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From Om <bigosma...@gmail.com>
Subject Re: Flex Charts using Starling
Date Sun, 04 Nov 2012 12:16:34 GMT
On Tue, Oct 23, 2012 at 12:12 PM, Alex Harui <aharui@adobe.com> wrote:

> Also, Stage3D isn't in the display list, so other visuals can't be put
> behind it.
>
>
I ran into this issue pretty quickly.  Right now my frame of mind is to
create a component with backgroundAlpha set to 0.  There could be a way to
selectively mask out areas on a flex application where we want to show
Stage3D/Starling objects.  Long term, we might have to fiddle with
SystemManager to handle DisplayObjects and Stage3D objects seamlessly so
that they dont overlap.  I have no idea if this is possible or not.  Any
thoughts?


And I think you have to handle interaction differently.


I havent gotten to adding interactions.  I guess you mean tooltips,
datatips, etc.  If not, can you please elaborate?


> On 10/23/12 12:07 PM, "Nicholas Kwiatkowski" <nicholas@spoon.as> wrote:
>
> > Only thing I can think of off the top of my head is that Stage3D support
> > for mobile is still spotty at best.  This would also require us to
> target a
> > newer swfversion, which may have other repercussions I'm not thinking of.
> >
>

Yup, I had to bump up the swf-version to 13 to see Stage3D content.  What
is the Flex 4.8 at?



>  > -Nick
> >
>


On Tue, Oct 23, 2012 at 12:09 PM, Stefan Horochovec <
stefan.horochovec@gmail.com> wrote:

> Om,
>
> I'm analyzing the FeathersUI a few days and one of the first ideas I had on
> was just supplement it with graphics.
>


FeathersUI looks pretty impressive, but right now hooking it up inside a
Flex app is not too straightforward.  But I am continuing to to study this
framework because it looks very well done.

The biggest problem with FeathersUI/Starling is that everything is bitmap
based and you can, at best, draw Quads on the screen.  Flex components,
especially Charts require a very good set of drawing API which Starling
currently lacks.

I spent some time writing some low level drawing API based on this tutorial
[1]  But luckily, I quickly discovered
the Starling-Extension-Graphics library that mirrors flash.display.Graphics
to quite an extent.  It is available here [2]  I am currently using this
extension to try and draw some simple Chart types.  After that I will try
to hook them up with dataproviders that can be passed through the normal
Flex lifecycle.


>
> However, right now, I believe that this implementation would be only a
> proof of concept about using FeathersUI to "complement" the FlexSDK to
> these changes in AVMNext.
>


Note that my goal is to make Starling based charts in Flex in the current
virtual machine using an already shipped version of the Flash Player.  We
have no idea what AVMNext is going to look like.  But I agree that this
could be a good start if someone were willing to go that route in future.


>
> But I'm willing to collaborate in order to make this tests on Stage3D for
> developing comercial apps. I also believe that this the moment to propose
> new visual layouts for our charts.



I would love your involvement.  I am planning to check in my experiments
into my whiteboard space here [3] soon

Thanks,
Om

[1] http://wiki.starling-framework.org/manual/custom_display_objects
[2] https://github.com/unwrong/Starling-Extension-Graphics
[3] https://svn.apache.org/repos/asf/incubator/flex/whiteboard/bigosmallm

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