mesh3d::corner Class Reference

corner of polygon, connected to one point

#include <corner.h>

Public Member Functions
mesh3d::point *	point ()
mesh3d::polygon *	polygon ()
void	compute_normal (std::tr1::shared_ptr< attribute_map< mesh3d::corner *, vec3 > > corner_normals, std::tr1::shared_ptr< attribute_map< mesh3d::polygon *, vec3 > > polygon_normals, std::tr1::shared_ptr< attribute_map< mesh3d::point *, vec3 > > point_locations, float cos_max_smoothing_angle)
Friends
class	polygon

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Detailed Description

Definition at line 41 of file corner.h.

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Member Function Documentation

mesh3d::point* mesh3d::corner::point

(

)

[inline]

Definition at line 44 of file corner.h.

{ return m_point;   }

mesh3d::polygon* mesh3d::corner::polygon

(

)

[inline]

Definition at line 45 of file corner.h.

{ return m_polygon; }

void mesh3d::corner::compute_normal	(	std::tr1::shared_ptr< attribute_map< mesh3d::corner *, vec3 > >	corner_normals,
		std::tr1::shared_ptr< attribute_map< mesh3d::polygon *, vec3 > >	polygon_normals,
		std::tr1::shared_ptr< attribute_map< mesh3d::point *, vec3 > >	point_locations,
		float	cos_max_smoothing_angle
	)

Definition at line 40 of file corner.cpp.

{
    mesh3d::polygon *pol = polygon();
    mesh3d::point   *pnt = point  ();

    vec3 corner_normal;
 
    if(polygon_normals->has(pol) == false)
    {
        corner_normal = vec3(0, 0, 0);
    }
    else
    {
        vec3 polygon_normal = polygon_normals->value(pol);
        corner_normal       = polygon_normal;

        size_t point_corners = 0;
        size_t participants  = 0;
        for(
            point::corner_collection::iterator i = pnt->corners().begin();
            i != pnt->corners().end();
            ++i
        )
        {
            ++point_corners;
            mesh3d::corner  *point_corner = *i;
            mesh3d::polygon *neighbor_pol = point_corner->polygon();
            if( 
                (pol != neighbor_pol                ) &&
                (polygon_normals->has(neighbor_pol) ) &&
                (neighbor_pol->corners().size() > 2)
            )
            {
                vec3 neighbor_normal = polygon_normals->value(neighbor_pol);
                float cos_angle = dot(
                    polygon_normal, 
                    neighbor_normal
                );
                if(cos_angle < cos_max_smoothing_angle)
                {
                    corner_normal += neighbor_normal;
                    ++participants;
                }
            }
        }

        corner_normal = normalize(corner_normal);
    }
    corner_normals->set_value(this, corner_normal);
}

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Friends And Related Function Documentation

friend class polygon [friend]

Definition at line 55 of file corner.h.

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The documentation for this class was generated from the following files:

• corner.h
• corner.cpp