JavaFX 三次曲线 - 芒果文档

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📜 JavaFX 三次曲线

📅 最后修改于: 2020-10-14 01:15:34 🧑 作者: Mango

JavaFX三次曲线

通常，三次曲线是3阶曲线。在JavaFX中，我们只需实例化javafx.scene.shape.CubicCurve类即可创建三次曲线。该类包含表中定义的各种属性以及setter方法。需要设置这些属性，以便根据需要创建三次曲线。

物产

三次曲线类的属性具有以下属性。

Property	Description	Setter method
controlX1	X coordinate of first control point of cubic curve.	setControlX1(Double)
controlX2	X coordinate of second control point of cubic curve	setControlX2(Double)
controlY1	Y coordinate of first control point of cubic curve	setControlY1(Double)
controlY2	Y coordinate of second control point of cubic curve	setControlX1(Double)
endX	X coordinate of end point of cubic curve	setEndX(Double)
endY	Y coordinate of end point of cubic curve.	setEndY(Double)
startX	X coordinate of starting point of cubic curve	setStartX(Double)
startY	Y coordinate of starting point of cubic curve	setStartY(Double)

例：

package application;
import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.effect.DropShadow;
import javafx.scene.paint.Color;
import javafx.scene.shape.CubicCurve;
import javafx.stage.Stage;
public class Shape_Example extends Application {

  @Override
  public void start(Stage primarystage) {
    Group root = new Group();
    primarystage.setTitle("Cubic Curve Example");
    CubicCurve c = new CubicCurve();
    c.setStartX(20);
    c.setStartY(100);
    c.setControlX1(300);
    c.setControlX2(200);
    c.setControlY1(100);
    c.setControlY2(90);
    c.setFill(Color.RED);
    c.setEffect(new DropShadow());
    c.setEndX(100);
    c.setEndY(300);
    root.getChildren().add(c);
    Scene scene = new Scene(root,300,400);
    primarystage.setScene(scene);
    primarystage.show();
  }

  public static void main(String[] args) {
    launch(args);
  }
}