您好我在AmCharts中使用Trend Line,当我更改没有日期的值时,它不会显示反之亦然。
这是我的代码:
function drawGraph(amYear) {
var trendLinesData = trendLines(chartData);
// AmCharts.ready(function () {
// SERIAL CHART
chart = new AmCharts.AmSerialChart();
chart.dataProvider = chartData;
chart.dataDateFormat = "YYYY-MM";
chart.categoryField = "field";
chart.startDuration = 2;
// AXES
// category
var categoryAxis = chart.categoryAxis;
categoryAxis.parseDates = false; // as our data is date-based, we set parseDates to true
categoryAxis.minPeriod = "MM"; // our data is daily, so we set minPeriod to DD
categoryAxis.gridAlpha = 0.1;
categoryAxis.minorGridAlpha = 0.1;
categoryAxis.axisAlpha = 0;
categoryAxis.minorGridEnabled = true;
categoryAxis.inside = true;
// value
var valueAxis = new AmCharts.ValueAxis();
valueAxis.title = "Total";
valueAxis.tickLength = 0;
valueAxis.axisAlpha = 0;
valueAxis.showFirstLabel = false;
valueAxis.showLastLabel = false;
chart.addValueAxis(valueAxis);
// GRAPH
var graph = new AmCharts.AmGraph();
graph.dashLength = 5;
graph.lineColor = "#3498db";
graph.valueField = "value";
graph.lineThickness = 1;
chart.addGraph(graph);
// SCROLLBAR
var chartScrollbar = new AmCharts.ChartScrollbar();
chart.addChartScrollbar(chartScrollbar);
// TREND LINES
// first trend line
var trendLine = new AmCharts.TrendLine();
trendLine.initialValue = 5;
trendLine.initialXValue = 5;
trendLine.finalValue = 30;
trendLine.finalXValue = 40;
trendLine.lineColor = "#000";
chart.addTrendLine(trendLine);
// WRITE
chart.write("datachart");
// });
}
我已经尝试了另一个属性,我调用了chart.validateNow()但它仍然不起作用。 如何解决?
答案 0 :(得分:0)
在非基于日期的序列图表中(根据您发布的代码似乎正在使用),您需要使用initialCategory
和finalCategory
。
他们需要完全按照您在数据类别字段中包含的字符串(在您的情况下为field
)。
initialXValue
和finalXValue
仅与XY图表相关。