Example usage for java.awt Rectangle getCenterX

Introduction

In this page you can find the example usage for java.awt Rectangle getCenterX.

Prototype

public double getCenterX()

Source Link

Document

Returns the X coordinate of the center of the framing rectangle of the Shape in double precision.

Usage

From source file:ru.runa.wfe.graph.image.figure.AbstractFigure.java

protected AngleInfo getTransitionAngle(double x, double y) {
    Rectangle rect = getRectangle();
    double cx = rect.getCenterX();
    double cy = rect.getCenterY();
    if (x == cx) {
        return y - cy > 0 ? new AngleInfo(Double.MAX_VALUE, AngleInfo.QUARTER_IV)
                : new AngleInfo(Double.MAX_VALUE, AngleInfo.QUARTER_II);
    } else {// w w w  .jav  a2 s. com
        double critAngle = rect.getHeight() / rect.getWidth();
        AngleInfo angleInfo = new AngleInfo();
        angleInfo.setAngle((y - cy) / (x - cx));
        if (Math.abs(angleInfo.getAngle()) > critAngle) {
            if (y - cy > 0) {
                // IV
                angleInfo.setQuarter(AngleInfo.QUARTER_IV);
            } else {
                // II
                angleInfo.setQuarter(AngleInfo.QUARTER_II);
            }
        } else {
            if (x - cx > 0) {
                // I
                angleInfo.setQuarter(AngleInfo.QUARTER_I);
            } else {
                // III
                angleInfo.setQuarter(AngleInfo.QUARTER_III);
            }
        }
        return angleInfo;
    }
}

From source file:ru.runa.wfe.graph.image.figure.AbstractFigure.java

public Point getTransitionPoint(Transition transition, double x, double y) {
    AngleInfo angle = getTransitionAngle(x, y);

    Rectangle r = getRectangle();
    double cx = r.getCenterX();
    double cy = r.getCenterY();

    Line line1 = createBorderLine(angle);
    Line line2 = LineUtils.createLine(new Point((int) cx, (int) cy), angle.getAngle());
    Point intersectionPoint = LineUtils.getIntersectionPoint(line1, line2);
    return intersectionPoint;
}