Decorator class for Triangulations (s. More...

#include <TriDecorator.h>

Inheritance diagram for TriDecorator:

Public Member Functions
	TriDecorator ()

	TriDecorator (Triangulation *t)

virtual	~TriDecorator ()

virtual void	addLine (Line3D *line, bool breakline) override
	Adds a line (e.g. More...

virtual int	addPoint (Point3D *p) override
	Adds a point to the triangulation Ownership is transferred to this class. More...

virtual void	addTriangulation (Triangulation *t)
	Adds an association to a triangulation. More...

virtual bool	calcNormal (double x, double y, Vector3D *result) override
	Calculates the normal at a point on the surface and assigns it to 'result'. More...

virtual bool	calcPoint (double x, double y, Point3D *result) override
	Calculates x-, y and z-value of the point on the surface and assigns it to 'result'. More...

virtual void	eliminateHorizontalTriangles () override
	Eliminates the horizontal triangles by swapping. More...

virtual int	getNumberOfPoints () const override
	Returns the number of points. More...

virtual int	getOppositePoint (int p1, int p2) override
	Returns the number of the point opposite to the triangle points p1, p2 (which have to be on a halfedge) More...

virtual Point3D *	getPoint (unsigned int i) const override
	Returns a pointer to the point with number i. More...

virtual QList< int > *	getPointsAroundEdge (double x, double y) override
	Returns a value list with the numbers of the four points, which would be affected by an edge swap. More...

virtual QList< int > *	getSurroundingTriangles (int pointno) override
	Returns a pointer to a value list with the information of the triangles surrounding (counterclockwise) a point. More...

bool	getTriangle (double x, double y, Point3D p1, int n1, Point3D p2, int n2, Point3D p3, int n3) override
	Finds out in which triangle the point with coordinates x and y is and assigns the numbers of the vertices to 'n1', 'n2' and 'n3' and the vertices to 'p1', 'p2' and 'p3'. More...

bool	getTriangle (double x, double y, Point3D p1, Point3D p2, Point3D *p3) override
	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. More...

virtual double	getXMax () const override
	Returns the largest x-coordinate value of the bounding box. More...

virtual double	getXMin () const override
	Returns the smallest x-coordinate value of the bounding box. More...

virtual double	getYMax () const override
	Returns the largest y-coordinate value of the bounding box. More...

virtual double	getYMin () const override
	Returns the smallest x-coordinate value of the bounding box. More...

virtual void	performConsistencyTest () override
	Performs a consistency check, remove this later. More...

virtual bool	pointInside (double x, double y) override
	Returns true, if the point with coordinates x and y is inside the convex hull and false otherwise. More...

virtual void	ruppertRefinement () override
	Adds points to make the triangles better shaped (algorithm of ruppert) More...

virtual void	setBreakEdgeColor (int r, int g, int b) override
	Sets the color of the breaklines. More...

virtual void	setEdgeColor (int r, int g, int b) override
	Sets the color of the normal edges. More...

virtual void	setForcedCrossBehaviour (Triangulation::forcedCrossBehaviour b) override
	Draws the points, edges and the forced lines. More...

virtual void	setForcedEdgeColor (int r, int g, int b) override
	Sets the color of the forced edges. More...

virtual void	setTriangleInterpolator (TriangleInterpolator *interpolator) override
	Sets an interpolator object. More...

virtual bool	swapEdge (double x, double y) override
	Reads the content of a taff-file. More...

Public Member Functions inherited from Triangulation
virtual	~Triangulation ()

virtual bool	saveAsShapefile (const QString &fileName) const =0
	Saves the triangulation as a (line) shapefile. More...

Protected Attributes
Triangulation *	mTIN
	Association with a Triangulation object. More...

Additional Inherited Members
Public Types inherited from Triangulation
enum	forcedCrossBehaviour { SnappingType_VERTICE, DELETE_FIRST, INSERT_VERTICE }
	Enumeration describing the behaviour, if two forced lines cross. More...

Detailed Description

Decorator class for Triangulations (s.

Decorator pattern in Gamma et al.)

Definition at line 24 of file TriDecorator.h.

Constructor & Destructor Documentation

◆ TriDecorator() [1/2]

TriDecorator::TriDecorator ( )

inline

Definition at line 63 of file TriDecorator.h.

