Displaying 5 results from an estimated 5 matches for "qmesh".
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2012 Mar 09
2
rgl: cylinder3d() with elliptical cross-section
For a paper dealing with generalized ellipsoids, I want to illustrate in
3D an ellipsoid that is unbounded
in one dimension, having the shape of an infinite cylinder along, say,
z, but whose cross-section in (x,y)
is an ellipse, say, given by the 2x2 matrix cov(x,y).
I've looked at rgl:::cylinder3d, but don't see any way to make it
accomplish this. Does anyone have
any ideas?
thx,
2007 Feb 22
2
rgl update: please test!
...script from Laszlo Kajan and Brian Ripley:
should now be much more portable
- removed deprecated OSX font setting calls
- texture properties are now returned by material3d()
- allowed normals and texture coordinates to be specified in
triangles and quads
- normals may be specified in qmesh objects, but (at present)
subdivide removes them
- material3d() now preserves the values of unspecified parameters (as
documented, but not previously functioning)
- open3d() now resets all material properties to the defaults.
Could people who have been having problems with rgl (or just mak...
2007 Apr 04
1
compile errors with rgl-0.70.570 on FreeBSD
...> should
> now be much more portable
> - removed deprecated OSX font setting calls
> - texture properties are now returned by material3d()
> - allowed normals and texture coordinates to be specified in
> triangles and quads
> - normals may be specified in qmesh objects, but (at present)
> subdivide removes them
> - material3d() now preserves the values of unspecified parameters (as
> documented,
> but not previously functioning)
> - clear3d() can now reset material properties to the defaults, and
> open3d() does thi...
2006 May 23
1
shapes in rgl
Does anyone have a way of producing solid shapes other than spheres in
rgl? I am using rgl to produce a simple visualisation of a forest model
results using "lollipops". Its just a bit of fun, but as many of the
trees are pines I would like to depict their crowns as cones. If there
is a solution I need it to work under windows.
Here is the example.
library(rgl)
library(misc3d)
2007 Apr 04
1
rgl.postscript generating pdf: floating xlab, font size, transparency
Hello,
I very much enjoy rgl! But when converting the screen output to pdf
using rgl.postscript I have encountered three problems:
(1) I don't seem to have control over font sizes and point sizes (of
added points) in the pdf output. I tried cex from "plot" but that
does not have an effect. Initially I got some plots where fonts and
especially points were far too small. But now