Java StackPane.setPrefHeight方法代碼示例

import javafx.scene.layout.StackPane; //導入方法依賴的package包/類
@Override
public void start(Stage stage) throws Exception {
    dialogHeader = new DialogHeader();
    dialogHeader.setTitle("Dialog Title");
    dialogHeader.setHint("Some dialog hint here");


    BorderPane root = new BorderPane();
    root.setTop(dialogHeader);

    StackPane center = new StackPane(new Text("dialog content"));
    center.setPrefHeight(500);

    root.setCenter(center);
    Scene scene = new Scene(root, 500, 600);
    stage.setScene(scene);
    stage.show();
}
 

import javafx.scene.layout.StackPane; //導入方法依賴的package包/類
@Override
public void start(Stage primaryStage) {
    double[] values = new double[]{50,166,200,106,94,211,172,133,132,185,152,131,158,180,172,314,262,160};

    //---->Default graph using plotter<----
    LineGraph graph = new LineGraph(400,200, Theme.TRAFFIC);
    graph.setInterval(20);

    //Populating the graph
    for (double value : values) {
        graph.addValue(value);
    }

    graph.render(LineGraph.Render.ALL);

    StackPane background = new StackPane();
    background.setPrefHeight(300);
    background.setPrefWidth(600);
    background.setStyle("-fx-background-color: radial-gradient(center 50% 50%, radius 100%, #2a367f, #1f2756)");

    background.getChildren().add(graph);
    StackPane.setAlignment(graph, Pos.CENTER);

    StackPane axis = new StackPane();
    axis.setMaxSize(500,50);
    Line divider = new Line(50,0,550,0);
    divider.setStroke(Color.WHITE);
    divider.setOpacity(0.3);
    axis.getChildren().add(divider);
    StackPane.setAlignment(divider,Pos.CENTER);
    Label time1 = new Label("8am");
    Label time2 = new Label("5pm");
    time1.setTextFill(Color.WHITE);
    time2.setTextFill(Color.WHITE);
    time1.setOpacity(0.5);
    time2.setOpacity(0.5);
    time1.setFont(Font.font("Calibri",16));
    time2.setFont(Font.font("Calibri",16));
    axis.getChildren().addAll(time1,time2);
    StackPane.setAlignment(time1,Pos.BOTTOM_LEFT);
    StackPane.setMargin(time1, new Insets(0,0,0,30));
    StackPane.setAlignment(time2, Pos.BOTTOM_RIGHT);
    StackPane.setMargin(time2, new Insets(0,30,0,0));

    background.getChildren().add(axis);
    StackPane.setAlignment(axis, Pos.BOTTOM_CENTER);
    StackPane.setMargin(axis, new Insets(0,0,40,0));

    primaryStage.setScene(new Scene(background));
    primaryStage.setTitle("Traffic");
    primaryStage.show();
}
 

import javafx.scene.layout.StackPane; //導入方法依賴的package包/類
@Override
public void start(Stage stage) throws Exception {
	loadData();
	tree = new J48();
	tree.buildClassifier(data);

	noClassificationChart = buildChart("No Classification (click to add new data)", buildSingleSeries());
	clusteredChart = buildChart("Clustered", buildClusteredSeries());
	realDataChart = buildChart("Real Data (+ Decision Tree classification for new data)", buildLabeledSeries());

	noClassificationChart.setOnMouseClicked(e -> {
		Axis<Number> xAxis = noClassificationChart.getXAxis();
		Axis<Number> yAxis = noClassificationChart.getYAxis();
		Point2D mouseSceneCoords = new Point2D(e.getSceneX(), e.getSceneY());
		double x = xAxis.sceneToLocal(mouseSceneCoords).getX();
		double y = yAxis.sceneToLocal(mouseSceneCoords).getY();
		Number xValue = xAxis.getValueForDisplay(x);
		Number yValue = yAxis.getValueForDisplay(y);
		reloadSeries(xValue, yValue);
	});

	Label lblDecisionTreeTitle = new Label("Decision Tree generated for the Iris dataset:");
	Text txtTree = new Text(tree.toString());
	String graph = tree.graph();
	SwingNode sw = new SwingNode();
	SwingUtilities.invokeLater(() -> {
		TreeVisualizer treeVisualizer = new TreeVisualizer(null, graph, new PlaceNode2());
		treeVisualizer.setPreferredSize(new Dimension(600, 500));
		sw.setContent(treeVisualizer);
	});

	Button btnRestore = new Button("Restore original data");
	Button btnSwapColors = new Button("Swap clustered chart colors");
	StackPane spTree = new StackPane(sw);
	spTree.setPrefWidth(300);
	spTree.setPrefHeight(350);
	VBox vbDecisionTree = new VBox(5, lblDecisionTreeTitle, new Separator(), spTree,
			new HBox(10, btnRestore, btnSwapColors));
	btnRestore.setOnAction(e -> {
		loadData();
		reloadSeries();
	});
	btnSwapColors.setOnAction(e -> swapClusteredChartSeriesColors());
	lblDecisionTreeTitle.setTextFill(Color.DARKRED);
	lblDecisionTreeTitle.setFont(Font.font(Font.getDefault().getFamily(), FontWeight.BOLD, FontPosture.ITALIC, 16));
	txtTree.setTranslateX(100);
	txtTree.setFont(Font.font(Font.getDefault().getFamily(), FontWeight.BOLD, FontPosture.ITALIC, 14));
	txtTree.setLineSpacing(1);
	txtTree.setTextAlignment(TextAlignment.LEFT);
	vbDecisionTree.setTranslateY(20);
	vbDecisionTree.setTranslateX(20);

	GridPane gpRoot = new GridPane();
	gpRoot.add(realDataChart, 0, 0);
	gpRoot.add(clusteredChart, 1, 0);
	gpRoot.add(noClassificationChart, 0, 1);
	gpRoot.add(vbDecisionTree, 1, 1);

	stage.setScene(new Scene(gpRoot));
	stage.setTitle("Íris dataset clustering and visualization");
	stage.show();
}