Decorator class for Triangulations (s. More...

#include <TriDecorator.h>

Inheritance diagram for TriDecorator:

Collaboration diagram for TriDecorator:

Public Member Functions
	TriDecorator ()
	TriDecorator (Triangulation *t)
virtual	~TriDecorator ()
virtual void	addLine (Line3D *line, bool breakline)
	Adds a line (e.g.
virtual int	addPoint (Point3D *p)
	Adds a point to the triangulation.
virtual void	addTriangulation (Triangulation *t)
	Adds an association to a triangulation.
virtual bool	calcNormal (double x, double y, Vector3D *result)
	Calculates the normal at a point on the surface and assigns it to 'result'.
virtual bool	calcPoint (double x, double y, Point3D *result)
	Calculates x-, y and z-value of the point on the surface and assigns it to 'result'.
virtual void	eliminateHorizontalTriangles ()
	Eliminates the horizontal triangles by swapping.
virtual int	getNumberOfPoints () const
	Returns the number of points.
virtual int	getOppositePoint (int p1, int p2)
	Returns the number of the point opposite to the triangle points p1, p2 (which have to be on a halfedge)
virtual Point3D *	getPoint (unsigned int i) const
	Returns a pointer to the point with number i.
virtual QList< int > *	getPointsAroundEdge (double x, double y)
	Returns a value list with the numbers of the four points, which would be affected by an edge swap.
virtual QList< int > *	getSurroundingTriangles (int pointno)
	Returns a pointer to a value list with the information of the triangles surrounding (counterclockwise) a point.
bool	getTriangle (double x, double y, Point3D p1, int n1, Point3D p2, int n2, Point3D p3, int n3)
bool	getTriangle (double x, double y, Point3D p1, Point3D p2, Point3D *p3)
	Finds out, in which triangle the point with coordinates x and y is and assigns the points at the vertices to 'p1', 'p2' and 'p3.
virtual double	getXMax () const
	Returns the largest x-coordinate value of the bounding box.
virtual double	getXMin () const
	Returns the smallest x-coordinate value of the bounding box.
virtual double	getYMax () const
	Returns the largest y-coordinate value of the bounding box.
virtual double	getYMin () const
	Returns the smallest x-coordinate value of the bounding box.
virtual void	performConsistencyTest ()
	Performs a consistency check, remove this later.
virtual bool	pointInside (double x, double y)
	Returns true, if the point with coordinates x and y is inside the convex hull and false otherwise.
virtual void	ruppertRefinement ()
	Adds points to make the triangles better shaped (algorithm of ruppert)
virtual void	setBreakEdgeColor (int r, int g, int b)
	Sets the color of the breaklines.
virtual void	setEdgeColor (int r, int g, int b)
	Sets the color of the normal edges.
virtual void	setForcedCrossBehaviour (Triangulation::forcedCrossBehaviour b)
	draws the points, edges and the forced lines
virtual void	setForcedEdgeColor (int r, int g, int b)
	Sets the color of the forced edges.
virtual void	setTriangleInterpolator (TriangleInterpolator *interpolator)
	Sets an interpolator object.
virtual bool	swapEdge (double x, double y)
	Reads the content of a taff-file.
Protected Attributes
Triangulation *	mTIN
	Association with a Triangulation object.

Detailed Description

Decorator class for Triangulations (s.

Decorator pattern in Gamma et al.)

Definition at line 23 of file TriDecorator.h.

Constructor & Destructor Documentation

TriDecorator::TriDecorator ( ) [inline]

Definition at line 63 of file TriDecorator.h.

TriDecorator::TriDecorator ( Triangulation * t ) [inline]

Definition at line 68 of file TriDecorator.h.

TriDecorator::~TriDecorator ( ) [inline, virtual]

Definition at line 73 of file TriDecorator.h.

Member Function Documentation

virtual void TriDecorator::addLine	(	Line3D *	line,
		bool	breakline
	)		`[virtual]`

Adds a line (e.g.

a break-, structure- or an isoline) to the triangulation. The class takes ownership of the line object and its points

Implements Triangulation.

virtual int TriDecorator::addPoint ( Point3D * p ) [virtual]

Adds a point to the triangulation.

Implements Triangulation.

Reimplemented in NormVecDecorator.

void TriDecorator::addTriangulation ( Triangulation * t ) [inline, virtual]

Adds an association to a triangulation.

Definition at line 78 of file TriDecorator.h.

References mTIN.

Referenced by QgsTINInterpolator::initialize().

virtual bool TriDecorator::calcNormal	(	double	x,
		double	y,
		Vector3D *	result
	)		`[virtual]`

Calculates the normal at a point on the surface and assigns it to 'result'.

Returns true in case of success and flase in case of failure

Implements Triangulation.

Reimplemented in NormVecDecorator.

virtual bool TriDecorator::calcPoint	(	double	x,
		double	y,
		Point3D *	result
	)		`[virtual]`

Calculates x-, y and z-value of the point on the surface and assigns it to 'result'.

