"Web mapping is the process of designing, implementing, generating and delivering maps on the World Wide Web ..."

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6
votes
1answer
89 views
+50

How to get elevation profile from .tif dsm on the web map?

I have my dsm .tiff file, pixels are floating point 32bit values giving the terrain elevation in metres. I need to create a web map where user can draw a path and get elevation profile for that path. ...
6
votes
1answer
480 views

How to get a KML of Wikipedia POIs?

I'm looking at the possibility of using a kml layer in a 'geoserver' to provide attribute information on a point. Is there a KML file for the Wikipedia Places articles as it is used in Google earth or ...
0
votes
0answers
10 views

How to set up proxy for Geoserver GetFeatureInfo call? [duplicate]

I have problems with cross domain, I call GetFeatureInfo in Leaflet API. I was looking for solution and saw that proxy could solve that problem. Can you help me how to set it up? I have geoserver run ...
2
votes
0answers
30 views

Displaying buses from a transport network (newbie)

First of all, I'm noob in this subject so please give me some advice. I'd like to develop something like http://traintimes.org.uk/map/london-buses/#73 but with my own city. Unfortunately our MTA ...
1
vote
0answers
20 views

How to get elevation at some location in Leaflet?

I would need elevation value for some point latlng input on leaflet map. Is there similar service to get elevation in metres for some location on the map? Is there a way to use Google Elevation API ...
29
votes
2answers
15k views

EPSG 3857 or 4326 for GoogleMaps, OpenStreetMap and Leaflet

The discussion at What is the difference between WGS84 and EPSG4326? shows that 4326 is just the EPSG identifier of WGS84.. Wikipedia entries for Google Maps and OpenStreetMap shows that they both ...
-7
votes
0answers
29 views

Parsing data from the waterflow sensor to a webpage using the gprs(sim900) [closed]

void imapspixub() { Serial.println("send function call"); //Conversion of integer and float to string for parsing to database char pulsearray[10]; String pulse = dtostrf(pulseCount,2,4, ...
4
votes
3answers
220 views

Using a web map to identify and access data

I am trying to making a webpage where the user pans and zooms on a map, and based on the location and zoom level, some data is displayed on the webpage (drawn from another source). The data that will ...
3
votes
8answers
10k views

How to create an interactive map with jQuery and HTML?

I want to develop a map in JQuery and HTML. It needs to show world country borders. It must be enabled mouse hover effect and also popup (when mouse over) in which I can add my own text. What JS ...
0
votes
1answer
45 views

Mapping application basic for ruby on rails

I am new to build map application using ruby on rails, with rails 4.1.1. I want to create map using map tiles. i have to use PostgreSQL database with postgis. Can you please explain how this flow ...
4
votes
2answers
225 views

Adding large amount of data to web map using ArcGIS API for JavaScript?

I've got problem, I'm creating map based application, and now I have to add to map about 100 000 graphic points, from coordinates. I was trying in many ways to do it, but always process of adding ...
13
votes
6answers
3k views

Visualizing large datasets with Leaflet

When using Leaflet to visualize a large dataset (GeoJSON with 10,000 point features), not surprisingly the browser crashes or hangs. A sub-sample of 1000 features from the same dataset works ...
0
votes
1answer
125 views

How to add title to mapbox <iframe> embed

I am embedding a map I made in Tilemill/Mapbox onto a Wix website. Items of the map such as legend, title, and description are not automatically included in the embed. I learned how to add the legend ...
8
votes
4answers
501 views

How to publish maps to web with no programming required?

I am new to GIS web development. I do not have any programming background and I want all the maps that I design in GIS (shapefiles, using ArcGIS 9.3) to be published on the web. Please tell me the ...
2
votes
0answers
25 views

loading geojson in leaflet

I just added the geoJSON vector layer in leaflet for my hybrid mobile app using phonegap, the problem is that when I add the geoJSON file of size larger than 2mb the application crashes. What is the ...
2
votes
0answers
28 views

Layer Turned Off But Pop Up Showing

I'm having an issue with my popup in my map made using ArcGIS online. One of my group layers contain 4 layers. When I turn all of the layers in this group layer off, the second layer's popup still ...
1
vote
2answers
67 views

Choosing web mapping API to use with MySQL for making map of one country? [duplicate]

I hope this question isn't too general, but I'm new to using maps, I'd like to make a map of one country on which I can plot points according to their geocodes from my mysql database, and to have the ...
1
vote
0answers
17 views

Online GIS app that allows users to log points [duplicate]

I am developing a website for a dolphin volunteer group, on this website they want a system to let volunteers and the public log sightings against a map and add some comments. I have made a system ...
1
vote
1answer
157 views

How to use OpenLayers Geolocate with the OpenGeo Suite Client SDK?

