Heya gents, thanks for working so hard on that solution Mango, I'll
have a good look through it this afternoon. As you mentioned above,
after a morning of digging through the source I managed to figure out
that the contents of the session.container object report their bounds
as being flush with their edges, not the entire view. I'll post the
code here for anyone who should come looking:
Here's a way to use the Session object within your View3D to find the
bounds of an object you've drawn to the screen with view.render().
This example is built for a single object, in my case an imported OBJ
file. The coordinates returned are relative to (this), the movie
within which the view object is contained.
// view has been defined previously, it's our View3D object.
var sessionContainer:DisplayObjectContainer =
view.session.getContainer(view) as DisplayObjectContainer;
var drawnObject = sessionContainer.getChildAt(0);
var viewBounds = drawnObject.getRect(this);
trace("vb: " + viewBounds.left + "," + viewBounds.top + "/" +
viewBounds.right + "," +viewBounds.bottom);
The next challenge is to find a way to wait until the view has been
successfully rendered. Right now I'm using onEnterframe and I think
it's lagging a frame or two behind.
On Nov 12, 10:16 am, Mango <[EMAIL PROTECTED]> wrote:
> bakedbeing has also posted two great examples that use
> session.getContainer() to find the bounds of a single object.
>
> On Nov 11, 8:33 am, "Peter Kapelyan" <[EMAIL PROTECTED]> wrote:
>
> > That is really great!
>
> > Can you add this example here please, I think it will help others:
>
> >http://away3d.com/examples.php?add=new
>
> > Thank you for taking your time to help out, and for your example!
>
> > -Pete
>
> > On Tue, Nov 11, 2008 at 1:49 AM, Mango <[EMAIL PROTECTED]> wrote:
>
> > > Rob and Peter both have the right idea. Unfortunately, when you add
> > > the view sprite to the parent, it inherits the parent's dimensions.
> > > Solution? Create two identical scenes, but only add one to the parent
> > > display object.
>
> > > Example:
> > >http://www.mediafire.com/?sharekey=c8a7966316f99e07d2db6fb9a8902bda
> > > (Sorry about the hosting link. My site is not up currently, so I
> > > cannot host it properly. Also, the file upload on this site doesn't
> > > appear to load swfs. Feel free to rehost.)
>
> > > AS3:
> > > public class BoundTest extends Sprite {
> > > private var view:View3D;
> > > private var view2:View3D;
> > > private var cube:Cube;
> > > private var cube2:Cube;
> > > private var rect:Rectangle;
>
> > > public function BoundTest() {
> > > init();
> > > }
>
> > > private function init():void {
> > > view = new View3D({x:200, y:200, clip:new RectangleClipping(-190,
> > > -150, 190, 150)});
> > > view2 = new View3D({x:200, y:200, clip:new RectangleClipping(-190,
> > > -150, 190, 150)});
> > > cube = new Cube();
> > > cube2 = new Cube();
> > > view.scene.addChild(cube);
> > > view2.scene.addChild(cube2);
>
> > > addChild(view);
> > > addEventListener(Event.ENTER_FRAME, onEnterFrame);
> > > }
>
> > > private function onEnterFrame(event:Event):void {
> > > cube.rotationX += 5;
> > > cube.rotationY += 5;
> > > cube.rotationZ += 5;
> > > cube2.rotationX += 5;
> > > cube2.rotationY += 5;
> > > cube2.rotationZ += 5;
>
> > > view2.render();
> > > rect = view2.getBounds(this);
> > > view.render();
>
> > > trace(rect.width + ", " + rect.height);
> > > }
> > > }// of class
>
> > > On Nov 10, 6:46 pm, bakedbeing <[EMAIL PROTECTED]> wrote:
> > > > Hey thanks for the tip Rob. I've tried using getBounds on the view,
> > > > but it's giving me a bounding rectangle the size of the whole canvas.
> > > > Do you know what containers I could look at inside the object to get
> > > > something that matches the outline of our object?
>
> > > > On Nov 8, 12:02 am, "Rob Bateman" <[EMAIL PROTECTED]> wrote:
>
> > > > > Hey bakedbeing
>
> > > > > have you tried using the bounding radius property yet? you can access
> > > the
> > > > > containing radius of any object through the property boundingRadius.
> > > This
> > > > > doesn't give you a screen bounding box, but you could use a
> > > > > perspective
> > > > > calulation on the radius to get a view value and work from there.
>
> > > > > another quick hack that may be simpler to execute is just taking the
> > > > > rectangle returned from getBounds() on the view! this will give you a
> > > > > Rectangle instance that you can extract all relevant data relating to
> > > the
> > > > > bounds of the object inside.
