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

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3
votes
0answers
43 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 ...
0
votes
1answer
96 views

OpenLayers Drag&Drop a pin to select position?

Is there an OpenLayers example that allows the user to set a position with drag&drop. I would like to have a pin and set the position after the user drags & drops the pin to a new position.
1
vote
0answers
20 views

Waiting on AJAX result in main JS function

So .... my main init()Javascript function has these 3 lines: sarea = GetArea(Uname,UIDfield,Table, document.getElementById("Source").value); darea = GetArea(Uname,UIDfield,Table, ...
2
votes
1answer
228 views

Openlayers map WMS stretched by latitude

I am working on a small javascript application for displaying map with WMS layers from 2 servers. The problem is, that image is stretched by latitude, it is wider, as it should be. This is is how it ...
0
votes
1answer
39 views

Finding the closest facility in a feature layer from a webmap

I have created a webmap on which a feature layer is displayed and I'm trying to find the closest facility when the user clicks on the map. Based on Find closest facilities in the Javascript API ...
2
votes
1answer
313 views

How to get data from TileMill tileLayer properties in Mapbox for click/hover

I've successfully used Leaflet to load a geoJSON polygon-shapefile with data, and added click and hover interactivity to the layer. For a large dataset, I switched to mapbox.js 1.6.1, used TileMill to ...
2
votes
1answer
16 views

Control to select data source on Leaflet map

I am building a map using leaflet. My data source looks something like this: var districts = {"type": "FeatureCollection", "features": [ {"type":"Feature", "geometry": ...
0
votes
2answers
21 views

OL3 check if point is inside a polygon

When I am adding a point to my web map I want to give it a latter that represent the area where the point is, so I need to know in what area is the point. In OpenLayers 2 I did it like this: ...
0
votes
1answer
439 views

ArcGIS map service layer not loading properly

I'm at a total loss. My initial problem was an issue with the layer not loading at all when the page was set to the full extent, despite having changed the Min/Max Scale settings generously when ...
0
votes
0answers
22 views

How to add WMS Layer from Mapserver( localhost) on Cesium Globe?

I am trying to add WMS layer from mapserver i.e. from localhost on Cesium Globe with the following HTML code. But I am not able to load or connect Cesium with the Mapserver and nothing is displayed on ...
3
votes
2answers
100 views

Setdrawingmode(null) giving Uncaught RangeError: Maximum call stack size exceeded main.js.27

I have my google map codes running for time where I can draw polygon and polyline without issue. Below are my snippet of codes on how I do my drawing. Unfortunately I got this error Uncaught ...
0
votes
1answer
18 views

Adding drop-down menu on leaflet map instead of L.control

I have created a choropleth map including several layers from the same geojson layer which is turkeyData in my case.I actually did it and it works fine. But I like to change the standart leaflet ...
0
votes
0answers
8 views

Disconnected Satellite map tiles usable with OpenLayers or other javascript api

I'm looking for satellite map, usable with OpenLayer (or with an other js api), with a good scale (at least 100m, MapQuest stops at 1000m) and avaible for a disconnected mode (avaible for download). ...
0
votes
1answer
16 views

Automatically select the default feature in TemplatePicker ARCGIS Javascript

I am using this example to implement the editing on my map. Editing Without Widget ARCGIS Javascript The code employs a templatepicker which uses the layers on the map to show the features which can ...
0
votes
1answer
36 views

Configurable map viewer (CMV) - Find the area of drawn polygon

I am trying to get the area of a polygon and divide that by 16.94 ft^2. I have plugged in a Template I found. I am missing something. I am trying to get the template and my original code to talk. ...
1
vote
1answer
34 views

CartoDB SQL and returning values

Right I've got this JS function function AreaCompare(sql, UIDfield, Geogname, Table, sourceName, sourceID, destName, destID){ CompareObj = {}; CompareObj.sName = sourceName; ...
1
vote
1answer
80 views

Using Odyssey.js with Cartodb.js

I'm looking to use Odyssey to create an interactive introduction to various data layers on an interactive web map I've created using CartoDB.js. I'd like to have different data layers turned on / off ...
2
votes
2answers
68 views

Create a layer selector when making a map at runtime for CartoDB

Using the same theory to create a search box at runtime, (such as here), I wrote this code: var l = cdb.vis.Overlay.create('layer_selector', map.viz, {}) l.show(); $('#map').append(l.render().el); ...
6
votes
1answer
421 views

Why do ArcGIS Desktop 10 HTML popups give JavaScript/HTML Error?

