如何在JavaFX中将线性渐变（颜色）应用于节点？
例
import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.paint.Color;
import javafx.scene.paint.CycleMethod;
import javafx.scene.paint.LinearGradient;
import javafx.scene.paint.Stop;
import javafx.stage.Stage;
import javafx.scene.shape.Circle;
import javafx.scene.shape.Ellipse;
import javafx.scene.shape.Polygon;
import javafx.scene.shape.Rectangle;
public class LinearGradientExample extends Application {
public void start(Stage stage) {
//画一个圆
Circle circle = new Circle(75.0f, 65.0f, 40.0f );
//画一个矩形
Rectangle rect = new Rectangle(150, 30, 100, 65);
//画一个椭圆
Ellipse ellipse = new Ellipse(330, 60, 60, 35);
//绘制多边形
Polygon poly = new Polygon(410, 60, 430, 30, 470, 30, 490, 60, 470, 100, 430, 100 );
//设置线性渐变
Stop[] stops = new Stop[] {
new Stop(0, Color.DARKSLATEBLUE),
new Stop(1, Color.DARKRED)
};
LinearGradient gradient =
new LinearGradient(0, 0, 1, 0, true, CycleMethod.NO_CYCLE, stops);
//设置图案
circle.setFill(gradient);
circle.setStrokeWidth(3);
circle.setStroke(Color.CADETBLUE);
rect.setFill(gradient);
rect.setStrokeWidth(3);
rect.setStroke(Color.CADETBLUE);
ellipse.setFill(gradient);
ellipse.setStrokeWidth(3);
ellipse.setStroke(Color.CADETBLUE);
poly.setFill(gradient);
poly.setStrokeWidth(3);
poly.setStroke(Color.CADETBLUE);
//设置舞台
Group root = new Group(circle, ellipse, rect, poly);
Scene scene = new Scene(root, 600, 150);
stage.setTitle("Linear Gradient");
stage.setScene(scene);
stage.show();
}
public static void main(String args[]){
launch(args);
}
}输出结果