我正在使用Rickshaw来创建实时更新时间序列图。
以下是演示:http://abhshkdz.github.io/icuvisualanalytics/prototypes/rickshaw.html
数据采用csv格式(时间,值),这是可视化的核心javascript:
var count = 0, index=0;
var margin = {top: 10, right: 10, bottom: 10, left: 10},
width = window.innerWidth - margin.right - margin.left - 100,
height = window.innerHeight - margin.top - margin.bottom - 100;
var graph = new Rickshaw.Graph( {
element: document.querySelector("#chart"),
width: width,
height: height,
renderer: 'line',
min: -300,
max: 500,
preserve: true,
series: new Rickshaw.Series.FixedDuration(
[
{
name: 'ECG',
color: palette.color()
}
],
undefined,
{
timeInterval: 12.5,
maxDataPoints: 400,
timeBase: data[index][count].x
})
})
var x_axis = new Rickshaw.Graph.Axis.Time( { graph: graph } );
var y_axis = new Rickshaw.Graph.Axis.Y( {
graph: graph,
orientation: 'left',
tickFormat: Rickshaw.Fixtures.Number.formatKMBT,
element: document.getElementById('y_axis')
} );
var hoverDetail = new Rickshaw.Graph.HoverDetail( {
graph: graph
} );
graph.render();
setInterval(function () {
if (count == 2397) {
count = 0;
index++;
}
var d = {'ECG': data[index][count+=3].y};
graph.series.addData(d);
graph.render();
}, 12.5);
现在有一组由算法生成的数据。该数据也采用csv格式(时间,价值)。它基本上找到了这个图的高峰。使用该数据,我想在此可视化本身上标记这些点。
据我所知,人力车本身不支持使用不同渲染器的多个系列(两者都必须是直线或两个散点图等。)
那我该怎么办呢?
答案 0 :(得分:4)
大约一个月前添加了多重渲染器功能。这个example显示了如何在一个图表中组合多个渲染器。该示例的相关代码:
var graph = new Rickshaw.Graph( {
element: document.getElementById("chart"),
renderer: 'multi',
width: 900,
height: 500,
dotSize: 2,
series: [
{
name: 'temperature',
data: seriesData.shift(),
color: 'rgba(255, 0, 0, 0.4)',
renderer: 'stack'
}, {
name: 'heat index',
data: seriesData.shift(),
color: 'rgba(255, 127, 0, 0.4)',
renderer: 'stack'
}, {
name: 'dewpoint',
data: seriesData.shift(),
color: 'rgba(127, 0, 0, 0.3)',
renderer: 'scatterplot'
}, {
name: 'pop',
data: seriesData.shift().map(function(d) { return { x: d.x, y: d.y / 4 } }),
color: 'rgba(0, 0, 127, 0.4)',
renderer: 'bar'
}, {
name: 'humidity',
data: seriesData.shift().map(function(d) { return { x: d.x, y: d.y * 1.5 } }),
renderer: 'line',
color: 'rgba(0, 0, 127, 0.25)'
}
]
});