anonymous_namespace{ExtrudeGeometryFilter.cpp} Namespace Reference

Functions
float	getApparentRotation (const Geometry *geom)

---

Function Documentation

float anonymous_namespace{ExtrudeGeometryFilter.cpp}::getApparentRotation

(

const Geometry *

geom

)

Definition at line 47 of file ExtrudeGeometryFilter.cpp.

    {
        Segment n;
        double  maxLen2 = 0.0;
        ConstSegmentIterator i( geom, true );
        while( i.hasMore() )
        {
            Segment s = i.next();
            double len2 = (s.second - s.first).length2();
            if ( len2 > maxLen2 ) 
            {
                maxLen2 = len2;
                n = s;
            }
        }

        const osg::Vec3d& p1 = n.first.x() < n.second.x() ? n.first : n.second;
        const osg::Vec3d& p2 = n.first.x() < n.second.x() ? n.second : n.first;

        return atan2( p2.x()-p1.x(), p2.y()-p1.y() );
    }

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