Hi,
I am trying to use the panel map integrated in JOSM (without the menus and the
toolbars) on another Java Application, where I want to load a couple of osm
files.
I have found the MapViewer and the MapFrame classes, but when I try to
integrate them on my JFrame, it crashes. I know that there are some
preferences loaded on the Main class of JOSM and I am trying to replicate
whatever the Main loads so I can use the map panel on my project.
So far I have found this:
Main.platform = new PlatformHookUnixoid();
Main.platform.preStartupHook();
Main.pref.init(true);
which I think are necessary to load the map.
After that I try:
map = new MapView();
frame.add(map);
and it works, showing me an empty map (black), although it says that the
projection could not be read from the preferences and prints an exception:
java.lang.ClassNotFoundException:
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at org.openstreetmap.josm.Main.preConstructorInit(Main.java:258)
at my.application.Main$Initializer.run(Main.java:125)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
at
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
When I try to load an osm layer from a file:
Layer layer = new OsmDataLayer(new DataSet(), "prueba", new
File(""));
map.addLayer(layer);
It simply crashes, throwing this:
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at org.openstreetmap.josm.gui.MapView.setActiveLayer(MapView.java:374)
at org.openstreetmap.josm.gui.MapView.addLayer(MapView.java:173)
at .....my classes....
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
at
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
I am wondering if someone can help me pointing me how can I separate the map
panel from the rest of the application. If it is possible. I just need a map
that shows osm files, nothing more.
Thanks for your help :)
--
María Arias de Reyna Domínguez
Emergya Consultoría
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