Using ArcMap 10 Desktop HTML Popups. The issue I am having is that the html < select > elements aren't working - you can select it and use the arrow keys to navigate through(up/down) the list but ...
0
votes
1answer
45 views

insert update delete wfs layer to gesoerver on openlayers3

i am using geoserver 2.5.2 and openlayers3 i can show geojson wfs data from geoserver with geojson and edit with interactions on map (function () { showData= function () { var format = ...
1
vote
1answer
3k views

Openlayers get coordinates of a circle vector after draw

I have made a openlayers map. I have made two features on the map. Navigate DRAW POLYGON I have made 40 sides to my polygon which turns out to be a circle. After I have drawn my circle I want to ...
0
votes
0answers
22 views

Get latlong at a distance on a path

I have 2 decimal point in lat/lon. I want to divide the line drawn by lat/lon into parts each at a specified distance, lets say 'x' -- all except the last segment will be of length x -- and I need the ...
1
vote
2answers
174 views

Getting value coded of domain from map layer with arcgis javascript api

I'm trying to read domain values on a map, how to achieve this objective in arcgis javascript api? any help?
0
votes
1answer
171 views

OpenLayers 3 zooming to layer when source is ImageWMS

When I create a layer using a vector source I can force the map to zoom to the layer using //stuff including setting up defaultStyle var vectorSource = new ol.source.GeoJSON({ url: geoJsonUrl, ...
2
votes
4answers
2k views

Formula to Check Latitude & Longitude is within Area without Google Maps Api

I got this Example Map SampleMap: http://techinfo.co.id/test/map.php I make Boundary Polygon shape , -6.875165174925262, 107.56293296813965 -6.882663904407988, 107.66730308532715 ...
1
vote
1answer
7k views

Uncaught SyntaxError: Unexpected token : when using ajax

I try to call json data from geoserver, but when i try to run it in chrome, it return this following error "Uncaught SyntaxError: Unexpected token :" This is my code, function ...
0
votes
1answer
33 views

Problem with Cesiumjs sand castle live editor

I have saved a html file from Cesium SandCastle live editor, but I am not able to run that file on a web browser afterwards, even after loading all the JavaScript files correctly. How to make it run ...
1
vote
2answers
257 views

Adding multiple layers with timed delay in Mapbox/Leaflet

So I've got a Mapbox map showing data split into several layers. I'd like the user to be able to click a play button to call the function "gogogo", and then the layers get added one at a time every 1 ...
2
votes
2answers
83 views

Make InfoTemplate moveable but still highlight attributes

I’m using the esri/InfoTemplate in the Javascript API to identify features. However, it gets anchored to the mouse click and cannot be moved around. Based on this answer I used dojo/dnd/Moveable to ...
0
votes
2answers
39 views

Javascript + ESRI + Dropdown menu with layers

Dear people of stackoverflow, I have a script that generates a basemap with a layer that I have put on top of it. I am trying to create a dropdown menu in which the user of my HTML5 page can select ...
1
vote
1answer
36 views

The ordering of layers with CartoDB/Leaflet

Just want to get a bit of clarity about this query from before: Layer order in CartoDB I have a map with a Basemap and I want to draw points between features based on layer featureclicks, The good ...
0
votes
1answer
44 views

Setting properties of geoJSON in OpenLayers

I have a map with layers that have similar attributes. I want to add a function that when you select a feature in a layer, it searches for a feature with similar properties in another feature (in this ...
0
votes
1answer
28 views

esri JavaScript Spatial Analysis Services: Select appropriate helper services url from Portal for requested operation

About 6 months ago I built a prototype JavaScript app which uses the spatial analysis service; FindNearest. Find Nearest. I've posted this on GeoNet but haven't had much joy there. The app ran fine ...
0
votes
0answers
20 views

Open Layers Label styling (font size)