◆ TriDecorator() [2/2]

TriDecorator::TriDecorator ( Triangulation * t )

inlineexplicit

Definition at line 68 of file TriDecorator.h.

◆ ~TriDecorator()

TriDecorator::~TriDecorator ( )

inlinevirtual

Definition at line 73 of file TriDecorator.h.

Member Function Documentation

◆ addLine()

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

overridevirtual

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.

◆ addPoint()

virtual int TriDecorator::addPoint ( Point3D * p )

overridevirtual

Adds a point to the triangulation Ownership is transferred to this class.

Implements Triangulation.

Reimplemented in NormVecDecorator.

◆ addTriangulation()

void TriDecorator::addTriangulation ( Triangulation * t )

inlinevirtual

Adds an association to a triangulation.

Definition at line 78 of file TriDecorator.h.

◆ calcNormal()

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

overridevirtual

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

Returns: true in case of success and false in case of failure

Implements Triangulation.

Reimplemented in NormVecDecorator.

◆ calcPoint()

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

overridevirtual

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.

◆ eliminateHorizontalTriangles()

virtual void TriDecorator::eliminateHorizontalTriangles ( )

overridevirtual

Eliminates the horizontal triangles by swapping.

Implements Triangulation.

Reimplemented in NormVecDecorator.

◆ getNumberOfPoints()

virtual int TriDecorator::getNumberOfPoints ( ) const

overridevirtual

Returns the number of points.

Implements Triangulation.

◆ getOppositePoint()

virtual int TriDecorator::getOppositePoint	(	int	p1,
		int	p2
	)

overridevirtual

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

Implements Triangulation.

◆ getPoint()

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

overridevirtual

Returns a pointer to the point with number i.

Any virtual points must have the number -1

Implements Triangulation.

◆ getPointsAroundEdge()

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

overridevirtual

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.

◆ getSurroundingTriangles()

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

overridevirtual

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.

◆ getTriangle() [1/2]

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

overridevirtual

Finds out in which triangle the point with coordinates x and y is and assigns the numbers of the vertices to 'n1', 'n2' and 'n3' and the vertices to 'p1', 'p2' and 'p3'.

Implements Triangulation.

◆ getTriangle() [2/2]

bool TriDecorator::getTriangle	(	double	x,
		double	y,
		Point3D *	p1,
		Point3D *	p2,
		Point3D *	p3
	)

overridevirtual

Draws the points, edges and the forced lines.

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

Implements Triangulation.

◆ setForcedEdgeColor()

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

overridevirtual

Sets the color of the forced edges.

Implements Triangulation.

◆ setTriangleInterpolator()

virtual void TriDecorator::setTriangleInterpolator ( TriangleInterpolator * interpolator )

overridevirtual

Sets an interpolator object.

Implements Triangulation.

Reimplemented in NormVecDecorator.

◆ swapEdge()

virtual bool TriDecorator::swapEdge	(	double	x,
		double	y
	)

overridevirtual

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

◆ mTIN

Triangulation* TriDecorator::mTIN

protected

Association with a Triangulation object.

Definition at line 60 of file TriDecorator.h.

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

/tmp/buildd/qgis-2.18.21+99unstable/src/analysis/interpolation/TriDecorator.h

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ TriDecorator() [1/2]

◆ TriDecorator() [2/2]

◆ ~TriDecorator()

Member Function Documentation

◆ addLine()

◆ addPoint()

◆ addTriangulation()

◆ calcNormal()

◆ calcPoint()

◆ eliminateHorizontalTriangles()

◆ getNumberOfPoints()

◆ getOppositePoint()

◆ getPoint()

◆ getPointsAroundEdge()

◆ getSurroundingTriangles()

◆ getTriangle() [1/2]

◆ getTriangle() [2/2]

◆ getXMax()

◆ getXMin()

◆ getYMax()

◆ getYMin()

◆ performConsistencyTest()

◆ pointInside()

◆ ruppertRefinement()

◆ setBreakEdgeColor()

◆ setEdgeColor()

◆ setForcedCrossBehaviour()

◆ setForcedEdgeColor()

◆ setTriangleInterpolator()

◆ swapEdge()

Member Data Documentation

◆ mTIN