Re: [cinjug-users] tracing a path

[Michael Schneider <michaelschneider@xxxxxxxx>]

Path seems to be a good solution,  Another option is to store current 
equations, and replay on repaint.




James Carman wrote:

> So, you need to remember the points (or the path).  That's why I suggested
> the GeneralPath solution.
>
> -----Original Message-----
> From: Jason Kretzer [mailto:jrkretzer@xxxxxxxxx] 
> Sent: Tuesday, March 15, 2005 10:41 AM
> To: Chris McMahan; Amol Deshmukh
> Cc: 'Jason Kretzer'; users@xxxxxxxxxx
> Subject: RE: [cinjug-users] tracing a path
>
>
> I agree, I have tested this out and it works great!  I
> just need to put some type of focus listener on the
> frame. When it loses focus via being covered by
> another window or minimization, the previously painted
> points disappear.  It then continues drawing and
> leaving a line where it left off.
>
> Thanks for the great help!
>
> -Jason
>
>
> --- Chris McMahan <cmcmahan@xxxxxxx> wrote:
>  
>
> > That's a very nice solution!
> >
> > - Chris
> >
> > Amol Deshmukh writes:
> >    
> >
> > > > > -----Original Message-----
> > > > > From: Jason Kretzer
> > > > >          
> > [mailto:jrkretzer@xxxxxxxxx]
> >    
> >
> > > > > Sent: Tuesday, March 15, 2005 9:44 AM
> > > > > To: users@xxxxxxxxxx
> > > > > Subject: Re: [cinjug-users] tracing a path
> > > > > ...
> > > > > the points to stay put?  After I draw a point
> > > > >          
> > and
> >    
> >
> > > > > call
> > > > > repaint on the JComponent toshow that point,
> > > > >          
> > the
> >    
> >
> > > > > point
> > > > > that I drew just before that disappears.
> > > > > ...
> > > > >          
> > > you may want to consider using
> > >
> > >    repaint(int x,int y,int width,int height)
> > >
> > > instead of repaint(). Then redraw the set of points
> > >      
> > in only
> >    
> >
> > > that portion of rectangle. So every time the ball
> > >      
> > moves,
> >    
> >
> > > you only update a small rectanlgular portion of the
> > >      
> > >
> > > Component instead of redrawing all the points.
> > >
> > >
> > > More help at :
> > >
> > >      
> > http://java.sun.com/products/jfc/tsc/articles/painting/index.html
> >    
> >
> > > HTH,
> > > ~ amol
> > >      
> > --
> >    ================================
> >    Chris McMahan | cmcmahan@xxxxxxx
> >    ================================
> >
> >
> >    
>
>
> 		
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