[Marble-devel] Plotting custom position data on MarbleWidget (viaPositionProviderPlugin?)

[Konrad Enzensberger]

Hi Ian,

>>I have tried implementing my own PositionProviderPlugin 

try the positionprovider/FileReade plugin,
this is a Gps simulation plugin.
First use marble/routing functionality to create
a route, export the route to:
..\mapdata\routing\route.kml .
The FileReader plugin imports the placemarks from the route.kml,
see if this works.

br, konrad

  ----- Original Message ----- 
  From: Ian Holtham 
  To: marble-devel at kde.org 
  Sent: Wednesday, March 28, 2012 5:26 PM
  Subject: [Marble-devel] Plotting custom position data on MarbleWidget (viaPositionProviderPlugin?)


  Hello. I would like to be able to plot a track of position data (from a custom GPS data source) onto a map displayed in MarbleWidget. Ideally I would like the user to be able to hover over any point on the track and get a display of the data (time, position, etc) at that point?

   

  Could anyone let me know the best way to do this?

   

  I have tried implementing my own PositionProviderPlugin and setting this visible in the MarbleWidget:

   

  Marble::MarbleModel* model = this->model();

  model->positionTracking()->setPositionProviderPlugin( new Marble::CustomPositionProvider() );

  model->positionTracking()->setTrackVisible( true );

   

  However when I run this, the widget only displays a small segment (say 30 degrees) of the map centred at the current position in the direction given by the PositionProviderPlugin with the rest of the widget remaining undrawn.

   

  I am using a QT only build of the MarbleWidget (version 1.2) build on Windows using Visual Studio 2010

   

  Any assistance would be gratefully appreciated.

   

  Ian Holtham

  Software Engineer

   

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