CGAL users discussion list

["Rubén Martínez" <>]

Hi !!!

I need some help with de aff transformation 3.

I have this code:

double m[16];

// Initialize m[ i ] with my transf

CGALTransf TAfin (      m[0], m[1],  m[2], m[3],
 m[4], m[5], m[6], m[7],
 m[8],m[9],m[10], m[11],);

// N is a nef polyedra

N.transform( TAfin );

My problem is that no aply correctly the transformations. Why? I dont
know, because I use this other code:

m[3] =5.0;
m[7]=5.0;

CGALTransf TAfin (      m[0], m[1],  m[2], CGAL::Gmpz(m[3]),
 m[4], m[5], m[6], CGAL::Gmpz(m[7]),
 m[8],m[9],m[10], m[11],);

// N is a nef polyedra
N.transform( TAfin );

In this case the aff trans run correctly, btu if I use the coge
CGAL::Gmpz with all th elements of the matrix I not obtain any result,
there are not trnaformation.
The aff trnasf only run correctly when the data is a const double
introduces by me in the code.

I need help, How I obtain it? I need obtain de transf with the matrix
m initializes in other site with elemens double.

Bye!