>
> > > > > atb
>
> > > > > Rob
>
> > > > > On Fri, Nov 7, 2008 at 5:42 AM, bakedbeing <[EMAIL PROTECTED]
> > > >wrote:
>
> > > > > > Heya Mango, we were thinking the same here, but it doesn't look like
> > > > > > the actionscript API for google maps includes streetview yet, for
> > > that
> > > > > > you need to be using a browser and javascript as far as I can tell
> > > :(
>
> > > > > > On Nov 7, 3:21 pm, Mango <[EMAIL PROTECTED]> wrote:
> > > > > > > Sorry, here's the link:
> > > > > >http://code.google.com/apis/maps/documentation/flash/
>
> > > > > > > On Nov 6, 10:15 pm, Mango <[EMAIL PROTECTED]> wrote:
>
> > > > > > > > I'm not sure if this is easier or more useful, but you can use
> > > the
> > > > > > > > Google Maps API for Flash, add the object to a sprite, and set
> > > the
> > > > > > > > sprite to the background of the view:
>
> > > > > > > > var view:View3D = new View3D(...);
> > > > > > > > var streetView:Sprite = //google street view API
> > > > > > > > view.background = streetView;
>
> > > > > > > > In this way, transparent space will not interfere with mouse
> > > clicks as
> > > > > > > > long as you're not using something that fills the entire view
> > > (fog
> > > > > > > > filter, etc).
>
> > > > > > > > Quote:
> > > > > > > > "The Google Maps API now provides a Street View service for
> > > obtaining
> > > > > > > > and manipulating the imagery used in Google Maps Street View!"
>
> > > > > > > > I have no experience with street view or google maps, so this
> > > info may
> > > > > > > > be completely irrevalant or useless. :P
>
> > > > > > > > On Nov 6, 9:24 pm, bakedbeing <[EMAIL PROTECTED]> wrote:
>
> > > > > > > > > Heya Mango, thanks for the response. Yeah I was thinking
> > > there's ways
> > > > > > > > > to do it using Matrix math and all the values in the render
> > > scene,
> > > > > > but
> > > > > > > > > it's well beyond me to do, and I was hoping that the data
> > > > > > > > > would
> > > be
> > > > > > > > > somewhere in the 3D pipeline and just need to be fished out.
>
> > > > > > > > > I'm overlaying a 3D object on Google Street View, and it's
> > > moving
> > > > > > > > > pretty well with the maps, but if you completely cover the
> > > streetview
> > > > > > > > > with another div with flash on it, you can't click and drag on
> > > the
> > > > > > > > > streetview below. So I need to calculate my bottle's position,
> > > render
> > > > > > > > > it, then move my view and move/crop my swf so it's only the
> > > size of
> > > > > > > > > the drawn 3D object :)
>
> > > > > > > > > On Nov 7, 2:07 pm, Mango <[EMAIL PROTECTED]> wrote:
>
> > > > > > > > > > Hello!
>
> > > > > > > > > > The data in these containers doesn't live long enough to
> > > access. I
> > > > > > > > > > don't think you can retrieve the properties of the objects
> > > without
> > > > > > > > > > inserting code into the Away3D classes (and the height and
> > > width
> > > > > > > > > > default to swf height and width anyway).
>
> > > > > > > > > > Object3D provides objectWidth, objectHeight, and objectDepth
> > > > > > > > > > properties, and from these you can calculate with the
> > > projection
> > > > > > the
> > > > > > > > > > width and height of the drawn graphic. Unfortunately, I do
> > > not have
> > > > > > > > > > the time (or knowledge, probably) to show you how to do
> > > > > > > > > > this.
>
> > > > > > > > > > I'm curious as to why you need these values, though. To what
> > > end
> > > > > > does
> > > > > > > > > > resizing the swf serve? :)
>
> > > > > > > > > > On Nov 6, 5:44 pm, bakedbeing <[EMAIL PROTECTED]>
> > > wrote:
>
> > > > > > > > > > > Is there a way to access the graphics container in the
> > > view3D or
> > > > > > in
> > > > > > > > > > > the session object? Something that will give me access to
> > > the
> > > > > > sprite
> > > > > > > > > > > created for each object?
>
> > > > > > > > > > > On Nov 7, 10:16 am, bakedbeing <[EMAIL PROTECTED]>
> > > > > > wrote:
>
> > > > > > > > > > > > Heya again lads!
>
> > > > > > > > > > > > Is there a direct way to find a 2D bounding box for an
> > > object
> > > > > > as
> > > > > > > > > > > > finally drawn to the view?
>
> > > > > > > > > > > > I want to find the top left and bottom right of the
> > > object, so
> > > > > > I can
> > > > > > > > > > > > crop my swf to just the edges of the object (move the
> > > view
> > > > > > object,
> > > > > > > > > > > > resize the swf).
>
> > > > > > > > > > > > I couldn't find anything in the object3D properties or
> > > > > > > > > > > > in
> > > > > > view3D.
>
> > > > > > > > > > > > I was thinking a long way would be to draw the whole
> > > > > > > > > > > > view
> > > to a
> > > > > > > > > > > > bitmapData object with BitmapRenderSession and trawl
> > > > > > > > > > > > that
> > > for
> > > > > > pixel
> > > > > > > > > > > > data, but I'm hoping there's something easier? A sprite
> > > object
> > > > > > inside
> > > > > > > > > > > > Projector who's x,y, height and width (in 2D) I can
> > > grab??
>
> > > > > > > > > > > > Thanks!
>
> > > > > --
> > > > > Rob Bateman
> > > > > Flash Development & Consultancy
>
> > > > > [EMAIL PROTECTED]
>
> > --
> > ___________________
>
> > Actionscript 3.0 Flash 3D Graphics Engine
>
> > HTTP://AWAY3D.COM
