Interpolates linearly on a triangulation. More...

#include <LinTriangleInterpolator.h>

Inheritance diagram for LinTriangleInterpolator:

Public Member Functions
	LinTriangleInterpolator ()=default

	LinTriangleInterpolator (QgsDualEdgeTriangulation *tin)
	Constructor with reference to a DualEdgeTriangulation object.

bool	calcNormVec (double x, double y, QgsPoint &result) override
	Calculates the normal vector and assigns it to vec.

bool	calcPoint (double x, double y, QgsPoint &result) override
	Performs a linear interpolation in a triangle and assigns the x-,y- and z-coordinates to point.

virtual QgsDualEdgeTriangulation *	getTriangulation () const
	Returns a pointer to the current Triangulation object.

virtual void	setTriangulation (QgsDualEdgeTriangulation *tin)
	Sets a Triangulation.

Public Member Functions inherited from TriangleInterpolator
virtual	~TriangleInterpolator ()=default

Protected Member Functions
virtual bool	calcFirstDerX (double x, double y, Vector3D *result)
	Calculates the first derivative with respect to x for a linear surface and assigns it to vec.

virtual bool	calcFirstDerY (double x, double y, Vector3D *result)
	Calculates the first derivative with respect to y for a linear surface and assigns it to vec.

Protected Attributes
QgsDualEdgeTriangulation *	mTIN = nullptr

Detailed Description

Interpolates linearly on a triangulation.

Note: Not available in Python bindings.

Definition at line 31 of file LinTriangleInterpolator.h.

Constructor & Destructor Documentation

◆ LinTriangleInterpolator() [1/2]

LinTriangleInterpolator::LinTriangleInterpolator ( )

default

◆ LinTriangleInterpolator() [2/2]

LinTriangleInterpolator::LinTriangleInterpolator ( QgsDualEdgeTriangulation * tin )

inline

Constructor with reference to a DualEdgeTriangulation object.

Definition at line 56 of file LinTriangleInterpolator.h.

Member Function Documentation

◆ calcFirstDerX()

bool LinTriangleInterpolator::calcFirstDerX	(	double	x,
		double	y,
		Vector3D *	result
	)

protectedvirtual

Calculates the first derivative with respect to x for a linear surface and assigns it to vec.

Definition at line 20 of file LinTriangleInterpolator.cpp.

◆ calcFirstDerY()

bool LinTriangleInterpolator::calcFirstDerY	(	double	x,
		double	y,
		Vector3D *	result
	)

protectedvirtual

Calculates the first derivative with respect to y for a linear surface and assigns it to vec.

Definition at line 46 of file LinTriangleInterpolator.cpp.

◆ calcNormVec()

bool LinTriangleInterpolator::calcNormVec	(	double	x,
		double	y,
		QgsPoint &	result
	)

overridevirtual

Calculates the normal vector and assigns it to vec.

Implements TriangleInterpolator.

Definition at line 72 of file LinTriangleInterpolator.cpp.

◆ calcPoint()

bool LinTriangleInterpolator::calcPoint	(	double	x,
		double	y,
		QgsPoint &	result
	)

overridevirtual

Performs a linear interpolation in a triangle and assigns the x-,y- and z-coordinates to point.

Implements TriangleInterpolator.

Definition at line 102 of file LinTriangleInterpolator.cpp.

◆ getTriangulation()

QgsDualEdgeTriangulation * LinTriangleInterpolator::getTriangulation ( ) const

inlinevirtual

Returns a pointer to the current Triangulation object.

Definition at line 61 of file LinTriangleInterpolator.h.

◆ setTriangulation()

void LinTriangleInterpolator::setTriangulation ( QgsDualEdgeTriangulation * tin )

inlinevirtual

Sets a Triangulation.

Definition at line 66 of file LinTriangleInterpolator.h.

Member Data Documentation

◆ mTIN

QgsDualEdgeTriangulation* LinTriangleInterpolator::mTIN = nullptr

protected

Definition at line 47 of file LinTriangleInterpolator.h.

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

/build/qgis-3.99.0+git20250718+f78f5286a64+99sid/src/analysis/interpolation/LinTriangleInterpolator.h
/build/qgis-3.99.0+git20250718+f78f5286a64+99sid/src/analysis/interpolation/LinTriangleInterpolator.cpp

Public Member Functions

Protected Member Functions

Protected Attributes