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There is a newer version: 8.0.0

package org.opencv.core;

import java.util.Arrays;
import java.util.List;

public class MatOfPoint2f extends Mat {
    // 32FC2
    private static final int _depth = CvType.CV_32F;
    private static final int _channels = 2;

    public MatOfPoint2f() {
        super();
    }

    protected MatOfPoint2f(long addr) {
        super(addr);
        if( !empty() && checkVector(_channels, _depth) < 0 )
            throw new IllegalArgumentException("Incompatible Mat");
        //FIXME: do we need release() here?
    }

    public static MatOfPoint2f fromNativeAddr(long addr) {
        return new MatOfPoint2f(addr);
    }

    public MatOfPoint2f(Mat m) {
        super(m, Range.all());
        if( !empty() && checkVector(_channels, _depth) < 0 )
            throw new IllegalArgumentException("Incompatible Mat");
        //FIXME: do we need release() here?
    }

    public MatOfPoint2f(Point...a) {
        super();
        fromArray(a);
    }

    public void alloc(int elemNumber) {
        if(elemNumber>0)
            super.create(elemNumber, 1, CvType.makeType(_depth, _channels));
    }

    public void fromArray(Point...a) {
        if(a==null || a.length==0)
            return;
        int num = a.length;
        alloc(num);
        float buff[] = new float[num * _channels];
        for(int i=0; i lp) {
        Point ap[] = lp.toArray(new Point[0]);
        fromArray(ap);
    }

    public List toList() {
        Point[] ap = toArray();
        return Arrays.asList(ap);
    }
}