Re: [ATM] Plop to Calculate Warped Mirror ?

[Mark Holm <mdholm@telerama.com>]

matt wrote:

>I want to have a 1/2" thin mirror , 18" diameter on a Plop designed 54 point
>cell . After optimizing the cell, which I did with acceptable results using
>the Plop graphical interface , I want to be able to calculate somehow the
>mirror surface distortion if force in one and only one of the 54 points
>changes .
>I couldn't figure out how to keep the other points constant or fixed and
>make one point vary , that is the basic problem . Can plop do that, directly
>or using any tricks ?
>
>best regards,
>matt tudor
>
>  
>
That is a pretty tall order.  Plop makes a lot of use of symmetry in 
it's layout definitions.  Defining a single point separately, while not 
necessarily impossible, is not easy.  I was hoping you would be 
interested in a relatively simple layout.  I might have been able to 
figure out the necessary hack for that.  54 points is anything but 
simple though.  Not at all sure I can figure out the trick for that one.

1/2 x 18   " You are a braver man than I, Gunga Din."

Mark Holm
mdholm@telerama.com
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