Examples with Point2D java.awt.geom.Point2D used on opensource projects

Example 56 with Point2D

use of java.awt.geom.Point2D in project beast-mcmc by beast-dev.

the class DiscretizedLocationOperator method randomizeNodes.

public void randomizeNodes() {
    List<Point2D> listLocations = new ArrayList<Point2D>();
    listLocations.addAll(allLocations);
    for (int i = 0; i < treeModel.getInternalNodeCount(); i++) {
        NodeRef node = treeModel.getInternalNode(i);
        double[] trait = treeModel.getMultivariateNodeTrait(node, traitName);
        Point2D newPt = listLocations.get(MathUtils.nextInt(listLocations.size()));
        trait[0] = newPt.getX();
        trait[1] = newPt.getY();
        recursivelySetTrait(node, trait, null);
    //            treeModel.setMultivariateTrait(node, traitName, trait);            
    }
    System.err.println("Done with randomization");
//        System.exit(-1);
}

Example 57 with Point2D

use of java.awt.geom.Point2D in project beast-mcmc by beast-dev.

the class BrownianBridge1D method divideConquerBrownianBridge.

public static int divideConquerBrownianBridge(double D, int point0, List<Point2D> points, int depth, SpaceTimeRejector1D rejector) {
    if (depth > 0) {
        Point2D p0 = points.get(point0);
        Point2D p1 = points.get(point0 + 1);
        double t0 = p0.getX();
        double y0 = p0.getY();
        double t1 = p1.getX();
        double y1 = p1.getY();
        double tm = (t1 - t0) / 2.0 + t0;
        double mean = y0 + 0.5 * (y1 - y0);
        double stdev = Math.sqrt(D * (t1 - t0) / 4.0);
        double xm = MathUtils.nextGaussian() * stdev + mean;
        if (rejector != null) {
            while (rejector.reject(tm, xm)) {
                xm = MathUtils.nextGaussian() * stdev + mean;
            }
        }
        points.add(point0 + 1, new Point2D.Double(tm, xm));
        int endPoint = divideConquerBrownianBridge(D, point0, points, depth - 1, rejector);
        return divideConquerBrownianBridge(D, endPoint, points, depth - 1, rejector);
    } else
        return point0 + 1;
}

Example 58 with Point2D

use of java.awt.geom.Point2D in project beast-mcmc by beast-dev.

the class AbstractPolygon2D method getCentroid.

public Point2D getCentroid() {
    //        rescaleToPositiveCoordinates();
    Point2D centroid = new Point2D.Double();
    double area = calculateArea();
    double cx = 0, cy = 0;
    double factor;
    //we can implement it like this because the polygon is closed (point2D.get(0) = point2D.get(length + 1)
    for (int i = 0; i < length; i++) {
        factor = (x[i] * y[i + 1] - x[i + 1] * y[i]);
        cx += (x[i] * x[i + 1]) * factor;
        cy += (y[i] * y[i + 1]) * factor;
    }
    double constant = 1 / (area * 6);
    cx *= constant;
    cy *= constant;
    centroid.setLocation(cx, cy);
    System.out.println("centroid = " + cx + "," + cy);
    return centroid;
}

Example 59 with Point2D

use of java.awt.geom.Point2D in project beast-mcmc by beast-dev.

the class CartogramMapping method map.

public Point2D map(Point2D inPt) {
    if (!boundingBox.contains(inPt))
        return null;
    if (!loaded)
        return inPt;
    final double offsetX = (inPt.getX() - boundingBox.getMinX()) / dX;
    final double offsetY = (inPt.getY() - boundingBox.getMinY()) / dY;
    final int iX = (int) offsetX;
    final int iY = (int) offsetY;
    final double rX = offsetX - iX;
    final double rY = offsetY - iY;
    assert (rX >= 0 && rY < 1.0 && rY >= 0 && rY < 1.0);
    final Point2D gridiXiY = gridPt[iX][iY];
    final Point2D gridiX1iY = gridPt[iX + 1][iY];
    final Point2D gridiXiY1 = gridPt[iX][iY + 1];
    final Point2D gridiX1iY1 = gridPt[iX + 1][iY + 1];
    final double outX = (1 - rX) * (1 - rY) * gridiXiY.getX() + rX * (1 - rY) * gridiX1iY.getX() + (1 - rX) * rY * gridiXiY1.getX() + rX * rY * gridiX1iY1.getX();
    final double outY = (1 - rX) * (1 - rY) * gridiXiY.getY() + rX * (1 - rY) * gridiX1iY.getY() + (1 - rX) * rY * gridiXiY1.getY() + rX * rY * gridiX1iY1.getY();
    return new Point2D.Double(outX, outY);
}

Example 60 with Point2D

use of java.awt.geom.Point2D in project beast-mcmc by beast-dev.

the class CartogramMapping method main.

/*
     * This should replicate the behavoir of Newman's 'interp' program
     */
public static void main(String[] args) {
    int gridXSize = Integer.parseInt(args[0]);
    int gridYSize = Integer.parseInt(args[1]);
    String fileName = args[2];
    CartogramMapping mapping = new CartogramMapping(gridXSize, gridYSize, new Rectangle2D.Double(0, 0, gridXSize, gridYSize));
    try {
        mapping.readCartogramOutput(fileName);
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        while (true) {
            String line = reader.readLine();
            if (line == null) {
                // end of file
                break;
            } else if (line.length() == 0) {
                break;
            } else {
                // not a blank line
                StringTokenizer st = new StringTokenizer(line);
                Point2D inPt = new Point2D.Double(Double.parseDouble(st.nextToken()), Double.parseDouble(st.nextToken()));
                System.out.println(mapping.map(inPt));
            }
        }
    } catch (IOException e) {
        System.err.println(e);
        System.exit(-1);
    }
}