Add files via upload

Makefile

@@ -1,5 +1,5 @@
-ctenna: main.o hb9cv.o jpole.o
+ctenna: main.o hb9cv.o jpole.o groundplane.c
-	gcc -o ctenna main.o hb9cv.o jpole.o
+	gcc -o ctenna main.o hb9cv.o jpole.o groundplane.c
 
 main.o: main.c
 	gcc -c main.c
@@ -9,3 +9,6 @@ hb9cv.o: hb9cv.c
 
 jpole.o: jpole.c
 	gcc -c jpole.c
+
+groundplane.o: groundplane.c
+	gcc -c groundplane.c

ctenna.cbp

@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
+<CodeBlocks_project_file>
+	<FileVersion major="1" minor="6" />
+	<Project>
+		<Option title="ctenna" />
+		<Option execution_dir="../Constenna" />
+		<Option pch_mode="2" />
+		<Option compiler="gcc" />
+		<Build>
+			<Target title="Debug">
+				<Option output="bin/Debug/Constenna" prefix_auto="1" extension_auto="1" />
+				<Option object_output="obj/Debug/" />
+				<Option type="1" />
+				<Option compiler="gcc" />
+				<Compiler>
+					<Add option="-g" />
+				</Compiler>
+			</Target>
+			<Target title="Release">
+				<Option output="bin/Release/ctenna_win10_amd64" prefix_auto="1" extension_auto="1" />
+				<Option object_output="obj/Release/" />
+				<Option type="1" />
+				<Option compiler="gcc" />
+				<Compiler>
+					<Add option="-O2" />
+				</Compiler>
+				<Linker>
+					<Add option="-s" />
+				</Linker>
+			</Target>
+		</Build>
+		<Compiler>
+			<Add option="-Wall" />
+		</Compiler>
+		<Unit filename="Makefile" />
+		<Unit filename="groundplane.c">
+			<Option compilerVar="CC" />
+		</Unit>
+		<Unit filename="groundplane.h" />
+		<Unit filename="hb9cv.c">
+			<Option compilerVar="CC" />
+		</Unit>
+		<Unit filename="hb9cv.h" />
+		<Unit filename="jpole.c">
+			<Option compilerVar="CC" />
+		</Unit>
+		<Unit filename="jpole.h" />
+		<Unit filename="main.c">
+			<Option compilerVar="CC" />
+		</Unit>
+		<Extensions />
+	</Project>
+</CodeBlocks_project_file>

groundplane.c

@@ -0,0 +1,51 @@
+/*
+Lambda/4 Groundplane Antanna Calculator
+Copyright (C) 2021  Thomas Kummer
+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 version 3 of the License, or
+(at your option) any later 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, see <https://www.gnu.org/licenses/>.
+*/
+
+#include <stdio.h>
+#include "groundplane.h"
+
+void gp_calc(float *f, float *unit_factor, float *lambda, float *l1, float *l2){
+    *lambda = ( 29971000 / *f ) / 100;
+    *l1 = (0.96 * *lambda * 0.25) * *unit_factor;
+    *l2 = (0.96 * *lambda * 0.28) * *unit_factor;
+}
+
+void gp_print(float *f, float *unit_factor, float *lambda, float *l1, float *l2, int *unit_index){
+    printf(" Calculated for %f mHz\n", *f);
+    printf("\n");
+    printf("   Vertical Radiator %f ", *l1); switch(*unit_index){ case 1: printf("mm\n"); break; case 2: printf("inch\n"); break; };
+    printf("             Radials %f ", *l2); switch(*unit_index){ case 1: printf("mm\n"); break; case 2: printf("inch\n"); break; };
+    printf("\n");
+    printf("\n");
+    printf("                           O\n");
+    printf("                           I\n");
+    printf("                           I\n");
+    printf("                 Radiator  I\n");
+    printf("                           I\n");
+    printf("                           I\n");
+    printf("                           I\n");
+    printf("                           I\n");
+    printf("                        ___|___         \n");
+    printf("                       /'  |  '\\       \n");
+    printf("                       \\.__|__./       \n");
+    printf("                      /|  50   |\\      \n");
+    printf("                     / |  Ohm  | \\     \n");
+    printf("            Radial  /  ~~~~~~~~~  \\    \n");
+    printf("                   /               \\   \n");
+    printf("                  /                 \\  \n");
+    printf("\n");
+    printf("                3 - 6 radials are usual \n");
+    printf("\n");
+}

groundplane.h

@@ -0,0 +1,21 @@
+/*
+Copyright (C) 2021  Thomas Kummer
+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 version 3 of the License, or
+(at your option) any later 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, see <https://www.gnu.org/licenses/>.
+*/
+
+#ifndef GROUNDPLANE_H_
+#define GROUNDPLANE_H_
+
+void gp_calc();
+void gp_print();
+
+#endif // GROUNDPLANE_H_

main.c

@@ -16,10 +16,11 @@ along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #include <stdio.h>
 #include "hb9cv.h"
 #include "jpole.h"
+#include "groundplane.h"
 //#include <stdlib.h>
 
 void clear_scr(void){
-	printf("\033[H");  //brings cursor home
+	//printf("\033[H");  //brings cursor home
 	printf("\x1b[2J"); //clears screen
 }
 
@@ -105,7 +106,10 @@ int main(){
                     jpole_calc(&f, &unit_factor,&lambda, &l1, &l2, &l3, &l4, &raddiam);
                     jpole_print(&f ,&unit_factor, &lambda, &l1, &l2, &l3, &l4, &raddiam, &unit_index);
                     break;
-            case 4: printf("Not yet"); break;
+            case 4: clear_scr();
+                    gp_calc(&f, &unit_factor,&lambda, &l1, &l2);
+                    gp_print(&f ,&unit_factor, &lambda, &l1, &l2, &unit_index);
+                    break;
             case 5: clear_scr();
                     hb9cv_calc(&f ,&unit_factor, &lambda, &l1, &l2, &l3, &l4, &l5, &bdiam, &raddiam);
                     hb9cv_print(&f ,&unit_factor, &lambda, &l1, &l2, &l3, &l4, &l5, &bdiam, &raddiam, &unit_index);