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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