globals [qchoice rb finalbit finalbit1 praise initial1 ycord1 asdf ab1 a1 cntr1 arr3-x1 arr3-y1 arr-hrz ab i ci init input1 arr-ver value row num location x_cor y_cor bits fnl_y fnl_x y c1 c2 arr-x arr-y cnt counter arr2-x arr2-y arr3-x arr3-y a c cntr ycord initial temp str] breeds [ vert-arrow horz-arrow box parity-row horz-arrow1 horz-arrow2] to startup ca set qchoice [ 0 1 ] set bits [0 1] set praise ["Awesome!" "You got it!" "Right!" "Correct!" "Perfect!" "Bravo!" "Splendid!"] set input1 " " ask patch-at 9 15 [ ;set plabel-font 12 set plabel-color white set plabel (word "Error Detection using 2D Parity " ) ask patches with [ pycor > 12 ] [set pcolor 103] ] ask patch-at 12 105 [ ask patches with [ pycor < -12 ] [set pcolor 103 ] ] set-default-shape turtles "square" ;initial-bits end to input_from_user startup wait .5 user-message "no of input bits is "+ (no_of_bits_x * no_of_bits_y) let input user-input "enter the input bit string " set x_cor 8 set y_cor 10 ask patch-at 0 109 [ set plabel " " ] ask patch-at 0 109 [ set plabel " Bits entered by user :- " ] ask patch-at 2 107 [ set plabel input ] set location no_of_bits_x set row 1 repeat no_of_bits_y [ repeat no_of_bits_x [ ask patches with [pxcor = x_cor and pycor = y_cor] [ sprout 1 [ set size 3 set breed box set color 33 ifelse (location mod no_of_bits_x = 0)[set location row * no_of_bits_x - 1] [set location location - 1] set value substring input location (location + 1) set label (value) ] wait slow-motion ] set x_cor x_cor - 4 ] set fnl_x x_cor + 4 set row row + 1 set x_cor 8 set y_cor y_cor - 4 ] set fnl_y y_cor ask patch-at 2 104 [ set plabel "Press the go button" ] initial-bits end to random_generation startup let input "" set x_cor 8 set y_cor 10 ask patch-at 0 109 [ set plabel " Randomly generating the bits" ] repeat no_of_bits_y [ repeat no_of_bits_x [ ask patches with [pxcor = x_cor and pycor = y_cor] [ sprout 1 [ set size 3 set breed box set color 33 set label (random-one-of bits) set input (input + label) ] wait slow-motion ] set x_cor x_cor - 4 ] set fnl_x x_cor + 4 set x_cor 8 set y_cor y_cor - 4 ] set fnl_y y_cor initial-bits ask patch-at 2 104 [ set plabel "Press the go button" ] end to go ask patches with [(pxcor = 10 and pycor > fnl_y - 3 and pycor < 13) or (pycor = fnl_y + 2 and pxcor < 16 and pxcor > fnl_x - 4 ) ] [ set pcolor white] ;ask patch-at 2 105 ;[ ; set plabel "" ; ] ask patch-at 2 107 [ set plabel "" ] ask patch-at 2 104 [ set plabel "" ] chk-vert-parity wait slow-motion * 3 ask vert-arrow [die] ask box [ set color 33] chk-horz-parity ask horz-arrow [die] wait slow-motion * 3 ask box [ set color 33] final-ans end to chk-horz-parity ;;; function to check horizontal parity ask patch-at 0 109 [ set plabel " " ] ask patch-at 0 109 [ set plabel "setting row parity" ] set c1 0 set arr-x fnl_x - 1 set arr-y 10 set-default-shape horz-arrow "arrow" set cnt 0 create-horz-arrow 1 while [ cnt < no_of_bits_y + 1] [ ;set cnt cnt - 1 ;user-message"cont"+ cnt ask horz-arrow [ set heading 90 set size 4 set color red setxy arr-x arr-y ;user-message"before repeat" repeat no_of_bits_x * 4 - 2 [ ;user-message"after repeat" fd 1 ;ask patch-here [ ;user-message"before box here" ask box-here [ if (label = 1 or label = "1") [ set color 132 set c1 c1 + 1 ] ] ;else pcolor 0 wait slow-motion ] ask patch-at 3 0 [;set pcolor blue sprout 1 [ set color 52 set size 3 set breed box let temp1 (c1 mod 2) ;user-message"temp1 is" + temp1 set label temp1 set c1 