Thank you!
Exactly what I was looking for, wonder why this expression didn't appear
in any of my searching. Looks like it is working
-Adam
On 02/28/2013 11:51 AM, Nathan Rusch wrote:
I would just use the good-old distance formula and do it all in
expression syntax. It's verbose, but doing it in Python will likely be
even more so, and this will run a hell of a lot faster:
sqrt(pow(Cam.translate.x-Axis.translate.x, 2) +
pow(Cam.translate.y-Axis.translate.y, 2) +
pow(Cam.translate.z-Axis.translate.z, 2))
-Nathan
*From:* Adam Hazard <mailto:[email protected]>
*Sent:* Thursday, February 28, 2013 11:42 AM
*To:* Nuke user discussion <mailto:[email protected]>
*Subject:* [Nuke-users] calculating distance between axis and camera
in anexpression
Hi,
I am trying to calculate the distance between an axis and a 3D camera
in an expression. But I have several problems and not sure where to begin.
I was using this as a guideline from nukepedia, but planning to swap
in Vector3
pointA = nuke.math.Vector2(50,100)
pointB = nuke.math.Vector2(150,175)
distance = pointA.distanceBetween(pointB)
print distance
But I am guessing I need to call python in the expression? But none of
the python syntax worked either.
Also how would I assign an animated camera as a vector variable
...Vector3(parent.Camera.translate.x, parent.Camera.translate.y,.....etc?
Or am I just totally off in the wrong direction?
hopefully this is possible
Thanks.
Adam
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