I’d like to have GPS functionality added to my OpenGeo Suite Client SDK application. From what I understand it should be possible to use the Geolocate control from OpenLayers. Preferably there ...
0
votes
1answer
97 views

How to install MapServer on IIS 7.5 with windows 7 OS

I want to use the map server in my asp.net application. For that one, I need to install mapserver on IIS. I am using windows 7 with 64 bit os. I have IIS 7.5 installed on my PC. Can any one help me ...
55
votes
16answers
8k views

How to Start Web Mapping?

I want to start working on a web map at work to map some of our statistics by city. I have an idea, but I'm not exactly sure where to start. Are there any definitive resources that provide step ...
0
votes
1answer
35 views

What projection to use with Mapbox base/reference layers?

excuse me if this has been asked before, but I can not find answer after heavy googling. What coordinate system/projection does shapefiles need to be in to be alligned correctly with mapbox reference ...
0
votes
1answer
97 views

Hover effects using CartoCSS: Is this possible?

I'm trying to make a simple map of parcels in TileMill. Right now when I hover over a parcel, the information for that parcel appears in a teaser. That's simple enough. However, when working with ...
1
vote
0answers
17 views

Error: Could not create and deploy an application with boundless sdk opengeo suite

I work on a web application with Boundless SDK opengeo 4.1, I used the tutorial and followed the exchange and advice on this forum but I have some problems about adding plugins and deploying the ...
0
votes
0answers
28 views

How to hide overlays in Leaflet layerControl if geojson var not found?

i would like to perform a specific task: i have a set of geojson layers, loading features from local files. i have the layercontrol on the map showing available layers to show/hide now, regarding ...
2
votes
0answers
34 views

Mapping Instagram Photos

Is there a tool I could use to map Instagram photos that are using a specific tag? I don't necessarily want to show the image on a map, but rather a pin that someone could hover over to see the image. ...
6
votes
3answers
145 views

How to use Leaflet to efficiently show parts of a massive dataset?

I keep seeing non-GIS web developers running into this problem, and I'm not sure what the solution is. There is some dataset of thousands of items. We want to show a map to the user, with the ...
1
vote
0answers
14 views

How to display specific areas specified by Global MapIt Area ID in Open Street Map using Open Layers?

I've been customizing the Fix My Street platform for the two cities in my country, just to test everything out in it and how it works and maybe implement it for the whole country in the future. The ...
2
votes
4answers
192 views

Linking multiple map displays in Internet Map Server (IMS)?

Has anyone heard of any GIS Internet Map Server (IMS) capability program that will allow multiple displays of data to be geo linked. For example, when one pans on one view it will automatically ...
0
votes
1answer
234 views

how to create custom widget in mapguide fusion template?

I am using mapguide maestro 5.0.1. I want to add custom fusion widget which have option to search layer in multiple ways. I am not able to find any tutorial to add custom widget useful. can you please ...
0
votes
0answers
33 views

Add Stacked Column Chart in InfoWindow

I want to add a a dojo stacked column chart to my InfoWindow (not pop up) that displays when a user clicks on a county in my map. The chart is based on land use information in each county layer from 3 ...
0
votes
1answer
42 views

How to reduce the opacity of a Google Maps layer in CartoDB.js

I have a CartoDB.js-App where I load my vis using cartodb.createVis (I do not manually define Leaflet layers). How can I reduce the opacity of the Google Maps base layer? I tried the following, as ...
7
votes
2answers
2k views

Difference between a WMTS and a WMS?

