## SYNOPSIS

#include "mpe.h"

int MPE_Draw_logic( graph, function )

MPE_XGraph graph;

int function;

## INPUT PARAMETERS

**graph**- - MPE graphics handle
**function**-
- integer specifying one of the following:

*MPE_LOGIC_COPY*- no logic, just copy the pixel

*MPE_LOGIC_XOR*- xor the new pixel with the existing one and many more... see*mpe_graphics.h*

## NOTES FOR FORTRAN INTERFACE

The Fortran interface to this routine is different from its C counterpart and it has an additional argument, ierr, at the end of the argument list, i.e. the returned function value (the error code) in C interface is returned as the additional argument in Fortran interface. The Fortran interface is invoked with the CALL statement.All MPI and MPE objects, MPI_Comm, MPE_XGraph and MPE_Color, are of type INTEGER in Fortran.

## LOCATION

mpe_graphics.c