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

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0
votes
1answer
48 views

Multiple GeoJSON Layers

I have a leaflet map of the US and I would like to toggle between zip codes and county shapes. There seems to be no tutorials on how to achieve this in the documentation or an other forums I'lve look ...
1
vote
2answers
39 views

Disable feature popup when creating new simple marker

I have a leaflet map with some loaded polygon layers. When using the Simple Markers plugin, i would like to create a new marker on top of an already existing polygon feature, but i can only click the ...
7
votes
3answers
3k views

Z-index in OpenLayers 3: layer ordering in OL3

Is there a method to cjange Z-indexes of layers in OpenLayers3 like it was in old version? map.setLayerIndex(markers, 99); //set the marker layer to an arbitrarily high layer index and I need to ...
2
votes
2answers
419 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 ...
0
votes
1answer
36 views

Esri JavaScript API ApplyEdits update not working

When I attempt to applyEdits as an update to my application I receive the following errors: I uploaded my most recent revision on Github at: ...
0
votes
1answer
568 views

How to use cartodb.js with API key for privacy of data

I would like to use cartodb.js in my web page reproduce a visualization that I created at CartoDB. But I want to keep private my visualization and data at CartoDB (and I am going to secure my web ...
1
vote
0answers
102 views

How do I modify the WebAppBuilder "LayerList' widget to use radio buttons instead of checkboxes?

I've downloaded the developer version of the Web app builder and installed in on my machine. I can open up the widget '\LayerList\LayerListView.js', and I have been exploring the source code. I would ...
2
votes
1answer
635 views

How to get the feature location in OpenLayers v3

After I am using the drawing interaction or modify interaction I have a listener that returns the feature that modified or added. Example draw.on('drawend', function (event) { // get the feature ...
2
votes
0answers
45 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, ...
0
votes
0answers
37 views

Importing tif image from PostgreSQL Database to webpage

I am trying to import tif images from PostgreSQL Database to my website. In the website, I need to make a button control which will open the images. I think I have to use Pyhton as a server side ...
0
votes
1answer
37 views

moving user by gps and show interested points

Is it possible in a Web application with google maps, to use a user his mobile gps and when move and is near on an interest point such as hotels, interested point i have stored in a Postgresql ...
0
votes
0answers
96 views

GeoJson and D3.js multipolygon

I have this geometric shape file, so no map of a city. I store the two Shapefiles in a GIS database as a geometric form. Now, I want to visualize the geojson data. I created the GeoJson data ...
0
votes
0answers
35 views

Set destination address using Esri Directions

I am using the sample on the Esri JS API and would like to set the destination of the directions to always be my address; any idea how to do that? The code to do this is: <!DOCTYPE html> ...
0
votes
2answers
176 views

Converting area of a polygon from steradians to square kilometers using D3.js?

How can I find the area of a polygon in square km using D3.js? I'm not even really sure whether to use d3.geo.path.area or d3.geo.area. Here is my code (JSFiddle): var d = { "type":"Feature", ...
0
votes
1answer
136 views

Adding in multiple layers in OpenLayers 3

I am trying to add in the following two layers into my OpenLayers 3 map. The issue i'm having is that whichever one is written in last is the only one that is showing. I imagine there is a way to ...
1
vote
2answers
2k views

Loop over features of a GeoJSON object from CartoDB

I have just little knowledge about HTML and JavaScript. Nevertheless I was playing, copying and pasting around with Leaflet and CartoDB. I want to display the features GeoJson in a table. This is ...
2
votes
0answers
70 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 ...
0
votes
1answer
97 views

Create a polygon from an array of coordinates in arcgis javascript api

Well I am building a GIS web app using ArcGIS Javascript API , I want to create a user interface in which the user provides an array of coordinates and I have to get those coordinates and create a ...
0
votes
1answer
34 views

OpenGeo Suite - Possible to create input form

Is it possible to create a user input form such as a simple HTML form to take user input? The aim of this is to add the user input to the geom data in the DB.
0
votes
1answer
45 views

removeFrom(map) doesn't work

omnivore.wkt.parse("${feature}").removeFrom(map); I select features by this line omnivore.wkt.parse("${feature}").addTo(map); but when I remove from map doesn't work this code works but if I ...
0
votes
0answers
42 views

Adding shapefile from local drive to WebApp using ArcGIS API for JavaScript?

I want to add a shapefile of certain data to my WebPortal (which is currently running on Localhost) how can I do it? I'm using ArcGIS API for JavaScript.
0
votes
1answer
24 views

Features disappear when switching 2D to 3D?

I'm working on OL3-Cesium. Right now my main focus is to add parallel lines to a given line string. That's working perfectly fine in 2D view. But as soon as I switch to 3D view, the parallel lines I ...
1
vote
2answers
144 views

How do I embed the a Leaflet map into my web page, using QGIS2Leaf?

I am generally new to web developement, and web gis for that matter, but I want to embed a leaflet map that I made in QGIS using the QGIS2leaf pluggin, into the html of my webpage, but am having ...
0
votes
1answer
27 views

How do I use filters on multiple layers in Kartograph?

I am trying to create a map of the continental US and Puerto Rico using Kartograph. I am using the shapefiles from Natural Earth, and I obtained the filter keys from the column headers of the DBF ...
0
votes
0answers
44 views

Refresh map after updating chart elements

I need to refresh an openlayers map after updating the size of pie charts in a mapfile displayed on the map (on button click). I cannot refresh the whole page or I lose the data. It works when I ...
2
votes
2answers
12k views

Openlayers How would i get a hover label over my polygon

make a hover/mouseover label for a polygon in Openlayers? I made a map with draw, delete and drag polygon function. Now I need to make a hover mouseover for this. How to get a hover label for ...
0
votes
1answer
65 views

How to protect the loaded json file name and location using html5 and javascript?

