TriangulatePoints and vector<Point2f> or CV_XXFC2 Matrices (Bug #2167)

Sorry, it seems that the solution is a bit more complicated than that.
In order to convert a vector<Point2f> P into a single-channel matrix 2xN we have to do this

Mat(P).reshape( 1, P.size() ).t()

So a rough patch may be something like this

Mat points1 = _projPoints1.getMat(), points2 = _projPoints2.getMat();
int npts1 = points1.checkVector(2);
int npts2 = points2.checkVector(2);
CV_Assert( npts1 == npts2 && npts1 > 0);
points1 = points1.reshape( 1, npts1 ).t();
points2 = points2.reshape( 1, npts2 ).t();

But I'm sure you guys have a smarter and better way to do that :)

S.

Thanks again! It's also my fault. I had to be more careful. Fixed in 839761fa.

Updated from the trunk yesterday, but still see wrong behavior of reshape(). The number of channels does not change under any condition via reshape().

#include <opencv2/core/core.hpp>
#include <iostream>
#include <vector>

using namespace std;
using namespace cv;

void print_size( const Mat& k ) {
   cout << k.size( ).width << "x" << k.size( ).height << "@" << k.channels( )
            << endl;
}

template < typename T >
void show_mat( const Mat& k ) {
   print_size( k );
   for ( int j = 0; j < k.size( ).height; ++ j ) {
      for ( int i = 0; i < k.size( ).width; ++ i )
         cout << k.at < T > ( j, i ) << ' ';
      cout << endl;
   }
}

int main( int argc, char *argv[ ] ) {
   vector < Point2f > pts;
   pts.push_back( Point2f( 1, 2 ) );
   pts.push_back( Point2f( 3, 4 ) );

   Mat m( pts );
   show_mat < float >( m );
   Mat m2;
   m.copyTo( m2 );
   m2.reshape( 1 );
   show_mat < float >( m2 );

   Mat m3;
   m.copyTo( m3 );
   m3.reshape( 1, m.size( ).area( ) * m.channels( ) );
   show_mat < float >( m3 );

   return 0;
}

Output:
-------
*

1x2@2
1 
3 
1x2@2
1 
3 
1x2@2
1 
3