解釋 JavaFX 中 2D 形狀的 Stroke Line Cap 屬性
Stroke Line Cap 指定/定義線條的結束端裝飾樣式。可以使用 javafx.scene.shape.Shape 類的 setStrokeLineCap() 方法設定 Stroke Line Cap 值。
Java FX 支援三種筆劃線帽,由名為 StrokeLineCap 的列舉的三個常量表示,它們是:-
BUTT - 該型別結束未閉合的子路徑,沒有任何裝飾。
ROUND - 該型別用圓形投影來結束未閉合的路徑。
SQUARE - 該型別用方形投影來結束未閉合的路徑。
示例
import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.paint.Color;
import javafx.scene.shape.Line;
import javafx.scene.shape.StrokeLineCap;
import javafx.scene.shape.StrokeType;
import javafx.scene.text.Font;
import javafx.scene.text.FontPosture;
import javafx.scene.text.FontWeight;
import javafx.scene.text.Text;
import javafx.stage.Stage;
public class StrokeLineCapExample extends Application {
public void start(Stage stage) {
Font font = Font.font("verdana", FontWeight.BOLD, FontPosture.REGULAR, 12);
Text label1 = new Text("Normal Line");
label1.setFont(font);
label1.setX(260.0);
label1.setY(90.0);
Line line1 = new Line(250.0, 50.0, 350.0, 50.0);
Text label2 = new Text("Line Cap: BUTT");
label2.setFont(font);
label2.setX(50.0);
label2.setY(235.0);
Line line2 = new Line(50.0, 200.0, 150.0, 200.0);
line2.setStroke(Color.DARKBLUE);
line2.setStrokeWidth(10.0);
line2.setStrokeType(StrokeType.CENTERED);
line2.setStrokeLineCap(StrokeLineCap.BUTT);
Text label3 = new Text("Line Cap: SQUARE");
label3.setFont(font);
label3.setX(245.0);
label3.setY(235.0);
Line line3 = new Line(250.0, 200.0, 350.0, 200.0);
line3.setStrokeWidth(10.0);
line3.setStroke(Color.DARKBLUE);
line3.setStrokeLineCap(StrokeLineCap.SQUARE);
Text label4 = new Text("Line Cap: ROUND");
label4.setFont(font);
label4.setX(440.0);
label4.setY(235.0);
Line line4 = new Line(440, 200.0, 540.0, 200.0);
line4.setStrokeWidth(10.0);
line4.setStroke(Color.DARKBLUE);
line4.setStrokeLineCap(StrokeLineCap.ROUND);
//Creating a Group object
Group root = new Group(label1, label2, label3, label4, line1, line2, line3, line4);
//Creating a scene object
Scene scene = new Scene(root, 595, 310);
//Setting title to the Stage
stage.setTitle("Stroke Line Cap Example");
//Adding scene to the stage
stage.setScene(scene);
//Displaying the contents of the stage
stage.show();
}
public static void main(String args[]){
launch(args);
}
}輸出

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