javascript - amcharts.js - 如果值差异太大，则使指导线可见

Question

我需要像附图中那样的东西。 请关注这个fiddle

如您所见，我添加了两条引导线，但它们不可见，因为它的值大于图形值。有什么办法可以让它们可见吗？也许有某种方法可以缩小图表或其他东西。请参阅下面或 jsfiddle 中的代码。 谢谢，

var chart = AmCharts.makeChart("chartdiv", {
    "type": "serial",
    "theme": "light",
    "dataDateFormat": "YYYY-MM-DD HH:NN",
    "dataProvider": [{
        "date": "2012-01-01",
        "value": 8
    }, {
        "date": "2012-01-02",
        "value": 10
    }, {
        "date": "2012-01-03",
        "value": 12
    }, {
        "date": "2012-01-04",
        "value": 14
    }, {
        "date": "2012-01-05",
        "value": 11
    }, {
        "date": "2012-01-06",
        "value": 6
    }, {
        "date": "2012-01-07",
        "value": 7
    }],
    "valueAxes": [{
        "axisAlpha": 0,
        "position": "left",
        "tickLength": 0
    }],
    "graphs": [{
        "bullet": "none",
        "valueField": "value"
    }],
    "categoryField": "date",
    "categoryAxis": {
        "parseDates": true,
        "axisAlpha": 0,
        "gridAlpha": 0.1,
    },
  "guides": [{
    "value": 25,
    "toValue": 25,
    "lineColor": "#CC0000",
    "fillAlpha": 1,
    "fillColor": "#CC0000",
    "label": "critical"
  }, {
    "value": 20,
    "toValue": 20,
    "lineColor": "#CCF000",
    "fillAlpha": 1,
    "fillColor": "#CCF000",
    "label": "normal"
  }]
});

Answer 1

答案是数值轴设置includeGuidesInMinMax .只需将其设置为 true，它将重新计算值轴刻度以包括所有当前指南:

"valueAxes": [{
  "axisAlpha": 0,
  "position": "left",
  "tickLength": 0,
  "includeGuidesInMinMax": true
}]

这是您更新的 fiddle .