Functions
CORE_EXPORT QgsRasterBlock *	exportRasterBlock (const QgsMeshLayer &layer, const QgsMeshDatasetIndex &datasetIndex, const QgsCoordinateReferenceSystem &destinationCrs, const QgsCoordinateTransformContext &transformContext, double mapUnitsPerPixel, const QgsRectangle &extent, QgsRasterBlockFeedback *feedback=nullptr)
	Exports mesh layer's dataset values as raster block. More...

bool	isInTriangleFace (const QgsPointXY point, const QgsMeshFace &face, const QVector< QgsMeshVertex > &vertices)
	Tests if point p is on the face defined with vertices. More...

CORE_EXPORT QSet< int >	nativeEdgesFromEdges (const QList< int > &edgesIndexes, const QVector< int > &edgesToNativeEdges)
	Returns unique native faces indexes from list of triangle indexes. More...

CORE_EXPORT QSet< int >	nativeFacesFromTriangles (const QList< int > &triangleIndexes, const QVector< int > &trianglesToNativeFaces)
	Returns unique native faces indexes from list of triangle indexes. More...

CORE_EXPORT QSet< int >	nativeVerticesFromEdges (const QList< int > &edgesIndexes, const QVector< QgsMeshEdge > &edges)
	Returns unique native faces indexes from list of vertices of triangles. More...

CORE_EXPORT QSet< int >	nativeVerticesFromTriangles (const QList< int > &triangleIndexes, const QVector< QgsMeshFace > &triangles)
	Returns unique native vertex indexes from list of vertices of triangles. More...

CORE_EXPORT QgsGeometry	toGeometry (const QgsMeshFace &face, const QVector< QgsMeshVertex > &vertices)
	Returns face as polygon geometry. More...

CORE_EXPORT std::unique_ptr< QgsPolygon >	toPolygon (const QgsMeshFace &face, const QVector< QgsMeshVertex > &vertices)
	Returns face as polygon geometry, caller is responsible for delete. More...

Function Documentation

◆ exportRasterBlock()

QgsRasterBlock * QgsMeshUtils::exportRasterBlock	(	const QgsMeshLayer &	layer,
		const QgsMeshDatasetIndex &	datasetIndex,
		const QgsCoordinateReferenceSystem &	destinationCrs,
		const QgsCoordinateTransformContext &	transformContext,
		double	mapUnitsPerPixel,
		const QgsRectangle &	extent,
		QgsRasterBlockFeedback *	feedback = `nullptr`
	)

Exports mesh layer's dataset values as raster block.

The function always fetches native mesh and dataset data from data provider and calculates triangular mesh

Parameters

layer	mesh layer
datasetIndex	index from layer defining group and dataset (time) to export
destinationCrs	destination/map CRS. Used to create triangular mesh from native mesh
transformContext	Transform context to transform layer CRS to destination CRS
mapUnitsPerPixel	map units per pixel for block
extent	extent of block in destination CRS
feedback	optional raster feedback object for cancellation/preview

Returns: raster block with Float::64 values. nullptr on error

Since: QGIS 3.6

Definition at line 179 of file qgsmeshlayerinterpolator.cpp.

◆ isInTriangleFace()

bool QgsMeshUtils::isInTriangleFace	(	const QgsPointXY	point,
		const QgsMeshFace &	face,
		const QVector< QgsMeshVertex > &	vertices
	)

Tests if point p is on the face defined with vertices.

Since: QGIS 3.12

Definition at line 563 of file qgstriangularmesh.cpp.

◆ nativeEdgesFromEdges()

QSet< int > QgsMeshUtils::nativeEdgesFromEdges	(	const QList< int > &	edgesIndexes,
		const QVector< int > &	edgesToNativeEdges
	)

Returns unique native faces indexes from list of triangle indexes.

Since: QGIS 3.14

Definition at line 545 of file qgstriangularmesh.cpp.

◆ nativeFacesFromTriangles()

QSet< int > QgsMeshUtils::nativeFacesFromTriangles	(	const QList< int > &	triangleIndexes,
		const QVector< int > &	trianglesToNativeFaces
	)

Returns unique native faces indexes from list of triangle indexes.

Since: QGIS 3.4

Definition at line 540 of file qgstriangularmesh.cpp.

◆ nativeVerticesFromEdges()

QSet< int > QgsMeshUtils::nativeVerticesFromEdges	(	const QList< int > &	edgesIndexes,
		const QVector< QgsMeshEdge > &	edges
	)

Returns unique native faces indexes from list of vertices of triangles.

Since: QGIS 3.14

Definition at line 595 of file qgstriangularmesh.cpp.

◆ nativeVerticesFromTriangles()

QSet< int > QgsMeshUtils::nativeVerticesFromTriangles	(	const QList< int > &	triangleIndexes,
		const QVector< QgsMeshFace > &	triangles
	)

Returns unique native vertex indexes from list of vertices of triangles.

Since: QGIS 3.14

Definition at line 581 of file qgstriangularmesh.cpp.

◆ toGeometry()

QgsGeometry QgsMeshUtils::toGeometry	(	const QgsMeshFace &	face,
		const QVector< QgsMeshVertex > &	vertices
	)

Returns face as polygon geometry.

Definition at line 524 of file qgstriangularmesh.cpp.

◆ toPolygon()

std::unique_ptr< QgsPolygon > QgsMeshUtils::toPolygon	(	const QgsMeshFace &	face,
		const QVector< QgsMeshVertex > &	vertices
	)

Returns face as polygon geometry, caller is responsible for delete.

Definition at line 509 of file qgstriangularmesh.cpp.

Functions