HOpSelectPolygonOOC

Functions

	`HOpSelectPolygonOOC`
char const *	`GetName`
HBaseOperator *	`Clone`
int	`OnLButtonDown`
int	`OnLButtonDblClk`

Detailed Description

template<typename SelectionSet> class HOpSelectPolygonOOC : public HOpSelectPolygon 

The HSelectPolygonOOC class computes a selection list for OOC points inside a polygonal area. If this class is used by an HBaseView, the view must have an HSelectionSetOOC<SelectionSet> instance for its selection set.

Param SelectionSet:: The selection set type used by HSelectionSetOOC<SelectionSet>

Public Functions

inline HOpSelectPolygonOOC(HBaseView &view)

Constructs an HOpSelectPolygonOOC.

Parameters:: view – A reference to an HBaseView object.

inline virtual char const *GetName()

Returns:: A pointer to a character string denoting the name of the operator, which is “HOpSelectPolygonOOC”.

inline virtual HBaseOperator *Clone()

Creates a new operator which is associated with the same view as the current operator. The user is responsible for deleting the newly created operator.

Returns:: A pointer to a copy of this operator.

inline virtual int OnLButtonDown(HEventInfo &e)

Starts to create a selection lasso that will select points inside it. Each time the left mouse button is pressed, a new vertex is added to the polygon lasso.

Parameters:: e – An HEventInfo object containing information about the current event.
Returns:: A value indicating the status of the event.

inline virtual int OnLButtonDblClk(HEventInfo &e)

Finalizes the selection lasso created by OnLButtonDown and selects points that lie inside the polygon lasso.

Parameters:: e – An HEventInfo object containing information about the current event.
Returns:: A value indicating the status of the event.