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Add np::point_map to the Generic_writer (polygon soup)

This commit is contained in:
Mael Rouxel-Labbé 2020-05-29 12:04:16 +02:00
parent 9eebcfda9a
commit 54c6f6c20c
1 changed files with 27 additions and 13 deletions
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40
Stream_support/include/CGAL/IO/Generic_writer.h
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@ -30,29 +30,36 @@ template <typename Stream, typename FileWriter>
class Generic_writer class Generic_writer
{ {
public: public:
Generic_writer(Stream& out) : m_out(out) { } Generic_writer(Stream& os) : m_os(os) { }
Generic_writer(Stream& out, FileWriter writer) : m_out(out), m_writer(writer) { } Generic_writer(Stream& os, FileWriter writer) : m_os(os), m_writer(writer) { }
template <typename PointRange_3, typename PolygonRange_3> template <typename PointRange, typename PolygonRange, typename NamedParameters>
bool operator()(const PointRange_3& points, bool operator()(const PointRange& points,
const PolygonRange_3& polygons) const PolygonRange& polygons,
const NamedParameters& np)
{ {
typedef typename PointRange_3::value_type Point_3; typedef typename boost::range_value<PolygonRange>::type Poly;
typedef typename PolygonRange_3::value_type Polygon_3;
if(m_out.fail()) using parameters::choose_parameter;
using parameters::get_parameter;
typedef typename CGAL::GetPointMap<PointRange, NamedParameters>::type PointMap;
PointMap point_map = choose_parameter<PointMap>(get_parameter(np, internal_np::point_map));
if(!m_os.good())
return false; return false;
m_writer.write_header(m_out, points.size(), 0, polygons.size()); m_writer.write_header(m_os, points.size(), 0, polygons.size());
for(std::size_t i=0, end=points.size(); i<end; ++i) for(std::size_t i=0, end=points.size(); i<end; ++i)
{ {
const Point_3& p = points[i]; const typename boost::property_traits<PointMap>::reference p = get(point_map, points[i]);
m_writer.write_vertex(p.x(), p.y(), p.z()); m_writer.write_vertex(p.x(), p.y(), p.z());
} }
m_writer.write_facet_header(); m_writer.write_facet_header();
for(std::size_t i=0, end=polygons.size(); i<end; ++i) for(std::size_t i=0, end=polygons.size(); i<end; ++i)
{ {
const Polygon_3& polygon = polygons[i]; const Poly& polygon = polygons[i];
const std::size_t size = polygon.size(); const std::size_t size = polygon.size();
m_writer.write_facet_begin(size); m_writer.write_facet_begin(size);
@ -62,11 +69,18 @@ public:
} }
m_writer.write_footer(); m_writer.write_footer();
return m_out.good(); return m_os.good();
}
template <typename PointRange, typename PolygonRange, typename NamedParameters>
bool operator()(const PointRange& points,
const PolygonRange& polygons)
{
return this->operator()(points, polygons, parameters::all_default());
} }
protected: protected:
Stream& m_out; Stream& m_os;
FileWriter m_writer; FileWriter m_writer;
}; };