Example usage for java.awt.geom Path2D.Double contains

Introduction

In this page you can find the example usage for java.awt.geom Path2D.Double contains.

Prototype

public final boolean contains(Rectangle2D r) 

Source Link

Document

This method object may conservatively return false in cases where the specified rectangular area intersects a segment of the path, but that segment does not represent a boundary between the interior and exterior of the path.

Usage

From source file:projects.wdlf47tuc.ProcessAllSwathcal.java

/**
 * Plots the CMD using the existing dataset. Used whenever chart annotations change, without the
 * underlying plot data changing. This method identifies all sources lying within the boxed region
 * and loads them into the secondary list {@link #boxedSources}.
 * /*from w  w  w .j  a v a2s .  c o m*/
 * @param allSources
 *    The {@link Source}s to plot
 * @return
 *    A JFreeChart presenting the colour-magnitude diagram for the current selection criteria and colours.
 */
private JFreeChart plotCmd() {

    XYSeries outside = new XYSeries("Outside");
    XYSeries inside = new XYSeries("Inside");

    // Use a Path2D.Double instance to determine polygon intersection
    Path2D.Double path = new Path2D.Double();
    boxedSources.clear();

    boolean performBoxSelection = (points.size() > 2);

    if (performBoxSelection) {
        // Initialise Path2D object
        path.moveTo(points.get(0)[0], points.get(0)[1]);
        for (double[] point : points) {
            path.lineTo(point[0], point[1]);
        }
    }

    for (Source source : selectedSources) {
        double magnitude = source.getMag(magFilter);
        double col1 = source.getMag(col1Filter);
        double col2 = source.getMag(col2Filter);

        double x = col1 - col2;
        double y = magnitude;

        if (performBoxSelection) {
            Point2D.Double point = new Point2D.Double(x, y);
            if (path.contains(point)) {
                inside.add(x, y);
                boxedSources.add(source);
            } else {
                outside.add(x, y);
            }
        } else {
            outside.add(x, y);
        }
    }

    final XYSeriesCollection data = new XYSeriesCollection();
    data.addSeries(outside);
    data.addSeries(inside);

    XYLineAndShapeRenderer renderer = new XYLineAndShapeRenderer();
    renderer.setSeriesLinesVisible(0, false);
    renderer.setSeriesShapesVisible(0, true);
    renderer.setSeriesShape(0, new Ellipse2D.Float(-0.5f, -0.5f, 1, 1));
    renderer.setSeriesPaint(0, ChartColor.BLACK);

    renderer.setSeriesLinesVisible(1, false);
    renderer.setSeriesShapesVisible(1, true);
    renderer.setSeriesShape(1, new Ellipse2D.Float(-0.5f, -0.5f, 1, 1));
    renderer.setSeriesPaint(1, ChartColor.RED);

    NumberAxis xAxis = new NumberAxis(col1Filter.toString() + " - " + col2Filter.toString());
    xAxis.setRange(getXRange());

    NumberAxis yAxis = new NumberAxis(magFilter.toString());
    yAxis.setRange(getYRange());
    yAxis.setInverted(true);

    // Configure plot
    XYPlot xyplot = new XYPlot(data, xAxis, yAxis, renderer);
    xyplot.setBackgroundPaint(Color.lightGray);
    xyplot.setDomainGridlinePaint(Color.white);
    xyplot.setDomainGridlinesVisible(true);
    xyplot.setRangeGridlinePaint(Color.white);

    // Specify selection box, if points have been specified
    if (!points.isEmpty()) {

        double[] coords = new double[points.size() * 2];

        for (int i = 0; i < points.size(); i++) {
            double[] point = points.get(i);
            coords[2 * i + 0] = point[0];
            coords[2 * i + 1] = point[1];
        }
        XYPolygonAnnotation box = new XYPolygonAnnotation(coords, new BasicStroke(2.0f), Color.BLUE);
        xyplot.addAnnotation(box);
    }

    // Configure chart
    JFreeChart chart = new JFreeChart("47 Tuc CMD", xyplot);
    chart.setBackgroundPaint(Color.white);
    chart.setTitle("47 Tuc colour-magnitude diagram");
    chart.removeLegend();

    return chart;
}

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