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 modeling matrices have been pushed on the matrix stack, modeling and world coordinates are identical.

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