+++ /dev/null
-/* 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
-
-*/
-
-/* This routines checkes for short circuits in the image. Clearly, it is
-should not possible to have a 1V conductor touching a -1 V conductor.
-
-Although currently the software does not support the use of a floating
-conductor (an anea of fixed, but undefined) voltage, error messages
-to take this into account have been included, but commentted out.*/
-
-
-#include "config.h"
-
-
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-
-#include "definitions.h"
-
-extern int width, height;
-extern unsigned char **oddity;
-
-/* This checks for shorts. We only check to the right (increasing w) and below (increasing h)
-since its pointless checking all directions when one moves to an adjacent pixel later */
-void check_for_shorts(void)
-{
- int w, h;
-
- for(h=1;h<height-1;h++)
- {
- for(w=1; w<width-1;w++)
- {
- if( oddity[w][h]==CONDUCTOR_ZERO_V )
- {
- /* Check to see if the pixel below is shorted */
- if((oddity[w][h+1]==CONDUCTOR_PLUS_ONE_V) || (oddity[w][h+1]==CONDUCTOR_MINUS_ONE_V) || (oddity[w][h+1]==CONDUCTOR_FLOATING))
- {
- fprintf(stderr,"\n**************ERROR******************\n");
- fprintf(stderr,"Pixel (%d,%d) is set to 0V, but pixel\n",w,h);
- fprintf(stderr,"(%d,%d) is set to a different fixed voltage\n",w,h+1);
- fprintf(stderr,"creating a short. Please correct this.\n");
- exit_with_msg_and_exit_code("",CONDUCTOR_ZERO_V);
- }
- /* Check to see if the pixel to the right is shorted */
- else if((oddity[w+1][h]==CONDUCTOR_PLUS_ONE_V) || (oddity[w+1][h]==CONDUCTOR_MINUS_ONE_V) || (oddity[w+1][h]==CONDUCTOR_FLOATING))
- {
- fprintf(stderr,"\n**************ERROR******************\n");
- fprintf(stderr,"Pixel (%d,%d) is set to 0V, but pixel\n",w,h);
- fprintf(stderr,"(%d,%d) is set to a different fixed voltage\n",w+1,h);
- fprintf(stderr,"creating a short. Please correct this.\n");
- exit_with_msg_and_exit_code("",CONDUCTOR_ZERO_V);
- }
-
- } /* end of if(oddity==CONDUCTOR_ZERO_V) */
-
- else if( oddity[w][h]==CONDUCTOR_PLUS_ONE_V )
- {
- /* Check for a short of the pixel below */
- if((oddity[w][h+1]==CONDUCTOR_ZERO_V) || \
- (oddity[w][h+1]==CONDUCTOR_MINUS_ONE_V) \
- || (oddity[w][h+1]==CONDUCTOR_FLOATING))
- {
- fprintf(stderr,"\n**************ERROR******************\n");
- fprintf(stderr,"Pixel (%d,%d) is set to 1 V, but pixel\n",w,h);
- fprintf(stderr,"(%d,%d) is set to a different fixed voltage\n",w,h+1);
- fprintf(stderr,"creating a short. Please correct this.\n");
- exit_with_msg_and_exit_code("",CONDUCTOR_PLUS_ONE_V);
- }
- /* Check to see if the pixel to the right is shorted */
- else if((oddity[w+1][h]==CONDUCTOR_ZERO_V) || \
- (oddity[w+1][h]==CONDUCTOR_MINUS_ONE_V) \
- || (oddity[w+1][h]==CONDUCTOR_FLOATING))
- {
- fprintf(stderr,"\n**************ERROR******************\n");
- fprintf(stderr,"Pixel (%d,%d) is set to 1 V, but pixel\n",w,h);
- fprintf(stderr,"(%d,%d) is set to a different fixed voltage\n",w+1,h);
- fprintf(stderr,"creating a short. Please correct this.\n");
- exit_with_msg_and_exit_code("",CONDUCTOR_PLUS_ONE_V);
- }
- } /* end of if(oddity==CONDUCTOR_PLUS_ONE_V) */
-
- else if( oddity[w][h]==CONDUCTOR_MINUS_ONE_V )
- {
- /* Check for a short of the pixel below */
- if((oddity[w][h+1]==CONDUCTOR_ZERO_V) || \
- (oddity[w][h+1]==CONDUCTOR_PLUS_ONE_V) \
- || (oddity[w][h+1]==CONDUCTOR_FLOATING))
- {
- fprintf(stderr,"\n**************ERROR******************\n");
- fprintf(stderr,"Pixel (%d,%d) is set to -1 V, but pixel\n",w,h);
- fprintf(stderr,"(%d,%d) is set to a different fixed voltage\n",w,h+1);
- fprintf(stderr,"creating a short. Please correct this.\n");
- exit_with_msg_and_exit_code("",CONDUCTOR_MINUS_ONE_V);
- }
- /* Check to see if the pixel to the right is shorted */
- if((oddity[w][h+1]==CONDUCTOR_ZERO_V) || \
- (oddity[w][h+1]==CONDUCTOR_PLUS_ONE_V) \
- || (oddity[w][h+1]==CONDUCTOR_FLOATING))
- {
- fprintf(stderr,"\n**************ERROR******************\n");
- fprintf(stderr,"Pixel (%d,%d) is set to -1 V, but pixel\n",w,h);
- fprintf(stderr,"(%d,%d) is set to a different fixed voltage\n",w,h+1);
- fprintf(stderr,"creating a short. Please correct this.\n");
- exit_with_msg_and_exit_code("",CONDUCTOR_MINUS_ONE_V);
- }
- } /* end of if(oddity==CONDUCTOR_PLUS_ONE_V) */
- } /* end of for w.. loop */
- } /* end of for h .. loop */
-} /* end of function check_for_shorts */
-
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