QMapControl

**migel1976** · 30th May 2010, 09:29

Hello. Vey intersting project, i'm really want to use it in my application, but i want to know is it possible to use Map tiles which stored lacaly, i'm only intersting OpenStreetMap.
If possible how to do it?

**rage** · 30th May 2010, 11:54

Hi Migel,

you can use the function enablePersistentCache to store map tiles locally. But there is currently no script to initialize the cache with a map region automatically. So you have to browse manually through the area which you want to be cached.

**migel1976** · 30th May 2010, 12:06

Thank you for answer, is it i'm right to understand i can download osm file area which i want to use (for example Moscow Region, Russia) from openstreetmap and after that load it use enablePersistentCache?
Or first time i conecting with server and after that i'll cache region which are intersting for me, and in next start application i can load it from cache

//! Enable persistent caching of map tiles
/*!
* Call this method to allow the QMapControl widget to save map tiles
* persistent (also over application restarts).
* Tiles are stored in the subdirectory "QMapControl.cache" within the
* user's home directory. This can be changed by giving a path.
* @param path the path to the cache directory
*/
void enablePersistentCache ( const QDir& path=QDir::homePath() + "/QMapControl.cache" );