-/* atlc - arbitrary transmission line calculator, for the analysis of
-transmission lines are directional couplers.
-
-Copyright (C) 2002. Dr. David Kirkby, PhD (G8WRB).
-
-This program is free software; you can redistribute it and/or
-modify it under the terms of the GNU General Public License
-as published by the Free Software Foundation; either package_version 2
-of the License, or (at your option) any later package_version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
-USA.
-
-Dr. David Kirkby, e-mail drkirkby at ntlworld.com
-
-*/
-
-/* When calculationg the properties of couplers it is necessary to swap
-around the voltages on the conductors. First we consider the voltages as
-present, which will be positive and negative. Next the negative pixels
-must be changed to positive, to calculate the even mode impedance. This
-routine does the swapping around, based on the value of the parameter
-oddity, which will be set to CONDUCTOR_PLUS_ONE_V or
-
-CONDUCTOR_MINUS_ONE_V in definitions.h */
-
-#include "config.h"
-
-#include "definitions.h"
-
-extern int width, height;
-unsigned char **oddity;
-extern double **Vij;
-
-/* This swaps any conductor orignally at -1 V to +1 V. Any
-dielectric is set to zero volts. This is used in computation
-of couplers. */
-
-void swap_conductor_voltages()
-{
- int i, j;
- int pixel;
- for(i=0;i<width;++i)
- {
- for(j=0;j<height;++j)
- {
- pixel=oddity[i][j];
- if(pixel==CONDUCTOR_MINUS_ONE_V){
- Vij[i][j]=+1.0;
- oddity[i][j]=CONDUCTOR_PLUS_ONE_V;
- }
- }
- }
-}