此代码绘制一个LineChart，点击“添加系列”按钮，它会添加一个ScatterChart
看起来一切正常但只是向左/向右移动场景或向上/向下移动（鼠标左键单击并拖动）X，Y轴和图表都被移位。
如何修复此代码以便始终获得轴重叠以及两个图表？
感谢。
import java.util.Set;
import javafx.application.Application;
import javafx.beans.property.SimpleDoubleProperty;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Side;
import javafx.scene.Group;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.XYChart;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.Node;
import javafx.scene.chart.*;
import javafx.scene.control.Button;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.StackPane;
public class RescalingSeries extends Application {
StackPane mainGraphStackPane = null;
Button btnAdd;
BorderPane pane;
XYChart.Series series1 = new XYChart.Series();
SimpleDoubleProperty rectinitX = new SimpleDoubleProperty();
SimpleDoubleProperty rectinitY = new SimpleDoubleProperty();
protected static Axis _duplicateAxis(Axis axis, Axis result) {
result.setAnimated(axis.animatedProperty().get());
result.setAutoRanging(axis.isAutoRanging());
result.setLabel(axis.getLabel());
result.setSide(axis.getSide());
result.setTickLabelFill(axis.getTickLabelFill());
result.setTickLabelFont(axis.getTickLabelFont());
result.setTickLabelGap(axis.getTickLabelGap());
result.setTickLength(axis.getTickLength());
return result;
}
protected static ValueAxis _duplicateValueAxis(ValueAxis axis, ValueAxis result) {
_duplicateAxis(axis, result);
result.setLowerBound(axis.getLowerBound());
result.setUpperBound(axis.getUpperBound());
result.setMinorTickCount(axis.getMinorTickCount());
result.setMinorTickLength(axis.getMinorTickLength());
result.setTickLabelFormatter(axis.getTickLabelFormatter());
return result;
}
/**
* Duplicate a number axis.
* @param axis The source axis.
* @return A {@code NumberAxis}, never {@code null}.
*/
public static NumberAxis duplicateNumberAxis(NumberAxis axis) {
NumberAxis result = new NumberAxis();
_duplicateValueAxis(axis, result);
result.setTickUnit(axis.getTickUnit());
result.setForceZeroInRange(axis.isForceZeroInRange());
return result;
}
/**
* Duplicate a category axis.
* @param axis The source axis.
* @return A {@code CategoryAxis}, never {@code null}.
*/
public static CategoryAxis duplicateCategoryAxis(CategoryAxis axis) {
CategoryAxis result = new CategoryAxis(axis.getCategories());
_duplicateAxis(axis, result);
result.setStartMargin(axis.getStartMargin());
result.setEndMargin(axis.getEndMargin());
result.setGapStartAndEnd(axis.gapStartAndEndProperty().get());
return result;
}
@Override
public void start(Stage stage) {
final NumberAxis xAxisLC = new NumberAxis(1, 12, 1);
final NumberAxis yAxisLC = new NumberAxis(0.53000, 0.53910, 0.0005);
yAxisLC.setSide(Side.RIGHT);
yAxisLC.setTickLabelFormatter(new NumberAxis.DefaultFormatter(yAxisLC) {
@Override
public String toString(Number object) {
return String.format("%7.5f", object);
}
});
final LineChart<Number, Number> lineChart = new LineChart<>(xAxisLC, yAxisLC);
lineChart.setCreateSymbols(false);
lineChart.setAlternativeRowFillVisible(false);
lineChart.setAnimated(true);
lineChart.setLegendVisible(false);
series1.getData().add(new XYChart.Data(1, 0.53185));
series1.getData().add(new XYChart.Data(2, 0.532235));
series1.getData().add(new XYChart.Data(3, 0.53234));
series1.getData().add(new XYChart.Data(4, 0.538765));
