chart.js的使用

admin2022-01-04 2.2K+

//入门
import win.ui;
/*DSG{{*/
var winform = win.form(text="图表组件: Chart.js";right=1063;bottom=729)
winform.add(
button={cls="button";text="aardio 修改数据";left=832;top=683;right=990;bottom=723;db=1;dr=1;z=2};
lbBrowser={cls="static";text="Static";left=15;top=8;right=1053;bottom=680;db=1;dl=1;dr=1;dt=1;transparent=1;z=1}
)
/*}}*/

import web.form; 
var wb = web.form.ie11(winform.lbBrowser);

import web.json;
wb.external = {
	getData = function(){
		var data = {{
            label: '# of Votes',
            data: {12, 19, 3, 5, 2, 3},
            backgroundColor: {
                'rgba(255, 99, 132, 0.2)',
                'rgba(54, 162, 235, 0.2)',
                'rgba(255, 206, 86, 0.2)',
                'rgba(75, 192, 192, 0.2)',
                'rgba(153, 102, 255, 0.2)',
                'rgba(255, 159, 64, 0.2)'
            },
            borderColor: {
                'rgba(255, 99, 132, 1)',
                'rgba(54, 162, 235, 1)',
                'rgba(255, 206, 86, 1)',
                'rgba(75, 192, 192, 1)',
                'rgba(153, 102, 255, 1)',
                'rgba(255, 159, 64, 1)'
            },
            borderWidth: 1
        }}
		
		return web.json.stringifyArray(data);
	};
} 

winform.button.oncommand = function(id,event){ 
	wb.script.chart.data.datasets[0].data[2] = 50;  
	wb.script.chart.update(); 
}

wb.html = /**
<!doctype html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge" /> 
	<script src="https://lib.baomitu.com/Chart.js/2.9.4/Chart.min.js"/></script>
	<link rel="stylesheet" href="https://lib.baomitu.com/Chart.js/2.9.4/Chart.min.css"/>
</head>
<body>

<canvas id="myChart" width="400" height="200"></canvas>
<script>
var ctx = document.getElementById('myChart');
window.chart = new Chart(ctx, {
    type: 'bar',
    data: {
        labels: ['Red', 'Blue', 'Yellow', 'Green', 'Purple', 'Orange'],
        datasets: JSON.parse( external.getData() )
    },
    options: {
        scales: {
            yAxes: [{
                ticks: {
                    beginAtZero: true
                }
            }]
        }
    }
});
</script>
</body>
</html>
**/

winform.show();
return win.loopMessage();

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