LineIntersector Class Reference

OSG-based line intersector class. More...

#include "LineIntersector.h"

Inheritance diagram for LineIntersector:

Public Member Functions
	LineIntersector ()
	LineIntersector (const osg::Vec3 &start, const osg::Vec3 &end)
	LineIntersector (CoordinateFrame cf, double x, double y)
	LineIntersector (CoordinateFrame cf, const osg::Vec3d &start, const osg::Vec3d &end)
void	setOffset (float offset)
float	getOffset () const
void	getHitIndices (int &first, int &last) const
virtual Intersector *	clone (osgUtil::IntersectionVisitor &iv)
virtual void	intersect (osgUtil::IntersectionVisitor &iv, osg::Drawable *drawable)
bool	isVirtualIntersector () const

Protected Member Functions
double	getSkewLinesDistance (const osg::Vec3d &r1, const osg::Vec3d &r2, const osg::Vec3d &v1, const osg::Vec3d &v2)
virtual bool	isRightPrimitive (const osg::Geometry *geometry)

Protected Attributes
float	m_offset
std::vector< unsigned int >	m_hitIndices

Detailed Description

OSG-based line intersector class.

This file is a part of osgIntersectors example program. See more details: https://github.com/vicrucann/osg-intersectors-example \autor Victoria Rudakova

Date

2016-2017

Copyright

MIT License

A class that allows to catch intersections with line loops and lines OpenGL types. It uses shortest distance between the cast ray and the geometry line which is calculated as a distance between skew lines. In addition, it filters out the geometries whose primitive sets are different than line-types.

Constructor & Destructor Documentation

LineIntersector() [1/4]

LineIntersector::LineIntersector

(

)

LineIntersector() [2/4]

LineIntersector::LineIntersector	(	const osg::Vec3 &	start,
		const osg::Vec3 &	end )

LineIntersector() [3/4]

LineIntersector::LineIntersector	(	CoordinateFrame	cf,
		double	x,
		double	y )

LineIntersector() [4/4]

LineIntersector::LineIntersector	(	CoordinateFrame	cf,
		const osg::Vec3d &	start,
		const osg::Vec3d &	end )

Member Function Documentation

clone()

osgUtil::Intersector * LineIntersector::clone ( osgUtil::IntersectionVisitor & iv )

virtual

getHitIndices()

void LineIntersector::getHitIndices	(	int &	first,
		int &	last ) const

getOffset()

float LineIntersector::getOffset

(

)

const

getSkewLinesDistance()

double LineIntersector::getSkewLinesDistance ( const osg::Vec3d & r1, const osg::Vec3d & r2, const osg::Vec3d & v1, const osg::Vec3d & v2 )

protected

intersect()

void LineIntersector::intersect ( osgUtil::IntersectionVisitor & iv, osg::Drawable * drawable )

virtual

isRightPrimitive()

bool LineIntersector::isRightPrimitive ( const osg::Geometry * geometry )

protectedvirtual

isVirtualIntersector()

bool LineIntersector::isVirtualIntersector

(

)

const

setOffset()

void LineIntersector::setOffset

(

float

offset

)

Member Data Documentation

m_hitIndices

std::vector<unsigned int> LineIntersector::m_hitIndices

protected

m_offset

float LineIntersector::m_offset

protected

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

• Libraries/Viewer/include/LineIntersector.h
• Libraries/Viewer/src/LineIntersector.cpp