Re: [Sc-devel] relative coordinates in SCUserView

[thor <th.list@xxxxxxxxx>]

On 11 Dec 2007, at 10:39, Jan Trutzschler wrote:

> getting the normalized position is fairly simple. it would like this:

: ) Yes I understand that. (and it would be just as easy to map  
pixels to 0-1)

I might be misunderstanding you, but when I design a GUI, I think in  
terms of
"this view should be 120 pixels from the left" and not "this view  
should be 0.2393 * viewWidth
from the left".

I think it's natural to think about views and drawing in terms of  
pixels.

Interesting if there are differences in background here. I'm not an  
engineer so
I tend to think in "real" numbers. An engineer perhaps likes to think  
about everything
in terms of 0-1. ??? : )

Not that I'm labeling you an engineer Jan!!!

t



> (
> var w;
> w = SCWindow.new.front;
> SCUserView(w, w.view.bounds)
> 	.mouseMoveAction_{|v, x, y|
> 		"normalized position %".format((v.mousePosition /  
> v.bounds.extent)).postln;
> 		"relative position %".format(v.mousePosition).postln;
> 		"absolute position %".format((x@y)).postln;
>
> 	}
> )
>
> jan
>
>
> On Dec 11, 2007, at 11:10 AM, thor wrote:
>
> > On 10 Dec 2007, at 21:11, Jan Trutzschler wrote:
> >
> > > Here is another option:
> > >
> > > you can get the relative mouse position by using the view's  
> > > method mousePosition, which returns a Point. Should that be a  
> > > normalized Position between 0 and 1 or just pixels?
> >
> > That's good way of solving things.
> >
> > Personally when working with GUIs and drawings I calculate in real  
> > pixels
> > and it would be awkward to map to 0-1 and back into pixels.
> >
> > Perhaps both?
> >
> > (that's what I do in my ParaSpace class)
> >
> > thor
> >
> > _______________________________________________
> > Sc-devel mailing list
> > Sc-devel@xxxxxxxxxxxxxxx
> > http://www.create.ucsb.edu/mailman/listinfo/sc-devel
>
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