0] ; set cnt cnt + 1 ] ;ask patch-at 5 0 [ set plabel c1] ] set arr-y arr-y - 4 set cnt cnt + 1 ] ask patch-at 8 15 [ set plabel " " ] wait slow-motion end to chk-vert-parity ask patch-at 0 109 [ set plabel " " ] ask patch-at 0 109 [ set plabel "Setting column parity" ] set arr2-x (8) set arr2-y 11 set c2 0 set-default-shape vert-arrow "arrow" create-vert-arrow 1 while [counter < no_of_bits_x ] [ ask vert-arrow [ set heading 180 set size 4 set color red setxy arr2-x arr2-y repeat no_of_bits_y * 4 - 2 [ fd 1 wait slow-motion ask box-here [ if(label = 1 or label = "1") [ set color 132 set c2 c2 + 1 ] ] ] ask patch-at 0 -3 [ sprout 1 [set size 3 set color 52 set breed box let tem (c2 mod 2) set label tem ] set c2 0 ] ] set arr2-x arr2-x - 4 set counter counter + 1 ] ask patch-at 0 109 [ set plabel " " ] end to final-ans locals [ ] set finalbit " " set initial 15 set ycord 19 set c" " set ab "" set a -16 set asdf fnl_x set cntr 0 set arr3-x fnl_x - 1 set arr3-y 10 set-default-shape horz-arrow1 "square" ask patch-at 0 109 [ set plabel "The Final Encoded bits are" ] create-horz-arrow1 1 while [cntr < no_of_bits_y + 1] [ ask horz-arrow1 [ set heading 90 set ab 0 set size .02 set color black setxy arr3-x arr3-y set i no_of_bits_x * no_of_bits_y - 1 repeat (no_of_bits_x * 4) + 1 [ fd 1 wait slow-motion / 3 ask box-here [ set c c + label ;c c + 123 ;if (c = "1") [set ab ab + (1 * 10 ^ i)] ;user-message "c = " + c ;set i i - 1 ;user-message "c inside ask box = " + c ] ] set finalbit c ;user-message "c outside loop = "+ c ;set ab ab + c ;user-message "ab outside loop = "+ ab ask patch-at ycord initial [set plabel c] set ycord ycord + 5 set initial initial + 4 ] set finalbit1 finalbit1 + finalbit set rb finalbit ;user-message ab ;user-message "rb = " + rb set c "" wait .7 wait slow-motion set arr3-y arr3-y - 4 set cntr cntr + 1 ] ;set input1 input1 + 123 ;user-message"input1" + input1 ;repeat no_of_bits_x * no_of_bits_y[ ;set num 0 ;ifelse(ab = input1 ) [ user-message "correct answer" ] ;user-message "ab=" + ab ;user-message "input1=" + input1 ;set ab ab - input1 ;user-message "a2b=" + ab ;[if(ab != input1 and input1 != 0) [user-message "answer was incorrect"]] ;]] wait .5 ask patch-at 10 105 [ set plabel " The new bit formed is called the Redundant bit " ] end ;;;;;;;;;;;;;;;;;;;;;; ;to quiz ;locals [line] ;set line (word "what will be the final encoded bits for "init " ?") ;set input1 user-input line ;user-message "lets see the answer" ;go ;ask patch-at 14 -16 [ ;set plabel "ANSWER GIVEN : " + input1] ;end to initial-bits locals [] set init " " set initial1 4 set ycord1 19 set ci " " set ab1 "" set a1 -16 set cntr1 0 set arr3-x1 fnl_x - 1 set arr3-y1 10 set-default-shape horz-arrow1 "square" ;ask patch-at 6 18 ; [ ; set plabel "the final encoded bits are" ;] create-horz-arrow2 1 while [cntr1 < no_of_bits_y ] [ ask horz-arrow2 [ set heading 90 set ab1 0 set size .02 set color black setxy arr3-x1 arr3-y1 set i no_of_bits_x * no_of_bits_y - 1 repeat (no_of_bits_x * 4) + 1 [ fd 1 ;wait slow-motion / 3 ask box-here [ set ci ci + label ;user-message "ci is " + ci ;c c + 123 ;if (c = "1") [set ab ab + (1 * 10 ^ i)] ;user-message "ab = " + ab ;set i i - 1 ;user-message "c inside ask box = " + c ] ] ;user-message "c outside loop = "+ c ;set ab ab + c ;user-message "ab outside loop = "+ ab ;ask patch-at ycord initial [set plabel (c)] set ycord1 ycord1 + 5 set initial1 initial1 + 4 ] set init init + ci ;user-message ab ;user-message "ab