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TriDecorator Class Reference

Decorator class for Triangulations (s. More...

#include <TriDecorator.h>

Inheritance diagram for TriDecorator:
Inheritance graph
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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 void performConsistencyTest ()
 Performs a consistency check, remove this later.
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 Point3DgetPoint (unsigned int i) const
 Returns a pointer to the point with number i.
virtual int getNumberOfPoints () const
 Returns the number of points.
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 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 QList< int > * getSurroundingTriangles (int pointno)
 Returns a pointer to a value list with the information of the triangles surrounding (counterclockwise) a point.
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 setForcedCrossBehaviour (Triangulation::forcedCrossBehaviour b)
 draws the points, edges and the forced lines
virtual void setEdgeColor (int r, int g, int b)
 Sets the color of the normal edges.
virtual void setForcedEdgeColor (int r, int g, int b)
 Sets the color of the forced edges.
virtual void setBreakEdgeColor (int r, int g, int b)
 Sets the color of the breaklines.
virtual void setTriangleInterpolator (TriangleInterpolator *interpolator)
 Sets an interpolator object.
virtual void eliminateHorizontalTriangles ()
 Eliminates the horizontal triangles by swapping.
virtual void ruppertRefinement ()
 Adds points to make the triangles better shaped (algorithm of ruppert)
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 bool swapEdge (double x, double y)
 Reads the content of a taff-file.
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.
- Public Member Functions inherited from Triangulation
virtual ~Triangulation ()
virtual bool saveAsShapefile (const QString &fileName) const =0
 Saves the triangulation as a (line) shapefile.

Protected Attributes

TriangulationmTIN
 Association with a Triangulation object.

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.)

Constructor & Destructor Documentation

TriDecorator::TriDecorator ( )
inline
TriDecorator::TriDecorator ( Triangulation t)
inline
TriDecorator::~TriDecorator ( )
inlinevirtual

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)
inlinevirtual

Adds an association to a triangulation.

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.


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