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

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4
votes
0answers
416 views

Hexagon binning using Google Maps

I have a bunch of geolocated points that I am looking to cluster on a google map using hexagons. These clusters will be stored in a db for quick retrieval and will be reduced to a single point and ...
3
votes
0answers
59 views

How to get the best GPS position Geolocation API

I want to get the most accurate position of my mobile phone with android. I'm comparing accuracy value in 2 seconds interval and if value is less than last value I'm trying to keep the position in ...
3
votes
0answers
37 views

Attachment editor esri duplicate files

I am using arcgis API's attachment editor var attachmentEditor = new AttachmentEditor({}, dom.byId("content")); attachmentEditor.startup(); featureLayer.on("click", function(evt) { ...
3
votes
0answers
80 views

Trilateration with error account or lack of precision

I am developing a node.js/javascript application where I would have dozens of beacons in a row (positions known), which gives me their distances to specific object (3 or 4 distances per object). The ...
3
votes
0answers
161 views

Has API been written for SpatiaLite for Cordova?

I am creating an app in which I will be creating an AutoCAD model for a 3 floor building at my college. I'll be importing this model as a spatial object into my javascript app - then wrap it with ...
3
votes
0answers
133 views

What is the openlayer.js alternative of unloadinvisibletiles of leaflet.js

I am using open layers with a tile server. I want to load maps while panning and destroy the loaded region when out of screen (Alternative to unloadinvisibletiles of leaflet.js) How am i suppose to ...
3
votes
0answers
2k views

Disable doubleclick zooming in Openlayers 3

I've searched for it on the entire web and finally I found on artamstrong.com how to disable a single feature like "mouseWheelZoom". Here is how double click zooming in Openlayers 3 can be disabled: ...
3
votes
0answers
218 views

Increase maximum zoom level for a WebTiledLayer in ArcGIS

I am using the WebTiledLayer from the Javascript ArcGIS API to render a custom WMTS source. The WMTS I am using has zoom levels going from 18 to 21, however I cannot zoom in further than what appears ...
3
votes
0answers
629 views

Leaflet Event Craziness: jQuery click events don't propagate to L.DomEvents

I noticed that calling .click() on jQuery selected DOM elements in Leaflet ( such as anchor icons ) will not do anything -- the click event isn't propagated to the events created with L.DomEvents. For ...
3
votes
0answers
623 views

How to convert WKT to SVG

I have some Well-known text (WKT) for representing geometry object such as Point, MultiPoint, LineString, Polygon, MultiPolygon etc. I have a multipolygon with in total 40000 Points. I have found ...
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 ...
3
votes
0answers
194 views

OpenLayers and external CSS

I am using geoExt and OpenLayers to plot some map. Everything worked well until I had to add some styling. To display it on the webpage, I need to use the CSS of my university and once I do that, I ...
3
votes
0answers
749 views

Are there any examples of WCS getcoverage requests done using ajax?

I am looking through openlayers to try to figure out a consistent format for generating views of coverages that can satisfy any wcs server, but mainly I'd like to get geoserver coverages. While I've ...
3
votes
0answers
342 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: ...
3
votes
0answers
1k 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
0answers
13 views

3D Visualization in 3D

We have published a geoprocessing tool that gives Raster dataset as output. we are using arcgis javascript api 4.0 version to visualize it on map. But when we use gp.getResultImageLayer , the event ...
2
votes
0answers
19 views

Line Layer seems to be floating and shifted after adding terrain effect in Cesium

I had made add a line layer using cesium. In which i had added a terrain effect using the standard cesium terrain provider as below var dataSource1 = new Cesium.GeoJsonDataSource(); var roads = ...
2
votes
0answers
40 views

How to display join query results on a sublayer in CartoDB.js application?

I'm working with my first CartoDB.js application. I created a visualization on the app using cartodb.createVis('map', visjson_url, opts); The app has two layers, base map and data layer. the data ...
2
votes
0answers
114 views

Caching Google Map markers/coordinates

I have thousands of markers - I need to cache them and use show-hide tactics to only show like 100 markers at once but I have trouble with caching. Adding all single markers/points to an array and ...
2
votes
0answers
76 views

Single button click to bind three javascript functions

I have created cascading dropdownlist for district taluk and villages when i click search button it must zoomed to all the three layers.but i assigned the filter value for village so that it will zoom ...
2
votes
0answers
53 views

Removing individual markers from map

I have a map with several moving markers on it and have been trying to remove each individual one when their respective animation ends. I am using Leaflet and Leaflet's plugin Leaflet.MovingMarker. I ...
2
votes
0answers
105 views

Populate list from arcgis server service in JQUERY javascript aplication instead of DOJO?

I would like to populate a list on a select combobox using jquery with data from an arcserver service.I'm wondering if this is possible and if so how i would implement it. I'm using the esri ...
2
votes
0answers
153 views

Has anyone implemented the leaflet.shapefile plugin?

