我有类型"arearange"行的高级图，例如
http://jsfiddle.net/gh/get/jquery/3.1.1/highslide-software/highcharts.com/tree/master/samples/highcharts/demo/arearange-line/
当线条超出（或交叉）范围值时，我想对线条使用负色。要实现此目的，我们可以在"threshold"属性中使用"series"，但我的问题是，我没有单一的阈值，当该行越过范围值时，我想将该线绘制为负数颜色。
下面是可以在上面的小提琴链接中执行的示例代码。我提到的几个值（例如）用负色绘制，用下面的代码用命令行表示（＆＃34;这里我想要一个负色＆＃34;）。
$(function () {
var ranges = [
[1246406400000, 14.3, 27.7],
[1246492800000, 14.5, 27.8],
[1246579200000, 15.5, 29.6],
[1246665600000, 16.7, 30.7],
[1246752000000, 16.5, 25.0],
[1246838400000, 17.8, 25.7],
[1246924800000, 13.5, 24.8],
[1247011200000, 10.5, 21.4],
[1247097600000, 9.2, 23.8],
[1247184000000, 11.6, 21.8],
[1247270400000, 10.7, 23.7],
[1247356800000, 11.0, 23.3],
[1247443200000, 11.6, 23.7],
[1247529600000, 11.8, 20.7],
[1247616000000, 12.6, 22.4],
[1247702400000, 13.6, 19.6],
[1247788800000, 11.4, 22.6],
[1247875200000, 13.2, 25.0],
[1247961600000, 14.2, 21.6],
[1248048000000, 13.1, 17.1],
[1248134400000, 12.2, 15.5],
[1248220800000, 12.0, 20.8],
[1248307200000, 12.0, 17.1],
[1248393600000, 12.7, 18.3],
[1248480000000, 12.4, 19.4],
[1248566400000, 12.6, 19.9],
[1248652800000, 11.9, 20.2],
[1248739200000, 11.0, 19.3],
[1248825600000, 10.8, 17.8],
[1248912000000, 11.8, 18.5],
[1248998400000, 10.8, 16.1]
],
averages = [
[1246406400000, 81.5],**//Here i want a negative color**
[1246492800000, 22.1],
[1246579200000, 3], **//Here i want a negative color**
[1246665600000, 23.8],
[1246752000000, 21.4],
[1246838400000, 21.3],
[1246924800000, 18.3],
[1247011200000, 15.4],
[1247097600000, 16.4],
[1247184000000, 17.7],
[1247270400000, 17.5],
[1247356800000, 17.6],
[1247443200000, 17.7],
[1247529600000, 16.8],
[1247616000000, 17.7],
[1247702400000, 16.3],
[1247788800000, 17.8],
[1247875200000, 18.1],
[1247961600000, 17.2],
[1248048000000, 14.4],
[1248134400000, 13.7],
[1248220800000, 15.7],
[1248307200000, 34.6],**//Here i want a negative color**
[1248393600000, -15.3],
[1248480000000, 15.3],
[1248566400000, 15.8],
[1248652800000, 15.2],
[1248739200000, 14.8],
[1248825600000, 14.4],
[1248912000000, 15],
[1248998400000, 90.6] `//Here i want a negative color`
];
Highcharts.chart('container', {
title: {
text: 'July temperatures'
},
xAxis: {
type: 'datetime'
},
yAxis: {
title: {
text: null
}
},
tooltip: {
crosshairs: true,
shared: true,
valueSuffix: '°C'
},
legend: {
},
series: [{
name: 'Temperature',
data: averages,
zIndex: 1,
marker: {
fillColor: 'white',
lineWidth: 2,
lineColor: Highcharts.getOptions().colors[0]
}
}, {
name: 'Range',
data: ranges,
type: 'arearange',
lineWidth: 0,
linkedTo: ':previous',
color: Highcharts.getOptions().colors[0],
fillOpacity: 0.3,
zIndex: 0
}]
});
});
答案 0 :(得分：1)
使用区域或多色系列插件可以提供预期的效果。您也可以在官方的Highcharts论坛上找到问题的答案：http://forum.highcharts.com/highcharts-usage/arearange-dynamic-threshold-value-change-color-t37236/。
