问带针织的rgl动画图形

EN

\documentclass{article}

<< label = setup, include = FALSE>>=
opts_chunk$set(fig.path = 'figure/',  cache = FALSE, dev = "pdf",  fig.align = 'center', fig.show = 'hold', fig.width = 3, fig.height = 3,  echo = TRUE, warning = FALSE, message = FALSE, size = 'footnotesize', comment=NA, results='hold')

knit_hooks$set(par = function(before, options, envir){
if (before && options$fig.show!='none')
 par(mar = c(4, 4, 0.1, 0.1), cex.lab = 0.95, cex.axis = 0.9, mgp = c(2, 0.7, 0), tcl = -0.3)
}
)
knit_hooks$set(rgl = function(before, options, envir) {
  if (!before) {
    ## after a chunk has been evaluated
    if (rgl.cur() == 0) return()  # no active device
    name = paste(options$fig.path, options$label, sep = '')
    rgl.snapshot(paste(name, '.png', sep = ''), fmt = 'png')
    return(paste('\\includegraphics{', name, '}\n', sep = ''))
  }
}
)

options(replace.assign = TRUE, width = 60)
@ 
\begin{document}

<< label=packages >>=
library(car)
@
<< label=rgl1, rgl=TRUE, fig.show='animate' >>=
scatter3d(prestige ~ income + education, data=Duncan)
@

\end{document}

Warning messages:
1: In rgl.snapshot(paste(name, ".png", sep = ""), fmt = "png") :
  RGL: Pixmap save: unable to open file 'D:\A B\C D UAF\Test\knitr\rglAnimation\figure\rgl1.png' for writing
2: In rgl.snapshot(paste(name, ".png", sep = ""), fmt = "png") :
  snapshot failed
3: running command '"C:\PROGRA~2\MIKTEX~1.9\miktex\bin\x64\texi2dvi.exe" --quiet --pdf "rglAnimation.tex" --max-iterations=20 -I "C:/PROGRA~1/R/R-31~1.1/share/texmf/tex/latex" -I "C:/PROGRA~1/R/R-31~1.1/share/texmf/bibtex/bst"' had status 1 

R version 3.1.1 (2014-07-10)
Platform: x86_64-w64-mingw32/x64 (64-bit)

locale:
[1] LC_COLLATE=English_United States.1252 
[2] LC_CTYPE=English_United States.1252   
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C                          
[5] LC_TIME=English_United States.1252    

attached base packages:
[1] tools     stats     graphics  grDevices utils     datasets  methods  
[8] base     

other attached packages:
[1] mgcv_1.8-2    nlme_3.1-117  rgl_0.93.1098 car_2.0-21    knitr_1.6.15 

loaded via a namespace (and not attached):
[1] evaluate_0.5.5  formatR_1.0     grid_3.1.1      highr_0.3      
[5] lattice_0.20-29 MASS_7.3-34     Matrix_1.1-4    nnet_7.3-8     
[9] stringr_0.6.2