Examples with SquareNode boofcv.alg.fiducial.calib.squares.SquareNode used on opensource projects

Example 6 with SquareNode

use of boofcv.alg.fiducial.calib.squares.SquareNode in project BoofCV by lessthanoptimal.

the class TestDetectChessboardSquarePoints method isCCW.

private static boolean isCCW(SquareGrid grid) {
    SquareNode a, b, c;
    a = b = c = null;
    for (int i = 0; i < grid.columns; i++) {
        if (grid.get(0, i) != null) {
            if (a == null)
                a = grid.get(0, i);
            else {
                b = grid.get(0, i);
                break;
            }
        }
    }
    if (b == null) {
        for (int i = 0; i < grid.columns; i++) {
            if (grid.get(1, i) != null) {
                b = grid.get(1, i);
            }
        }
    }
    for (int i = 0; i < grid.columns; i++) {
        SquareNode n = grid.get(grid.rows - 1, i);
        if (n != null) {
            c = n;
            break;
        }
    }
    assertTrue(a != null);
    assertTrue(b != null);
    assertTrue(c != null);
    double x0 = b.center.x - a.center.x;
    double y0 = b.center.y - a.center.y;
    double x1 = c.center.x - a.center.x;
    double y1 = c.center.y - a.center.y;
    double angle0 = Math.atan2(y0, x0);
    double angle1 = Math.atan2(y1, x1);
    return UtilAngle.distanceCCW(angle0, angle1) < Math.PI;
}

Example 7 with SquareNode

use of boofcv.alg.fiducial.calib.squares.SquareNode in project BoofCV by lessthanoptimal.

the class TestDetectChessboardSquarePoints method createSquare.

public static SquareNode createSquare(double x, double y, double width) {
    double r = width / 2;
    Polygon2D_F64 poly = new Polygon2D_F64(4);
    poly.get(0).set(-r, -r);
    poly.get(1).set(r, -r);
    poly.get(2).set(r, r);
    poly.get(3).set(-r, r);
    SquareNode square = new SquareNode();
    for (int i = 0; i < 4; i++) {
        poly.get(i).x += x;
        poly.get(i).y += y;
    }
    square.square = poly;
    square.center.set(x, y);
    square.largestSide = width;
    return square;
}

Example 8 with SquareNode

use of boofcv.alg.fiducial.calib.squares.SquareNode in project BoofCV by lessthanoptimal.

the class CommonDetectCalibrationApp method renderGrid.

protected void renderGrid(Graphics2D g2, double scale) {
    List<SquareGrid> grids = getGrids();
    for (int i = 0; i < grids.size(); i++) {
        SquareGrid g = grids.get(i);
        int a = grids.size() == 1 ? 0 : 255 * i / (grids.size() - 1);
        int rgb = a << 16 | (255 - a) << 8;
        g2.setStroke(new BasicStroke(3));
        Color color = new Color(rgb);
        for (int j = 0; j < g.nodes.size(); j++) {
            SquareNode n = g.nodes.get(j);
            if (n == null)
                continue;
            g2.setColor(color);
            VisualizeShapes.drawPolygon(n.square, true, scale, g2);
            drawCornersInside(g2, scale, n.square);
        }
    }
}