On 19/07/12 18:36, Erdal Karaca wrote:
> Oh, sorry: X3D is an interchange format for 3D scenes (s [1])...
> X3D's IndexedTriangleSet is a visual component to describe a complex
> figure to be visualized by triangles (s. [2])
>
> I would like to triangulate a pointset (2.5D DEM consisting of xy
> coords and height) using deldir and convert the result back to a
> IndexedTriangelSet to visualize in a X3D browser.
>
> [1] http://en.wikipedia.org/wiki/X3D
> [2]
> http://www.web3d.org/files/specifications/19775-1/V3.2/Part01/components/rendering.html#IndexedTriangleSet
>
> 2012/7/19 Rolf Turner <rolf.tur...@xtra.co.nz
> <mailto:rolf.tur...@xtra.co.nz>>
>
> On 19/07/12 01:13, Erdal Karaca wrote:
>
> Anyone knows how to convert a deldir$delsgs to a X3D
> IndexedTriangleSet?
> Are there already any functions/packages?
>
>
> If I knew WTF a "X3D IndexedTriangleSet" was, I might be able
> to help you. To quote Prof. Ripley, "R is lacking a mind_read()
> function!"
>
This seems to be an X3D question rather than an R question. I can,
and would be willing to, write code to convert output from deldir()
into an R object of any appropriate form. I am not willing to write
code to output an R object to a text file in a format amenable
for use by X3D. Which seems to be what you want.
I don't think that would be too hard to do, for someone familiar
with the X3D protocol --- just use a lot of calls to cat() perhaps
--- but it's not my job and I have other things to do with my time.
cheers,
Rolf Turner
P. S. If you just want code to convert deldir output to a convenient form
of *R object*, let me know clear and precise specifications of what you
want the form to be --- with an *example* of an object of the appropriate
form (use dput()) --- and I'll see what I can do.
R. T.
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