[Marble-devel] Re: how to draw a circle with two GeoDataCoordinates points?
jun yang
slickqt at gmail.com
Mon Jan 10 07:31:46 CET 2011
I got it.
GeoDataLineString line;
line.append(point_center);
line.append(point_on_circle);
? = 2 * line.length(marble_widget->model()->planet()->radius())/111.12/1000;
2011/1/10 jun yang <slickqt at gmail.com>:
> GeoDataCoordinates point_center;
> GeoDataCoordinates point_on_circle;
> GeoPainter *painter;
> painter->drawEllipse(center,?,?,true); //? should fill what ?
> doc said:
> If \a isGeoProjected is true then the outline of the ellipse is drawn
> in geographic coordinates. In this case the \a width and the \a height
> are interpreted to be degrees.
>
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