20180208.pdf - Graphics and GUIs CSE 219 Computer Science...

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CSE 219: Computer Science III Stony Brook University Graphics and GUIs
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Canvas A generic image window into which we can draw
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public class CanvasTest extends Application {       public static void main(String[] args) {         launch(args);     }       @Override     public void start(Stage primaryStage) {         primaryStage.setTitle("Drawing Operations Test");         Group root = new Group();         Canvas canvas = new Canvas(300, 250);         GraphicsContext gc = canvas.getGraphicsContext2D();         drawShapes(gc);         root.getChildren().add(canvas);         primaryStage.setScene(new Scene(root));         primaryStage.show();     }
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private void drawShapes(GraphicsContext gc) {         gc.setFill(Color.GREEN);         gc.setStroke(Color.BLUE);         gc.setLineWidth(5);         gc.strokeLine(40, 10, 10, 40);         gc.fillOval(10, 60, 30, 30);         gc.strokeOval(60, 60, 30, 30);         gc.fillRoundRect(110, 60, 30, 30, 10, 10);         gc.strokeRoundRect(160, 60, 30, 30, 10, 10);         gc.fillArc(10, 110, 30, 30, 45, 240, ArcType.OPEN);         gc.fillArc(60, 110, 30, 30, 45, 240, ArcType.CHORD);         gc.fillArc(110, 110, 30, 30, 45, 240, ArcType.ROUND);         gc.strokeArc(10, 160, 30, 30, 45, 240, ArcType.OPEN);         gc.strokeArc(60, 160, 30, 30, 45, 240, ArcType.CHORD);         gc.strokeArc(110, 160, 30, 30, 45, 240, ArcType.ROUND);         gc.fillPolygon(new double[]{10, 40, 10, 40},
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