What is the main difference between a Web Map Tile Service (WMTS) and a Web Map Service (WMS) When should you choose one over the other? What are the (dis)advantages by choosing one ...
2
votes
0answers
33 views

Change symbol size in legend for FeatureLayer (ArcGIS API for JavaScript)

I'm learning how to create web applications using the ArcGIS API for JavaScript. I have a map that is displaying both an ArcGISDynamicMapServiceLayer (which includes two layers) and a FeatureLayer. I ...
1
vote
3answers
759 views

Can ArcGIS Online overlay raster data?

I'm starting to explore ArcGIS Online as my first introduction to web mapping (perhaps not the best choice of cloud services but thought I'd give it a shot). I was intrigued by their discussion of ...
4
votes
1answer
121 views

Free website host for embedding tilemill/mapbox web map

I am hoping to design a simple interactive web map using TileMill. I am then planning on uploading that map to Mapbox.com, where I understand I will be given an embed code to put on a website. My ...
1
vote
0answers
11 views

Is there an easy-to-install website plugin for territory routing?

For an application I'm creating, I want to be able to place dots on a map in locations that my users will be visiting. Each user will have his own locations he has to visit, so I'd like to 'connect ...
9
votes
2answers
1k views

Restrict pan and zoom in ArcGIS Javascript API?

I'm creating a web map of a university campus. I have the map functioning, but I don't want to be able to pan off of the basemap, into whitespace. Do you know of a function that will auto-pan the ...
1
vote
1answer
18 views

Setting Rotation of ExportWebMap

I see from the ExportWebMap specification that rotation can be set in the JSON object sent to the sever. Does anyone know if this can be accessed via the ESRI JavaScript API (v3.9)? I do not need to ...
2
votes
1answer
162 views

How to use tiles in this strange tiling scheme?

I'm looking at cell coverage maps such as this one, and trying to figure out how to get a GIS program to use it as a source of information. Ultimately, I need to be able to combine the output with ...
2
votes
4answers
97 views

Crowdsourcing points by on-click to web map with moderation?

I want to build a really lightweight web map interface where a user can click anywhere on a map, create a point, type in a comment -- ideally all via Facebook, but I don't want to get ahead of myself ...
1
vote
1answer
138 views

How to get layers from current viewport in Openlayers?

In my web map application, I have developed the printing module by using Mapfish with Geoserver. While printing, I need to send the layers to geoserver only which are falls inside the current view ...
0
votes
0answers
17 views

Get Web Map Layer Field Value for If/else Statement

I've been trying to read through the ArcGIS JavaScript API but can't find what I want. I have a web map on my page that is based on my my map stored on ArcGIS online. I want to create an if/else ...
1
vote
1answer
71 views

Using IRelationshipClass

I have three feature classes [CircuitSource(A),CircuitBreaker(B),Sub-Station(C)]. In the Geodatabase A and B has a 1:1 relationship based on a primary field namely 'FEEDERID'. C and B has a 1:many ...
0
votes
1answer
23 views

Is there a public CanTopo Web Map Tile Service (WMS / WMTS) available?

Does anyone know of a public CanTopo WMS / WMTS available anywhere? I'm assuming CanTopo is more modern / up-to-date than Toporama? Alternatively, what would be your suggestions for the most pain ...
117
votes
16answers
42k views

How do various JavaScript mapping libraries compare?

I am working on a web-based mapping system and I'm trying to figure out the best/most appropriate library to use. There are a few of them about and they each have pros and cons. Even after trying a ...
0
votes
2answers
212 views

Architecture for java ee application

I´m new to GIS development. I have read about Openlayers, maps servers (i choose Geoserver), geodatabase (in my case i choose PostGis) and theory of gis in general. I´m developing a Java EE ...
2
votes
1answer
63 views

scaling of results: the comparing of osm-files for a few days - a statistical approach

i am pretty new to Geographic-information Systems so do not bear with me if i ask newby questions: i am interested in gatherin information on schools Some days before i have heard that it is ...
1
vote
0answers
24 views

How to offset/displace overlapping lines in a web map?

I have a dataset of points representing a To/From status - something like distribution centres and delivery addresses. When the user clicks on a point I'd like to show the relationships between this ...
1
vote
2answers
58 views

There is web based bicycle routing planner that considers accidents but I cannot find it anymore, can someone help me?

I remember it uses Google as underlying map and has also a function to rank preferences of the path using forms in which the user can rate routes characteristics, I also remember that is for Los ...