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Q. regarding shadowed 3D plots

4 messages · Amund Tveit, Paul Murrell, Wolfgang Viechtbauer +1 more

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Hi,

Is the code for creating the screenshot plots found at:
1. http://www.r-project.org/screenshots/persp-surface.jpg
2. http://www.r-project.org/screenshots/volcano-persp.jpg
available?

How is the shadow added to the 3D surfaces?

Thanks in advance for any help.

B.R,
Amund
http://www.idi.ntnu.no/~amundt/

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#
Hi
Amund Tveit wrote:
See help(persp), in particular the ltheta and lphi arguments.  
There are a couple of examples of their use in example(persp).

Paul
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See: help(persp)

The examples at the end provide the code. The shadow effect is added by
specifying ltheta, lphi, and shade.

--
Wolfgang Viechtbauer

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Paul> Hi
Paul> Amund Tveit wrote:
>> 
    >> Hi,
    >> 
    >> Is the code for creating the screenshot plots found at:
    >> 1. http://www.r-project.org/screenshots/persp-surface.jpg
    >> 2. http://www.r-project.org/screenshots/volcano-persp.jpg
    >> available?
    >> 
    >> How is the shadow added to the 3D surfaces?


    Paul> See help(persp), in particular the ltheta and lphi arguments.  
    Paul> There are a couple of examples of their use in example(persp).

and even a bit more in  
    demo(persp)   {which has been new in R 1.6.0}

Martin
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