QgsPolygon3DSymbol class

3 3D symbol that draws polygon geometries as planar polygons, optionally extruded (with added walls).

Reference

Base classes

class QgsAbstract3DSymbol: 3 Abstract base class for 3D symbols that are used by VectorLayer3DRenderer objects.

Constructors, destructors, conversion operators

QgsPolygon3DSymbol() defaulted: Constructor for QgsPolygon3DSymbol.

Public functions

auto addBackFaces() const -> bool: Returns whether also triangles facing the other side will be created.
auto altitudeBinding() const -> Qgs3DTypes::AltitudeBinding: Returns method that determines how altitude is bound to individual vertices.
auto altitudeClamping() const -> Qgs3DTypes::AltitudeClamping: Returns method that determines altitude (whether to clamp to feature to terrain)
auto clone() const -> QgsAbstract3DSymbol* override: Returns a new instance of the symbol with the same settings.
auto cullingMode() const -> Qgs3DTypes::CullingMode: Returns front/back culling mode.
auto extrusionHeight() const -> float: Returns extrusion height (in map units)
auto height() const -> float: Returns height (altitude) of the symbol (in map units)
auto invertNormals() const -> bool: Returns whether the normals of triangles will be inverted (useful for fixing clockwise / counter-clockwise face vertex orders)
auto material() const -> QgsPhongMaterialSettings: Returns material used for shading of the symbol.
void readXml(const QDomElement& elem, const QgsReadWriteContext& context) override: Reads symbol configuration from the given DOM element.
void setAddBackFaces(bool add): Sets whether also triangles facing the other side will be created.
void setAltitudeBinding(Qgs3DTypes::AltitudeBinding altBinding): Sets method that determines how altitude is bound to individual vertices.
void setAltitudeClamping(Qgs3DTypes::AltitudeClamping altClamping): Sets method that determines altitude (whether to clamp to feature to terrain)
void setCullingMode(Qgs3DTypes::CullingMode mode): Sets front/back culling mode.
void setExtrusionHeight(float extrusionHeight): Sets extrusion height (in map units)
void setHeight(float height): Sets height (altitude) of the symbol (in map units)
void setInvertNormals(bool invert): Sets whether the normals of triangles will be inverted (useful for fixing clockwise / counter-clockwise face vertex orders)
void setMaterial(const QgsPhongMaterialSettings& material): Sets material used for shading of the symbol.
auto type() const -> QString override: Returns identifier of symbol type. Each 3D symbol implementation should return a different type.
void writeXml(QDomElement& elem, const QgsReadWriteContext& context) const override: Writes symbol configuration to the given DOM element.

Function documentation

bool QgsPolygon3DSymbol::addBackFaces() const

Returns whether also triangles facing the other side will be created.

Useful if input data have inconsistent order of vertices

void QgsPolygon3DSymbol::setAddBackFaces(bool add)

Sets whether also triangles facing the other side will be created.