Javascript 如何添加按钮在仪表板中的两种谷歌图表之间切换
我有一个折线图和一个daterangefilter应用于该折线图,这是我目前的代码Javascript 如何添加按钮在仪表板中的两种谷歌图表之间切换,javascript,google-visualization,Javascript,Google Visualization,我有一个折线图和一个daterangefilter应用于该折线图,这是我目前的代码 function go(){ window.setTimeout( function(){ var p=0; var table = document.getElementById('mytable'); var rows = table.getElementsByTagName('tr'); var i, j, cells; var distance=[]; var date=[]; var entryid
function go(){
window.setTimeout( function(){
var p=0;
var table = document.getElementById('mytable');
var rows = table.getElementsByTagName('tr');
var i, j, cells;
var distance=[];
var date=[];
var entryid=[];
j=rows.length;
for (i = 1; i < j; i++) {
cells = rows[i].getElementsByTagName('td');
if (!cells.length) {
continue;
}
distance[i-1] = parseInt(cells[1].innerHTML);
date[i-1]=new Date(reverse(cells[2].innerHTML));
entryid[i-1]=cells[0].innerHTML;
}
var c=[];
for (var z=0;z<distance.length;z++){
c.push([date[z],distance[z]]);
}
/*document.getElementById('cvs').innerHTML=c;*/
function reverse(f){
var g=f.split("/");
var goodstr=g[1]+"/"+g[2]+"/"+g[0];
return goodstr;
}
google.charts.load('44', {
callback: drawBackgroundColor,
packages: ['corechart','controls']
});
function drawBackgroundColor() {
var data = new google.visualization.DataTable();
data.addColumn('date', 'Date');
data.addColumn('number', 'Distance');
data.addRows(c);
var options = {
hAxis: {
title: 'Date'
},
vAxis: {
title: 'Distance Ran'
},
backgroundColor: '#f1f8e9'
};
var control;
var chartWrapper;
var dash;
dash = new google.visualization.Dashboard(
document.getElementById('dashboard_div'));
var controlOptions = {
filterColumnIndex: 0
};
///////////////////////////
control = new google.visualization.ControlWrapper({
controlType: 'DateRangeFilter',
containerId: 'control_div',
options: controlOptions
});
chartWrapper = new google.visualization.ChartWrapper({
chartType:'LineChart',//'LineChart', //'LineChart',
containerId: 'cvs',
options: options
});
dash.bind([control], [chartWrapper]);
dash.draw(data);
}
}, 5 * 1000 );
函数go(){
setTimeout(函数(){
var p=0;
var table=document.getElementById('mytable');
var rows=table.getElementsByTagName('tr');
varⅠ,j,细胞;
var距离=[];
var日期=[];
var entryid=[];
j=行数。长度;
对于(i=1;idocument.getElementById('b2').addEventListener("click", changeType);
function changeType(){
chartWrapper.setChartType('ColumnChart');
chartWrapper.draw();
}
您可以使用
chartWrapper.setChartType(type)
切换图表类型,然后重新绘制图表以查看更改…我在dashboard div中添加了一个按钮,并给它一个id=“b2”,并在回调函数var barsButton=document.getElementById('b2');google.visualization.events.addListener(barsButton,'click',function(){chartWrapper.setChartType('BarChart');})中添加了此代码;但在这之后它就没有任何效果了put chartWrapper.draw();类似于函数changeType(){programmaticChart.setChartType('ColumnChart');programmaticChart.draw();}非常感谢rick,你的代码工作了,为什么你的代码工作了,而不是这个变量barsButton=document.getElementById('b2');google.visualization.events.addListener(barsButton,'click',function(){chartWrapper.setChartType('BarChart');});,是范围问题吗?