series1.getData().add(new XYChart.Data(5, 0.53442));
series1.getData().add(new XYChart.Data(6, 0.534658));
series1.getData().add(new XYChart.Data(7, 0.53023));
series1.getData().add(new XYChart.Data(8, 0.53001));
series1.getData().add(new XYChart.Data(9, 0.53589));
series1.getData().add(new XYChart.Data(10, 0.53476));
series1.getData().add(new XYChart.Data(11, 0.530123));
series1.getData().add(new XYChart.Data(12, 0.531035));
pane = new BorderPane();
pane.setCenter(lineChart);
mainGraphStackPane = new StackPane();
mainGraphStackPane.getChildren().add(pane);
Scene scene = new Scene(mainGraphStackPane, 800, 600);
lineChart.getData().addAll(series1);
stage.setScene(scene);
scene.setOnMouseClicked(mouseHandler);
scene.setOnMouseDragged(mouseHandler);
scene.setOnMouseEntered(mouseHandler);
scene.setOnMouseExited(mouseHandler);
scene.setOnMouseMoved(mouseHandler);
scene.setOnMousePressed(mouseHandler);
scene.setOnMouseReleased(mouseHandler);
Group root = new Group();
btnAdd = new Button();
btnAdd.setText("Add serie");
root.getChildren().add(btnAdd);
pane.getChildren().add(root);
btnAdd.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
NumberAxis xAxisBC = duplicateNumberAxis(xAxisLC);
NumberAxis yAxisBC = duplicateNumberAxis(yAxisLC);
ScatterChart<Number, Number> scatterChart = new ScatterChart<>(xAxisBC, yAxisBC);
scatterChart.setAlternativeRowFillVisible(false);
scatterChart.setAnimated(true);
scatterChart.setLegendVisible(false);
XYChart.Series series2 = new XYChart.Series();
series2.getData().add(new XYChart.Data(1, 0.53185));
series2.getData().add(new XYChart.Data(2, 0.532235));
series2.getData().add(new XYChart.Data(3, 0.53234));
series2.getData().add(new XYChart.Data(4, 0.538765));
series2.getData().add(new XYChart.Data(5, 0.53442));
series2.getData().add(new XYChart.Data(6, 0.534658));
series2.getData().add(new XYChart.Data(7, 0.53023));
series2.getData().add(new XYChart.Data(8, 0.53001));
series2.getData().add(new XYChart.Data(9, 0.53589));
series2.getData().add(new XYChart.Data(10, 0.53476));
series2.getData().add(new XYChart.Data(11, 0.530123));
series2.getData().add(new XYChart.Data(12, 0.531035));
scatterChart.getData().addAll(series2);
Set<Node> chartNode = scatterChart.lookupAll(".chart-plot-background");
for(final Node chr : chartNode){
chr.setStyle("-fx-background-color: transparent;");
}
chartNode = lineChart.lookupAll(".chart-plot-background");
for(final Node chr : chartNode){
chr.setStyle("-fx-background-color: transparent");
}
mainGraphStackPane.getChildren().add(scatterChart);
xAxisBC.lowerBoundProperty().bind(xAxisLC.lowerBoundProperty());
yAxisBC.lowerBoundProperty().bind(yAxisLC.lowerBoundProperty());
}
});
stage.show();
}
EventHandler<MouseEvent> mouseHandler = new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent mouseEvent) {
boolean XScaling=false;
boolean YScaling=false;
if (mouseEvent.getEventType() == MouseEvent.MOUSE_DRAGGED || mouseEvent.getEventType() == MouseEvent.MOUSE_MOVED ){
LineChart<Number, Number> lineChart = (LineChart<Number, Number>) pane.getCenter();
NumberAxis yAxis = (NumberAxis) lineChart.getYAxis();
NumberAxis xAxis = (NumberAxis) lineChart.getXAxis();
double Tgap = xAxis.getWidth()/(xAxis.getUpperBound() - xAxis.getLowerBound());
