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

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19 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 ...
1
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0answers
13 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 ...
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0answers
21 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
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0answers
27 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. ...
1
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0answers
7 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 ...
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0answers
20 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 ...
6
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3answers
115 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 ...
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1answer
28 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 ...
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0answers
8 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 ...
1
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0answers
25 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
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 ...
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0answers
13 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 ...
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1answer
15 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 ...
2
votes
1answer
58 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
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0answers
22 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 ...
0
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0answers
19 views

Can i access UTF grids without a server?

I'm creating a slippery map that will run off of a usb stick or cd (client request). I'm able to load up the map, display pre-cooked tiles and some some simple vectors. The client would like some more ...
1
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2answers
56 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 ...
2
votes
4answers
80 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 ...
2
votes
1answer
153 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 ...
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0answers
10 views

ADF Map Rotation Woes

Apologies in advance for the book, but it's a complex issue to explain. We have a legacy web application that uses ArcGIS Server 10.0, ADF.Net, javascript, ASP, HTML, and C# ArcObjects. When the map ...
0
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0answers
50 views

Change Logo in Public Information Web App Template

Anyone know how to change the ESRI logo and replace it with a customized logo in the "Public Information" web application template provided by ESRI? Link the Public Information Template Configurable ...
0
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2answers
44 views

Zip Code Boundary Maps for Commercial Use?

I need images of cities with features, streets, zip code names and zip code boundaries. For example, take this screen shot: This is very close to what I need, except not every zip code name is ...
0
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0answers
16 views

Can tilecache create UTFgrids?

Am i able to create utf grids in tilecache or do i have to move to tilestache? I ask because i am using, and would prefer to continue to use, utmZ10 and not wgs84 or spherical mercator.
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2answers
60 views

Common Web Server for Web Mapping?

I'm planning to create interactive routing map system( for small town only ) which will be running online. My server side language will be PHP and PostGIS/PostgreSQL with using pgRouting and client ...
0
votes
1answer
33 views

Error when using spatial query in arcgis silverlight api

I'm developing a webgis using ArcGIS Silverlight API 3.1 . I used esri interactive SDK sample for spatial query in the webgis .The problem is when i draw a freehand polygon and the polygon intersect ...
1
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0answers
55 views

Show Geometric Network Topology data in the web

I am trying to locate any API's for JavaScript (or other) that will help me to display current linear Geometric Network Topology and add multiple point/line geometry from JSON in HTML/JS. I ...
0
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0answers
26 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 ...
2
votes
4answers
210 views

Building a WebGIS with search functionality for a charity

I am playing with the idea of building a Basic Web based GIS system for a charity. The problem: I work for a charity that deals with people with Cleft Palates. They currently have a website, but ...
0
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1answer
28 views

search a point of interest using GeoServer

I develop an application of webmapping using GeoServer, GeoExt and ExtJS. I want to search my points of interests (layer that exist in GeoServer) so i create a two combox where i have to put the ...
0
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0answers
25 views

custom control on google maps API

I added 4 buttons to a map which zooms in to particular state in country on click using google maps api. I am a beginner and did it using example from google api custom control documentation. What i ...
2
votes
0answers
78 views

Z-Index in GeoJSON features using leaflet

I have a watershed polygon with sub-watersheds contained within the larger watershed. I would like the sub-watersheds drawn on top. Can i control the drawing order of features within a geojson object ...
0
votes
1answer
45 views

How to simplify shapefiles without losing attributes?

I want to simplify a huge shapefiles using mapshaper. However whenever I simplify the shapefile I loose a lot of data attributes. how can we simplify the shape files while retaining at least some of ...
0
votes
1answer
51 views

Map generation failing with Kartograph.js

I am trying to generate a very simple map using kartograph.js. But some how my code is not working. <html> <head> <script src="jquery-1.8.3.min.js"></script> ...
1
vote
1answer
59 views

What sub-meter geolocation solutions exist and how can I integrate them into a web and mobile mapping workflow?

I am the manager of seven water systems. What I am trying to do is map out every meter and valve on to a map and then my workers can have the maps on their iPhones so when they have to go fix a water ...
0
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0answers
11 views

panning problems - highlights screen

We have developed an online map with a panning function. It works ok but from time time when I click and drag it seems to select the whole screen and colour it blue. I can click out of the map extent ...
3
votes
2answers
80 views

How to query DEM elevation values in a web application based on cursor/click point location?

I work for a city government that has LiDAR derived DEM rasters which we would like to make accessible to other departments in the city. The problem is that many departments don't have anyone with ...
0
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0answers
32 views

How to hide features based selection using API for Silverlight?

my challenge is to, when i want to select feature on the map by the mouse the action must be zoom to the feature and all other features hidden in the same layer my application created by API for ...
1
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0answers
37 views

Singapore postal boundaries

does anyone know where to get GIS data for Singapore postal boundaries? I need a shape or KML file which I can then overlay onto google maps to show a neighbourhood break down of Singapore. Any help ...
5
votes
1answer
146 views

How to handle the New ESRI Ocean Basemap

Some of you may have seen this recent (4/28/14) ESRI blogpost - The New Ocean Basemap. ESRI, in their infinite wisdom, has split up their Ocean Basemap into 2 separate services. One with just the ...
0
votes
1answer
81 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 ...
0
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1answer
41 views

How to project feature class located into 3 UTM Zones?

i have created a silverlight API web map application,for Saudi Arabia country, i have created a 3 search button, once search for "X,y", the problem with me is to how to define a probability projection ...
0
votes
1answer
49 views

problem login geoexplorer - redirect IP

I have problems when I want to log the administrative user through GeoExplorer when geoserver is running on a server with public ip but redirection to a private ip. GeoExplorer takes too long to load ...
0
votes
1answer
75 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 ...
2
votes
2answers
49 views

Isometric map tiles with Openlayers or similar

I wish to show a map layer in a browser based tool such as Openlayers or Leaflet however my tiles are projected isometrically. Has anybody done this before?
0
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0answers
52 views

How to migrate Opengeo Suite from localhost to live website

I have installed Opengeo Suite on my laptop. I was trying to follow the OpenGeo Suite user manual: http://suite.opengeo.org/opengeo-docs/webapps/index.html#webapps I implemented the sections ...
0
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0answers
26 views

Examples of Sanborn map WMS?

I'm wondering if anyone has heard of or come across any examples of scanned and georeferenced Sanborn Fire Insurance maps being served as a WMS. I know there are copyright issues, so presumably only ...
0
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1answer
16 views

Decarta - how to refresh map

I am using the Decarta JS API. I am displaying a map with layers. I want to refresh the map and redraw new layers, but I see no way to do this in the documentation. Is there a way to refresh the ...
0
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1answer
57 views

Videos (as headers) in CartoDB Infowindows

I need to know how to embed a video (YouTube or Vimeo) into an infowindow in CartoDB in the same way that an image appears as an image header. Potentially more complicated, when there is no video link ...
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0answers
11 views

Videos in CartoDB Infowindows [duplicate]

I need to know how to embed a video (YouTube or Vimeo) into an infowindow in CartoDB in the same way that an image appears as an image header. Potentially more complicated, when there is no video link ...
1
vote
1answer
44 views

How to tell if GeoWebCache REST API is working?

In my web application, i wanted a service to cache updated data using geowebche. so i worked on seeding tiles automatically with GeoWebCache as in this post: custom time interval for geowebcache then ...