mirror of https://github.com/CGAL/cgal
117 lines
3.5 KiB
C++
117 lines
3.5 KiB
C++
// ============================================================================
|
|
//
|
|
// Copyright (c) 1997 The CGAL Consortium
|
|
//
|
|
// This software and related documentation is part of an INTERNAL release
|
|
// of the Computational Geometry Algorithms Library (CGAL). It is not
|
|
// intended for general use.
|
|
//
|
|
// ----------------------------------------------------------------------------
|
|
//
|
|
// release : $CGAL_Revision: $
|
|
// release_date : $CGAL_Date: $
|
|
//
|
|
// file : include/CGAL/IO/generic_copy_OFF.h
|
|
// package : Polyhedron_IO 2.11 (04 Feb 2000)
|
|
// chapter : Support Library
|
|
//
|
|
// revision : $Revision$
|
|
// revision_date : $Date$
|
|
//
|
|
// author(s) : Lutz Kettner <kettner@mpi-sb.mpg.de>
|
|
// maintainer :
|
|
// coordinator : INRIA, Sophia Antipolis
|
|
//
|
|
// Generic copy of an object file format (OFF) file
|
|
// ============================================================================
|
|
|
|
#ifndef CGAL_IO_GENERIC_COPY_OFF_H
|
|
#define CGAL_IO_GENERIC_COPY_OFF_H 1
|
|
#ifndef CGAL_BASIC_H
|
|
#include <CGAL/basic.h>
|
|
#endif
|
|
#ifndef CGAL_PROTECT_CSTDDEF
|
|
#include <cstddef>
|
|
#define CGAL_PROTECT_CSTDDEF
|
|
#endif
|
|
#ifndef CGAL_IO_FILE_HEADER_OFF_H
|
|
#include <CGAL/IO/File_header_OFF.h>
|
|
#endif // CGAL_IO_FILE_HEADER_OFF_H
|
|
#ifndef CGAL_IO_FILE_SCANNER_OFF_H
|
|
#include <CGAL/IO/File_scanner_OFF.h>
|
|
#endif // CGAL_IO_FILE_SCANNER_OFF_H
|
|
#ifndef CGAL_PROTECT_IOSTREAM
|
|
#include <iostream>
|
|
#define CGAL_PROTECT_IOSTREAM
|
|
#endif
|
|
|
|
CGAL_BEGIN_NAMESPACE
|
|
|
|
template <class Writer>
|
|
void
|
|
generic_copy_OFF( File_scanner_OFF& scanner,
|
|
std::ostream& out,
|
|
Writer& writer) {
|
|
std::istream& in = scanner.in();
|
|
// scans a polyhedral surface in OFF from `in' and writes it
|
|
// to `out' in the format provided by `writer'.
|
|
if ( ! in) {
|
|
if ( scanner.verbose()) {
|
|
std::cerr << " " << std::endl;
|
|
std::cerr << "generic_copy_OFF(): "
|
|
"input error: file format is not in OFF."
|
|
<< std::endl;
|
|
}
|
|
return;
|
|
}
|
|
|
|
// Print header. Number of halfedges is only trusted if it is
|
|
// a polyhedral surface.
|
|
writer.write_header( out,
|
|
scanner.size_of_vertices(),
|
|
scanner.polyhedral_surface() ?
|
|
scanner.size_of_halfedges() : 0,
|
|
scanner.size_of_facets());
|
|
|
|
// read in all vertices
|
|
double x, y, z; // Point coordinates.
|
|
int i;
|
|
for ( i = 0; i < scanner.size_of_vertices(); i++) {
|
|
scanner.scan_vertex( x, y, z);
|
|
writer.write_vertex( x, y, z);
|
|
scanner.skip_to_next_vertex( i);
|
|
}
|
|
|
|
// read in all facets
|
|
writer.write_facet_header();
|
|
for ( i = 0; i < scanner.size_of_facets(); i++) {
|
|
if ( ! in)
|
|
return;
|
|
Integer32 no;
|
|
scanner.scan_facet( no, i);
|
|
writer.write_facet_begin( no);
|
|
for ( int j = 0; j < no; j++) {
|
|
Integer32 index;
|
|
scanner.scan_facet_vertex_index( index, i);
|
|
writer.write_facet_vertex_index( index);
|
|
}
|
|
writer.write_facet_end();
|
|
scanner.skip_to_next_facet( i);
|
|
}
|
|
writer.write_footer();
|
|
}
|
|
|
|
template <class Writer>
|
|
void
|
|
generic_copy_OFF( std::istream& in, std::ostream& out, Writer& writer,
|
|
bool verbose = false) {
|
|
// scans a polyhedral surface in OFF from `in' and writes it
|
|
// to `out' in the format provided by `writer'.
|
|
File_scanner_OFF scanner( in, verbose);
|
|
generic_copy_OFF( scanner, out, writer);
|
|
}
|
|
|
|
CGAL_END_NAMESPACE
|
|
#endif // CGAL_IO_GENERIC_COPY_OFF_H //
|
|
// EOF //
|