using vxl/vnl code

[Luis Ibanez]

Hi,

We are testing the code from vxl/vnl, trying first
to perform some of the basic 3D transformations
that are usual in 3D/2D registration.

we are using  g++ 2.95.1 under SunOS
and g++ 2.95.2 under Linux.


It seems that some of the code in vxl/vcl conflicts with definitions
in the STL headers. The compiler produces messages like :

/usr/local/contrib/mod/gcc/with_binutils-2.9.1/lib/gcc-lib/sparc-sun-solaris2.5.1/2.95.1/include/g++/stl_config.h:158:
warning: `__STL_CLASS_PARTIAL_SPECIALIZATION' redefined
/net/optic/playpen/Insight/Insight/Code/Insight3DParty/vxl/vcl/emulation/gcc-295-stlconf.h:97:
warning: this is the location of the previous definition

Similar messages exist for
__STL_MEMBER_TEMPLATES
__STL_NO_NAMESPACES
__STL_USE_EXCEPTIONS
__STL_LONG_LONG

Is this "vcl/emulation/..." something that we want to use ?,
or is it an optional code that can be enabled/disabled with some flags ?

------

This is our section of code

#include <vnl/vnl_vector.txx>
#include <vnl/vnl_vector_fixed.txx>
#include <iostream>
#include <vector>

class point3d : public vnl_vector_fixed<float,3> {
public:
  point3d() {};
};

class curve3d : public vector< point3d > {
public:
  curve3d() {};
};


int main() {

  point3d pp;
  curve3d cc;

  return 0;
}


=================================


There are also a series of messages concerning "friend" functions
declared in 

vxl/vnl/vnl_vector.h (lines 117-137)

the messages are of type : 

" friend declaration `...fucntion name ..` declares a non-template
function. "

Looks like this "friend" declarations are not needed at all. 

Are we missing some declaration that can solve this conflicts  ?



Is there some web site were we can get documentation 
about the vxl library, some kind of tutorial of how-to ?





Thanks

Luis


--
______________________________________________________________________

Luis Ibanez
Research Assistant Professor - Division of Neurosurgery
University of North Carolina at Chapel Hill
Sitterson Hall, CB#3175, Chapel Hill, NC 27599
email : ibanez at cs.unc.edu       home  : http://www.cs.unc.edu/~ibanez
phone : (919)-843-9961          fax   : (919)-962-1799
______________________________________________________________________