Base interface for applying a coordinate transformation to geometry objects. More...

#include <Transform.h>

Inheritance diagram for SFCGAL::Transform:

Public Member Functions
	~Transform () override
	Virtual destructor to allow safe cleanup of derived Transform implementations. More...

virtual void	transform (Point &p)=0
	Apply the coordinate transformation to a single Point in place. More...

void	visit (Point &g) override
	Apply the transformation to a Point geometry (visitor override). More...

void	visit (LineString &g) override
	Apply the transformation to a LineString geometry (visitor override). More...

void	visit (Polygon &g) override
	Apply the transformation to a Polygon geometry (visitor override). More...

void	visit (Triangle &g) override
	Apply the transformation to a Triangle geometry (visitor override). More...

void	visit (Solid &g) override
	Apply the transformation to a Solid geometry (visitor override). More...

void	visit (MultiPoint &g) override
	Apply the transformation to a MultiPoint geometry (visitor override). More...

void	visit (MultiLineString &g) override
	Apply the transformation to a MultiLineString geometry (visitor override). More...

void	visit (MultiPolygon &g) override
	Apply the transformation to a MultiPolygon geometry (visitor override). More...

void	visit (MultiSolid &g) override
	Apply the transformation to a MultiSolid geometry (visitor override). More...

void	visit (GeometryCollection &g) override
	Apply the transformation to a GeometryCollection (visitor override). More...

void	visit (PolyhedralSurface &g) override
	Apply the transformation to a PolyhedralSurface geometry (visitor override). More...

void	visit (TriangulatedSurface &g) override
	Apply the transformation to a TriangulatedSurface geometry (visitor override). More...

void	visit (NURBSCurve &g) override
	Apply the transformation to a NURBSCurve geometry (visitor override). More...

Public Member Functions inherited from SFCGAL::GeometryVisitor
virtual	~GeometryVisitor ()
	Default destructor for GeometryVisitor. More...

virtual void	visit (Geometry &geometry)
	Apply this visitor to a generic Geometry reference. More...

Detailed Description

Base interface for applying a coordinate transformation to geometry objects.

Implementations must provide transform(Point&) to define how a single point's coordinates are mapped; all other geometry visitor methods apply that point- level transform to the coordinates contained in their respective geometry types in place.

Constructor & Destructor Documentation

SFCGAL::Transform::~Transform ( )

overridedefault

Virtual destructor to allow safe cleanup of derived Transform implementations.

Member Function Documentation

virtual void SFCGAL::Transform::transform ( Point & p )

pure virtual

Apply the coordinate transformation to a single Point in place.

Implementations should update the point's coordinate values according to the desired transform.

Parameters

p	Point to transform (modified in place).

Implemented in SFCGAL::transform::ForceOrderPoints, SFCGAL::transform::ForceZOrderPoints, SFCGAL::transform::AffineTransform2, SFCGAL::transform::AffineTransform3, SFCGAL::transform::ForceZ, SFCGAL::transform::RoundTransform, SFCGAL::transform::ForceM, and SFCGAL::transform::Force2D.

void SFCGAL::Transform::visit ( Point & g )

overridevirtual

Apply the transformation to a Point geometry (visitor override).

The Point is modified in place.

Parameters

g	Point to transform (modified in place).

Implements SFCGAL::GeometryVisitor.

void SFCGAL::Transform::visit ( LineString & g )

overridevirtual

Apply the transformation to a LineString geometry (visitor override).

Each vertex of the LineString is transformed in place.

Parameters

g	LineString to transform (modified in place).

Implements SFCGAL::GeometryVisitor.

void SFCGAL::Transform::visit ( Polygon & g )

overridevirtual

Apply the transformation to a Polygon geometry (visitor override).

All rings and their vertices are transformed in place.

Parameters

g	Polygon to transform (modified in place).

Implements SFCGAL::GeometryVisitor.

void SFCGAL::Transform::visit ( Triangle & g )

overridevirtual

Apply the transformation to a Triangle geometry (visitor override).

Each vertex of the Triangle is transformed in place.

Parameters

g	Triangle to transform (modified in place).

Implements SFCGAL::GeometryVisitor.

void SFCGAL::Transform::visit ( Solid & g )

overridevirtual

Apply the transformation to a Solid geometry (visitor override).

All constituent faces and vertices of the Solid are transformed in place.

Parameters

g	Solid to transform (modified in place).

Implements SFCGAL::GeometryVisitor.

void SFCGAL::Transform::visit ( MultiPoint & g )

overridevirtual

Apply the transformation to a MultiPoint geometry (visitor override).

Every point in the collection is transformed in place.

Parameters

g	MultiPoint to transform (modified in place).

Implements SFCGAL::GeometryVisitor.

void SFCGAL::Transform::visit ( MultiLineString & g )

overridevirtual

Apply the transformation to a MultiLineString geometry (visitor override).

All lines and their vertices are transformed in place.

Parameters

g	MultiLineString to transform (modified in place).

Implements SFCGAL::GeometryVisitor.

void SFCGAL::Transform::visit ( MultiPolygon & g )

overridevirtual

Apply the transformation to a MultiPolygon geometry (visitor override).

All polygons, rings, and vertices are transformed in place.

Parameters

g	MultiPolygon to transform (modified in place).

Implements SFCGAL::GeometryVisitor.

void SFCGAL::Transform::visit ( MultiSolid & g )

overridevirtual

Apply the transformation to a MultiSolid geometry (visitor override).

All solids and their constituent geometry are transformed in place.

Parameters

g	MultiSolid to transform (modified in place).

Implements SFCGAL::GeometryVisitor.

void SFCGAL::Transform::visit ( GeometryCollection & g )

overridevirtual

Apply the transformation to a GeometryCollection (visitor override).

Each element in the collection is visited and transformed in place.

Parameters

g	GeometryCollection to transform (modified in place).

Implements SFCGAL::GeometryVisitor.

void SFCGAL::Transform::visit ( PolyhedralSurface & g )

overridevirtual

Apply the transformation to a PolyhedralSurface geometry (visitor override).

All faces and their vertices are transformed in place.

Parameters

g	PolyhedralSurface to transform (modified in place).

Implements SFCGAL::GeometryVisitor.

void SFCGAL::Transform::visit ( TriangulatedSurface & g )

overridevirtual

Apply the transformation to a TriangulatedSurface geometry (visitor override).

Apply the transformation to every patch of a TriangulatedSurface.

All triangles and their vertices are transformed in place.

Parameters

g	TriangulatedSurface to transform (modified in place).

Iterates all patches in the given TriangulatedSurface and recursively visits each patch so the transformation is applied to their constituent geometries (control vertices/triangles).

Implements SFCGAL::GeometryVisitor.

void SFCGAL::Transform::visit ( NURBSCurve & g )

overridevirtual

Apply the transformation to a NURBSCurve geometry (visitor override).

Control points (and any relevant coordinate data) of the NURBSCurve are transformed in place.

Parameters

g	NURBSCurve to transform (modified in place).

Reimplemented from SFCGAL::GeometryVisitor.

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation