I would like to develop a WP7 application that has a map in one portion of the display. Since it needs to be stand-alone, I need a utility that has built-in maps and does not need to surf the internet in order to operate. Is there any technique present there in wp7 to do the same. Please help me to find a solution.
Not possible, since Bing Maps doesn't work offline.
I think you might be able to use your own maps in the Bing Maps control, so you could include them in your application, see here.
Related
I got lots of simple apps or examples that are built using Fabric.js.
Can I use Fabric.js for making advanced applications? I want to check some apps and see it's performance so that I would confirm that Fabric.js can handle big apps too.
We built Fabric specifically to power design editor on Printio.ru. It's used by 1000+ visitors daily.
From other big sites there's easel.ly — visual themes creation tool. Also mywallsticker.de, scrollkit.com, and others.
Large sites that using FabricJS are listed here https://github.com/kangax/fabric.js/wiki/Who%27s-using-Fabric
http://printio.ru/ is the one of best one, what kind of advance apps you are looking for ?
check out the discussion on google groups
https://groups.google.com/forum/?fromgroups#!forum/fabricjs
you will get some idea
Can anyone point me to a good tutorial on how to use the MapKit Framework to enable users to see nearby friends/users on a map? I'm working on an app that resembles the Grindr/Blendr functionality only with a completely different purpose...
There are several good tutorials on how to use the map kit framework in general.
Here's a link to something that will get you started.
If you are interested in a framework that will create the map and add the nearby users to it (which is not a built-in feature in the map kit framework. You have to get these users' locations and add them yourself), you should take a look at Scringo
I'm trying to build an application that will use open source maps from Open Street Maps (though the concept should be applicable to any map provider). The application will enable the user to specify a number of waypoints along a route prior to departure.
Because I don't have a data plan for my cell phone (and because rambling in the countryside rarely gives you a good connection), I want to be able to pre-load the relevant map tiles for the waypoints and/or route before departure so that maps can continue to be used without a data connection.
My initial thoughts are to download the required tiles from the map provider and store them in isolated storage. However, the Bing Maps control implementation, which uses the TileSource class relies on returning an absolute URI that it can download the tile(s) from, which clearly won't work with data stored in isolated storage.
The question has already been asked: Windows Phone 7 Map Control with custom layer in offline mode, but wasn't answered and I'm wondering if since then anyone has cracked the problem.
I've seen this done with a custom layer placed over the map. Tiles are then loaded from anywhere you like (IsolatedStorage, online, somehwere else?) into the custom layer.
Sorry, I don't have any code I can share which demonstrates this at the moment but am currently doing something very similar.
I built a small prototype using OpenStreetMaps for Android. I think it might be interesting to look at the repository and therefore, find a solution similar to mine. I did download the maps before hand, but maybe you can use an online solution for this. This is the repo: https://github.com/kikofernandez/OpenStreetMapExample and the video of how it could look like: https://vimeo.com/40619538.
I used for this prototype OpenLayers, OpenStreetMaps, JavaScript and a WebView in Android. I would like to give you further details but it was just a prototype.
If you can store the data locally (embed it in the XAP), you can reference it via an absolute URI. Chris Walshie talks about it here.
So, for example, once you have the installation path for the app, you can reference the resource like this:
Uri toResource = new Uri("file:///Applications/Install/4FFA38B5-00AF-4760-A7EB-7C0C0BC1D31A/Install/EMBEDDED_RESOURCE", UriKind.Absolute);
Have you set the Build Action on your image(s) to Content?
If your app is running on WP8 then use the built in maps control in the Windows Phone 8 SDK as this already supports offline maps out of the box. If targeting WP7 it is possible to get offline maps to work but takes a lot of work. I created this for a customer a few years ago and I believe that it took me a little over 3000 lines of code to do. Mind you they wanted to also have a framework for adding tiles from various sources such as downloading over and area and downloading zipped files. They way I managed to get the rendering to work was to a canvas to the map without setting it's position. This will be default make it a child of the map but it will not move. I then made the canvas the same size as the map and used the resize event to resize the canvas should the map be resized. I then used the view change event to trigger a method to render the tiles. When this event fired I first calculated all the tiles in view using the code found here: http://msdn.microsoft.com/en-us/library/bb259689.aspx
I then would pull the tiles from isolated storage and draw them on the canvas. For performance I keep track of which tiles I added to the canvas so that if the tile was still in view I simply changed it's position rather than reloading it from isolated storage. I also removed any images that were no longer in view. Overall this works fine but there were some minor issues such as not having the smooth transition between zoom levels. If you really wanted that it is possible to get that to work but requires a lot more math. Also, if you zoom into an area where there is no tiles you end up with an empty map. You can create a custom map mode to prevent the user from going into areas where you don't have tiles.
A solution
The question is a bit old, but there's a solution for anyone who can use Qt.
The solution is not limited to the Windows Phone platform, I've done it targetting Android, and it also works on my desktop.
In Qt, you'll want to patch the OSM Plugin used by QtLocation. It's simple, quick and easy.
How to do it ?
A quick implementation could modify the QGeoTiledMappingManagerEngineOsm class to make it call your own QGeoTileFetcher instead of QGeoTileFetcherOsm.
There may be better ways to acheive this, but at least it works for me.
Basically, you make a fetcher that reads tiles from the filesystem instead of the network.
You build your filesystem database once, from an online resource for instance (see below) and you deploy it with your application for its offline use.
Where do I get tiles from ?
Information how to get the tiles to your offline implementation is available here :
http://wiki.openstreetmap.org/wiki/Slippy_map_tilenames
Here are two sources for tiles that can be used for free :
Open Street Maps project servers
Mapquest Open Tiles servers
Take care of the licensing and terms of use.
Open Street Map
Project : wiki.openstreetmap.org/wiki/Main_Page
License : www.openstreetmap.org/copyright
Terms of use : wiki.openstreetmap.org/wiki/Tile_usage_policy
Servers are currently named like *.tile.openstreetmap.org
MapQuest-OSM Tiles
Project : developer.mapquest.com/web/products/open/map
License : opendatacommons.org/licenses/odbl/
Terms of use : developer.mapquest.com/web/info/terms-of-use
Servers are currently named like otile*.mqcdn.com
(Sorry for strange links : I haven't got enough reputation to post real links).
the iPhone SDK provides with MapKit a simple solution for maps und reverse geocoding without any additional costs. Does anyone know if there is a similar Framework for Cocoa on OSX? I know that google maps is capable of that but as far as I know and understand I have to pay while using google maps in a commercial application?
Thanks for your answers
twickl
You won't have to pay as long as you don't use the quota.
The api documentation is here :
http://code.google.com/apis/maps/documentation/geocoding/
If you plan to use it reasonably, this will remain free (no api key is required anymore by google)
All,
How can I use (NS)Views from other applications as Layers in my CA app. I.e. I'd like to display a Keynote presentation as Layer in my CA app.
I found the iChatTheatre API which looks promising - however I'd need the oposite. An API to get the contents from an app - not to provide it.
Any pointers?
Thanks.
Take a look at the "Son of Grab" sample.
It shows you how to use the CGWindow*() API that was introduced with Mac OS X 10.5
The API allows you to get the content of a whole window, so you have to find a way to get the portions of the window you are interested in.
I don't believe there's a public way to do what you're talking about. Your best approach is probably to reverse-engineer the iChat AV system (the receiving side) and see if you can replicate it. Some initial work has been done by the ICP project. It's very sketchy, but it's a start.
Another approach is the QuickLook API, which has the advantage of not having to run the source application. So far Apple hasn't made the reading side of that API available either. Ciarán Walsh did some handy reverse engineering on QL a couple of years ago, and I've played with that approach, but it is somewhat klunky. You can generate the panel as Ciarán explains, but put it off screen. You can then copy the contents into an NSImage using NSBitmapImageRep -initWithFocusedViewRect:. Unfortunately you can wind up with some funky visual artifacts in this (like scroll bars in some cases), but for some applications it can be effective.