search for: triangles3d

...e. By the way, I am not being able to insert unicode text with text3d. rgl 0.82, R 2.8.1, Windows Vista. Any help would be appreciated. Code follows: library(rgl) open3d() coord.1=c(0,100,0) coord.2=c(100,100,0) coord.3=c(100,0,0) coord.4=c(0,0,0) coord.5=c(50,50,70) pyrcolor="red" triangles3d(rbind(coord.1,coord.4,coord.5),color=pyrcolor) triangles3d(rbind(coord.1,coord.2,coord.5),color=pyrcolor) triangles3d(rbind(coord.2,coord.3,coord.5),color=pyrcolor) triangles3d(rbind(coord.3,coord.4,coord.5),color=pyrcolor) quads3d(rbind(coord.1,coord.2,coord.3,coord.4),color=pyrcolor) vertices =...

Dear useRs, I'm trying to simply fill in the area under a curve using RGL. Here' the set up: x <- c(0.75,75.75,150.75,225.75,300.75,375.75,450.75,525.75,600.75,675.75, 0.5,50.5,100.5,150.5,200.5,250.5,300.5,350.5,400.5,450.5, 0.25,25.25,50.25,75.25,100.25,125.25,150.25,175.25,200.25,225.25) y <- c(0.05,4.91,9.78,14.64,19.51,24.38,29.24,34.11,38.97,43.84,

...t;gray") The two extreme points are not plotted (value=1 and value=10). It seems because the half of the matrix have 'NA' and perp3d need planar quadrilateral face. So I decided to use the function triangle3d to integrate these points into the scene. So, for the first point I did : triangles3d(x=c(1,2,2),y=c(1,1,2),z=c(1,5,3)) and it worked But a problem remains because the light movment on this triangle looks independant and I did not find how to solve this issue. How can I prefectly integrate this triangle into the scene? Thank for help [[alternative HTML version deleted]]

Hej, When plotting triangles with rgl.triangles and setting the axes afterwards with decorate3d(aspect=TRUE), the axes get the color used for the last triangle plotted. Example: rgl.triangles(c(1,2,3),c(1,2,5),c(1,3,2),col="#55FF55") decorate3d(aspect=TRUE) Using decorate3d(aspect=TRUE,col="#000000") or decorate3d(aspect=TRUE,color="#000000") does not help,

Dear R-helpers, an rgl-ers in particular, what is the easiest way to plot a section of a plane in 3D, that is given by the xyz coordinates of the outline? Suppose I have a polygon - which I know for sure is a set of coordinates on the same plane. One method I found is to use surf.tri from the geometry package, and then plot the triangles with rgl.triangles. This method is not perfect though,

What is the simplest (namely: minimum number of libraries or conflicts) way to fill a polygon with a pattern? For example, suppose I have (in a graphic file, like a jpeg) the drawing of an "X". Then I fill a polygon (like a triangle) with this pattern, and get something like: X XXX XXXXX XXXXXXX (where the border "X"s could be truncated). I searched the rimage

...39; failed. >> The error most likely occurred in: >> >>> ### * 3dobjects >>> >>> flush(stderr()); flush(stdout()) >>> >>> ### Name: points3d >>> ### Title: add primitive set shape >>> ### Aliases: points3d lines3d segments3d triangles3d quads3d >>> ### Keywords: dynamic >>> >>> ### ** Examples >>> >>> # Show 12 random vertices in various ways. >>> >>> M <- matrix(rnorm(36), 3, 12, dimnames=list(c('x','y','z'), >> +...

Hi all, I am considering writing a 3D visualisation package for R. Purposes: - Visualise 3 dimension data - Manipulate the data or series or any other object with the mouse as in any 3D software (3D Studio Max, Lightwave...) - Eventually display more than just 3D objects. Justification: - It's always interesting to plot data before performing any analysis - Manipulating (rotating,