public static Mat vector_DMatch_to_Mat(List <DMatch> matches)
{
Mat res;
int count = (matches != null) ? matches.Count : 0;
if (count > 0)
{
res = new Mat(count, 1, CvType.CV_64FC4);
double[] buff = new double[count * 4];
for (int i = 0; i < count; i++)
{
DMatch m = matches[i];
buff[4 * i] = m.queryIdx;
buff[4 * i + 1] = m.trainIdx;
buff[4 * i + 2] = m.imgIdx;
buff[4 * i + 3] = m.distance;
}
res.put(0, 0, buff);
}
else
{
res = new Mat();
}
return(res);
}
public DMatch[] toArray() {
int num = (int) total();
DMatch[] a = new DMatch[num];
if(num == 0)
return a;
float[] buff = new float[num * _channels];
get(0, 0, buff); //TODO: check ret val!
for(int i=0; i<num; i++)
a[i] = new DMatch((int) buff[_channels*i+0], (int) buff[_channels*i+1], (int) buff[_channels*i+2], buff[_channels*i+3]);
return a;
}
public void fromArray(params DMatch[] 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<num; i++) {
DMatch m = a[i];
buff[_channels*i+0] = m.queryIdx;
buff[_channels*i+1] = m.trainIdx;
buff[_channels*i+2] = m.imgIdx;
buff[_channels*i+3] = m.distance;
}
put(0, 0, buff); //TODO: check ret val!
}
public bool lessThan(DMatch it)
{
return(distance < it.distance);
}