On Sep 17, 4:04 am, "Thomas Breuel" <[EMAIL PROTECTED]> wrote:
> > i'm trying to draw the Bounding Boxes of the recognized Text onto the
> > Image, and output it. As suggested by the documentation I'm using a
> > lua script. For that i need Rectangle / Line / Pixel drawing routines.
> > The Wiki and the included documentation as well as grepping trough the
> > source files didn't help finding such routines. Maybe someone here
> > knows where I should search further ?
>
> We haven't bound any SDL routines for that yet. It would be great if you
> could look at the SDL documentation for drawing routines and provide a small
> patch to iulib/utils/dgraphics.{cc,h}
I've actually worked with SDL before, but at the moment i can work
with writing directly on the output image. If I should need more
graphical debugging features, i'll keep in mind to code it nicely and
submit a pach ;) .
>
> > Obtaining the bounding Boxes in lua is not a problem, drawing them
> > onto the image is. I tried "drawing" pixels in the bytearray read from
> > a file, but that also failed. Following code has no effect on the
> > output image ( it should have a diagonal line ) :
>
> That's because you're drawing a one pixel wide line, and you're probably
> scaling the image down a lot during display; the line just disappears. If
> you make it several pixels wide, you will be able to see it.
Ok, that was it. Thanks, Thomas.
>
> Cheers,
> Thomas.
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