163 return QList< int >();
SourceType
Describes the type of input data.
Point geometry type, with support for z-dimension and m-values.
virtual bool calcNormal(double x, double y, QgsPoint &result)=0
Calculates the normal at a point on the surface and assigns it to 'result'.
virtual double yMax() const =0
Returns the largest y-coordinate value of the bounding box.
virtual void eliminateHorizontalTriangles()=0
Eliminates the horizontal triangles by swapping.
virtual void performConsistencyTest()=0
Performs a consistency check, remove this later.
virtual void ruppertRefinement()=0
Adds points to make the triangles better shaped (algorithm of ruppert)
virtual int pointsCount() const =0
Returns the number of points.
virtual double xMax() const =0
Returns the largest x-coordinate value of the bounding box.
virtual double yMin() const =0
Returns the smallest x-coordinate value of the bounding box.
ForcedCrossBehavior
Enumeration describing the behavior, if two forced lines cross.
virtual QgsPoint * point(int i) const =0
Returns a pointer to the point with number i.
virtual void addLine(const QgsPointSequence &points, QgsInterpolator::SourceType lineType)=0
Adds a line (e.g.
virtual QList< int > pointsAroundEdge(double x, double y)=0
Returns a value list with the numbers of the four points, which would be affected by an edge swap.
virtual bool calcPoint(double x, double y, QgsPoint &result)=0
Calculates x-, y and z-value of the point on the surface and assigns it to 'result'.
virtual int oppositePoint(int p1, int p2)=0
Returns the number of the point opposite to the triangle points p1, p2 (which have to be on a halfedg...
virtual int addPoint(const QgsPoint &point)=0
Adds a point to the triangulation.
virtual bool swapEdge(double x, double y)=0
Reads the content of a taff-file.
virtual void setTriangleInterpolator(TriangleInterpolator *interpolator)=0
Sets an interpolator object.
virtual bool triangleVertices(double x, double y, QgsPoint &p1, int &n1, QgsPoint &p2, int &n2, QgsPoint &p3, int &n3)=0
Finds out in which triangle the point with coordinates x and y is and assigns the numbers of the vert...
virtual double xMin() const =0
Returns the smallest x-coordinate value of the bounding box.
virtual QList< int > surroundingTriangles(int pointno)=0
Returns a value list with the information of the triangles surrounding (counterclockwise) a point.
virtual void setForcedCrossBehavior(QgsTriangulation::ForcedCrossBehavior b)=0
Draws the points, edges and the forced lines.
virtual bool pointInside(double x, double y)=0
Returns true, if the point with coordinates x and y is inside the convex hull and false otherwise.
bool swapEdge(double x, double y) override
Reads the content of a taff-file.
QgsPoint * point(int i) const override
Returns a pointer to the point with number i.
int oppositePoint(int p1, int p2) override
Returns the number of the point opposite to the triangle points p1, p2 (which have to be on a halfedg...
void setTriangleInterpolator(TriangleInterpolator *interpolator) override
Sets an interpolator object.
void ruppertRefinement() override
Adds points to make the triangles better shaped (algorithm of ruppert)
double yMin() const override
Returns the smallest x-coordinate value of the bounding box.
void performConsistencyTest() override
Performs a consistency check, remove this later.
double xMax() const override
Returns the largest x-coordinate value of the bounding box.
void eliminateHorizontalTriangles() override
Eliminates the horizontal triangles by swapping.
double yMax() const override
Returns the largest y-coordinate value of the bounding box.
int addPoint(const QgsPoint &p) override
Adds a point to the triangulation.
QgsTriangulation * mTIN
Association with a Triangulation object.
void addLine(const QVector< QgsPoint > &points, QgsInterpolator::SourceType lineType) override
Adds a line (e.g.
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.
bool calcPoint(double x, double y, QgsPoint &result) override
Calculates x-, y and z-value of the point on the surface and assigns it to 'result'.
QList< int > pointsAroundEdge(double x, double y) override
Returns a value list with the numbers of the four points, which would be affected by an edge swap.
QList< int > surroundingTriangles(int pointno) override
Returns a value list with the information of the triangles surrounding (counterclockwise) a point.
int pointsCount() const override
Returns the number of points.
bool triangleVertices(double x, double y, QgsPoint &p1, int &n1, QgsPoint &p2, int &n2, QgsPoint &p3, int &n3) override
Finds out in which triangle the point with coordinates x and y is and assigns the numbers of the vert...
bool calcNormal(double x, double y, QgsPoint &result) override
Calculates the normal at a point on the surface and assigns it to 'result'.
void setForcedCrossBehavior(QgsTriangulation::ForcedCrossBehavior b) override
Draws the points, edges and the forced lines.
double xMin() const override
Returns the smallest x-coordinate value of the bounding box.
This is an interface for interpolator classes for triangulations.
#define QgsDebugError(str)