Example usage for org.opencv.imgproc Subdiv2D Subdiv2D

Introduction

In this page you can find the example usage for org.opencv.imgproc Subdiv2D Subdiv2D.

Prototype

public Subdiv2D() 

Source Link

Usage

From source file:de.hu_berlin.informatik.spws2014.ImagePositionLocator.TriangleImagePositionLocator.java

License:Open Source License

/**
 * Builds ProjectionTriangles from triangulated markers.
 * Requires OpenCV!//from   w  w w .  j ava  2s  . co  m
 */
public void newMarkerAdded(List<Marker> markers) {
    if (markers.size() < 2)
        return;

    if (markers.size() == 2) {
        //Guess third marker
        projs = new ArrayList<ProjectionTriangle>();
        projs.add(new ProjectionTriangle(markers.get(0), markers.get(1)));
    } else {
        Subdiv2D subdiv = new Subdiv2D();
        subdiv.initDelaunay(new Rect(0, 0, imageSize.x, imageSize.y));

        for (Marker m : markers)
            System.out.println("-> " + m.realpoint.longitude + " / " + m.realpoint.latitude);
        for (Marker m : markers)
            subdiv.insert(new Point(m.imgpoint.x, m.imgpoint.y));

        MatOfFloat6 mafloat = new MatOfFloat6();
        subdiv.getTriangleList(mafloat);
        float[] tmparray = mafloat.toArray();

        ArrayList<ProjectionTriangle> tmplist = new ArrayList<ProjectionTriangle>();
        for (int i = 0; i < tmparray.length; i += 6) {
            Marker m1 = findMarkerByPoint(markers, tmparray[i], tmparray[i + 1]);
            Marker m2 = findMarkerByPoint(markers, tmparray[i + 2], tmparray[i + 3]);
            Marker m3 = findMarkerByPoint(markers, tmparray[i + 4], tmparray[i + 5]);

            if (m1 != null && m2 != null && m3 != null)
                tmplist.add(new ProjectionTriangle(m1, m2, m3, settings.getMaxDissimilarityPercent(),
                        settings.getBadTriWeightPenalty(), settings.getMinTriAngleSize()));
        }

        for (ProjectionTriangle mainPt : tmplist) {
            for (ProjectionTriangle subPt : tmplist) {
                if (mainPt != subPt)
                    mainPt.tryAddToProjGroup(subPt);
            }
        }

        projs = tmplist;
    }
}

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