Grasshopper

algorithmic modeling for Rhino

find mirror plane of reflection

Hello !!

I am currently trying to play with reflections.
It is rather easy to get the reflection of a vector knowing its mirror position and orientation. It can be used using 'mirror' for instance.

But I have difficulties to get the 3d re-orientation of a plane (mirror) knowing both its incident and consequent reflected vector.

I can only orient the mirror for two dimensions at a time. The orientation in one plane changes adjustments made in another plane.

It is basic linear algebra (matrixes) or I should probably use quaternions. I do not know what to use and how to do it.

If someone has an idea where to start I would be very happy. Very happy ;)

Views: 2027

Replies to This Discussion

Permalink Reply by Erick Vásquez on November 5, 2017 at 12:11am

Hi Olivier, see the attached, by using the mean vector to define the plane.

Attachments:
Permalink Reply by Markku on November 5, 2017 at 12:22am

How about this

Attachments:
Permalink Reply by Olivier Pasquet on November 5, 2017 at 10:24am

Ohh ! So simple... Thank you very much !

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