WorldCanvas event-based polygon region drawer. More...

#include <MWCPTRegion.h>

Inheritance diagram for casa::MWCPTRegion:

Public Member Functions
	MWCPTRegion (Display::KeySym keysym=Display::K_Pointer_Button3)
	Constructor.
virtual	~MWCPTRegion ()
	Destructor.
Protected Member Functions
virtual void	doubleInside ()
	Handle double-click inside the polygon.
virtual void	regionReady ()
	This function is called when a region is deliberately "finished" by the user.
void	getWorldCoords (Vector< Double > &x, Vector< Double > &y)
	get the world coords of the current polygon region
void	getLinearCoords (Vector< Double > &x, Vector< Double > &y)
	get the linear coords of the current ploygon region

Detailed Description

WorldCanvas event-based polygon region drawer.

Intended use:

Public interface

Review Status

<prerequisites> WCRectTool </prerequisites>

Etymology

WCPTRegion stands for WorldCanvas Polygon Tool Region

Synopsis

This class finalises the functionality in WCRectTool to implement event-based drawing of polygonal regions on a WorldCanvas. Double clicking inside the constructed polygon emits the region, whilst pressing Escape cancels the region.

Example

Motivation

Polygonal regions are the most common regions, and constructing them visually can be very efficient.

To Do

Nothing known

Definition at line 79 of file MWCPTRegion.h.

Constructor & Destructor Documentation

casa::MWCPTRegion::MWCPTRegion ( Display::KeySym keysym = Display::K_Pointer_Button3 )

Constructor.

virtual casa::MWCPTRegion::~MWCPTRegion ( ) [virtual]

Destructor.

Member Function Documentation

virtual void casa::MWCPTRegion::doubleInside ( ) [protected, virtual]

Handle double-click inside the polygon.

Invokes regionReady().

Reimplemented from casa::MWCPolyTool.

void casa::MWCPTRegion::getLinearCoords	(	Vector< Double > &	x,
		Vector< Double > &	y
	)		`[protected]`

get the linear coords of the current ploygon region

void casa::MWCPTRegion::getWorldCoords	(	Vector< Double > &	x,
		Vector< Double > &	y
	)		`[protected]`

get the world coords of the current polygon region

virtual void casa::MWCPTRegion::regionReady ( ) [inline, protected, virtual]

This function is called when a region is deliberately "finished" by the user.

It can be implemented to do further actions, such as report the region to the application.

Reimplemented in casa::QtOldPTRegion.

Definition at line 97 of file MWCPTRegion.h.

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

code/display/DisplayEvents/MWCPTRegion.h

Public Member Functions

Protected Member Functions