这里是问题，我正在尝试编写一个GUI，以在折线图上显示实时数据。
目前为止，我能够让折线图正常工作，但无法将其嵌入GUI中。
使用SceneBuilder，我创建了一个带有LineChart对象的视图，以便将其与生成的图表链接起来。但由于某种原因，在我的mainApp中使用此代码似乎无法正常工作。
public void showSes() {
try {
// Load the fxml file and set into the center of the main layout
FXMLLoader loader = new FXMLLoader();
loader.setLocation(MainApp.class.getResource("view/Session.fxml"));
AnchorPane Session = (AnchorPane) loader.load();
rootLayout.setCenter(Session);
SessionController controller = loader.getController();
controller.setMainApp(this);
controller.initGraph();
} catch (IOException e) {
// Exception gets thrown if the fxml file could not be loaded
e.printStackTrace();
}
}
这只是显示一个空的折线图视图。
我知道图表应该知道，因为我可以使用它来创建场景，并将其显示到GUI中，但我在SceneBuilder中制作的视图还有其他一些字段我想要展示...
有人有想法吗？
FXML
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.text.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.chart.*?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.layout.AnchorPane?>
<AnchorPane prefHeight="900.0" prefWidth="1280.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="gui.view.SessionController">
<children>
<Pane prefHeight="900.0" prefWidth="1280.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
<children>
<LineChart fx:id="linechart" layoutX="29.0" layoutY="194.0" prefHeight="416.0" prefWidth="1222.0" title="Temperature of session">
<xAxis>
<CategoryAxis label="Time (s)" fx:id="xAxis" />
</xAxis>
<yAxis>
<NumberAxis fx:id="yAxis" label="Temperature (°C)" side="LEFT" upperBound="160.0" />
</yAxis>
</LineChart>
<GridPane layoutX="254.0" layoutY="87.0" prefHeight="150.0" prefWidth="771.0">
<columnConstraints>
<ColumnConstraints hgrow="SOMETIMES" maxWidth="274.0" minWidth="10.0" prefWidth="274.0" />
<ColumnConstraints hgrow="SOMETIMES" maxWidth="273.0" minWidth="10.0" prefWidth="273.0" />
<ColumnConstraints hgrow="SOMETIMES" maxWidth="273.0" minWidth="10.0" prefWidth="273.0" />
</columnConstraints>
<rowConstraints>
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
</rowConstraints>
<children>
<Label prefHeight="53.0" prefWidth="153.0" text="Temperature fluid:" GridPane.halignment="CENTER" GridPane.valignment="TOP">
<font>
<Font size="16.0" />
</font>
</Label>
<Label prefHeight="52.0" prefWidth="181.0" text="Temperature vapor:" GridPane.columnIndex="2" GridPane.halignment="CENTER" GridPane.valignment="TOP">
<font>
<Font size="16.0" />
</font>
</Label>
<TextField fx:id="fluidT" editable="false" />
<TextField fx:id="gasT" editable="false" GridPane.columnIndex="2" />
</children>
</GridPane>
<Label layoutX="474.0" layoutY="14.0" text="TempTracker">
<font>
<Font size="50.0" />
</font>
</Label>
<TextArea editable="false" layoutX="190.0" layoutY="638.0" prefHeight="160.0" prefWidth="900.0" promptText="											------Warning log------- " wrapText="true" />
<Button layoutX="540.0" layoutY="808.0" mnemonicParsing="false" onAction="#handleStop" prefHeight="65.0" prefWidth="200.0" text="STOP">
<font>
<Font size="22.0" />
</font>
</Button>
</children></Pane>
</children>
</AnchorPane>
控制器
private static final int MAX_DATA_POINTS = 50;
private String xSeriesData = "";
private XYChart.Series series1;
private XYChart.Series series2;
private ExecutorService executor;
private BlockingQueue<Number> dataQ1 = new ArrayBlockingQueue<Number>(1024);
private BlockingQueue<Number> dataQ2 = new ArrayBlockingQueue<Number>(1024);
@FXML
private CategoryAxis xAxis = new CategoryAxis();
@FXML
final NumberAxis yAxis = new NumberAxis();
@FXML
final LineChart<String, Number> linechart = new LineChart<String, Number>(xAxis, yAxis);
public void initGraph(){
xAxis.setAutoRanging(false);
xAxis.setTickLabelsVisible(false);
xAxis.setTickMarkVisible(false);
NumberAxis yAxis = new NumberAxis();
yAxis.setAutoRanging(true);
//Graph
final LineChart<String, Number> lc = new LineChart<String, Number>(xAxis, yAxis){
@Override
protected void dataItemAdded(Series<String, Number> series, int itemIndex, Data<String, Number> item){}
};
lc.setAnimated(false);
lc.setId("liveLineChart");
lc.setTitle("Animated Line Chart");
//Graph Series
series1 = new XYChart.Series<Number, Number>();
series2 = new XYChart.Series<Number, Number>();
linechart.getData().addAll(series1, series2);
series1.setName("T1");
series2.setName("T2");
fluidT.setText("0000");
gasT.setText("0000");
prepareTimeline();
Runnable con = new Consumer(this);
Thread c = new Thread(con);
c.start();
}