The examples all seem to use the countries primary language when rendering the maps which is cool but is challenging when I'm looking at countries written in languages I'm not familiar with. With that in mind how I can setup the map view to show all the cities, countries, etc. in a specified language?
I'm assuming that you are using the default OpenStreetMap source, but the same applies for all image-based maps. For image-based maps the labels are part of the images that are loaded from the map service to display the map. For example, see the following OpenStreetMap map tile, which shows a part of Japan, you can see that the label is in the image itself: https://tile.openstreetmap.org/3/7/2.png
As such there is no way to change the locale on the fly in the component itself. Instead, if you want to display labels in a different language, you need to use different map data that provides images that contain the labels in a different language. OpenStreetMaps has a Map Internationalization page that provides some information and resources. There are also commercial map services that provide maps in different locales. When you have found a service that provides map data in the locale that you want to use, then you can configure a source in the map component to load data from that service. See the map sources documentation on how to do that.
Related
I have a common use case that I haven't found documentation or examples on. I've added data to my iOS Mapbox app via TileSets in MapBox Studio. I'd like to simply implement a UISearch function on the data in that Tileset using some attribute. For example, I've added a TileSet with 100 different roads in some county in Alaska, and I'd like the user to be able to search for a specific road in the search bar. This seems like it should be easier than I am making it, but I've been working on it for weeks. The original data is geoJSON but I'd like it to be hosted in MapBox Studio so I can update the data without needing to update the app once its released.
Note that this is different than the visibleFeatures function which returns MGLFeatures by location or Rect. I really just need to get all features list from a layer so I can populate it in the UISearch functionality.
Any suggestions? Much appreciated.
Update after talking with Mapbox customer support and folks familiar with how to do this.
Two ways to query features in map:
(1) use the MapBox visibleFeaturesAt() function for features within the rendered map: lots of documentation on this. But this is limited in that it only returns features nearby to your mapview camera. If you want to do a big global search, can't rely on this. So second option is
(2) for global searches, transition to using an external database outside of mapbox. Mapbox isn't designed to be searched up globally for features like this question. If you want to search an attribute that is unrelated map-wise to current view, start using a back-end database like FireBase.
I have an application that successfully uses a pre loaded tile cache of Open Street Map .png files for a small city area about 20km x20km to support the presentation of tourist information on the web, iPad and iPhone. It is written in HTML5 and uses MoSync to create the wrapper to deliver it on the mobile devices.
This approach works well for cities but I would like to extend the app to work in countryside areas (in the UK initially) where if I could access it, Ordnance Survey mapping 25000,50000 and 250000 would deliver a much better user experience.
My specific questions are:
How do I get hold of topographic tiles?
Can I get tiles that have the same slippy map structure as OSM.
Can I use Ordnance Survey as a source for the UK and if so is it a one off license fee?
What zoom levels are available? I expect 25000, 50000 and 250000. Is 100000 available?
What formula do I use to identify the specific tile from a lat and long pair?
Will all the tiles at a specified zoom level be the same delta lat and delta long? If not how do I tile them?
Answering a few of your questions:
There are several OSM based maps with topographic elements. Take a look at the list of tile servers and the list of OSM based services. Remember to check each usage policy first before using them in your application.
For determining the filenames of the slippy map for a given latitude, longitude and zoom level, read the slippy map tilenames page in the OSM wiki.
I'm trying to make an application that is a map of my High School, in which the user can click a button to search for either a room or a locker.... My goal was to have the room/locker number correspond to a point on several hidden "number lines" in different areas on the Nib file/display, and when a certain input is received, the corresponding number would light up or show its location (i.e. I don't have to enter every locker location for instance, only the first and last one in each hallway, and the number line generated between the values I enter would represent all the lockers in-between).
I'm using Xcode 4.3.3 if that helps.... Structure-wise I wanted to use the Tabbed-application template and have one tab for the actual Map, one for entering which locker you are looking for, and one for entering which room you want to find. I'm new to iOS programming so I don't know if there is a better way to accomplish something like this, and I am open to any suggestions or advice. Thanks!
You could marry MapKit with your own database in which you'd define the coordinates for rooms, banks of lockers, etc. See Location Awareness Programming Guide which shows how to integrate maps in an app. I can imagine that you could define MKOverlay objects for rooms and ranges of lockers. Or you could simply define MKAnnotation objects for points of interest (cafeteria, etc.).
But some combination of overlays and annotations using MapKit seems like a logical solution.
You might also use the MapBox iOS SDK to do this, along with an interactivity layer as described at http://mapbox.com/tilemill/docs/crashcourse/tooltips/
I want to convince some clients to use MapServer and OpenLayers. Please can anyone suggest attractive websites to show off the possiblities!
The clients will be impressed by:
A density map (otherwise known as a heat map, colour-shaded grid coverage, contour plot...).
The ability for the user to download the underlying data for the density map, restricted to the area being viewed, in some format such as netCDF.
Standard OpenLayers stuff. Zooming, panning, scale bar, overview map...
Different base layers. Could be WMS, Google, Bing...
Searching for a placename, map is panned to display the place.
Exposing the heatmap data for other people to use in mashups as WMS or WCS
MapServer.org is back up but demo.mapserver.org seems to be down right now :( But from memory their examples didn't have the "wow" factor. The OpenLayers examples demonstrate only one or two features per example - I want something to wow the clients by showing all the capabilities in one example.
