wc_to_vdc(3G)

NAME

wc_to_vdc − transform world coordinate point into virtual device coordinate point using current transformation matrix

SYNOPSIS

C Syntax:

void wc_to_vdc(fildes,wcx,wcy,wcz,vdcx,vdcy,vdcz);
int fildes;
float wcx,wcy,wcz,*vdcx,*vdcy,*vdcz;

FORTRAN77 Syntax:

subroutine wc_to_vdc(fildes,wcx,wcy,wcz,vdcx,vdcy,vdcz)
integer*4 fildes
real wcx,wcy,wcx,vdcx,vdcy,vdcz

Pascal Syntax:

procedure wc_to_vdc(fildes:integer;wcx,wcy,wcz:real;
var vdcx,vdcy,vdcz:real);

DESCRIPTION

Input Parameters

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

wcx,wcy,wcz Define a point in world coordinate space.

Output Parameters

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

Discussion

This function is now implemented by the transform_point routine. It is suggested that transform_point be called directly.

This routine is equivalent to calling transform_point with its mode parameter set to MC_TO_VDC. If no modelling matrices have been pushed on the matrix stack, modelling and world coordinates are identical.

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