Class: QgsMeshEditForceByPolylines

Derived from QgsMeshEditForceByLine that forces mesh based on polyline.

Forcing lines consist of line that the faces are forced to follow, that is edges of encountered faces have to be on theses lines.

Caller of this class has to add the lines from QgsGeometry instances with addLineFromGeometry() or addLinesFromGeometries() before applying the edition with QgsMeshEditor.advancedEdit()

Added in version 3.22.

Class Hierarchy

Base classes

QgsMeshEditForceByLine	Forces mesh editing based on a line.
QgsMeshAdvancedEditing	Abstract class that can be derived to implement advanced editing on mesh.

Methods

addLineFromGeometry	Adds a input forcing line geometry in rendering coordinates
addLinesFromGeometries	Adds a list of input forcing lines geometry in rendering coordinates

class qgis.core.QgsMeshEditForceByPolylines

Bases: QgsMeshEditForceByLine

addLineFromGeometry(self, geom: QgsGeometry)

Adds a input forcing line geometry in rendering coordinates

Note

if the geometry is not 3D, the default Z value will be used for the Z value of the geometry’s vertices. This default Z value has to be set before adding the geometry (setDefaultZValue()

Parameters:

geom (QgsGeometry)

addLinesFromGeometries(self, geometries: Iterable[QgsGeometry])

Adds a list of input forcing lines geometry in rendering coordinates

Note

if the geometry is not 3D, the default Z value will be used for the Z value of the geometry’s vertices. This default Z value has to be set before adding the geometry (setDefaultZValue()

Parameters:

geometries (Iterable[QgsGeometry])