Class to triangulate simple points. More...

Inheritance diagram for xms::TrTriangulatorPoints:

Public Member Functions
	TrTriangulatorPoints (const VecPt3d &a_pts, VecInt &a_tris, VecInt2d *a_trisAdjToPts=nullptr)
	Triangulate Pt3ds returning triangles in a single 1D vector. More...

virtual void	SetObserver (BSHP< Observer > a_)
	Set the observer to use for feedback while processing. More...

virtual int	GetID () const override
	Return the current point index (0-based). More...

virtual Pt3d	GetLocation () const override
	Get location of current point. More...

virtual int	GetNPoints () const override
	Return the number of points to be triangulated. More...

virtual void	IncrementPoint () override
	Increment the current point index by 1.

virtual void	PrepareToReceiveTriangles () override
	Called just before triangles are created.

virtual void	FinalizeTriangulation () override
	Called after all triangles have been received.

virtual void	ReceiveTriangle (int a_id1, int a_id2, int a_id3) override
	Receive a triangle consisting of the 3 points. More...

Public Member Functions inherited from xms::TrTriangulator
	TrTriangulator ()
	Constructor.

virtual	~TrTriangulator ()
	Destructor.

bool	Triangulate ()
	Triangulate the points into a tin. More...

Private Member Functions
void	UpdateAreaTolerance ()
	calculates the area tolerance

Private Attributes
const VecPt3d &	m_pts
	The points.

int	m_idx
	Current point index.

VecInt &	m_tris
	The triangles as 0-based indices into m_pts.

VecInt2d *	m_trisAdjToPts
	Triangles adjacent to points.

double	m_areaTol
	tolerance for area to be greater than 0.0

BSHP< Observer >	m_observer
	Observer.

Detailed Description

Class to triangulate simple points.

Definition at line 25 of file TrTriangulatorPoints.h.

Constructor & Destructor Documentation

◆ TrTriangulatorPoints()

xms::TrTriangulatorPoints::TrTriangulatorPoints	(	const VecPt3d &	a_pts,
		VecInt &	a_tris,
		VecInt2d *	a_trisAdjToPts = `nullptr`
	)

Triangulate Pt3ds returning triangles in a single 1D vector.

Parameters

a_pts	The points to triangulate.
a_tris	0-based indices into a_pts defining the triangles. Every three elements defines a triangle. Size of num triangles * 3.
a_trisAdjToPts	0-based triangles adjacent to points. Size of a_pts. Optional - include if you want this info.

The point and edge order is shown in the following figure:

///          2
///         / \
///        /   \
///      2/     \1     Point and edge numbering and order
///      /       \
///     /         \
///    0-----0-----1
///

For example, the 0th point goes with the 0th edge and that edge
consists of points 0 and 1.

/// 10-        3-----------4
///   |       / \         / \
///   |      /   \   2   /   \
///   |     /     \     /     \
///   |    /   0   \   /   1   \
///   |   /         \ /         \
///  0-  0-----------1-----------2
///
///      |-----|-----|-----|-----|
///      0     5    10    15    20
///
/// a_tris          =  3,0,1,  1,2,4,  1,4,3
/// a_trisAdjToPts  = [0][0,1,2][1][0,2][1,2]
///

Definition at line 87 of file TrTriangulatorPoints.cpp.

References UpdateAreaTolerance().

Member Function Documentation

◆ GetID()

int xms::TrTriangulatorPoints::GetID ( ) const

overridevirtual

Return the current point index (0-based).

Returns: The current point index.

Definition at line 117 of file TrTriangulatorPoints.cpp.

References m_idx.

◆ GetLocation()

Pt3d xms::TrTriangulatorPoints::GetLocation ( ) const

overridevirtual

Get location of current point.

Returns: Location of current point.

Definition at line 125 of file TrTriangulatorPoints.cpp.

References m_idx, and m_pts.

◆ GetNPoints()

int xms::TrTriangulatorPoints::GetNPoints ( ) const

overridevirtual

Return the number of points to be triangulated.

Returns: Number of points to be triangulated.

Definition at line 133 of file TrTriangulatorPoints.cpp.

References m_pts.

◆ ReceiveTriangle()

void xms::TrTriangulatorPoints::ReceiveTriangle	(	int	a_id1,
		int	a_id2,
		int	a_id3
	)

overridevirtual

Receive a triangle consisting of the 3 points.

Parameters

[in]	a_id1	First point of triangle.
[in]	a_id2	Second point of triangle.
[in]	a_id3	Third point of triangle.

Definition at line 171 of file TrTriangulatorPoints.cpp.

References xms::gmColinearWithTol(), m_areaTol, m_pts, m_tris, m_trisAdjToPts, and xms::trArea().

◆ SetObserver()

void xms::TrTriangulatorPoints::SetObserver ( BSHP< Observer > a_ )

virtual

Set the observer to use for feedback while processing.

Parameters

a_	The observer.

Definition at line 109 of file TrTriangulatorPoints.cpp.

References m_observer.

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

/home/conan/xmsgrid/triangulate/TrTriangulatorPoints.h
/home/conan/xmsgrid/triangulate/TrTriangulatorPoints.cpp

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ TrTriangulatorPoints()

Member Function Documentation

◆ GetID()

◆ GetLocation()

◆ GetNPoints()

◆ ReceiveTriangle()

◆ SetObserver()