SliceO_Window::Inf_2

This method enable you to convert coordinates in "Inf" space to coordinates in "Wnd" space.

Syntax

Point_2D Inf_2_Wnd(

Point_2D pos_inf

) ;

Region_2D Inf_2_Wnd(

Region_2D reg_inf

) ;

Parameters

pos_inf

2D point to convert from "Inf" space to "Wnd" space.

reg_inf

2D region to convert from "Inf" space to "Wnd" space.

Return value

This method return either a transformed 2D point or a 2D region depending on its arguments.

Remarks

The transformation is computed by:

·Substracting the "val_x" and "val_y" slider values from horizontal and vertical the infinite coordinates.

·Inversing the vertical coordinates

// Inf_2_Wnd()

// param: pos_inf (Point_2D) The position in "Inf" space

// return: (Point_2D) new coord in "Wnd" space

// ----------------------------------------------------------------------------

Point_2D SliceO_Window::Inf_2_Wnd( Point_2D pos_inf )

{

Point_2D pos_wnd( COORD_WND ) ;

int val_x = (int) (this->val_x.Cur_Value) ;

int val_y = (int) (this->val_y.Cur_Value) ;

// --- just remove the current slider values ---

pos_wnd.Set( pos_inf.x - val_x,

(m_dim_y) - (pos_inf.y - val_y) ) ;

return( pos_wnd ) ;

}

Requirements

Header:

sliceO_include.hpp

Library:

sliceO_Structures.lib

Example