I have a polygon dataset that I am symbolizing in OpenLayers using a context to determine the correct color, and also a label for each polygon that I want to alter depending on the zoom level. But ...
1
vote
1answer
15 views

set definition expression based on slider values

Using the Esri JavaScript API I want to control the set.DefinitionExpression values based on a user controlled range slider. The data is loaded from REST as ondemand using: var POP_Total = new ...
0
votes
3answers
176 views

Measure Widget Issue - ArcGIS Javascript API 3.11

I am having an issue with the Measure Widget in my application after updating to 3.11. The widget does not appear after the application loads. I have checked my code and do not see an issue, also ...
1
vote
1answer
48 views

Showing link for every city at different zoom levels using Leaflet?

I have a Leaflet map that I am using to render a map of the U.S. The map will have specific zoom levels. For example, when the map first loads it will show major U.S. cities. Then if you zoom in it ...
0
votes
1answer
41 views

Configurable Map Viewer (CMV) - average the values of the points

I have been able to select points and find the sum of the points. What I really need is to average the points. Here is my (acquired from someone else) code for finding the sum. define([ ...
0
votes
0answers
10 views

Custom tile area in OpenLayers for every zoom level with a custom tile resolution

For an extend min_x, min_y, max_x, max_y in EPSG:3857 somewhere on the map (eg. france) I have an image cut into n x m tiles and requestable under an URL: http://localhost/map/{x}/{y}.jpeg How do I ...
0
votes
0answers
31 views

API for Java and JavaScript app integration

Are there any APIs to make calls or integrate JavaScript functions to a Java written application? I have come across Rhino's liveconnect.js, but this is uncharted territory for me, and would like a ...
2
votes
2answers
46 views

Javascript API: How can I change renderer on the fly with feature layer hosted on ArcGIS Online?

I am new to Javascript and somewhat new to GIS (especially web applications of GIS). I'm trying to understand how I can have a drop down menu or html buttons to change which data is rendered in my ...
2
votes
2answers
309 views

Authentication in Geoserver 2.4.x from a web application

I am trying to build a web application using html and javascript from which I want to login to geoserver hosted at: https://weaveprod.ucdp.utah.edu/geoserver/web/ I have written the following code for ...
2
votes
1answer
35 views

SQL query as part of featureClick in CartoDB.js

I am a complete novice at both Javascript and SQL so am learning as I'm going with this! I have made a webpage that shows a map with a layer of points on the left hand side of the page. What I want ...
0
votes
0answers
11 views

Any way to make leaflet.draw polyline finite (i.e. max) distance?

Does anyone have an idea of how I could force a maximum distance when creating a polyline with leaflet.draw? In other words, I would like for the user to only be able to draw a line UP TO 1000 miles. ...
0
votes
0answers
23 views

Adding and removing OpenLayers 3 layers based on a key

I have a map with potentially tens of thousands of areas on it so I draw the map using an ImageWMS layer via GeoServer. I want the user to be able to click on the map and then highlight the area if it ...
2
votes
3answers
1k views

ESRI proxy page not working properly + CORS + cross domain scripting

I have set up a proxy page. I am using jsp version of proxy page. I have set up a server URL which will point to my Java. When I load the my page which the proxy URL has set in its html it will work ...
0
votes
1answer
112 views

get and change style property openlayers

i need to change the property of some style after its created, and i need to change it with knowing only the string of the property name. i am getting string like "fillColor" and value like "blue", ...
0
votes
0answers
31 views

ArcGIS API Javascript Server creating a dropdown menu

I am trying to rebuild this ESRI example with my own feature layers: https://developers.arcgis.com/javascript/jssamples/dataadapterfeaturelayer.html Since I just want a dropdown menu existing out of ...
1
vote
1answer
31 views

Projection Transform in OpenLayers3

I am trying to transform a GeoJSON object of a certain transformation (EPSG:28992) into my current map coordinate system (EPSG:4326). I have been trying to do a couple of things but none seem to work. ...
2
votes
1answer
354 views

Leaflet setView with non lat/long CRS

Is it possible to use setView when using an alternative CRS? var map = L.map('map',{crs: L.CRS.EPSG26915}).setView([4970081,477018], 13); // Returns: Uncaught TypeError: Cannot call method ...