outside outer loop = "+ c set ci "" wait slow-motion set arr3-y1 arr3-y1 - 4 set cntr1 cntr1 + 1 ] ;user-message "init is " + init end ;;;;;;;;;;;;hardik;;;;;;;;;;;;;;;;;; ; ask a quiz question to quiz locals [ save-slow ] ca set temp 0 without-interruption [ startup ] set save-slow slow-motion set slow-motion 0 wait .5 ask-question set slow-motion save-slow end ; creates a random quiz quesiton and praise if it is right and says its wrong if it is to ask-question startup random_generation let q random-one-of qchoice user-message "q = " + q if(q = 0) [ question1 ] if(q = 1) [ question2 ] ;user-message random-one-of praise end to question1 ;user-message "what is the Final encoded bits .. ?" wait .5 let q1 user-input "enter final encoded bits" user-message q1 set q1 "0 " + q1 go wait .5 user-message " q1 = " + q1 + " finalbit1 = " + finalbit1 if(q1 = finalbit1) [ user-message random-one-of praise ] if(q1 != finalbit1) [user-message "your answer is incorrect"] end to question2 wait .5 let q2 user-input " enter the redundancy bits " user-message "q2 = " + q2 go user-message "rb = " + rb ;set q2 " " + q2 if(q2 = rb) [ user-message random-one-of praise ] if(q2 != rb)[ user-message "your answer is incorrect" ] end @#$#@#$#@ GRAPHICS-WINDOW 303 10 805 533 20 20 12.0 1 16 1 1 1 0 1 1 1 CC-WINDOW 5 547 814 642 Command Center 0 BUTTON 147 111 286 144 NIL random_generation NIL 1 T OBSERVER T NIL BUTTON 67 168 205 201 NIL go NIL 1 T OBSERVER T NIL BUTTON 1 110 140 143 NIL input_from_user NIL 1 T OBSERVER T NIL SLIDER 55 282 227 315 no_of_bits_x no_of_bits_x 1 5 3 1 1 NIL SLIDER 55 316 227 349 no_of_bits_y no_of_bits_y 1 5 3 1 1 NIL SLIDER 56 351 228 384 slow-motion slow-motion 0 1 0.0 0.05 1 NIL BUTTON 67 221 204 254 NIL quiz NIL 1 T OBSERVER T NIL BUTTON 80 41 218 74 NIL startup NIL 1 T OBSERVER T NIL @#$#@#$#@ WHAT IS IT? ----------- This model depicts error detection using two dimensional parity. HOW IT WORKS ------------ First bits are either randomly generated or taken from the user. they are then arranged in rows. Next the vertical paroty is taken out followed by the horizontal parity. now there is an extra bit that has formed. the earlier bit with their paroties at the end plus the new bit with parity is final encoded bit to be transmitted. HOW TO USE IT ------------- First press the startup button followed by the user_input button or the random generation button n finally the go button to get the final results. THINGS TO NOTICE ---------------- notice that when the horizontal parity is being calculated ..it is the one bit errors in that bit that is being calculated, so the model gives both one bit n two bit parities. Also the new thing in themodel to be observed is the quiz part that has been added. its pictographic quiz. has two different questions one of which is randomly generated. THINGS TO TRY ------------- try the new quiz feature. also try to increase the no of bits n bytes in each bit. EXTENDING THE MODEL ------------------- This section could give some ideas of things to add or change in the procedures tab to make the model more complicated, detailed, accurate, etc. NETLOGO FEATURES ---------------- This section could point out any especially interesting or unusual features of NetLogo that the model makes use of, particularly in the Procedures tab. It might also point out places where workarounds were needed because of missing features. RELATED MODELS -------------- This section could give the names of models