Example usage for javafx.scene.shape Line getStartX

Introduction

In this page you can find the example usage for javafx.scene.shape Line getStartX.

Prototype

public final double getStartX() 

Source Link

Usage

From source file:de.pixida.logtest.designer.automaton.LineIntersector.java

static Point2D calculateIntersection(final Point2D point, final Point2D vec, final Line line) {
    final Point2D q = new Point2D(line.getStartX(), line.getStartY());
    final Point2D w = new Point2D(line.getEndX(), line.getEndY()).subtract(q);

    // q + t1 * w = point + t2 * vec => q - point = (vec w) (t2 -t1)^T
    final double det = det2x2LineWiseDefined(vec.getX(), w.getX(), vec.getY(), w.getY());
    final double epsilon = 1E-5;
    if (Math.abs(det) < epsilon) {
        return null;
    }/*from   w w  w  .  ja  va  2  s.co  m*/
    final double detInv = 1.0 / det;
    final double t2 = det2x2LineWiseDefined(q.getX() - point.getX(), w.getX(), q.getY() - point.getY(),
            w.getY()) * detInv;

    final Point2D intersection = vec.multiply(t2).add(point);
    return intersection;
}

---

From source file:de.pixida.logtest.designer.automaton.LineIntersector.java

static boolean checkIfPointIsOnTheLine(final Point2D point, final Line line) {
    final Point2D lineStart = new Point2D(line.getStartX(), line.getStartY());
    final Point2D lineEnd = new Point2D(line.getEndX(), line.getEndY());
    final Point2D vecEndToStart = lineEnd.subtract(lineStart);
    final Point2D vecStartToEnd = lineStart.subtract(lineEnd);
    final Point2D vecEndToStartRotated = ROATE_90_DEGREES_COUNTERCLOCKWISE.transform(vecEndToStart);
    final Point2D vecStartToEndRotated = ROATE_90_DEGREES_COUNTERCLOCKWISE.transform(vecStartToEnd);
    if (getPointSideOfLine(point, lineEnd,
            lineEnd.add(vecEndToStartRotated)) == PointPosition.LEFT_OF_THE_LINE) {
        return false;
    }/*  w  w  w  .ja  va  2s . co  m*/
    if (getPointSideOfLine(point, lineStart,
            lineStart.add(vecStartToEndRotated)) == PointPosition.LEFT_OF_THE_LINE) {
        return false;
    }
    return true;
}

---

From source file:Main.java

@Override
public void start(Stage stage) {
    VBox box = new VBox();
    final Scene scene = new Scene(box, 300, 250);
    scene.setFill(null);//ww w.j a  va  2 s. c o  m

    Line line = new Line();
    line.setStartX(0.0f);
    line.setStartY(0.0f);
    line.setEndX(100.0f);
    line.setEndY(100.0f);

    System.out.println(line.getStartX());

    box.getChildren().add(line);

    stage.setScene(scene);
    stage.show();
}

---