我如何才能在每一列添加总标签到ChartWrapper谷歌图表?我试图从谷歌图表搜索到文档,但我是新的谷歌图表,对我来说不是那么容易。
下面的图片链接是我想要的一个例子。我想要的例子
按照我下面的代码,这是个简单的代码。
<html>
<head>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
google.charts.load('current', {
callback: drawChart_var,
packages: ['corechart']
});
function drawChart_var() {
var dataChart = new google.visualization.arrayToDataTable(
[[{ label: 'Category', type: 'string' },{ label: '', type: 'number' },
{ label: 'Base 2', type: 'number' },{ label: 'Base 3', type: 'number' },
{ label: 'Base 4', type: 'number' },{ role: 'style', type: 'string', p: { role: 'style' } }],
['VAR', 0, 0, 3.42, 0, '#EEB14C'],['MIX', 0, 3.42, 3.73, 0, '#69AA51'],
['BNS', 0, 3.73, 3.42, 0, '#D53C38'],['MTRL', 0, 3.42, 2.34, 0, '#D53C38'],
['OTHER', 0, 2.34, 2.69, 0, '#69AA51'],['CORP', 0, 2.69, 0.7, 0, '#D53C38'],
['COST', 0, 0.7, 1.94, 0, '#69AA51'],['PNL', 0, 1.94, 0, 0, '#EEB14C']]
);
var options = {
animation: {duration: 1500,easing: 'inAndOut',startup: true},
backgroundColor: 'transparent',bar: {group: {width: '85%'}},
chartArea: {left: 50,right: 20,bottom: 60,top: 50,width: "100%",height: "70%"},
hAxis: {textStyle: {fontSize: 12}},
height: 400,
legend: 'none',
seriesType: 'bars',
series: {0: {type: 'candlesticks'}},
tooltip: {isHtml: true,trigger: 'both'},
vAxis: {format: 'short',textStyle: {color: '#616161'},viewWindow: {min: 0,max: 11}},
width: '100%',
annotations: {stem: {color: "transparent",length: 100},
textStyle: {color: "#000000",fontSize: 16,}}
};
var chart = new google.visualization.ChartWrapper();
chart.setChartType('ComboChart');
chart.setDataTable(dataChart);
chart.setContainerId('chart_var');
chart.setOptions(options);
chart.draw();
}
</script>
</head>
<body>
<div id="chart_var"></div>
</body>
</html>
要在条形图上面添加标签,你可以使用一个 "标签"。注释栏作用.
{ role: 'annotation', type: 'string' }
然而,在这种情况下,蜡烛棒系列不支持注释。你可以通过查看 数据格式 为每个图表类型。
因此,我们需要添加第二个条形图系列,然后添加注释列。
{ label: 'bar series', type: 'number' },{ role: 'annotation', type: 'string' }
请看下面的工作示例,对于条形图,我们只需使用一个零值......
google.charts.load('current', {
callback: drawChart_var,
packages: ['corechart']
});
function drawChart_var() {
var dataChart = new google.visualization.arrayToDataTable(
[[{ label: 'Category', type: 'string' },{ label: '', type: 'number' },
{ label: 'Base 2', type: 'number' },{ label: 'Base 3', type: 'number' },
{ label: 'Base 4', type: 'number' },{ role: 'style', type: 'string', p: { role: 'style' } },
{ label: 'bar series', type: 'number' },{ role: 'annotation', type: 'string' }],
['VAR', 0, 0, 3.42, 0, '#EEB14C', 0, '3.42'],['MIX', 0, 3.42, 3.73, 0, '#69AA51', 0, '0.31'],
['BNS', 0, 3.73, 3.42, 0, '#D53C38', 0, '-0.31'],['MTRL', 0, 3.42, 2.34, 0, '#D53C38', 0, '-1.08'],
['OTHER', 0, 2.34, 2.69, 0, '#69AA51', 0, '0.35'],['CORP', 0, 2.69, 0.7, 0, '#D53C38', 0, '-1.99'],
['COST', 0, 0.7, 1.94, 0, '#69AA51', 0, '1.24'],['PNL', 0, 1.94, 0, 0, '#EEB14C', 0, '1.94']]
);
var options = {
animation: {duration: 1500,easing: 'inAndOut',startup: true},
backgroundColor: 'transparent',bar: {group: {width: '85%'}},
chartArea: {left: 50,right: 20,bottom: 60,top: 50,width: "100%",height: "70%"},
hAxis: {textStyle: {fontSize: 12}},
height: 400,
legend: 'none',
seriesType: 'bars',
series: {0: {type: 'candlesticks'}},
tooltip: {isHtml: true,trigger: 'both'},
vAxis: {format: 'short',textStyle: {color: '#616161'},viewWindow: {min: 0,max: 11}},
