【发布时间】:2015-05-30 22:56:08
【问题描述】:
这就是交易,我正在尝试编写一个在折线图上显示实时数据的 GUI。 到目前为止一切顺利,我可以让折线图工作但不能进入 GUI。
使用scenebuilder,我用折线图对象制作了一个视图,以便将其链接到我生成的图表。但由于某种原因,这似乎不适用于我的 mainApp 中的这段代码。
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();
}
}
这只是用空折线图显示视图。 我知道图表应该知道,因为我可以用它来创建一个场景,并将其显示到 GUI 中,但是我在 scenebuilder 中创建的视图还有一些我想显示的其他字段......
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();
}
【问题讨论】:
-
错误出现在您未显示的代码/fxml 中。提供mcve。
-
我更新了一下,我想我得到了所有相关的代码
标签: javafx linechart scenebuilder