Re: [R] help with cube3d cube size

From: Mark Kimpel <mwkimpel_at_gmail.com>
Date: Wed, 25 Jun 2008 11:32:12 -0400

Ben and Duncan,

Thanks for your helpful suggestions. I"m having some difficulty navigating this really good package using my normal learning techniques. When I do 'help(package = "rgl") it seems only a very small subset of functions available show up. Perusing the rgl.pdf downloaded from CRAN demonstrates the same lack of documentation. There is no vignette. In addition, I have found at least one other package with 3d functions (emdbook::curve3d()).

What is the best resource for learning about all the foo3d() and lower level functionality that rgl and its dependents provide? I saw a book at B&N just last week on openGL. Would that be helpful?

Mark

On Tue, Jun 24, 2008 at 10:54 PM, Ben Bolker <bolker_at_ufl.edu> wrote:
> Mark Kimpel <mwkimpel <at> gmail.com> writes:
>
>>
>> I'm using the command below on an open3d() object to create a shaded
>> cube. Changes to myScalingFactor do not effect changes in the size of
>> the cube. What is the correct approach? Mark
>
>
>
> how about scale3d() ?
>
> shade3d(translate3d(scale3d(cube3d(),5,5,5),-6,1,-1),col="blue", alpha = 0.2)
> shade3d(translate3d(cube3d(),-6,1,-1),col="green", alpha = 0.2)
> shade3d(translate3d(scale3d(cube3d(),10,10,10),-6,1,-1),col="red", alpha = 0.2)
>
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-- 
Mark W. Kimpel MD ** Neuroinformatics ** Dept. of Psychiatry
Indiana University School of Medicine

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Received on Wed 25 Jun 2008 - 15:43:18 GMT

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