Questions tagged [web-mapping]

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

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6
votes
1answer
623 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 ...
6
votes
1answer
2k views

Could someone suggest a good GeoExt Tutorial? [closed]

In my research I've found these two, which are only explaining the basics. Developing OGC Compliant Web Applications with GeoExt GeoExt Workshop (Pdf) And of course the native (but short) tutorials ...
6
votes
1answer
230 views

Interactive geographic region definitions [closed]

Background An organization has regions within a province, but has no list of coordinates that define region boundaries. I would like to draw custom polygon areas on a map using a web-based and user-...
6
votes
3answers
912 views

Accessibility Mapping

The realm of cartography depicts many facets of the physical space within both urban and non urban settings. Specifically within the urban setting lies the challenge of navigating spaces such as ...
5
votes
4answers
228 views

common task in mapping applications

Two friends and I are developing a series of web mapping applications, only with some basic tasks (measure tools, identify polygons, and others). We are looking for suggestions on what to implement to ...
5
votes
7answers
2k views

Problem with Swiss coordinate system overlay in WMS

I have administrative boundaries data for communities in Switzerland from SwissTopo. Original data came in shape files with 'Bessel 1841 Hotine Oblique Mercator Azimuth Natural Origin' projection. ...
5
votes
4answers
6k views

Sites that demo freely available Basemaps?

I've seen such sites in the past. I remember seeing one put together by Wm Lerer at a conference a couple years ago. What I'm looking for is a map that demonstrates all (well, at least a lot) of the ...
5
votes
6answers
4k views

3d earth mapping with javascript or browser plugin

I am currently working to develop a web-based mapping application. A lot of the mapping tools such as google maps are 2d imagery. I know that google earth has a 3d browser plugin, but a requirement of ...
5
votes
2answers
979 views

Label polygon at central position dynamically

Does GeoServer have a way to display polygon's labels, in a centralized way and moving it to the center of displayed polygon at that "screen moment", dynamically? I'm trying to make labels visible, ...
5
votes
3answers
2k views

map of europe in list of lat/long points

I'm looking for a list of lat/long coordinates which will describe all countries of europe. Ideally the list will also describe on which country each closed path belongs to. I'm imagining something ...
5
votes
3answers
16k views

OpenLayers2 change feature's style

Working with OpenLayers 2.11, I'm desperately trying to change my feature style as the user selects it (fairly simple I agree!). Indeed, It seems easy but I can't see where It fails, perhaps someone ...
5
votes
3answers
6k views

What is Geonode ? What all can be achieved using it?

Ok i have searched the site and did not find enough information concerning regarding what is a Geonode so i really thought i may ask everyone who has used it to give their opinion. I am trying to set ...
5
votes
1answer
1k views

Advice on benchmarking my Tile Server (Apache2+mod_wsgi)

I'm wondering what advice people have for benchmarking a tile server? Specifically, I'm running a TMS using TileLite, and Vector Tiles using TileStache. Both are running under Ubuntu Server 10.10 / ...
5
votes
2answers
4k views

How to transform EPSG:3857 to tile pixel coordinates at zoom factor 0?

I'm creating a Leaflet map with an WebGL overlay (using L.CanvasOverlay) which renders a street network on the GPU. Let's assume I have a point (1497143.62, 6896952.18) in EPSG:3857 and want to ...
5
votes
1answer
4k views

Find bounding box of a Google map

Is it possible to get the bounding coordinates of a google map that a user has zoomed to using Javascript? I see that it can be done using the Google App Engine but I don't know if is possible using ...
5
votes
2answers
2k views

What does Scale mean in the reference of Desktop GIS or WebGIS?

I'm having trouble understanding the meaning of the concept of scale when it comes to maps on screen, i.e. either in a Desktop GIS or in a WebMap. When it comes to paper maps, the idea is very clear. ...
5
votes
2answers
2k views

Quickly create contour polygons from cost points using OSS for web app

This is related to a previous question I've asked: Create filled contour map with GRASS I've created a point layer using OpenStreetMap data and pgRouting's driving_distance() function, where the ...
5
votes
2answers
4k views

How to apply custom OSM map style in OpenLayers?

I have a small web mapping application based on PostGIS/GeoServer/OpenLayers. I'm overlaying few WMS layers served by GeoServer and using OpenStreetMap as a background. In OpenLayers OSM is simply ...
5
votes
6answers
560 views

Is anyone using JSONP in Web mapping applications to get around the browser same origin policy?

Javascript based Web mapping apps that use ajax requests to get data from a server are limited by the Same Origin Policy to only request the data from a server in the same domain (subdomain and port). ...
5
votes
2answers
663 views

Is it possible to 'scrape' shapefile layer from a map saved as pdf/jpeg?

Data on the changes in voting district delimitations in SA is available as a series of maps (no shapefiles made official). I'd like to create a shapefile by scraping the boundaries from the individual ...
5
votes
2answers
8k views

Animate feature in openlayers

In my map web app, I have a play pause button that show vehicle route history.I get lat lon from database and create route that vehicle traverse. At below site go to history tab after and choose ...
5
votes
3answers
525 views

leaflet problems displaying postgis table geoserver wms

I have a published postgis county table on geoserver. In the layer preview it looks like this in my very simple JS code <!DOCTYPE html> <html> <head> <meta ...
5
votes
2answers
3k views

How Can I make UTFGrid files?

I have been looking at the UTFGrid specification and the usage of UTFGrid in Openlayers. How do I create the required UTFGrid files for my data in PostGIS?
5
votes
2answers
431 views

How can I setup a simple web mapping system?

