我需要为实心标尺高图表添加自定义标签，如小提琴所示 - http://jsfiddle.net/195gmh5k/1/
$(function () {
// Uncomment to style it like Apple Watch
/*
if (!Highcharts.theme) {
Highcharts.setOptions({
chart: {
backgroundColor: 'black'
},
colors: ['#F62366', '#9DFF02', '#0CCDD6'],
title: {
style: {
color: 'silver'
}
},
tooltip: {
style: {
color: 'silver'
}
}
});
}
// */
Highcharts.chart('container', {
chart: {
type: 'solidgauge',
marginTop: 50
},
title: {
text: 'Activity',
style: {
fontSize: '24px'
}
},
tooltip: {
borderWidth: 0,
backgroundColor: 'none',
shadow: false,
style: {
fontSize: '16px'
},
pointFormat: '{series.name}<br><span style="font-size:2em; color: {point.color}; font-weight: bold">{point.y}%</span>',
positioner: function (labelWidth) {
return {
x: 200 - labelWidth / 2,
y: 180
};
}
},
pane: {
startAngle: 0,
endAngle: 360,
background: [{ // Track for Move
outerRadius: '112%',
innerRadius: '88%',
backgroundColor: Highcharts.Color(Highcharts.getOptions().colors[0]).setOpacity(0.3).get(),
borderWidth: 0
}, { // Track for Exercise
outerRadius: '87%',
innerRadius: '63%',
backgroundColor: Highcharts.Color(Highcharts.getOptions().colors[1]).setOpacity(0.3).get(),
borderWidth: 0
}, { // Track for Stand
outerRadius: '62%',
innerRadius: '38%',
backgroundColor: Highcharts.Color(Highcharts.getOptions().colors[2]).setOpacity(0.3).get(),
borderWidth: 0
}]
},
yAxis: {
min: 0,
max: 100,
lineWidth: 0,
tickPositions: [],
plotLines: [{
color: 'red', // Color value
value: 0, // Value of where the line will appear
width: 2, // Width of the line,
zIndex: 10
}, {
color: 'red',
value: 33.3,
width: 2,
zIndex: 10
}, {
color: 'red',
value: 66.6,
width: 2,
zIndex: 10
}]
},
plotOptions: {
solidgauge: {
borderWidth: '34px',
dataLabels: {
enabled: false
},
linecap: 'round',
stickyTracking: false
}
},
series: [{
name: 'Move',
borderColor: Highcharts.getOptions().colors[0],
data: [{
color: Highcharts.getOptions().colors[0],
radius: '100%',
innerRadius: '100%',
y: 80
}]
}, {
name: 'Exercise',
borderColor: Highcharts.getOptions().colors[1],
data: [{
color: Highcharts.getOptions().colors[1],
radius: '75%',
innerRadius: '75%',
y: 65
}]
}, {
name: 'Stand',
borderColor: Highcharts.getOptions().colors[2],
data: [{
color: Highcharts.getOptions().colors[2],
radius: '50%',
innerRadius: '50%',
y: 50
}]
}]
},
/**
* In the chart load callback, add icons on top of the circular shapes
*/
function callback() {
// Move icon
this.renderer.label('hello1', 180, 35, 'rect', 0, 0, true, true, '')
.add(this.series[2].group);
// Exercise icon
this.renderer.label('hello2', 180, 65, 'rect', 0, 0, true, true, '')
.add(this.series[2].group);
// Stand icon
this.renderer.label('hello3', 180, 100, 'rect', 0, 0, true, true, '')
.add(this.series[2].group);
});
});
我使用Renderer.label api来指定标签的位置。
目前我尝试在试错的基础上找到x和y坐标。
指定标签坐标的效率（基础方法）的方法是什么？我需要指定沿着不同仪表的垂直绘图线对齐所有标签。
答案 0 :(得分：0)
我找到了一个更好、最干净的解决方案：
Highcharts.chart('container', {
chart: {
type: 'solidgauge',
height: '50%',
events: {
render: renderIcons,
redraw: function () {
for (var i = 0; i < this.series.length; i++){
if (!this.series[i].icon) {
this.series[i].icon = this.renderer.label(this.series[i].yData[0]+'%', this.series[i].data[0].x, this.series[i].data[0].y, 'rect')
.attr({
zIndex: 10,
fontColor:'#FFFF'
})
.add(this.series[2].group);
this.series[i].icon.translate(
this.chartWidth / 2 - 5,
this.plotHeight / 2 - this.series[i].points[0].shapeArgs.innerR -