$(function() {
var ranges = [
[1246406400000, 14.3, 27.7],
[1246492800000, 14.5, 27.8],
[1246579200000, 15.5, 29.6],
[1246665600000, 16.7, 30.7],
[1246752000000, 16.5, 25.0],
[1246838400000, 17.8, 25.7],
[1246924800000, 13.5, 24.8],
[1247011200000, 10.5, 21.4],
[1247097600000, 9.2, 23.8],
[1247184000000, 11.6, 21.8],
[1247270400000, 10.7, 23.7],
[1247356800000, 11.0, 23.3],
[1247443200000, 11.6, 23.7],
[1247529600000, 11.8, 20.7],
[1247616000000, 12.6, 22.4],
[1247702400000, 13.6, 19.6],
[1247788800000, 11.4, 22.6],
[1247875200000, 13.2, 25.0],
[1247961600000, 14.2, 21.6],
[1248048000000, 13.1, 17.1],
[1248134400000, 12.2, 15.5],
[1248220800000, 12.0, 20.8],
[1248307200000, 12.0, 17.1],
[1248393600000, 12.7, 18.3],
[1248480000000, 12.4, 19.4],
[1248566400000, 12.6, 19.9],
[1248652800000, 11.9, 20.2],
[1248739200000, 11.0, 19.3],
[1248825600000, 10.8, 17.8],
[1248912000000, 11.8, 18.5],
[1248998400000, 10.8, 16.1]
],
averages = [{
x: 1246406400000,
y: 81.5,
segmentColor: Highcharts.getOptions().colors[3],
marker: {
fillColor: Highcharts.getOptions().colors[3]
}
},
[1246492800000, 22.1],
[1246579200000, 23],
[1246665600000, 23.8],
[1246752000000, 21.4],
[1246838400000, 21.3],
[1246924800000, 18.3],
[1247011200000, 15.4],
[1247097600000, 16.4],
[1247184000000, 17.7], {
x: 1247270400000,
y: 17.5,
segmentColor: Highcharts.getOptions().colors[3]
}, {
x: 1247356800000,
y: 77.6,
segmentColor: Highcharts.getOptions().colors[3],
marker: {
fillColor: Highcharts.getOptions().colors[3]
}
},
[1247443200000, 17.7],
[1247529600000, 16.8],
[1247616000000, 17.7],
[1247702400000, 16.3],
[1247788800000, 17.8],
[1247875200000, 18.1],
[1247961600000, 17.2],
[1248048000000, 14.4],
[1248134400000, 13.7],
[1248220800000, 15.7], {
x: 1248307200000,
y: 14.6,
segmentColor: Highcharts.getOptions().colors[3],
}, {
x: 1248393600000,
y: -5,
segmentColor: Highcharts.getOptions().colors[3],
marker: {
fillColor: Highcharts.getOptions().colors[3]
}
},
[1248480000000, 15.3],
[1248566400000, 15.8],
[1248652800000, 15.2],
[1248739200000, 14.8],
[1248825600000, 14.4],
[1248912000000, 15],
[1248998400000, 13.6]
];
Highcharts.chart('container', {
title: {
text: 'July temperatures'
},
xAxis: {
type: 'datetime'
},
yAxis: {
title: {
text: null
}
},
tooltip: {
crosshairs: true,
shared: true,
valueSuffix: '°C'
},
series: [{
name: 'Temperature',
data: averages,
type: 'coloredline',
zIndex: 1,
}, {
name: 'Range',
data: ranges,
type: 'arearange',
lineWidth: 0,
linkedTo: ':previous',
color: Highcharts.getOptions().colors[0],
fillOpacity: 0.3,
zIndex: 0
}]
});
});
API参考：
http://api.highcharts.com/highcharts/series%3Cline%3E.zones
示例：
http://jsfiddle.net/k1bL3umw/ - 使用区域
http://jsfiddle.net/q0uh8z34/ - 使用多色系列插件