Returns true in case of success and flase in case of failure

Implements Triangulation.

Reimplemented in NormVecDecorator.

virtual void TriDecorator::eliminateHorizontalTriangles ( ) [virtual]

Eliminates the horizontal triangles by swapping.

Implements Triangulation.

Reimplemented in NormVecDecorator.

virtual int TriDecorator::getNumberOfPoints ( ) const [virtual]

Returns the number of points.

Implements Triangulation.

virtual int TriDecorator::getOppositePoint	(	int	p1,
		int	p2
	)		`[virtual]`

Returns the number of the point opposite to the triangle points p1, p2 (which have to be on a halfedge)

Implements Triangulation.

virtual Point3D* TriDecorator::getPoint ( unsigned int i ) const [virtual]

Returns a pointer to the point with number i.

Any virtual points must have the number -1

Implements Triangulation.

virtual QList<int>* TriDecorator::getPointsAroundEdge	(	double	x,
		double	y
	)		`[virtual]`

Returns a value list with the numbers of the four points, which would be affected by an edge swap.

This function is e.g. needed by NormVecDecorator to know the points, for which the normals have to be recalculated. The list has to be deleted by the code which calls this method

Implements Triangulation.

virtual QList<int>* TriDecorator::getSurroundingTriangles ( int pointno ) [virtual]

Returns a pointer to a value list with the information of the triangles surrounding (counterclockwise) a point.

Four integer values describe a triangle, the first three are the number of the half edges of the triangle and the fourth is -10, if the third (and most counterclockwise) edge is a breakline, and -20 otherwise. The value list has to be deleted by the code which called the method. Any virtual point needs to have the number -1

Implements Triangulation.

bool TriDecorator::getTriangle	(	double	x,
		double	y,
		Point3D *	p1,
		int *	n1,
		Point3D *	p2,
		int *	n2,
		Point3D *	p3,
		int *	n3
	)		`[virtual]`

Note:: not available in python bindings

Implements Triangulation.

bool TriDecorator::getTriangle	(	double	x,
		double	y,
		Point3D *	p1,
		Point3D *	p2,
		Point3D *	p3
	)		`[virtual]`

Finds out, in which triangle the point with coordinates x and y is and assigns the points at the vertices to 'p1', 'p2' and 'p3.

Implements Triangulation.

virtual double TriDecorator::getXMax ( ) const [virtual]

Returns the largest x-coordinate value of the bounding box.

Implements Triangulation.

virtual double TriDecorator::getXMin ( ) const [virtual]

Returns the smallest x-coordinate value of the bounding box.

Implements Triangulation.

virtual double TriDecorator::getYMax ( ) const [virtual]

Returns the largest y-coordinate value of the bounding box.

Implements Triangulation.

virtual double TriDecorator::getYMin ( ) const [virtual]

Returns the smallest x-coordinate value of the bounding box.

Implements Triangulation.

virtual void TriDecorator::performConsistencyTest ( ) [virtual]

Performs a consistency check, remove this later.

Implements Triangulation.

virtual bool TriDecorator::pointInside	(	double	x,
		double	y
	)		`[virtual]`

Returns true, if the point with coordinates x and y is inside the convex hull and false otherwise.

Implements Triangulation.

virtual void TriDecorator::ruppertRefinement ( ) [virtual]

Adds points to make the triangles better shaped (algorithm of ruppert)

Implements Triangulation.

virtual void TriDecorator::setBreakEdgeColor	(	int	r,
		int	g,
		int	b
	)		`[virtual]`

Sets the color of the breaklines.

Implements Triangulation.

virtual void TriDecorator::setEdgeColor	(	int	r,
		int	g,
		int	b
	)		`[virtual]`

Sets the color of the normal edges.

Implements Triangulation.

virtual void TriDecorator::setForcedCrossBehaviour ( Triangulation::forcedCrossBehaviour b ) [virtual]

draws the points, edges and the forced lines

Sets the behaviour of the triangulation in case of crossing forced lines

Implements Triangulation.

virtual void TriDecorator::setForcedEdgeColor	(	int	r,
		int	g,
		int	b
	)		`[virtual]`

Sets the color of the forced edges.

Implements Triangulation.

virtual void TriDecorator::setTriangleInterpolator ( TriangleInterpolator * interpolator ) [virtual]

Sets an interpolator object.

Implements Triangulation.

Reimplemented in NormVecDecorator.

virtual bool TriDecorator::swapEdge	(	double	x,
		double	y
	)		`[virtual]`

Reads the content of a taff-file.

Saves the content to a taff file Swaps the edge which is closest to the point with x and y coordinates (if this is possible)

Implements Triangulation.

Reimplemented in NormVecDecorator.

Member Data Documentation

Triangulation* TriDecorator::mTIN [protected]

Association with a Triangulation object.

Definition at line 60 of file TriDecorator.h.

Referenced by addTriangulation().

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

src/analysis/interpolation/TriDecorator.h

Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation