使用Highcharts在Gauge图表上显示更多数据-Java 学习之路

我手动绘制Canvas图表，如下所示：

enter image description here

但是，在IE8上，canvas不兼容 .

现在，我想使用HighCharts . 我发现了类似的图表

jsfiddle.net/gh/get/jquery/1.9.1/highslide-software/highcharts.com/tree/master/samples/highcharts/demo/gauge-solid/

如何显示附加值（样品：76.38和93）并绘制针头？

更新：

基本上，Kacper的答案解决了原始问题 . 我只想用更好的视角来改进图表 . 针和这样的额外点的线 .

并且，当当前值达到新点时，我可以定义颜色 . 例如：[0,76.38]为红色，[76.38,93]为绿色，[93,95]为绿色 .

请教我更多 .

enter image description here

1 回答

您正在尝试使用两种Highcharts类型的图表的功能 - solidgauge和gauge .

可以将它们放在一个图表中，并为两个系列设置相同（或几乎相同）的值 .

示例：http://jsfiddle.net/2L1bmhb5/

$(function () {
    $('#container').highcharts({
        chart: {
            plotBackgroundColor: null,
            plotBackgroundImage: null,
            plotBorderWidth: 0,
            plotShadow: false
        },
        title: {
            text: null
        },
        tooltip: {
            enabled: false
        },
        pane: {
            startAngle: -90,
            endAngle: 90,
            background: {
                backgroundColor: '#ccc',
                borderWidth: 0,
                shape: 'arc',
                innerRadius: '60%',
                outerRadius: '95%'
            }
        },
        yAxis: {
            stops: [
                [1, '#f00'] // red
                ],
            min: 0,
            max: 95,
            minorTickLength: 0,
            lineWidth: 0,
            tickPixelInterval: 30,
            tickWidth: 2,
            tickPosition: 'inside',
            tickLength: 5,
            tickColor: '#666',
            tickPositions: [0, 72, 82.68, 95],
            labels: {
                distance: 10
            }
        },
        series: [{
            type: 'gauge',
            data: [14],
            pivot: {
                radius: 0
            },
            dataLabels: {
                y: -5,
                borderWidth: 0,
                style: {
                    fontSize: '20px'
                }
            },
            dial: {
                radius: '85%',
                backgroundColor: 'red',
                borderWidth: 0,
                baseWidth: 3,
                topWidth: 3,
                baseLength: '100%', // of radius
                rearLength: '0%'
            }
        }, {
            type: 'solidgauge',
            fillColor: 'red',
            data: [14.5],
            radius: '95%'
        }]

    },

    // Add some life
    function (chart) {
        if (!chart.renderer.forExport) {
            setInterval(function () {
                var point = chart.series[0].points[0],
                    point2 = chart.series[1].points[0],
                    newVal,
                    inc = Math.round((Math.random() - 0.5) * 20);

                newVal = point.y + inc;
                if (newVal < 0 || newVal > 95) {
                    newVal = point.y - inc;
                }

                point.update(newVal, false);
                point2.update(newVal + 0.5);

            }, 3000);
        }
    });
});

更新：

如果设置yAxis停止，颜色可以流畅地改变 . API：http://api.highcharts.com/highcharts#yAxis.stops

停止比例，如果为0-1，那么如果您希望颜色基于轴值 - 缩放它们 .

http://jsfiddle.net/f6k9eou4/

stops: [
    [0, '#ff0000'], // red
    [76.38/95, '#00ff00'], // green
    [93/95, '#0000ff'] // blue
],

其他方法是使用yAxis minColor和maxColor来改变颜色 . 在这种情况下，轴必须更新，并且系列必须另外与轴绑定 .

http://jsfiddle.net/2L1bmhb5/2/

...
if (newVal < 76.38) {
    color = col[0];
} else if (newVal < 93) {
    color = col[1];
} else {
    color = col[2];
}
chart.yAxis[0].update({
    stops: [
        [1, color]
        ]
},false);

point.update(newVal, false);
point2.update(newVal, false);
chart.series[1].bindAxes(); //solidgauge series
chart.redraw(true);

针（又称拨号）和枢轴可以使用API中描述的选项进行样式设置 .

http://api.highcharts.com/highcharts#series.pivot

http://api.highcharts.com/highcharts#series.dial

pivot: {
    backgroundColor: "#fff",
    borderColor: "#666",
    borderWidth: 5,
    radius: 6
},
dial: {
    radius: '100%',
    backgroundColor: '#666',
    borderWidth: 0,
    baseWidth: 5,
    topWidth: 5,
    baseLength: '100%', // of radius
    rearLength: '0%'
}

http://jsfiddle.net/2L1bmhb5/3/

附加点线是y轴刻度线 . 使用默认选项无法更改所选行或其破折号样式的可见性 . 一种方法是在负载和每次重绘后改变它们的样式 .

function styleTickLines() {
var paths = $('.highcharts-axis > path').splice(0),
    len = paths.length;
// hide first and last
paths[0].setAttribute('opacity', 0);
paths[len - 1].setAttribute('opacity', 0);
// style the rest
for (var i = 1; i < len - 1; i++) {
    paths[i].setAttribute('stroke-dasharray', '3,3');
}
}

http://jsfiddle.net/2L1bmhb5/4/

其他方法是编写Highcharts包装器，它将改变默认行为并启用每个选定刻度的设置样式 .

此时您可能会注意到刻度线被系列图覆盖 . 如果你想避免它，那么将yAxis的zIndex设置为例如7

Finall示例：http://jsfiddle.net/2L1bmhb5/6/

$(function () {
    var col = ['#ff0000', '#00ff00', '#0000ff'],
        color;

    function styleTickLines() {
        var paths = $('.highcharts-axis > path').splice(0),
            len = paths.length;
        // hide first and last
        paths[0].setAttribute('opacity', 0);
        paths[len - 1].setAttribute('opacity', 0);
        // style the rest
        for (var i = 1; i < len - 1; i++) {
            paths[i].setAttribute('stroke-dasharray', '3,3');
        }
    }

    $('#container').highcharts({
        chart: {
            plotBackgroundColor: null,
            plotBackgroundImage: null,
            plotBorderWidth: 0,
            plotShadow: false,
            events: {
                load: styleTickLines,
                redraw: styleTickLines
            }
        },
        title: {
            text: null
        },
        tooltip: {
            enabled: false
        },
        pane: {
            startAngle: -90,
            endAngle: 90,
            background: {
                backgroundColor: '#ccc',
                borderWidth: 0,
                shape: 'arc',
                innerRadius: '60%',
                outerRadius: '100%'
            }
        },
        yAxis: {
            zIndex: 7,
            stops: [
                [1, '#ff0000']
            ],
            min: 0,
            max: 95,
            minorTickLength: 0,
            lineWidth: 0,
            tickPixelInterval: 30,
            tickWidth: 2,
            tickPosition: 'inside',
            tickLength: 46,
            tickColor: '#666',
            tickPositions: [0, 76.38, 93, 95],
            labels: {
                distance: 20
            }
        },
        series: [{
            type: 'solidgauge',
            fillColor: 'red',
            data: [72],
            radius: '100%',
            dataLabels: {
                y: 10,
                borderWidth: 0,
                style: {
                    fontSize: '20px'
                }
            }
        }, {
            type: 'gauge',
            data: [72],
            pivot: {
                backgroundColor: "#fff",
                borderColor: "#666",
                borderWidth: 5,
                radius: 6
            },
            dataLabels: {
                enabled: false
            },
            dial: {
                radius: '105%',
                backgroundColor: '#666',
                borderWidth: 0,
                baseWidth: 5,
                topWidth: 5,
                baseLength: '100%', // of radius
                rearLength: '0%'
            }
        }]

    },

    // Add some life
    function (chart) {
        if (!chart.renderer.forExport) {
            setInterval(function () {
                var point = chart.series[0].points[0],
                    point2 = chart.series[1].points[0],
                    newVal,
                    inc = Math.round((Math.random()) * 10);

                newVal = point.y + inc;
                if (newVal < 0 || newVal > 95) {
                    newVal = point.y - inc;
                }

                if (newVal < 76.38) {
                    color = col[0];
                } else if (newVal < 93) {
                    color = col[1];
                } else {
                    color = col[2];
                }
                chart.yAxis[0].update({
                    stops: [
                        [1, color]
                    ]
                }, false);

                point.update(newVal, false);
                point2.update(newVal, false);
                chart.series[0].bindAxes();
                chart.redraw(true);

            }, 3000);
        }
    });
});

回复于 2024-05-02T20:13:57+08:00

使用Highcharts在Gauge图表上显示更多数据

1 回答

相关问题