ...
1
vote
0answers
344 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
vote
0answers
415 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 ...
7
votes
4answers
12k 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
513 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
654 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
635 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 ...
6
votes
2answers
1k 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
vote
1answer
546 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
4answers
4k 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
vote
1answer
2k 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 ...
2
votes
1answer
10k 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
318 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
4k 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
251 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
85 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
55 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
846 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 ...
3
votes
1answer
1k views

display a choropleth map using D3 and Leaftlet

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
44 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
298 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
209 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
249 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
111 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
333 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
364 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
198 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
376 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 ...
0
votes
3answers
328 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
202 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
109 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
350 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
159 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 ...
0
votes
1answer
134 views

Openlayers: transfer from custom projection to map projection

I am building webApp with openlayers that contain a map that allowed insert edit and remove points, my map is now using “EPSG:4326" projection. I have shp files and xlsx files that contain polygons ...
1
vote
1answer
813 views

How can i turn off the minus to zoom control in OpenLayers while using OpenLayers.Control.KeyboardDefaults?

I have a map using OpenLayers.Control.KeyboardDefaults but I also have a form next to the map that acepts coordinates. As is stands pressing '-' for a negative coordinate does not type but zooms the ...
1
vote
1answer
103 views

Adding KML to OpenLayers as a textstring

I am trying to display a kml as a vector Layer. I have it stored as a Perl scalar variable but have also tried setting it as a javascript variable. I've tried to separate bits of code that I got from ...
1
vote
2answers
4k views

How to zoom to specific Openlayers point feature on map?

I'm creating website for divers in my country and beside all standard contents and informations it also offers a map which shows some diving clubs, locations and similair. I also have table with ...
4
votes
1answer
775 views

Implementing non-default keyboard shortcuts in Openlayers

Following on from this thread, I am trying to implement @Aragon's suggestion and add some keyboard shortcuts to OpenLayers via a handleKeyEvent method in OpenLayers.Handler.Keyboard. This ought to be ...
0
votes
1answer
1k views

OpenLayers create marker (feature with icon) from WKT

I have a point object WKT. Like this: POINT (25.04568 48.221548). Also I have an icon in my project folder. My goal is to show on a map an icon that represents a feature. Can it be just a normal ...
4
votes
3answers
600 views

More zoom in base layer in openlayer.

I have some GIS project to do, in this project I need to place something like 20,000 trees on a map. So I did a web app with .net that includes map that based on OpenLayers with bing base map. My ...
-1
votes
1answer
1k views

How do I parse complex json? [closed]

My json response: {"type":"FeatureCollection", ...
1
vote
1answer
448 views

ESRI World Light Gray Base Map JavaScript - Prevent zoom out no more than the full extent

It is my first attempt to use JavaScript and the ESRI products. I am using the World Light Gray Base map for my first web GIS application. I have a question about the map full extent method. I would ...
1
vote
1answer
369 views

WFS request with Openlayers; blank request

I'm having trouble to add a WFS layer over an OSM map. At first I thought that my data had a problem, and I thus decided to adapt one of the example on the Openlayers website. I have no error ...
1
vote
1answer
324 views

Get latest tiles from TileMill's tile server in Leaflet

My leaflet app gets the tiles from TileMill's tile server in the standard way: L.tileLayer('http://<myip>/tile/SteveCountryVic/{z}/{x}/{y}.png', { ... }); These tiles are often old, not ...