Question

我刚开始学习Javascript和Jquery。我已经能够创建一个显示随机生成值的简单仪表。我试图使这个仪表可以拖动。

这是我的项目。 https://jsfiddle.net/apoorvasomani/aLnvvn00/

Javascript代码 -

<script src="http://code.highcharts.com/highcharts.js"></script>
<script src="http://code.highcharts.com/highcharts-more.js"></script>
<script src="http://code.highcharts.com/modules/solid-gauge.js"></script>
<div style="width: 600px; height: 400px; margin: 0 auto">
    <div id="container-speed" style="width: 300px; height: 200px; float: left"></div>
</div>

HTML -

$(function () {
var gaugeOptions = {
    chart: {
        type: 'solidgauge'
    },
    title: null,
    pane: {
        center: ['50%', '85%'],
        size: '140%',
        startAngle: -90,
        endAngle: 90,
        background: {
            backgroundColor: (Highcharts.theme && Highcharts.theme.background2) || '#EEE',
            innerRadius: '60%',
            outerRadius: '100%',
            shape: 'arc'
        }
    },

    tooltip: {
        enabled: false
    },

    // the value axis
    yAxis: {
        stops: [
            [0.1, '#55BF3B'], // green
            [0.5, '#DDDF0D'], // yellow
            [0.9, '#DF5353'] // red
            ],
        lineWidth: 0,
        minorTickInterval: null,
        tickPixelInterval: 400,
        tickWidth: 0,
        title: {
            y: -70
        },
        labels: {
            y: 16
        }
    },

    plotOptions: {
        solidgauge: {
            dataLabels: {
                y: 5,
                borderWidth: 0,
                useHTML: true
            }
        }
    }
};

// The speed gauge
$('#container-speed').highcharts(Highcharts.merge(gaugeOptions, {
    yAxis: {
        min: 0,
        max: 200,
        title: {
            text: 'Speed'
        }
    },

    credits: {
        enabled: false
    },

    series: [{
        name: 'Speed',
        data: [80],
        dataLabels: {
            format: '<div style="text-align:center"><span style="font-size:25px;color:' + ((Highcharts.theme && Highcharts.theme.contrastTextColor) || 'black') + '">{y}</span><br/>' +
                '<span style="font-size:12px;color:silver">km/h</span></div>'
        },
        tooltip: {
            valueSuffix: ' km/h'
        }
    }]

}));

// Bring life to the dials
setInterval(function () {
    // Speed
    var chart = $('#container-speed').highcharts(),
        point,
        newVal,
        inc;

    if (chart) {
        point = chart.series[0].points[0];
        inc = Math.round((Math.random() - 0.5) * 100);
        newVal = point.y + inc;

        if (newVal < 0 || newVal > 200) {
            newVal = point.y - inc;
        }

        point.update(newVal);
    }


}, 2000);


});

我搜索了谷歌，其中大部分都讲述了如何使html元素可拖动而不是使用jquery draggable制作的东西。请帮助我了解需要做什么。

可拖动的Jquery Meter

0 个答案: