osgSim::ElevationSlice Class Reference

Helper class for setting up and aquiring height above terrain intersections with terrain. More...

List of all members.

Public Types
typedef std::vector < osg::Vec3d >	Vec3dList
typedef std::pair < double, double >	DistanceHeight
typedef std::vector < DistanceHeight >	DistanceHeightList
Public Member Functions
	ElevationSlice ()
void	setStartPoint (const osg::Vec3d &startPoint)
	Set the start point of the slice.
const osg::Vec3d &	getStartPoint () const
	Get the start point of the slice.
void	setEndPoint (const osg::Vec3d &endPoint)
	Set the end point of the slice.
const osg::Vec3d &	getEndPoint () const
	Get the end point of the slice.
const Vec3dList &	getIntersections () const
	Get the intersections in the form of a vector of Vec3d.
const DistanceHeightList &	getDistanceHeightIntersections () const
	Get the intersections in the form a vector of pair<double,double> representing distance along the slice and height.
void	computeIntersections (osg::Node *scene, osg::Node::NodeMask traversalMask=0xffffffff)
	Compute the intersections with the specified scene graph, the results are stored in vectors of Vec3d.
void	clearDatabaseCache ()
	Clear the database cache.
void	setDatabaseCacheReadCallback (DatabaseCacheReadCallback *dcrc)
	Set the ReadCallback that does the reading of external PagedLOD models, and caching of loaded subgraphs.
DatabaseCacheReadCallback *	getDatabaseCacheReadCallback ()
	Get the ReadCallback that does the reading of external PagedLOD models, and caching of loaded subgraphs.
Static Public Member Functions
static Vec3dList	computeElevationSlice (osg::Node *scene, const osg::Vec3d &startPoint, const osg::Vec3d &endPoint, osg::Node::NodeMask traversalMask=0xffffffff)
	Compute the vertical distance between the specified scene graph and a single HAT point.
Protected Attributes
osg::Vec3d	_startPoint
osg::Vec3d	_endPoint
Vec3dList	_intersections
DistanceHeightList	_distanceHeightIntersections
osg::ref_ptr < DatabaseCacheReadCallback >	_dcrc
osgUtil::IntersectionVisitor	_intersectionVisitor

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Detailed Description

Helper class for setting up and aquiring height above terrain intersections with terrain.

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Member Typedef Documentation

typedef std::vector<osg::Vec3d> osgSim::ElevationSlice::Vec3dList

typedef std::pair<double,double> osgSim::ElevationSlice::DistanceHeight

typedef std::vector<DistanceHeight> osgSim::ElevationSlice::DistanceHeightList

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Constructor & Destructor Documentation

osgSim::ElevationSlice::ElevationSlice

(

)

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Member Function Documentation

void osgSim::ElevationSlice::setStartPoint

(

const osg::Vec3d &

startPoint

)

[inline]

Set the start point of the slice.

const osg::Vec3d& osgSim::ElevationSlice::getStartPoint

(

)

const [inline]

Get the start point of the slice.

void osgSim::ElevationSlice::setEndPoint

(

const osg::Vec3d &

endPoint

)

[inline]

Set the end point of the slice.

const osg::Vec3d& osgSim::ElevationSlice::getEndPoint

(

)

const [inline]

Get the end point of the slice.

const Vec3dList& osgSim::ElevationSlice::getIntersections

(

)

const [inline]

Get the intersections in the form of a vector of Vec3d.

const DistanceHeightList& osgSim::ElevationSlice::getDistanceHeightIntersections

(

)

const [inline]

Get the intersections in the form a vector of pair<double,double> representing distance along the slice and height.

void osgSim::ElevationSlice::computeIntersections	(	osg::Node *	scene,
		osg::Node::NodeMask	traversalMask = 0xffffffff
	)

Compute the intersections with the specified scene graph, the results are stored in vectors of Vec3d.

Note, if the topmost node is a CoordinateSystemNode then the input points are assumed to be geocentric, with the up vector defined by the EllipsoidModel attached to the CoordinateSystemNode. If the topmost node is not a CoordinateSystemNode then a local coordinates frame is assumed, with a local up vector.

static Vec3dList osgSim::ElevationSlice::computeElevationSlice	(	osg::Node *	scene,
		const osg::Vec3d &	startPoint,
		const osg::Vec3d &	endPoint,
		osg::Node::NodeMask	traversalMask = 0xffffffff
	)			[static]

Compute the vertical distance between the specified scene graph and a single HAT point.

void osgSim::ElevationSlice::clearDatabaseCache

(

)

[inline]

Clear the database cache.

void osgSim::ElevationSlice::setDatabaseCacheReadCallback

(

DatabaseCacheReadCallback *

dcrc

)

Set the ReadCallback that does the reading of external PagedLOD models, and caching of loaded subgraphs.

Note, if you have mulitple LineOfSight or ElevationSlice objects in use at one time then you should share a single DatabaseCacheReadCallback between all of them.

DatabaseCacheReadCallback* osgSim::ElevationSlice::getDatabaseCacheReadCallback

(

)

[inline]

Get the ReadCallback that does the reading of external PagedLOD models, and caching of loaded subgraphs.

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Member Data Documentation

osg::Vec3d osgSim::ElevationSlice::_startPoint [protected]

osg::Vec3d osgSim::ElevationSlice::_endPoint [protected]

Vec3dList osgSim::ElevationSlice::_intersections [protected]

DistanceHeightList osgSim::ElevationSlice::_distanceHeightIntersections [protected]

osg::ref_ptr<DatabaseCacheReadCallback> osgSim::ElevationSlice::_dcrc [protected]

osgUtil::IntersectionVisitor osgSim::ElevationSlice::_intersectionVisitor [protected]

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

• ElevationSlice

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