Vega：
https://vega.github.io/vega/examples/
Vega是什么？
相比其他第三方可视化库，Vega的目的是让你更快将数据进行展现，vega通过声明的方式可以快速将你的数据进行各种格式化，而不用纠结于具体的调用细节，和SQL这种通用式交互语言类似，数据的输入是JSON。
Vega的Kibana插件下载地址：
https://github.com/nyurik/kibana-vega-vis/releases
安装之后，就能在可视化类型里面选择Vega了，使用起来很简单，输入相应的描叙语言，如：
{
"$schema": "https://vega.github.io/schema/ ... ot%3B,
"description": "A simple bar chart with embedded data.",
"width": 300, "height": 200, "padding": 5,
"data": {
"values": [
{"a": "A","b": 28}, {"a": "B","b": 55}, {"a": "C","b": 43},
{"a": "D","b": 91}, {"a": "E","b": 81}, {"a": "F","b": 53},
{"a": "G","b": 19}, {"a": "H","b": 87}, {"a": "I","b": 52}
]
},
"mark": "bar",
"encoding": {
"x": {"field": "a", "type": "ordinal"},
"y": {"field": "b", "type": "quantitative"}
}
}
Vega支持各种可视化类型，更多详情请参照文档和例子：
https://vega.github.io/vega-li ... k-def
https://vega.github.io/vega/examples/
https://github.com/nyurik/kiba ... -demo
