如何重新启动绘图/动画chart -js

How I can restart drawing/animation chartist-js?

本文关键字：动画 chart -js 绘图 重新启动      更新时间：2023-09-26

使用help chart -js我创建了一个图表。我想再次开始绘制(动画)图形。怎么做呢?我的代码创建和动画图形:

var chart = new Chartist.Line('#savings_calculator .graph', {
    series: [
        [1, 1.6, 2.8, 2.7, 3.1, 3.4, 3.8, 4.5, 5.7, 5.6, 7.5, 9.5]
    ]
}, {
    axisX: {
        showLabel: false,
        showGrid: false
    },
    axisY: {
        showLabel: false,
        showGrid: false
    },
    lineSmooth: false,
    low: 0
});
// Let's put a sequence number aside so we can use it in the event callbacks
var seq = 0,
    delays = 100,
    durations = 10;
// On each drawn element by Chartist we use the Chartist.Svg API to trigger SMIL animations
chart.on('draw', function (data) {
    seq++;
    if (data.type === 'line') {
        // If the drawn element is a line we do a simple opacity fade in. This could also be achieved using CSS3 animations.
        data.element.animate({
            opacity: {
                // The delay when we like to start the animation
                begin: seq * delays + 0,
                // Duration of the animation
                dur: durations,
                // The value where the animation should start
                from: 0,
                // The value where it should end
                to: 1
            }
        });
    } else if (data.type === 'point') {
        data.element.animate({
            x1: {
                begin: seq * delays,
                dur: durations,
                from: data.x - 10,
                to: data.x,
                easing: 'easeOutQuart'
            },
            x2: {
                begin: seq * delays,
                dur: durations,
                from: data.x - 10,
                to: data.x,
                easing: 'easeOutQuart'
            },
            opacity: {
                begin: seq * delays,
                dur: durations,
                from: 0,
                to: 1,
                easing: 'easeOutQuart'
            },
        });
    }
});

此代码仅包含创建图形的原始代码。没有代码，我试图重新绘制图形。

我自己解决了一个问题。Little重写了代码，将其封装在一个函数中，并在必要时再次运行它。

var chart = new Chartist.Line('#savings_calculator .graph', {
    series: [
        [1, 1.6, null, null, null, null, null, null, null, null, null, null],
        [null, 1.6, 2.8, null, null, null, null, null, null, null, null, null],
        [null, null, 2.8, 2.7, null, null, null, null, null, null, null, null],
        [null, null, null, 2.7, 3.1, null, null, null, null, null, null, null],
        [null, null, null, null, 3.1, 3.4, null, null, null, null, null, null],
        [null, null, null, null, null, 3.4, 3.8, null, null, null, null, null],
        [null, null, null, null, null, null, 3.8, 4.5, null, null, null, null],
        [null, null, null, null, null, null, null, 4.5, 5.7, null, null, null],
        [null, null, null, null, null, null, null, null, 5.7, 5.6, null, null],
        [null, null, null, null, null, null, null, null, null, 5.6, 7.5, null],
        [null, null, null, null, null, null, null, null, null, null, 7.5, 9.5]
    ]
}, {
    axisX: {
        showLabel: false,
        showGrid: false
    },
    axisY: {
        showLabel: false,
        showGrid: false
    },
    lineSmooth: false,
    low: 0
});
// Let's put a sequence number aside so we can use it in the event callbacks
var seq = 0,
    delays = 100,
    durations = 1;
// On each drawn element by Chartist we use the Chartist.Svg API to trigger SMIL animations
chart.on('draw', function (data) {
    seq++;
    if (data.type === 'line') {
        // If the drawn element is a line we do a simple opacity fade in. This could also be achieved using CSS3 animations.
        data.element.animate({
            opacity: {
                // The delay when we like to start the animation
                begin: seq * delays - delays,
                // Duration of the animation
                dur: durations,
                // The value where the animation should start
                from: 0,
                // The value where it should end
                to: 1
            }
        });
    } else if (data.type === 'point') {
        data.element.animate({
            opacity: {
                begin: seq * delays,
                dur: durations,
                from: 0,
                to: 1,
                easing: 'easeOutQuart'
            }
        });
    }
});
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