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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'>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?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'>Could
anyone let me know the best way to do this?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:10.0pt'>I have tried implementing my own </span></font><font
size=2 face="Courier New"><span style='font-size:9.5pt;font-family:"Courier New"'>PositionProviderPlugin</span></font><font
size=2><span style='font-size:9.5pt'> and setting this visible in the
MarbleWidget:<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Consolas><span
style='font-size:9.5pt;font-family:Consolas'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:9.5pt;font-family:"Courier New"'>Marble::MarbleModel* model = <font
color=blue><span style='color:blue'>this</span></font>->model();<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:9.5pt;font-family:"Courier New"'>model->positionTracking()->setPositionProviderPlugin(
<font color=blue><span style='color:blue'>new</span></font> Marble::CustomPositionProvider()
);<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:9.5pt;font-family:"Courier New"'>model->positionTracking()->setTrackVisible(
<font color=blue><span style='color:blue'>true</span></font> );<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:9.5pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:9.5pt'>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 </span></font><font size=2 face="Courier New"><span
style='font-size:9.5pt;font-family:"Courier New"'>PositionProviderPlugin</span></font><font
size=2><span style='font-size:9.5pt'> with the rest of the widget remaining
undrawn.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'>I am
using a QT only build of the MarbleWidget (version 1.2) build on Windows using
Visual Studio 2010<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'>Any
assistance would be gratefully appreciated.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=navy
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>Ian Holtham</span></font><font color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=navy
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>Software Engineer</span></font><font color=navy><span
style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=navy
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>Software Radio Technology plc</span></font><font color=navy><span
style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=navy
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>Wireless House</span></font><font color=navy><span
style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><st1:City w:st="on"><st1:place
w:st="on"><font size=2 color=navy face="Courier New"><span style='font-size:
10.0pt;font-family:"Courier New";color:navy'>Westfield</span></font></st1:place></st1:City><font
color=navy face="Courier New"><span style='font-family:"Courier New";
color:navy'> Industrial Estate</span></font><font color=navy><span
style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=navy
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>Midsomer Norton</span></font><font color=navy><span
style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><st1:City w:st="on"><st1:place
w:st="on"><font size=2 color=navy face="Courier New"><span style='font-size:
10.0pt;font-family:"Courier New";color:navy'>Bath</span></font></st1:place></st1:City><font
color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><st1:country-region w:st="on"><st1:place
w:st="on"><font size=2 color=navy face="Courier New"><span style='font-size:
10.0pt;font-family:"Courier New";color:navy'>England</span></font></st1:place></st1:country-region><font
color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=navy
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>BA3 4BS</span></font><font color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=navy
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>Direct line +44 (0)1761 409 516</span></font><font color=navy><span
style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=navy
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>Office +44 (0)1761 409 500</span></font><font color=navy><span
style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=navy
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>Fax +44 (0)1761 410 093</span></font><font color=navy><span
style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:navy'><a
href="http://www.srt-marine.com/">www.srt-marine.com</a></span></font><font
size=3 face="Times New Roman"><span style='font-size:12.0pt;font-family:"Times New Roman"'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><o:p> </o:p></font></p>
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