I'm new to mapping and GIS and I'd like to setup a mapping system to display information on a map, I think the following could work but I'm not sure how good it is.. I store my data (lat, lng etc) on ...
5
votes
1answer
1k views

GIS-based reporting and maintenance tool

Background Conceptually, I am looking for a tool, or suite of software tools that can be readily integrated to help browse data using a GIS-based map (such as Google Maps). The proposed architecture ...
5
votes
3answers
439 views

GIS Application for online map and journey planner

I am planning to implement an online map application with journey planner for a city. I don't have any experience in GIS development but I have a few years of experience in Java development. So ...
5
votes
1answer
3k views

How to use geoserver to display data on hosted website [closed]

I am using geoserver to display GIS data on my hosted website when geoserver is running I can see my data on my website in both firefox and Internet explorer but only on my laptop where I have ...
5
votes
2answers
774 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 ...
5
votes
3answers
1k 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?
5
votes
1answer
306 views

Which GIS Software is Right for small manufacturing trends analysis?

I'm a graphic designer who has been tasked with choosing a mapping platform for the manufacturing company I work for. One of my colleagues began our project by using a trial version of ArcGIS to ...
5
votes
1answer
6k views

Is it possible to create filters based on attributes for markers in Leaflet?

I need to create filters based on attributes of markers. I have markers defined this way: var locations = [ ['AB11 5HW','17','A',57.147701,-2.085442 ] , ['AB11 8DG','3','B',57.129372,-2.090916 ] ,...
5
votes
2answers
1k views

What's role of WFS-T in webapp?

I have more experience in "traditional" (Java EE) webapp development, and I am trying to figure out a decent design for a mapping web application. My application has a map, and users can see and edit ...
5
votes
3answers
2k views

PHP MGRS Conversion Formula/Library

Currently, the formula I'm using to convert MGRS to Lat/Long and vice versa is giving me slightly different results than most other conversion utilities. It's usually between 10 to 30 feet off. This ...
5
votes
3answers
4k views

GeoServer in Windows x64 - war file installation versus Windows installer?

After running a GeoServer war file installation in Tomcat for some time in Windows Server 2008 x64, I've become increasingly unhappy with Tomcat's chronic memory issues and leaks. Now that the ...
5
votes
1answer
529 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 ...
5
votes
1answer
1k views

What is the Market share for open source web-GIS systems?

I would like to know the market share of 3 web-GIS systems, deegree, GeoServer, Geomajas). Which one is more popular? Are there any evaluations regarding the market share of open source web-GIS ...
5
votes
2answers
3k views

How to serve local maps for an offline HTML5 webmapping app?

How could one serve maps (tiles in wherever format possible) within a Android device to be consumed by an offline webmapping app also accessed within the device's browser?
5
votes
1answer
766 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 ...
5
votes
2answers
323 views

Simplest way to make web maps with lots of shapes

I have some computed data about US Census blocks. I'd like to make a web map to display that data. I've searched around and found various tools, but I can't tell what is the simplest "lazy man's way"...
5
votes
1answer
500 views

Looking for interactive map visualization software that allows user input

I am looking for a software tool that allows to create maps which can be customized by the user later on. To be more concrete: the user should be able to choose different indicators, create his own ...
5
votes
1answer
344 views

How can polymaps grab polygons from a database?

From my understanding polymaps uses po.features() or po.geoJson to display polygons on a map. The former you embed your polygons in the javascript. The latter, you embed your polygons in a .json ...
4
votes
5answers
3k views

Display ESRI Shapefiles in a map in a browser. (Not in google maps)

I have a series of shapefiles that I need to render as a map on a webpage. I have an ASP.Net server, although I would prefer something that will work on Linux servers. I would like to find an easy to ...
4
votes
2answers
2k views

What are the key features of a web map?

In response to comments, I'll rephrase the question: We're building a web based mapping and data querying system. The data are at several different scales, and should be queryable at these scales. ...
4
votes
2answers
11k views

OpenLayers2 - zoom to selected feature

If I have this vector layer: var vectors = new OpenLayers.Layer.Vector("vector", {isBaseLayer: false}); var feature = new OpenLayers.Feature.Vector( OpenLayers.Geometry.fromWKT( ...
4
votes
3answers
4k views

Moving from MapInfo to web mapping

I use MapInfo and have a lot of data in .tab format that I would like to put into a database in order to access it through a website. I would like to continue using MapInfo as my GIS programme and ...
4
votes
3answers
1k views

How to create a time series GIF web map?

I found a web map on the New York Times showing early spring conditions throughout the US. I've seen a much more complicated time-slider widget that can be used with ArcGIS Online web maps, however, I ...
4
votes
2answers
2k views

How to hide leaflet base map?

I'm building a webGIS using leaflet library. Since the data visualization is for only a certain region, it seems that the broader leaflet base map looks a bit distracting. I wonder if there's a way to ...
4
votes
3answers
887 views

Is there a web mapping server works on a linux shared hosting account? [closed]

Question: Is there a web mapping server software out there that works on a typical linux shared hosting account? Background: I have been trying find a web mapping server that would allow me to serve ...
4
votes
1answer
567 views

How is StreetDirectory.com web map application developed?

I wonder can you tell me how is developed map application like on this site? http://www.streetdirectory.com What API is used?
4
votes
1answer
3k views

Changing the line color of a marker box using OpenLayers

I'm trying to figure out how to change the line color of a marker box in openlayers. I've been learning from the following example: <!DOCTYPE html> <html> <head> <meta ...