Great! That works well. Thanks.
--- In [email protected], "Gordon Smith" <[EMAIL PROTECTED]> wrote:
>
> > I know that in previous version of the Flash player and actionscript,
> the draw API would draw directly on the screen
>
> Actually, the Flash Player has never drawn directly on the screen. The
> vector graphics of each Sprite get rasterized into pixels (not
> immediately when you call a drawing API like lineTo() but sometime later
> when the current "frame" is rendered), the pixels from the various
> Sprites are composited together offscreen, and then the resulting
> composite pixels are blitted to the screen.
>
> If you are drawwing into a scrollable Canvas, you probably need to
> adjust your coordinates by horizontalScrollPosition and
> verticalScrollPosition. But I haven't tried it to make sure this fixes
> the problem.
>
> - Gordon
>
> ________________________________
>
> From: [email protected] [mailto:[EMAIL PROTECTED] On
> Behalf Of Merrill, Jason
> Sent: Wednesday, March 07, 2007 11:12 AM
> To: [email protected]
> Subject: RE: [flexcoders] Drawing in a Scrollable Canvas
>
>
>
> I'm new to Flash 9/Flex AS3, but I know that in previous version of the
> Flash player and actionscript, the draw API would draw directly on the
> screen - in the indicated movieclip/sprite, so you would likely need to
> instead draw into a sprite container and move than with the panels
> instead of drawing directly on the canvas. My best guess anyway.
>
>
> Jason Merrill
> Bank of America
> Global Technology & Operations, Learning & Leadership Development
> eTools & Multimedia Team
>
>
>
>
>
> ________________________________
>
> From: [email protected]
> [mailto:[EMAIL PROTECTED] On Behalf Of Mike Cantrell
> Sent: Wednesday, March 07, 2007 2:07 PM
> To: [email protected]
> Subject: [flexcoders] Drawing in a Scrollable Canvas
>
>
>
>
> I'm attempting to make an Organization Chart component for Flex.
> In short, I have a canvas which contains child panels These child panels
> represent a position in the organization. I'm drawing lines (on the
> canvas) between the panels to represent their relationship to each
> other.
>
> Everything works great until I scroll the canvas. The lines are
> not drawn in relationship to their position in the canvas, but stay were
> they are in relation to the screen. For example, if I scroll down, the
> panels move up as they should, but the lines stay where they are which
> breaks the "connections". I'd like to have them scroll upwards like the
> panels do.
>
> Due to my lack of experience with flash (and any graphics
> programming for that matter), I may be ramming a square peg in a round
> hole. Here's the panel code which recursively draws its lines to its
> child panels:
>
> public function
> drawLinesToChildren(canvas:HierarchyCanvas):void {
> var startPoint:Point = new Point(x + (width /
> 2), y + height); // adjust to bottom/center of the parent panel
> for (var i:int = 0; i < children.length; i++) {
>
> var child:HierarchyPanel = children[i];
> var endPoint:Point = new Point(child.x,
> child.y);
> &! nbsp; endPoint = new Point(endPoint.x +
> (child.width / 2), endPoint.y); // adjust top/center of the child panel
> canvas.graphics.moveTo(startPoint.x,
> startPoint.y);
> canvas.graphics.lineTo(endPoint.x,
> endPoint.y);
> child.drawLinesToChildren(canvas);
> }
> }
>
> If anyone could offer any suggestions, I'd be very grateful.
>
