[Marble-devel] Paint in Marble

Kyle Shannon ksshannon at gmail.com
Mon Aug 8 16:16:46 UTC 2011


I am new to marble, but I think you can use the geopainter,

http://api.kde.org/4.x-api/kdeedu-apidocs/marble/html/classMarble_1_1GeoPainter.html


/**
 *
 * Kyle Shannon
 * ksshannon at gmail.com
 *
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On Sun, Aug 7, 2011 at 17:06, <tom.grope at st.ovgu.de> wrote:

> Hey there,
>
> I have my own project for the visualization of data points and I use
> marble. My problem is that I want to draw circles / ellipses, whose radius
> is dependent on geographical distance (meters/kilometer).
> I know how to generally draw in marble - thanks to your tutorials!
> However, QPainters draw-methods bases on pixlesize.
>
> The problem is that i have no idea how to
> convert a geographical size into pixlesize for using QPainters drawmethods
> or
> find a method that draws a circle / ellipse, whose radius corresponds to a
> geographical distance. (for example the lenght of a geodatalinestring)
>
> I would thank for any advice or idea.
>
> Tom
>
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