PS If you have good examples that use some other open source tools, post them by all means. But just JavaScript please: customer says no rich client.
EDIT Come on StackOverflow, someone must have an example that uses a density map?? I'm even offering a bounty now...
Note this answer is no longer relevant. The open source maps have since been replaced with a commercial alternative by a different company
http://maps.seai.ie/wind/ - mapping onshore and offshore wind speeds and farms in Ireland
http://maps.seai.ie/geothermal/ - mapping geothermal temperatures in Ireland, and borehole data
uses WMS services (and TileCache) for all the layers, so can be accessed by other client GIS's (well once I've set up metadata etc..)
has a variety of different base maps to choose from
built using MapFish / ExtJS
has drop down gazetteers for County and Townland (an Irish administrative unit)
all the basic map navigation tools and a simple info tool
right click on a layer to set transparency
uses MapServer opensource back-end, plus SQL Server 2008
The systems (and a third more complex Bioenergy Intranet system) got a mention here: http://www.geoconnexion.com/uploads/renewableenergy_intv9i4.pdf
http://haiticrisismap.org/ openlayes + geoxt
would it be possible to create a template map for the client with a bunch of data on it, census, socio, create some simple fake buffers.
Maybe have a look at the HeatMapAPI for Google Maps (not sure you'll wow the client with that though).
Another density map: http://maps.glassfish.org/server/ (showing the use of GlassFish around the world).
We're using the OpenLayers Heatmap layer, mostly because (for us) it handles large data volumes better than the Google Map version (your mileage may vary)
http://www.patrick-wied.at/static/heatmapjs/demo/maps_heatmap_layer/openlayers.php
By large data volumes, I mean location datasets with 100K+ rows
It also works nicely as an ASPX page with dynamic realtime data retrieval from an SQL Server database. I've used a stored procedure to pre-process the data into the array format, grouped by Latitude & Longitude.
For those that need a translation table to convert their UK Postcodes into Latitude & Longitude, here's a good source:
http://www.doogal.co.uk/UKPostcodes.php
The OneGeology Portal (http://portal.onegeology.org/OnegeologyGlobal/) has been online for about 10 years, currently running OpenLayers 2, with an OpenLayers 3 version in development.
The portal attempts to create a geological map of the world by pulling together disparate OGC services provided by data suppliers (mostly Geological Surveys) from across the globe. The portal provides access to data from WMS, WFS (simple and complex feature), and WCS. The portal uses CSW to help manage which functionality is available to a user, and provides the ability to style WMS layers through the application of custom SLD. Map contexts can be saved, shared and loaded using WMC.
There is a gazetteer to help you zoom to a location of choice, the ability to change projections, and scales, and the ability to create a KML file to allow the service to be used in Google Earth. Transparency can be changed on all layers.
There are currently 353 layers.
When the OneGeology project started, all documentation was geared to the support of services provided by MapServer, and many of the services in the portal are MapServer services. However, because the portal utilises open standards, any software that can provide services to those standards can be included.
This is an example of a classified grid generated in MapServer and displayed by OpenLayers: https://maps.greenwoodmap.com/sublette/mapserver/map#zcr=1/2690000/1170000/0&lyrs=slopesZ,townlim,ownership,roads. The raw, unclassified slope data can also queried by map click.
http://railskits.com/map/
Would you like to launch your own
google map mashup? Need a way to
easily get data onto a map, but don’t
want to have to dig through piles of
poorly documented Google Maps
javascript code?
The Map Rails Kit allows you to deploy
a map mashup instantly. It extracts
all the Google Maps implementation
details, organizes all the
customizations into an easy to use
config file, and reimplements the map
controls, bubbles, and markers so your
app looks unique.
Populating your map with markers
consists of working with a few simple
ActiveRecord models so it’s amazingly
easy to get started. Create marker
records with titles, bubble content,
and location. If you specify just an
address to your markers, your markers
will be automatically geocoded for
you. You can even add tens of
thousands of markers to your maps
easily, and they’ll dynamically load
onto the map only when they are
currently in view as your users
navigate the map.
The Kit includes all the usability
polish that your users would expect in
a commercial map mashup. Their current
map settings are always saved via
session so when they come back to the
page later on, they’re right where
they left off before. For new
visitors, we support hooking into an
ip2location service in order to
initialize their current position. So
they immediately see their current
spot on the map, and can begin
interacting with it.
This Kit was authored by Jacques
Crocker.
This is kind of subjective, but I don't find the Google Maps API nearly as daunting as the blurb makes it out to be. I don't think I'd pay half a grand for an API to the Maps API — especially since you can buy a whole book on the topic for like $15 even if you find Google's docs lacking.
This guy doesn't even make it clear what it is he's selling. He makes the features of using the google maps API with Rails sound more difficult than entire feature set of Google maps itself.
There are plenty of other plugins and/or gems available that do more or less the same thing with slightly more effort involved and the book of course (possibly more than one at this point).
If you want a turnkey solution for stacks of money, .NET or some more commercial platform will have more options. I would avoid using this guys solutions out of selfishness, if he does well they'll be others with more colorful marketing making such grand solutions. After which Google will be clogged with them and we'll have to wade through dozens of such spectacular offerings to find the better, albeit less polished (less advertised) open source versions.
Are there any good googlemaps plugins for rails?