[Interest] QPainterPath issue

[william.crocker at analog.com]

On 06/20/2014 11:57 AM, VStevenP wrote:
> I am trying to use QPainterPath to render a graph. I draw an x and a y axis in
> blue, then use moveTo and QuadTo to draw a curve which crosses over the x axis.
> What I see is that the quadTo operation erases some of my blue x-axis pixels,
> specifically the pixels between the curve and where a straight line between the
> endpoints would connect.
>
> Am I using QPainterPath wrongly? Is there any way I can do the quadTo() such
> that it won't overwrite pixels which are not under the final curve it actually
> draws. It's erasing too many pixels.
>

Sounds like the system thinks your path is closed
and with an active fill brush.
But I defer to an expert.

> - VStevenP
>
>
>
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