Curve Class Reference

A Curve Geometry, implemented to fullfil OGC Spec. More...

#include <curve.h>

Inheritance diagram for Curve:

Public Slots
virtual void	setVisible (bool visible)
	if visible is true, the layer is made visible More...

Signals
void	geometryClicked (Geometry *geometry, QPoint point)
	This signal is emitted when a Geometry is clicked. More...
void	positionChanged (Geometry *geom)
	A Geometry emits this signal, when its position gets changed. More...

Public Member Functions
virtual QRectF	boundingBox ()=0
	returns the BoundingBox More...
bool	Equals (Geometry *geom)
bool	isVisible () const
	returns true if this Geometry is visible More...
QString	name () const
	returns the name of this Geometry More...
Geometry *	parentGeometry () const
	returns the parent Geometry of this Geometry More...
QPen *	pen () const
	returns the QPen which is used on drawing More...
void	setName (QString name)
	sets the name of the geometry More...
QString	toString ()
	returns a String representation of this Geometry More...

Detailed Description

A Curve Geometry, implemented to fullfil OGC Spec.

The Curve class is used by LineString as parent class. This class could not be used directly.

From the OGC Candidate Implementation Specification: "A Curve is a 1-dimensional geometric object usually stored as a sequence of Points, with the subtype of Curve specifying the form of the interpolation between Points. This specification defines only one subclass of Curve, LineString, which uses a linear interpolation between Points."

Author

Kai Winter kaiwi.nosp@m.nter.nosp@m.@gmx..nosp@m.de

Member Function Documentation

virtual QRectF boundingBox ( )

pure virtualinherited

returns the BoundingBox

The bounding box in world coordinates

Returns

the BoundingBox

Implemented in Point, and LineString.

Referenced by Layer::addGeometry(), MapControl::isGeometryVisible(), Layer::removeGeometry(), and Geometry::setVisible().

bool Equals ( Geometry *  geom )

inherited

returns true if the given Geometry is equal to this Geometry not implemented yet!

Parameters

geom	The Geometry to be tested

Returns

true if the given Geometry is equal to this

void geometryClicked ( Geometry *  geometry, QPoint  point  )

signalinherited

This signal is emitted when a Geometry is clicked.

A Geometry is clickable, if the containing layer is clickable. The objects emits a signal if it gets clicked

Parameters

geometry	The clicked Geometry
point	-unused-

Referenced by Point::Touches().

bool isVisible ( ) const

inherited

returns true if this Geometry is visible

Returns

true if this Geometry is visible

Referenced by Point::Touches().

QString name ( ) const

inherited

returns the name of this Geometry

Returns

the name of this Geometry

Referenced by Geometry::setName().

Geometry * parentGeometry ( ) const

inherited

returns the parent Geometry of this Geometry

A LineString is a composition of many Points. This methods returns the parent (the LineString) of a Point

Returns

the parent Geometry of this Geometry

QPen * pen ( ) const

inherited

returns the QPen which is used on drawing

The pen is set depending on the Geometry. A CirclePoint for example takes one with the constructor.

Returns

the QPen which is used for drawing

Referenced by ArrowPoint::ArrowPoint(), CirclePoint::CirclePoint(), LineString::LineString(), ArrowPoint::setPen(), and CirclePoint::setPen().

void positionChanged ( Geometry *  geom )

signalinherited

A Geometry emits this signal, when its position gets changed.

Parameters

geom	the Geometry

void setName ( QString  name )

inherited

sets the name of the geometry

Parameters

name	the new name of the geometry

References Geometry::name().

void setVisible ( bool  visible )

virtualslotinherited

if visible is true, the layer is made visible

Parameters

visible

if the layer should be visible

References Geometry::boundingBox().

QString toString ( )

inherited

returns a String representation of this Geometry

not implemented yet!

Returns

a String representation of this Geometry

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

• curve.h
• curve.cpp