I'm trying to implement the leaflet.shapefile plugin to enable a user to upload a zipped shapefile and overlay it on my webmapping site as can be done in the demo version of the site. ...
2
votes
0answers
129 views

ArcGIS Web AppBuilder View Query Results in AttributeTable

I'm building a couple of custom widgets for use on a Web AppBuilder app that do some queries against feature layers. I get back a feature set, which I can convert to a local feature layer. What I'd ...
2
votes
0answers
439 views

OpenLayers 3 xyz layer problem

I'm going to host a customized xyz tiled layer so I tested on my local machine to add that layer to OpenLayers Map control. I've already rendered some tiles using generate_tiles.py and Mapnik. I've ...
2
votes
0answers
638 views

open-source code for the map matching algorithm

For map matching of the GPS data to the network data, there is a algorithm from Schussler, N. & Axhausen, K. (2009a). Is this algorithm released under open-source license ? Where can I find this ...
2
votes
0answers
128 views

Move Zoom In & Out Button in ArcGIS JavaScript Web AppBuilder (Developer Edition Download)

After creating a web app in ArcGIS Online, I downloaded the app using the Web AppBuilder for ArcGIS (Developer Edition). Several folders, .json, .html, .js, and .css files are contained within the ...
2
votes
0answers
247 views

How to generate exportable report from web map (ArcGIS JavaScript API)

I would like to build a web map using ArcGIS JavaScript API containing 1 layer of polygons & 1+ layers of points (or lines) contained within said polygons. I want this to be enabled with some sort ...
2
votes
0answers
116 views

How to adapt layerswitcher to include listboxs

For my project I needed something that allowed the user to change the application´s layers and the best solution I found was this one layer switcher since openlayers 3 does not support a layerswitcher ...
2
votes
0answers
105 views

split polyline at specific distance

I am working on a project that uses sql server for geometry datatype and arcgis server and asp.net website and entity framework for data access and arcgis javascript api for map viewer. I want to ...
2
votes
0answers
136 views

Multiple Leaflet maps on website in different divs

I'm pretty new to leaflet.js and I'm trying to figure out how to assign the same map with the same set of options and layers to a different HTML container instead of having to remove and add a new one ...
2
votes
0answers
361 views

OpenLayers: Switch layer off when switching another layer on

As the title says, I want to turn layers off when turning another layer on. I wrote a function that works. However, I have to click the layer twice in the LayerSwitcher to turn the layer on that I ...
2
votes
0answers
110 views

How to simulate events from Openlayers 2?

I am working on a GIS API that uses OpenLayers. I am testing it using QUnit. The problem is I need to simulate clicks and trigger some events to be able to test the whole code. For example, I have a ...
2
votes
0answers
317 views

Leaflet - Enable/Remove popup on mousedown/mouseup?

I'd like to do as the title suggests and can get the popup to appear on mousedown with the following code, but mouseup doesn't close the popup: // Quick look at info on mouse hold ...
2
votes
0answers
567 views

CORS Printing Issue with ArcGIS Javascript

I'm developing an application using the ArcGIS Javascript API and everything has been working fine until I've tried to incorporate the print widget using printtask. When only the base layers are ...
2
votes
0answers
55 views

GeospatialPDF javascript access

Using javascript in GeospatialPDF, is it possible to zoom in to an extent, say when the document is opened the first time ? To what extent can I use javascript to access the geospatial data? pan, ...
2
votes
0answers
679 views

It is possible put highcharts chart in openlayers popup?

As title. I build a openlayers map on my website. and there are many feature vector on the map. now I want to put a highcharts charts in popup. to show the temperature in every city something Like ...
2
votes
0answers
715 views

How to get Google Street View panoramas on the same street as the requested address?

The Google Maps API geocodes an address to a point. I can use that point to find the nearest panorama (street view) image. I can then determine the heading based on the two points and show the ...
2
votes
0answers
610 views

Openlayers and Google Maps Api aren't work on Android Platform

I have application that uses OpenLayers, Google Maps Api and Geoserver My application is running at Web browser and when I try to run at Android tablet (using Phonegap), It runs but openlayers ...
2
votes
0answers
505 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 ...
2
votes
0answers
231 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 ...
2
votes
0answers
228 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 ...
2
votes
0answers
1k views

Problem with multipolygon in Leaflet

I'm using Leaflet L.Polygon, but for some reason there's only blank site. Here's my code: var map = L.map('map').setView([37.8, -96], 4); var cloudmade = ...
2
votes
0answers
516 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 ...
2
votes
0answers
68 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 }, ...
2
votes
0answers
464 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 ...
2
votes
0answers
99 views

Running a web application within ArcMap

I'm interested in creating a component / plugin for ArcMap that works something like ArcGIS online. Ideally a small web app would boot up within a window in ArcMap which would be able to perform ...
2
votes
0answers
503 views

GeoPDF Library for .NET or JavaScript

Anyone know of any open source .NET or Javascript libraries for creating GeoPDFs? I know of QuickPDFLibrary, but i'm preferably looking for something open source. I want to programmatically generate ...
1
vote
0answers
10 views

AttributeTable sending an alert that data was not found when clicking on table row

I have an AttributeTable that I have opening when I start a widget. When I click on a table row in this instance, I am able to get the information back correctly and not see this message. I did this ...
1
vote
0answers
12 views

Leaflet printing does not show pins and map is shifted

I don't exactly why but whenever I try to print my leaflet map with layers, it shows the map a little shifted to the left as well as the pins are not quite ok. I tried using easyPrint() and ...