带针织的rgl动画图形
带针织的rgl动画图形
提问于 2014-08-08 19:50:27
我想通过knitr在我的.Rnw文档中包含动画rgl图形。这是我的MWE：
\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}我在编织的文档中得不到图表。
已更新
我仍然不能让它工作，并得到以下警告：
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 我的sessionInfo()是
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 编辑的
在opts_chunk$set中将fig.path = 'figure/'更改为fig.path = ''将编译具有png图形但没有任何动画的文档。如何使用fig.path = 'figure/'获取动画rgl图形。
回答 1
Stack Overflow用户
回答已采纳
发布于 2015-06-30 06:06:27
我有一个基于您的示例，可以在RStudio 0.99.441中使用Windows8.1中的knitr工作。
这将生成40帧的绘图动画。它使用内置的hook_plot_custom来包含通过动画3d绘图手动生成的绘图。动画的代码基于play3d和movie3d的帮助和源代码中的代码。movied3d本身不能使用，因为它的文件命名太不灵活。
我已经把这个放到了https://github.com/NikNakk/testAnimateRgl/的github上。pdf网址为https://github.com/NikNakk/testAnimateRgl/raw/master/rglKnitr.pdf。
\documentclass{article}
\usepackage{animate}
<< label = setup, include = FALSE>>=
library("rgl")
library("car")
library("knitr")
knit_hooks$set(rgl = hook_plot_custom)
@
\begin{document}
<< label=rgl1, rgl=TRUE, fig.show='animate', fig.width=5, fig.height=5, out.width='.6\\linewidth', dev='png', fig.num = 40, interval=0.1>>=
scatter3d(prestige ~ income + education, data=Duncan)
M <- par3d("userMatrix")
par3d(windowRect = 100 + opts_current$get("dpi") *
c(0, 0, opts_current$get("fig.width"),
opts_current$get("fig.height")))
spinFunc <- par3dinterp(userMatrix=list(M,
rotate3d(M, pi/2, 1, 0, 0),
rotate3d(M, pi/2, 0, 1, 0)))
for(i in 1:40) {
par3d(spinFunc(i / 10))
Sys.sleep(0.05)
rgl.snapshot(fig_path(".png", number = i), fmt = "png")
}
@
\end{document}编辑:新版本
下面是另一个版本，它演示了如何使用自定义块选项为相当简单的spin3d设置参数。请注意，在此版本中，块只有一行( scatter3d图)。spin3d.axis用于将轴参数设置为spin3d；spin3d.rpm用于设置rpm参数。使用标准的fig.num和interval参数设置图像的数量和图像之间的间隔。
\documentclass{article}
\usepackage{animate}
<< label = setup, include = FALSE>>=
library("rgl")
library("car")
library("knitr")
hook_rgl_spin <- function(before, options, envir) {
if (!before) {
par3d(windowRect = 100 + options$dpi *
c(0, 0, options$fig.width,
options$fig.height))
if (!is.null(options$spin3d.axis)) {
spin3d.axis <- options$spin3d.axis
} else {
spin3d.axis <- c(0, 0, 1)
}
if (!is.null(options$spin3d.rpm)) {
spin3d.rpm <- options$spin3d.rpm
} else {
spin3d.rpm <- c(0, 0, 1)
}
spinFunc <- spin3d(axis = spin3d.axis, rpm = spin3d.rpm)
for(i in 1:options$fig.num) {
par3d(spinFunc(i * options$interval))
Sys.sleep(0.05)
rgl.snapshot(fig_path(".png", number = i), fmt = "png")
}
hook_plot_custom(before, options, envir)
}
}
knit_hooks$set(rgl = hook_rgl_spin)
@
\begin{document}
<< label=rgl1, rgl=TRUE, fig.show='animate', fig.width=5, fig.height=5, out.width='.6\\linewidth', dev='png', fig.num = 40, interval=0.1, spin3d.axis=c(0, 0, 1), spin3d.rpm = 20>>=
scatter3d(prestige ~ income + education, data=Duncan)
@
\end{document}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/25202887
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