in the NetLogo Models Library or elsewhere which are of related interest. CREDITS AND REFERENCES ---------------------- This section could contain a reference to the model's URL on the web if it has one, as well as any other necessary credits or references. @#$#@#$#@ default true 0 Polygon -7500403 true true 150 5 40 250 150 205 260 250 airplane true 0 Polygon -7500403 true true 150 0 135 15 120 60 120 105 15 165 15 195 120 180 135 240 105 270 120 285 150 270 180 285 210 270 165 240 180 180 285 195 285 165 180 105 180 60 165 15 arrow true 0 Polygon -7500403 true true 150 0 0 150 105 150 105 293 195 293 195 150 300 150 box false 0 Polygon -7500403 true true 150 285 285 225 285 75 150 135 Polygon -7500403 true true 150 135 15 75 150 15 285 75 Polygon -7500403 true true 15 75 15 225 150 285 150 135 Line -16777216 false 150 285 150 135 Line -16777216 false 150 135 15 75 Line -16777216 false 150 135 285 75 bug true 0 Circle -7500403 true true 96 182 108 Circle -7500403 true true 110 127 80 Circle -7500403 true true 110 75 80 Line -7500403 true 150 100 80 30 Line -7500403 true 150 100 220 30 butterfly true 0 Polygon -7500403 true true 150 165 209 199 225 225 225 255 195 270 165 255 150 240 Polygon -7500403 true true 150 165 89 198 75 225 75 255 105 270 135 255 150 240 Polygon -7500403 true true 139 148 100 105 55 90 25 90 10 105 10 135 25 180 40 195 85 194 139 163 Polygon -7500403 true true 162 150 200 105 245 90 275 90 290 105 290 135 275 180 260 195 215 195 162 165 Polygon -16777216 true false 150 255 135 225 120 150 135 120 150 105 165 120 180 150 165 225 Circle -16777216 true false 135 90 30 Line -16777216 false 150 105 195 60 Line -16777216 false 150 105 105 60 car false 0 Polygon -7500403 true true 300 180 279 164 261 144 240 135 226 132 213 106 203 84 185 63 159 50 135 50 75 60 0 150 0 165 0 225 300 225 300 180 Circle -16777216 true false 180 180 90 Circle -16777216 true false 30 180 90 Polygon -16777216 true false 162 80 132 78 134 135 209 135 194 105 189 96 180 89 Circle -7500403 true true 47 195 58 Circle -7500403 true true 195 195 58 circle false 0 Circle -7500403 true true 0 0 300 circle 2 false 0 Circle -7500403 true true 0 0 300 Circle -16777216 true false 30 30 240 cow false 0 Polygon -7500403 true true 200 193 197 249 179 249 177 196 166 187 140 189 93 191 78 179 72 211 49 209 48 181 37 149 25 120 25 89 45 72 103 84 179 75 198 76 252 64 272 81 293 103 285 121 255 121 242 118 224 167 Polygon -7500403 true true 73 210 86 251 62 249 48 208 Polygon -7500403 true true 25 114 16 195 9 204 23 213 25 200 39 123 cylinder false 0 Circle -7500403 true true 0 0 300 dot false 0 Circle -7500403 true true 90 90 120 face happy false 0 Circle -7500403 true true 8 8 285 Circle -16777216 true false 60 75 60 Circle -16777216 true false 180 75 60 Polygon -16777216 true false 150 255 90 239 62 213 47 191 67 179 90 203 109 218 150 225 192 218 210 203 227 181 251 194 236 217 212 240 face neutral false 0 Circle -7500403 true true 8 7 285 Circle -16777216 true false 60 75 60 Circle -16777216 true false 180 75 60 Rectangle -16777216 true false 60 195 240 225 face sad false 0 Circle -7500403 true true 8 8 285 Circle -16777216 true false 60 75 60 Circle -16777216 true false 180 75 60 Polygon -16777216 true false 150 168 90 184 62 210 47 232 67 244 90 220 109 205 150 198 192 205 210 220 227 242 251 229 236 206 212 183 fish false 0 Polygon -1 true false 44 131 21 87 15 86 0 120 15 150 0 180 13 214 20 212 45 166 Polygon -1 true