vtFeatureSetLineString3D Class Reference

Inheritance diagram for vtFeatureSetLineString3D:

List of all members.

Public Member Functions
unsigned int	GetNumEntities () const
void	SetNumGeometries (int iNum)
void	Reserve (int iNum)
bool	ComputeExtent (DRECT &rect) const
void	Offset (const DPoint2 &p, bool bSelectedOnly=false)
bool	TransformCoords (OCT *pTransform, bool progress_callback(int)=0)
bool	AppendGeometryFrom (vtFeatureSet *pFromSet)
int	AddPolyLine (const DLine3 &pl)
const DLine3 &	GetPolyLine (unsigned int num) const
DLine3 &	GetPolyLine (unsigned int num)
bool	ComputeHeightRange (float &fmin, float &fmax)
int	NumTotalVertices () const
bool	FindClosest (const DPoint2 &p, int &close_feature, DPoint3 &close_point)
virtual bool	IsInsideRect (int iElem, const DRECT &rect)
virtual void	CopyGeometry (unsigned int from, unsigned int to)
virtual void	SaveGeomToSHP (SHPHandle hSHP, bool progress_callback(int)=0) const
virtual void	LoadGeomFromSHP (SHPHandle hSHP, bool progress_callback(int)=0)
Protected Attributes
std::vector< DLine3 >	m_Line

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Detailed Description

A set of 3D linestring features, also known as "polylines." Each linestring is basically a simple set of 3D points.

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Member Function Documentation

bool vtFeatureSetLineString3D::FindClosest	(	const DPoint2 &	p,
		int &	close_feature,
		DPoint3 &	close_point
	)

For a given 2D point, find the linear feature closest to it (horizontally), and the closest point on that feature. Return true if a feature was found.

void vtFeatureSetLineString3D::Reserve

(

int

iNum

)

[virtual]

If you know how many entities you will be adding to this FeatureSet, is it more efficient to reserve space for that many.

Implements vtFeatureSet.