width: '100%',
annotations: {stem: {color: "transparent",length: 100},
textStyle: {color: "#000000",fontSize: 16,}}
};
var chart = new google.visualization.ChartWrapper();
chart.setChartType('ComboChart');
chart.setDataTable(dataChart);
chart.setContainerId('chart_var');
chart.setOptions(options);
chart.draw();
}
<script src="https://www.gstatic.com/charts/loader.js"></script>
<div id="chart_var"></div>
编辑
至于注解的位置,由于我们对注解所在的列使用的是零值,所以位置是由选项-->设置的。annotations.stem.length = 100
意味着它的位置将始终是距离图表底部100像素。
为了使位置动态化,我们需要删除"--> "选项。length
选项,并赋予该列一个大于零的值,该列的值应该是蜡烛图的最大值。
为了找到最大值,我们可以使用数据表方法-->。getColumnRange(colIndex)
这个方法将返回一个对象,其属性为我们提供的列的最小值& 最大值。
我们需要找到Base 2和Base 3列之间的最大值。
// find max height
var maxBase2 = dataChart.getColumnRange(2);
var maxBase3 = dataChart.getColumnRange(3);
var maxColumn = Math.max(maxBase2.max, maxBase3.max);
然后用最大值更新我们的注解列。
// update column values to max
for (var i = 0; i < dataChart.getNumberOfRows(); i++) {
dataChart.setValue(i, 6, maxColumn);
}
为了确保注释显示在列的顶部,添加选项-->。alwaysOutside
annotations: {
alwaysOutside: true,
stem: {color: 'transparent'},
textStyle: {color: '#000000',fontSize: 16}
}
同样,删除 length
选项,并将列系列的颜色设置为透明。
并将列系列的颜色设置为透明。
1: {color: 'transparent'}
这将导致注解总是出现在蜡烛图的正上方。
请看下面的工作片段...
google.charts.load('current', {
callback: drawChart_var,
packages: ['corechart']
});
function drawChart_var() {
var dataChart = new google.visualization.arrayToDataTable(
[[{ label: 'Category', type: 'string' },{ label: '', type: 'number' },
{ label: 'Base 2', type: 'number' },{ label: 'Base 3', type: 'number' },
{ label: 'Base 4', type: 'number' },{ role: 'style', type: 'string', p: { role: 'style' } },
{ label: 'bar series', type: 'number' },{ role: 'annotation', type: 'string' }],
['VAR', 0, 0, 3.42, 0, '#EEB14C', 0, '3.42'],['MIX', 0, 3.42, 3.73, 0, '#69AA51', 0, '0.31'],
['BNS', 0, 3.73, 3.42, 0, '#D53C38', 0, '-0.31'],['MTRL', 0, 3.42, 2.34, 0, '#D53C38', 0, '-1.08'],
['OTHER', 0, 2.34, 2.69, 0, '#69AA51', 0, '0.35'],['CORP', 0, 2.69, 0.7, 0, '#D53C38', 0, '-1.99'],
['COST', 0, 0.7, 1.94, 0, '#69AA51', 0, '1.24'],['PNL', 0, 1.94, 0, 0, '#EEB14C', 0, '1.94']]
);
// find max height
var maxBase2 = dataChart.getColumnRange(2);
var maxBase3 = dataChart.getColumnRange(3);
var maxColumn = Math.max(maxBase2.max, maxBase3.max);
// update column values to max
for (var i = 0; i < dataChart.getNumberOfRows(); i++) {
dataChart.setValue(i, 6, maxColumn);
}
var options = {
animation: {duration: 1500,easing: 'inAndOut',startup: true},
backgroundColor: 'transparent',bar: {group: {width: '85%'}},
chartArea: {left: 50,right: 20,bottom: 60,top: 50,width: '100%',height: '70%'},
hAxis: {textStyle: {fontSize: 12}},
height: 400,
legend: 'none',
seriesType: 'bars',
series: {
0: {type: 'candlesticks'},
1: {color: 'transparent'}
},
tooltip: {isHtml: true,trigger: 'both'},
vAxis: {format: 'short',textStyle: {color: '#616161'},viewWindow: {min: 0,max: 11}},
width: '100%',
annotations: {
alwaysOutside: true,
stem: {color: 'transparent'},
textStyle: {color: '#000000',fontSize: 16}
}
};
var chart = new google.visualization.ChartWrapper();
chart.setChartType('ComboChart');
chart.setDataTable(dataChart);
chart.setContainerId('chart_var');
chart.setOptions(options);
chart.draw();
}
<script src="https://www.gstatic.com/charts/loader.js"></script>
<div id="chart_var"></div>