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我正在嘗試使用三個Y軸和一個日期X軸繪製圖表。當我解析我的Json時,我有這個數據數組:我無法在JChartFX中顯示多個Y軸和日期X軸圖表中的任何內容
var items = [
{"CoplanarIrradiance": 760,"AirTemperature": 35,"SurfaceTemperature": 32,"Time": "2014-Apr 27T18:15:00"}, {"CoplanarIrradiance": 460,"AirTemperature": 25,"SurfaceTemperature": 31,"Time": "2014-Apr-27T18:30:00"}, {"CoplanarIrradiance": 341,"AirTemperature": 27,"SurfaceTemperature": 32,"Time": "2014-Apr-27T18:45:00"}, {"CoplanarIrradiance" 233,"AirTemperature": 31,"SurfaceTemperature": 32,"Time": "2014-Apr-27T19:00:00"}, ... ]
但是我不會去繪製圖表。它只出現X軸,這是不正確的。 這是我的代碼:
chart1.setDataSource(data);
// Eje de Tiempo (X)
var axis = chart1.getAxisX().getLabelsFormat().setFormat(cfx.AxisFormat.Date);
chart1.getAxisX().getLabelsFormat().setCustomFormat(";MMM-dd");
// Eje de Coplanar Irradiance(Y)
var axis1 = chart1.getAxisY();
axis1.getTitle().setText("Coplanar Irradiance (W/m2)");
axis1.getGrids().getMajor().setVisible(false);
axis1.getDataFormat().setFormat(cfx.AxisFormat.Number);
axis1.getDataFormat().setDecimals(2);
// Eje de Air Temperature (Y)
var axis2 = chart1.getAxisY2();
axis2.getTitle().setText("Air Temperature (C)");
axis2.setPosition(cfx.AxisPosition.Near);
axis2.getGrids().getMajor().setVisible(false);
chart1.getAxisY2().getDataFormat().setFormat(cfx.AxisFormat.Number);
axis2.getDataFormat().setDecimals(2);
// Eje de Surface Temperature (Y)
var axis3 = new cfx.AxisY();
chart1.getAxesY().add(axis3);
axis3.getTitle().setText("Surface Temperature (C)");
axis3.setVisible(true);
axis3.setPosition(cfx.AxisPosition.Far);
axis3.getLabelsFormat().setFormat(cfx.AxisFormat.Number);
axis3.getDataFormat().setDecimals(2);
// Especificamos que hay tres series de datos.
chart1.getData().setSeries(3);
var series1 = chart1.getSeries().getItem(0);
var series2 = chart1.getSeries().getItem(1);
var series3 = chart1.getSeries().getItem(2);
series1.setAxisY(axis1);
series2.setAxisY(axis2);
series3.setAxisY(axis3);
series1.setGallery(cfx.Gallery.Lines);
series2.setGallery(cfx.Gallery.Lines);
series3.setGallery(cfx.Gallery.Lines);
// ----Assign data fields--------
var fields = chart1.getDataSourceSettings().getFields();
var field = new cfx.FieldMap();
var field2 = new cfx.FieldMap();
var field3 = new cfx.FieldMap();
field.setName("CoplanarIrradiance");
field.setUsage(cfx.FieldUsage.Number);
fields.add(field);
field2.setName("AirTemperature");
field2.setUsage(cfx.FieldUsage.Number);
fields.add(field2);
field3.setName("SurfaceTemperature");
field3.setUsage(cfx.FieldUsage.Number);
fields.add(field3);
var legendBox = chart1.getLegendBox();
legendBox.setDock(cfx.DockArea.Bottom);
legendBox.setContentLayout(cfx.ContentLayout.Center);
// ----Set Sample Data------------
var divHolder = document.getElementById('meteo_pop_up_grafica_imagen');
chart1.create(divHolder);
這是結果的圖表:
問題是什麼?數據集是正確的。
在此先感謝
我應該如何在時間(hh:mm:ss)格式中設置Y或X軸的最大值? – Kentot