(this.series[i].points[0].shapeArgs.r - this.series[i].points[0].shapeArgs.innerR) / 2
);
}
}
}
},
},
legend: {
enabled: true
},
title: {
text: 'My chart',
style: {
fontSize: '24px'
}
},
tooltip: {
borderWidth: 0,
backgroundColor: 'none',
shadow: false,
style: {
fontSize: '16px'
},
valueSuffix: '%',
pointFormat: '{series.name}<br><span style="font-size:2em; color: {point.color}; font-weight: bold">{point.y}</span>',
positioner: function (labelWidth) {
return {
x: (this.chart.chartWidth - labelWidth) / 2,
y: (this.chart.plotHeight / 2) + 15
};
}
},
pane: {
startAngle: 0,
endAngle: 360,
background: [{ // Track for Move
outerRadius: '112%',
innerRadius: '88%',
backgroundColor: Highcharts.color(Highcharts.getOptions().colors[0])
.setOpacity(0.3)
.get(),
borderWidth: 0
}, { // Track for Exercise
outerRadius: '87%',
innerRadius: '63%',
backgroundColor: Highcharts.color(Highcharts.getOptions().colors[1])
.setOpacity(0.3)
.get(),
borderWidth: 0
}, { // Track for Stand
outerRadius: '62%',
innerRadius: '38%',
backgroundColor: Highcharts.color(Highcharts.getOptions().colors[2])
.setOpacity(0.3)
.get(),
borderWidth: 0
}]
},
yAxis: {
min: 0,
max: 100,
lineWidth: 0,
tickPositions: [],
},
plotOptions: {
solidgauge: {
dataLabels: {
enabled: false
},
linecap: 'round',
stickyTracking: false,
rounded: true,
showInLegend: true,
//colors: ['#F62366', '#9DFF02', '#0CCDD6'],
}
},
series: [{
name: 'Move',
colorByPoint: true,
marker: {
fillColor: '#7cb5ec',
},
data: [{
color: '#7cb5ec',
radius: '112%',
innerRadius: '88%',
y: 80
}],
}, {
name: 'Exercise',
marker: {
fillColor: '#f7a35c',
},
data: [{
color: '#f7a35c',
radius: '87%',
innerRadius: '63%',
y: 65
}],
}, {
name: 'Stand',
marker: {
fillColor: '#90ee7e'
},
data: [{
color: '#90ee7e',
radius: '62%',
innerRadius: '38%',
y: 50
}],
}],
});
现在，renderIcons 函数可以将标签渲染为图标：
function renderIcons() {
for (var i = 0; i < this.series.length; i++){
if (!this.series[i].icon) {
this.series[i].icon = this.renderer.label(this.series[i].yData[0]+'%', this.series[i].data[0].x, this.series[i].data[0].y, 'rect')
.attr({
zIndex: 10,
fontColor:'#FFFF'
})
.add(this.series[2].group);
this.series[i].icon.translate(
this.chartWidth / 2 - 5,
this.plotHeight / 2 - this.series[i].points[0].shapeArgs.innerR -
(this.series[i].points[0].shapeArgs.r - this.series[i].points[0].shapeArgs.innerR) / 2
);
}
}
}
此功能用于添加颜色系列的图例：
Highcharts.Legend.prototype.colorizeItem = function(item, visible) {
item.legendGroup[visible ? 'removeClass' : 'addClass']('highcharts-legend-item-hidden');
if (!this.chart.styledMode) {
var legend = this,
options = legend.options,
legendItem = item.legendItem,
legendLine = item.legendLine,
legendSymbol = item.legendSymbol,
hiddenColor = legend.itemHiddenStyle.color,
textColor = visible ?
options.itemStyle.color :
hiddenColor,
symbolColor = visible ?
(item.color || hiddenColor) :
hiddenColor,
markerOptions = item.options && item.options.marker,
symbolAttr = {
fill: symbolColor
};
if (legendItem) {
legendItem.css({
fill: textColor,
color: textColor // #1553, oldIE
});
}
if (legendLine) {
legendLine.attr({
stroke: symbolColor
});
}
if (legendSymbol) {
// Apply marker options
if (markerOptions) { // #585
symbolAttr = item.pointAttribs();
if (!visible) {
// #6769
symbolAttr.stroke = symbolAttr.fill = hiddenColor;
}
}
legendSymbol.attr(symbolAttr);
}
}
Highcharts.fireEvent(this, 'afterColorizeItem', {
item: item,
visible: visible
});
}
问候。