The data of markers (not the map) is stored in a json/csv/js file. We want to show all data as markers on the map. But how to protect the raw data file from public access? Following the example on ...
2
votes
1answer
51 views

X and Y after Albers lat and lon transformation

that is probably a very obvious question but it is melting my brain: when transforming lat and lon to [x,y] (for instance using this code https://gist.github.com/RandomEtc/476238) I get the ...
0
votes
0answers
16 views

Which open source lib to choose from gxp attached with open geosuite 4.5 , heron or core geoext?

My requirements are WMS , WFS-T (editing), printing map, styling , able to edit layout to make a consistent template for application. text search , search by geometry, query , multi-layer ...
1
vote
1answer
158 views

Google bathymetry service with OpenLayers Mouse Position

After searching for some days I decided to post this question here, hope someone else can give me some hints about a doubt I have. The thing is that I would like to use the Google Bathymetry Service ...
2
votes
2answers
2k views

Add point to center of polygon graphic in the Esri javascript api

I’m using the ESRI JavaScript API 3.3 to develop an application. I am selecting parcels and adding a graphic for the selected polygon. What I would like to do is add a point marker to the center of ...
2
votes
0answers
133 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 ...
1
vote
1answer
106 views

How to add custom basemaps to BasemapGallery

I would like to add my own custom basemaps to the BasemapGallery. Is there any way I can create my own BasemapGallery with only my maps? I am using the ArcGIS API for javascript. EDIT: for clarity I ...
0
votes
0answers
43 views

“require” is not defined in GeoServer's community scripting extension (Javascript)

I'm attempting to use GeoServer's Community Scripting Extension for JavaScript. I've installed it according to the instructions, and when I try to reproduce the WPS Hook example, I receive the ...
1
vote
1answer
96 views

Load external geojson file into leaflet map

Have studies this thread but not getting desired result. My index.html looks like this: <!DOCTYPE html> <html> <head> <meta charset=utf-8 /> <title>GeoJSON ...
1
vote
1answer
48 views

Select / Drag or by rectangle CMV Application

Anyone able to suggest to this noob if there is a way to change the selection option in my CMV application from individual polygons (one at a time) to an option of selecting multiple polygons at once ...
2
votes
2answers
2k views

Add GeoJSON layer to OpenLayers 3

I have a GeoJSON file called mygeojson.json and I want to add it as a layer in OpenLayers 3 on top of an openstreetmap layer. So far I could display the openstreetmap world including zoom etc. but for ...
0
votes
1answer
43 views

Tips for learning to work with geoserver in Javascript

After succesfully being able to work with the ArcGIS Javascript API in a webpage I want to learn to work with Geoserver. I have downloaded Geoserver and uploaded one shapefile. Now I am trying to call ...
0
votes
1answer
48 views

Can KML layer order be set in the CMV

I just started exploring the CMV about a week ago as an option to replace our Flex Viewer based configurable web mapping applications. So far it seems to be meeting all our needs however I have run ...
0
votes
0answers
138 views

Getting pixel coordinates of an image overlay using leaflet map library on click (right click)

I'm trying to get the pixel coordinates of an image overlay on click (right click/contextmenu) using the leaflet map library. Essentially when a user clicks on the image, I need to find the x,y or ...
5
votes
2answers
142 views

How to use external CartoCSS/mss within JavaScript?

I am using CartoCSS to style features in a run-time CartoDB layer (as opposed to a pre-made visualization) but it gets messy doing this within JavaScript: sublayers: [{ cartocss: '#initvisitedfws ...
2
votes
1answer
961 views

Polyline insertPoint issue using ArcGIS API for JavaScript?

Using ArcGIS API for JavaScript 2.5 I am trying to draw a path on an esri map. with circles like so, but when I call Polyline.insertPoint it doesn't show the new segment: I keep adding points as ...
0
votes
1answer
593 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, ...
4
votes
2answers
1k views

Force an ArcGIS API for JavaScript WMSLayer to use EPSG: 900913 (instead of 102100)

I have a use case where an external WMS server can serve maps in the Web Mercator projection using EPSG code 900913, but won't recognize ESRI's 102100 code. My question is: can I force all WMS ...
0
votes
0answers
177 views

Add cluster marker into google maps fusion table?

I try to add a cluster markers to this code but when I add some var to the code, the maps can't load. Then, when if (is mobile) deleted, it also can't show that maps. Sorry, I'm a newbie, maybe ...
0
votes
1answer
50 views

How to join a WFS layer to a table in OpenLayers

So I have to bring up this old question How to join a WFS layer to a stand-alone table in OpenLayers I recently have to get this working, I have to join a WFS layer data from GeoServer using postgis ...
0
votes
0answers
54 views

Leaflet-image draw legend

I'm using the mapbox leaflet-image plugin to allow users to save images of an app I'm making for a client. It works great with this setup: Callback function on click event... leafletImage(map, ...
0
votes
1answer
11 views

In embedded map - can I temp disable all hoverwindows while any infowindow is open

I have CartoDB map with hover and infowindows for 1000 polygons. When user click we want to open infowindow for processing (update able form) and want: stop hover windows from working until user ...
1
vote
1answer
69 views

Multiple Attribute Tables - CMV

I am trying to add multiple tables using tabs to one of my viewers but can't get it to work. Below is the code that I have added to my viewer.js widget option (it adds a table for 'Site 2' but not ...
0
votes
0answers
37 views

Javascript - Problems getting GeoJSON from Geoserver

I already read other posts regarding this topic. However, I cannot make it run. This is what I have: var geoJsonUrl = ...