Example usage for java.awt.geom Rectangle2D.Double getCenterX

Introduction

In this page you can find the example usage for java.awt.geom Rectangle2D.Double 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:mulavito.gui.components.LayerViewer.java

public static void autoZoomViewer(VisualizationViewer<?, ?> vv, LayerViewer<?, ?> home, Directions direction) {
    if (vv == null || home == null)
        return;//from  w  w w  .ja va2 s  .  c  o  m

    // reset transforms
    MutableTransformer layoutTrans = vv.getRenderContext().getMultiLayerTransformer()
            .getTransformer(edu.uci.ics.jung.visualization.Layer.LAYOUT);
    layoutTrans.setToIdentity();
    MutableTransformer viewTrans = vv.getRenderContext().getMultiLayerTransformer()
            .getTransformer(edu.uci.ics.jung.visualization.Layer.VIEW);
    viewTrans.setToIdentity();

    Dimension dim = vv.getSize();
    Rectangle2D.Double graphBounds = home.getGraphBoundsCache();

    CrossoverScalingControl scaler = new CrossoverScalingControl();

    // Scale using crossover scaler, so vertices will not grow
    // larger than they are in original
    double factor = Double.POSITIVE_INFINITY;

    if (direction == Directions.HORIZONTAL || direction == Directions.BOTH)
        factor = dim.getWidth() / graphBounds.width;
    if (direction == Directions.VERTICAL || direction == Directions.BOTH || Double.isInfinite(factor))
        factor = Math.min(factor, dim.getHeight() / graphBounds.height);
    scaler.scale(vv, (float) factor, vv.getCenter());

    // Translate center of graph to center of vv.
    Point2D lvc = vv.getRenderContext().getMultiLayerTransformer().inverseTransform(vv.getCenter());
    double dx = (lvc.getX() - graphBounds.getCenterX());
    double dy = (lvc.getY() - graphBounds.getCenterY());
    layoutTrans.translate(dx, dy);
}

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From source file:org.jfree.chart.demo.DrawStringPanel.java

public void paintComponent(Graphics g) {
    super.paintComponent(g);
    Graphics2D graphics2d = (Graphics2D) g;
    Dimension dimension = getSize();
    Insets insets = getInsets();/*from ww w  .  j a v  a2  s .  co  m*/
    java.awt.geom.Rectangle2D.Double double1 = new java.awt.geom.Rectangle2D.Double(insets.left, insets.top,
            dimension.getWidth() - (double) insets.left - (double) insets.right,
            dimension.getHeight() - (double) insets.top - (double) insets.bottom);
    double d = double1.getCenterX();
    double d1 = double1.getCenterY();
    java.awt.geom.Line2D.Double double2 = new java.awt.geom.Line2D.Double(d - 2D, d1 + 2D, d + 2D, d1 - 2D);
    java.awt.geom.Line2D.Double double3 = new java.awt.geom.Line2D.Double(d - 2D, d1 - 2D, d + 2D, d1 + 2D);
    graphics2d.setPaint(Color.red);
    graphics2d.draw(double2);
    graphics2d.draw(double3);
    graphics2d.setFont(font);
    graphics2d.setPaint(Color.black);
    if (rotate)
        TextUtilities.drawRotatedString(text, graphics2d, (float) d, (float) d1, anchor, angle, rotationAnchor);
    else
        TextUtilities.drawAlignedString(text, graphics2d, (float) d, (float) d1, anchor);
}

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