A block of 3d stacked mesh data related N faces defined on base mesh frame. More...

#include <qgsmeshdataset.h>

Public Member Functions
	QgsMesh3DDataBlock ()
	Constructs an invalid block.

	QgsMesh3DDataBlock (int count, bool isVector)
	Constructs a new block for count faces.

	~QgsMesh3DDataBlock ()

int	count () const
	Number of 2d faces for which the volume data is stored in the block.

QVector< int >	faceToVolumeIndex () const
	Returns the indexing between faces and volumes.

int	firstVolumeIndex () const
	Index of the first volume stored in the buffer (absolute)

bool	isValid () const
	Whether the block is valid.

bool	isVector () const
	Whether we store vector values.

int	lastVolumeIndex () const
	Index of the last volume stored in the buffer (absolute)

void	setFaceToVolumeIndex (const QVector< int > &faceToVolumeIndex)
	Sets the indexing between faces and volumes.

void	setValid (bool valid)
	Sets block validity.

void	setValues (const QVector< double > &doubleBuffer)
	Sets the values at volume centers.

void	setVerticalLevels (const QVector< double > &verticalLevels)
	Sets the vertical levels height.

void	setVerticalLevelsCount (const QVector< int > &verticalLevelsCount)
	Sets the vertical level counts.

QgsMeshDatasetValue	value (int volumeIndex) const
	Returns the value at volume centers.

QVector< double >	values () const
	Returns the values at volume centers.

QVector< double >	verticalLevels () const
	Returns the vertical levels height.

QVector< int >	verticalLevelsCount () const
	Returns number of vertical level above 2d faces.

int	volumesCount () const
	Returns number of volumes stored in the buffer.

Detailed Description

A block of 3d stacked mesh data related N faces defined on base mesh frame.

Data are implicitly shared, so the class can be quickly copied std::numeric_limits<double>::quiet_NaN() represents NODATA value

Note: The API is considered EXPERIMENTAL and can be changed without a notice; In QGIS 3.34 this class was renamed from QgsMesh3dDataBlock to QgsMesh3DDataBlock. The old QgsMesh3dDataBlock name remains available in PyQGIS for compatibility.

Since: QGIS 3.12

Definition at line 253 of file qgsmeshdataset.h.

Constructor & Destructor Documentation

◆ QgsMesh3DDataBlock() [1/2]

QgsMesh3DDataBlock::QgsMesh3DDataBlock ( )

default

Constructs an invalid block.

◆ ~QgsMesh3DDataBlock()

QgsMesh3DDataBlock::~QgsMesh3DDataBlock ( )

Definition at line 350 of file qgsmeshdataset.cpp.

◆ QgsMesh3DDataBlock() [2/2]

QgsMesh3DDataBlock::QgsMesh3DDataBlock	(	int	count,
		bool	isVector
	)

Constructs a new block for count faces.

Definition at line 352 of file qgsmeshdataset.cpp.

Member Function Documentation

◆ count()

int QgsMesh3DDataBlock::count ( ) const

Number of 2d faces for which the volume data is stored in the block.

Definition at line 368 of file qgsmeshdataset.cpp.

◆ faceToVolumeIndex()

QVector< int > QgsMesh3DDataBlock::faceToVolumeIndex ( ) const

Returns the indexing between faces and volumes.

Definition at line 424 of file qgsmeshdataset.cpp.

◆ firstVolumeIndex()

int QgsMesh3DDataBlock::firstVolumeIndex ( ) const

Index of the first volume stored in the buffer (absolute)

Definition at line 373 of file qgsmeshdataset.cpp.

◆ isValid()

bool QgsMesh3DDataBlock::isValid ( ) const

Whether the block is valid.

Definition at line 358 of file qgsmeshdataset.cpp.

◆ isVector()

bool QgsMesh3DDataBlock::isVector ( ) const

Whether we store vector values.

Definition at line 363 of file qgsmeshdataset.cpp.

◆ lastVolumeIndex()

int QgsMesh3DDataBlock::lastVolumeIndex ( ) const

Index of the last volume stored in the buffer (absolute)

Definition at line 380 of file qgsmeshdataset.cpp.

◆ setFaceToVolumeIndex()

void QgsMesh3DDataBlock::setFaceToVolumeIndex ( const QVector< int > & faceToVolumeIndex )

Sets the indexing between faces and volumes.

Definition at line 400 of file qgsmeshdataset.cpp.

◆ setValid()

void QgsMesh3DDataBlock::setValid ( bool valid )

Sets block validity.

Definition at line 456 of file qgsmeshdataset.cpp.

◆ setValues()

void QgsMesh3DDataBlock::setValues ( const QVector< double > & doubleBuffer )

Sets the values at volume centers.

For vector datasets the number of values is doubled (x1, y1, x2, y2, ... )

Definition at line 450 of file qgsmeshdataset.cpp.

◆ setVerticalLevels()

void QgsMesh3DDataBlock::setVerticalLevels ( const QVector< double > & verticalLevels )

Sets the vertical levels height.

Definition at line 418 of file qgsmeshdataset.cpp.

◆ setVerticalLevelsCount()

void QgsMesh3DDataBlock::setVerticalLevelsCount ( const QVector< int > & verticalLevelsCount )

Sets the vertical level counts.

Definition at line 406 of file qgsmeshdataset.cpp.

◆ value()

QgsMeshDatasetValue QgsMesh3DDataBlock::value ( int volumeIndex ) const

Returns the value at volume centers.

Parameters

volumeIndex volume index relative to firstVolumeIndex()

Returns: value (scalar or vector)

Definition at line 436 of file qgsmeshdataset.cpp.

◆ values()

QVector< double > QgsMesh3DDataBlock::values ( ) const

Returns the values at volume centers.

For vector datasets the number of values is doubled (x1, y1, x2, y2, ... )

Definition at line 430 of file qgsmeshdataset.cpp.

◆ verticalLevels()

QVector< double > QgsMesh3DDataBlock::verticalLevels ( ) const

Returns the vertical levels height.

Definition at line 412 of file qgsmeshdataset.cpp.

◆ verticalLevelsCount()

QVector< int > QgsMesh3DDataBlock::verticalLevelsCount ( ) const

Returns number of vertical level above 2d faces.

Definition at line 394 of file qgsmeshdataset.cpp.

◆ volumesCount()

int QgsMesh3DDataBlock::volumesCount ( ) const

Returns number of volumes stored in the buffer.

Definition at line 389 of file qgsmeshdataset.cpp.

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

/build/qgis-3.99.0+git20250718+f78f5286a64+99sid/src/core/mesh/qgsmeshdataset.h
/build/qgis-3.99.0+git20250718+f78f5286a64+99sid/src/core/mesh/qgsmeshdataset.cpp

Public Member Functions