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【系统】动画视频 #15
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这一节一定要找一个很棒的例子才动笔 很有意思的真实数据,很酷炫的效果 mapmate 不再维护了,有点可惜,可能是为了支持 gganimate,作者主页上的 demo 很炫 https://leonawicz.github.io/ |
这个例子源于余光创的博客https://guangchuangyu.github.io/cn/2017/09/3d-breast/ 这种类型的例子不适合放在书里面 其中
GIF 动画
[gganimate 动画制作,以 mtcars 为例介绍 tweenr 通过插值生成中间过渡帧]{.todo} 生成静态图片
用来分面的变量 cyl 作为转场的帧
|
影响动画在线生成的因素 目前 gitbook 版 每章开头都会加载 knitr::opts_chunk$set(
fig.align = "center",
cache = TRUE,
small.mar = TRUE,
fig.showtext = TRUE,
dpi = 300
) 意味着启用 |
这一节升级为视频动画
除了介绍 animation 包依赖 FFmpeg/ SWF Tools/ ImageMagick/ GraphicsMagick 做动画视频外,补充 av 和 gganimate 借助 cargo 和系统库 libavfilter-dev,就是要去掉安装和配置软件的麻烦,话说 gganimate 现在很火
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