NAME

dc_to_vdc − transform device coordinate point into virtual device coordinate point using the inverse of the current vdc-to-device coordinate transformation. 

SYNOPSIS SYNTAX

C Syntax:

void dc_to_vdc(fildes,dcx,dcy,dcz,vdcx,vdcy,vdcz)
int fildes;
int dcx,dcy,dcz;
float *vdcx,*vdcy,*vdcz;

FORTRAN77 Syntax:

subroutine dc_to_vdc(fildes,dcx,dcy,dcz,vdcx,vdcy,vdcz)
integer*4 fildes
integer*4 dcx,dcy,dcz
real vdcx,vdcy,vdcz

Pascal Syntax:

procedure dc_to_vdc(fildes:integer;dcx,dcy,dcz:integer;
var vdcx,vdcy,vdcz:real);

DESCRIPTION

Input Parameters

fildes Integer file descriptor returned by gopen when an I/O path to a graphics device is opened. 

dcx,dcy,dcz Defines a device coordinate point to be transformed by this procedure. 

Output Parameters

vdcx,vdcy,vdcz Transformed point in virtual device coordinate values. 

Discussion

Dc_to_vdc transforms a point in device coordinates to virtual device coordinate values, using the inverse of the current vdc-to-device coordinates transformation to perform the calculation. 

SEE ALSO

vdc_to_dc(3G) transform_point(3G). 
 

Hewlett-Packard Company  —  May 11, 2021