[pstricks] pst-optexp: Custom component with multiple reflections?

[Lars O. Grobe]

Dear Herbert,

the intersection routines of "pure" pst are certainly a powerful option, 
and I will consider this. My hope was a more generic and flexible 
approach to once define a set of (sometimes complicated, exported from 
CAD) reflector geometries which I coud expose to different sets of 
incident rays, varying e.g. spacing between reflectors, inclination 
angle, direction of incident rays, which is what brought me to pst-optexp.

Thank you for the great example on using the intersection functions, 
this is a really comprehensive block of code that even a pst-beginner 
like me is able to grasp.

Best regards,
Lars.
>
>     before I give up on this - is this case of ray-tracing in Tex/PS just
>     too much, or did I simply miss an important detail in my example? I am
>     ready to draw rays by hand, but feel sorry for having been close to such
>     a powerful tool...
>
> If you need only one or two lines then use pst-eucl:
>
>
> \documentclass{article}
> \usepackage{pst-eucl}
> \usepackage{auto-pst-pdf}
>
> \begin{document}
> 	
> \begin{pspicture}[showgrid=true](-4,-5)(4,0)
> \psset{PointSymbol=none,PointName=none}
> % Comment the above line to see all points
> \pstGeonode(0,0){O}(0,-4){A1}(0,-5){A2}(-3,-1.5){B1}(-2.5,-3){B2}
> \psarc(O){4}{225}{315}
> \psarc(O){5}{225}{315}
> \pstInterLC{B1}{B2}{O}{A1}{M1}{M2}
> \psline[linecolor=red]{->}(B1)(M2)
> \pstOrtSym{O}{M2}{M1}[M1']
> \psline[linecolor=red]{->}(M2)(M1')
> \pstOrtSym{O}{M1'}{M2}[M1'']
> \pcline[linecolor=red,nodesepB=15mm]{->}(M1')(M1'')
> \end{pspicture}	
> 	
> \end{document}
>
> Herbert

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