double newXlower=xAxis.getLowerBound(), newXupper=xAxis.getUpperBound();
double newYlower=yAxis.getLowerBound(), newYupper=yAxis.getUpperBound();
double xAxisShift = xAxis.localToScene(0, 0).getX();
double yAxisShift = yAxis.localToScene(0, 0).getY();
double yAxisStep=yAxis.getHeight()/(yAxis.getUpperBound()-yAxis.getLowerBound());
double CurrentPrice=yAxis.getUpperBound()-((mouseEvent.getY()-yAxisShift)/yAxisStep);
double Delta=0.3;
if(mouseEvent.getEventType() == MouseEvent.MOUSE_DRAGGED && mouseEvent.getX()<xAxisShift+yAxis.getHeight() && mouseEvent.getY()<yAxisShift+yAxis.getHeight() && (XScaling==false || YScaling==false)){
//==================================================== X-Axis Moving ==================================
if(rectinitX.get() < mouseEvent.getX()){
newXlower=xAxis.getLowerBound()-Delta;
newXupper=xAxis.getUpperBound()-Delta;
}
else if(rectinitX.get() > mouseEvent.getX()){
newXlower=xAxis.getLowerBound()+Delta;
newXupper=xAxis.getUpperBound()+Delta;
}
xAxis.setLowerBound( newXlower );
xAxis.setUpperBound( newXupper );
//===================================================== Y-Axis Moving ====================================
if(rectinitY.get() < mouseEvent.getY()){
newYlower=yAxis.getLowerBound()+Delta/1000;
newYupper=yAxis.getUpperBound()+Delta/1000;
}
else if(rectinitY.get() > mouseEvent.getY()){
newYlower=yAxis.getLowerBound()-Delta/1000;
newYupper=yAxis.getUpperBound()-Delta/1000;
}
yAxis.setLowerBound(newYlower);
yAxis.setUpperBound(newYupper);
}
//----------------------------- Re-Scale the X-Axis when dragging below it ---------------------------------
else if(mouseEvent.getEventType() == MouseEvent.MOUSE_DRAGGED && mouseEvent.getY()>yAxisShift+yAxis.getHeight() ){
if(rectinitX.get() < mouseEvent.getX()){
newXlower=xAxis.getLowerBound()+Delta;
newXupper=xAxis.getUpperBound()-Delta;
}
else if(rectinitX.get() > mouseEvent.getX()){
newXlower=xAxis.getLowerBound()-Delta;
newXupper=xAxis.getUpperBound()+Delta;
}
xAxis.setLowerBound( newXlower );
xAxis.setUpperBound( newXupper );
}
//--------------------------------- Re-Scale the Y-Axis when dragging to the left of it --------------------------
else if(mouseEvent.getEventType() == MouseEvent.MOUSE_DRAGGED && mouseEvent.getX()> (xAxisShift + xAxis.getWidth())){
if(rectinitY.get() < mouseEvent.getY()){
newYlower=yAxis.getLowerBound()-Delta/1000;
newYupper=yAxis.getUpperBound()+Delta/1000;
}
else if(rectinitY.get() > mouseEvent.getY()){
newYlower=yAxis.getLowerBound()+Delta/1000;
newYupper=yAxis.getUpperBound()-Delta/1000;
}
yAxis.setLowerBound(newYlower);
yAxis.setUpperBound(newYupper);
}
rectinitX.set(mouseEvent.getX());
rectinitY.set(mouseEvent.getY());
if(mouseEvent.getEventType() == MouseEvent.MOUSE_MOVED && mouseEvent.getY()>yAxisShift && mouseEvent.getY()<yAxisShift+yAxis.getHeight() && mouseEvent.getX()>xAxisShift && mouseEvent.getX()<xAxisShift+xAxis.getWidth()){
double XX=((mouseEvent.getX() - xAxisShift) / Tgap) + xAxis.getLowerBound();
double YY=CurrentPrice;
series1.setName(String.format("%.2g%n",XX) + ", " + String.format("%.4g%n",YY));
}
}
}
};
public static void main(String[] args) {
launch(args);
}
}
答案 0 :(得分：0)
找到解决方案：我错过了这部分
xAxisBC.upperBoundProperty().bind(xAxisLC.upperBoundProperty());
yAxisBC.upperBoundProperty().bind(yAxisLC.upperBoundProperty());