--- /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 gmail.com
+
+*/
+#include "config.h"
+
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+#include "definitions.h"
+
+void fill_image_vector_with_data(unsigned char *image_vector, int colour_Er1, int colour_Er2, struct transmission_line_properties pcb)
+{
+ int i, j, red=0, green=0, blue=0, vector_original=0;
+ int right_edge_of_LH_GP;
+ for(j=0;j<pcb.H;++j)
+ {
+ for(i=0;i<pcb.W; ++i)
+ {
+
+ red=colour_Er1/(256*256); /* Fill whole region with Er1 (normally vacuum/air)*/
+ green=colour_Er1/256;
+ blue=colour_Er1%256;
+
+ /* Put a small border in green. Only one pixel is needed, but
+ I'll put a few more. */
+ if( (i<BORDER) || (i>pcb.W-BORDER-1) || (j<BORDER) || (j>pcb.H-BORDER-1))
+ {
+ red=0x00;
+ green=0xff;
+ blue=0x00;
+ }
+
+ /* Put the dielectric for the PCB in */
+ if((i >= BORDER) && (i <pcb.W-BORDER ) && (j >= BORDER) && (j < pcb.h+BORDER))
+ {
+ red=colour_Er2/(256*256); /* Fill in areas with Er2 (normally PCB substrate)*/
+ green=colour_Er2/256;
+ blue=colour_Er2%256;
+ }
+
+ /* Put the metal top LH surface of the PCB groundplane */
+ right_edge_of_LH_GP=(pcb.W/2-pcb.s/2-pcb.w-pcb.g)-BORDER;
+ if((i >= BORDER) && (i <=right_edge_of_LH_GP ) && (j >= pcb.h+BORDER) && (j < pcb.h+pcb.t+BORDER))
+ {
+ red=0; /* Fill in left hand groundplane on top of pcb */
+ green=255;
+ blue=0;
+ }
+ /* Left hand coupler, could be +1 V or -1 V it does not matter, as long as right one is opposite */
+ if( (i > right_edge_of_LH_GP + pcb.g ) && (i <= right_edge_of_LH_GP + pcb.g+pcb.w) && (j >= pcb.h+BORDER) && (j < pcb.h+pcb.t+BORDER))
+ {
+ red=0xff; /* Left hand coupler made to be +1 V */
+ green=0;
+ blue=0;
+ }
+ /* Right and coupler, set to -1 V */
+ if( (i > right_edge_of_LH_GP + pcb.g +pcb.w+pcb.s) && (i <= right_edge_of_LH_GP + pcb.g+pcb.w+pcb.s+pcb.w) && (j >= pcb.h+BORDER) && (j < pcb.h+pcb.t+BORDER))
+ {
+ red=0; /* Right hand coupler made to be -1 V */
+ green=0;
+ blue=0xff;
+ }
+ if( (i > right_edge_of_LH_GP + pcb.g+pcb.w+pcb.s+pcb.w+pcb.g) && (i <= pcb.W-BORDER) && (j >= pcb.h+BORDER) && (j < pcb.h+pcb.t+BORDER))
+ {
+ red=0; /* Right hand ground plane in place */
+ green=0xff;
+ blue=0;
+ }
+ image_vector[vector_original]=blue;
+ image_vector[vector_original+1]=green;
+ image_vector[vector_original+2]=red;
+ vector_original+=3;
+ }
+ }
+}