SliceO_Frame::Frm_2

This method enable you to convert coordinates in "Frm" space to coordinates in 3D "Org" space.

Syntax

Point_3D Frm_2_Org(

Point_2D pos_frm

) ;

Point_3D Frm_2_Org(

float x,

float y,

float z=0

) ;

Region_3D Frm_2_Org(

Region_2D reg_frm

) ;

Parameters

pos_frm

2D point to convert from "Frm" space to "Org" space.

x, y, z

Coordinates in "Frm" space to convert in "Org" space. By default, z=0 and the point defined by x,y is in the plane of the frame.

reg_frm

2D region to convert from "Frm" space to "Org" space. The thickness of the created region is the thickness of the frame.

Return value

This method return either a transformed 3D point or a 3D region depending on its arguments.

Remarks

The transformation is computed by transforming the 2D coordinates with the m_mat_2D_3D matrix.

Requirements

Header:

sliceO_include.hpp

Library:

sliceO_Structures.lib

Example

Computing 3D cursor coordinates for "Pixel Info" tool.

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

// Tool_Pixel_Update_Coord

// Param: (void)

// Return: (void)

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

void Tool_Pixel_Update_Coord( char *str, SliceO_Frame *frame, Point_2D *pos )

{

if ( ! frame ) {

sprintf( str, "Coord. x: ---.-- y: ---.-- z: ---.--" ) ;

} else {

Point_3D pos_3D = frame->Frm_2_Org( pos->x, pos->y ) ;

char x[20], y[20], z[20], units[20] ;

strcpy( x, Fct_Float_2_Dist( pos_3D.x ) ) ;

strcpy( y, Fct_Float_2_Dist( pos_3D.y ) ) ;

strcpy( z, Fct_Float_2_Dist( pos_3D.z, units ) ) ;

sprintf( str, "Coord. (%s) x:%s y:%s z:%s", units, x, y, z ) ;

}