Sounds like the OFX version uses normalized pixel position instead of
absolute ones.
You would need to to divide your image resolution by the tracked position
to get the normalized coordinates

Am 21.09.2016 09:10 schrieb "adam jones" <adam....@mac.com>:

> Hey hey
>
> What I am getting at is that say I have track a point from x 100 to x 600
> and y 35 to y 450 in nuke
>
> then I take this data to AE and plug it in to particulars emtier x and y
> all tracks fine
>
> but should I take the same data and plug it in the OFX particular x and y
> emiter the emitter is way way way way out of frame
>
> to keep it in frame you need to use values like 0 to maybe .2 before it
> out of frame.
>
> now I am not using a camera I only wish to use 2D point to drive the
> particles as you can very simply in AE.
>
> regards
> -adam
>
> On Sep 21, 2016, at 04:55 PM, Frank Rueter|OHUfx <fr...@ohufx.com> wrote:
>
> Nuke's origin is bottom left though
>
> On 09/21/2016 06:40 PM, Daniel Hartlehnert wrote:
>
> AE coordinate system has its origin in the bottom left of the screen. Nuke
> in the top left.
> Or in pseudo code: AE.y = height - Nuke.y
>
> Daniel
>
> Am 21.09.2016 um 08:35 schrieb Ron Ganbar <ron...@gmail.com>:
> I would assume the default state of Particular for AE and Particular for
> Nuke is not the same. Sounds to me like the z-position is set differently,
> or the world transformation is set differently.
> Unfortunately, I don't have access to Particular for Nuke.
>
>
>
> Ron Ganbar
> email: ron...@gmail.com
> tel: +44 (0)7968 007 309 [UK]
>       +972 (0)54 255 9765 [Israel]
> url: http://ronganbar.wordpress.com/
>
> On Tue, Sep 20, 2016 at 11:51 PM, adam jones <adam....@mac.com> wrote:
>
>> Hey guys
>>
>> I am wanting to use the particular node (not the 3D particular gizmo) and
>> attache 2D track data to the emitter.
>>
>> Problem I am having is that the numbers / data dont seem to dont seem to
>> match at all (nuke x y to particular x y)
>>
>> It works all fine in the AE version tracked x y data from nuke to
>> particular.
>>
>> Is there an expression that converts this data over.
>>
>> major pain
>>
>> regards
>> -adam
>>
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>
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