Re: [flexcoders] Re: Centering an image over a chart

Wed, 26 Jul 2006 07:41:07 -0700

yep, so you take the dataRegion rectangle, find the middle of it, and hey presto, all sorted - something like this:

        override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void{
            super.updateDisplayList(unscaledWidth,unscaledHeight);
            var rect:Rectangle = dataRegion;
            myImage.x = rect.left + (rect.width-myImage.width)/2
            myImage.y = rect.top+ (rect.height-myImage.height)/2
        }

showing / hiding you can do when the data changes...


On 7/26/06, parksch2 <[EMAIL PROTECTED]> wrote:

Hey,

Thanks for the response. It's an image that basically says "No data
for this chart...." so it won't have to scale or anything. I'm just
trying to place it right in the middle of the chart. It doesn't have
to be perfect, just relatively in the center of where the lines are
drawn in the chart.

Thanks!



--- In flexcoders@yahoogroups.com, "Paul BH" <[EMAIL PROTECTED]> wrote:
>
> is this over the entire chart, or just the area where the lines are
drawn
> (ie not including axes...)
>
> if its the latter, there is a protected dataRegion getter that will
give you
> the size of the area you want to fill with your image...
>
> On 7/26/06, parksch2 <[EMAIL PROTECTED]> wrote:
> >
> > Hi all,
> >
> > I have a question as to the best way to center an image over a
chart.
> > Basically I'd like to place an image over a chart when no data is
> > returned. I can't use absolute positioning because of the
different
> > resolution possibilities. Further, we have a zoom component that
makes
> > the chart full screen and the image would have to re-center
itself. Can
> > anyone point me in the right direction?
> >
> > Thanks in advance!
> >
> >
> >
>


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