false 135 195 119 235 95 218 76 210 46 204 60 165 Polygon -1 true false 75 45 83 77 71 103 86 114 166 78 135 60 Polygon -7500403 true true 30 136 151 77 226 81 280 119 292 146 292 160 287 170 270 195 195 210 151 212 30 166 Circle -16777216 true false 215 106 30 flag false 0 Rectangle -7500403 true true 60 15 75 300 Polygon -7500403 true true 90 150 270 90 90 30 Line -7500403 true 75 135 90 135 Line -7500403 true 75 45 90 45 flower false 0 Polygon -10899396 true false 135 120 165 165 180 210 180 240 150 300 165 300 195 240 195 195 165 135 Circle -7500403 true true 85 132 38 Circle -7500403 true true 130 147 38 Circle -7500403 true true 192 85 38 Circle -7500403 true true 85 40 38 Circle -7500403 true true 177 40 38 Circle -7500403 true true 177 132 38 Circle -7500403 true true 70 85 38 Circle -7500403 true true 130 25 38 Circle -7500403 true true 96 51 108 Circle -16777216 true false 113 68 74 Polygon -10899396 true false 189 233 219 188 249 173 279 188 234 218 Polygon -10899396 true false 180 255 150 210 105 210 75 240 135 240 house false 0 Rectangle -7500403 true true 45 120 255 285 Rectangle -16777216 true false 120 210 180 285 Polygon -7500403 true true 15 120 150 15 285 120 Line -16777216 false 30 120 270 120 leaf false 0 Polygon -7500403 true true 150 210 135 195 120 210 60 210 30 195 60 180 60 165 15 135 30 120 15 105 40 104 45 90 60 90 90 105 105 120 120 120 105 60 120 60 135 30 150 15 165 30 180 60 195 60 180 120 195 120 210 105 240 90 255 90 263 104 285 105 270 120 285 135 240 165 240 180 270 195 240 210 180 210 165 195 Polygon -7500403 true true 135 195 135 240 120 255 105 255 105 285 135 285 165 240 165 195 line true 0 Line -7500403 true 150 0 150 300 line half true 0 Line -7500403 true 150 0 150 150 pentagon false 0 Polygon -7500403 true true 150 15 15 120 60 285 240 285 285 120 person false 0 Circle -7500403 true true 110 5 80 Polygon -7500403 true true 105 90 120 195 90 285 105 300 135 300 150 225 165 300 195 300 210 285 180 195 195 90 Rectangle -7500403 true true 127 79 172 94 Polygon -7500403 true true 195 90 240 150 225 180 165 105 Polygon -7500403 true true 105 90 60 150 75 180 135 105 plant false 0 Rectangle -7500403 true true 135 90 165 300 Polygon -7500403 true true 135 255 90 210 45 195 75 255 135 285 Polygon -7500403 true true 165 255 210 210 255 195 225 255 165 285 Polygon -7500403 true true 135 180 90 135 45 120 75 180 135 210 Polygon -7500403 true true 165 180 165 210 225 180 255 120 210 135 Polygon -7500403 true true 135 105 90 60 45 45 75 105 135 135 Polygon -7500403 true true 165 105 165 135 225 105 255 45 210 60 Polygon -7500403 true true 135 90 120 45 150 15 180 45 165 90 square false 0 Rectangle -7500403 true true 30 30 270 270 square 2 false 0 Rectangle -7500403 true true 30 30 270 270 Rectangle -16777216 true false 60 60 240 240 star false 0 Polygon -7500403 true true 151 1 185 108 298 108 207 175 242 282 151 216 59 282 94 175 3 108 116 108 target false 0 Circle -7500403 true true 0 0 300 Circle -16777216 true false 30 30 240 Circle -7500403 true true 60 60 180 Circle -16777216 true false 90 90 120 Circle -7500403 true true 120 120 60 tree false 0 Circle -7500403 true true 118 3 94 Rectangle -6459832 true false 120 195 180 300 Circle -7500403 true true 65 21 108 Circle -7500403 true true 116 41 127 Circle -7500403 true true 45 90 120 Circle -7500403 true true 104 74 152 triangle false 0 Polygon -7500403 true true 150 30 15 255 285 255 triangle 2 false 0 Polygon -7500403 true true 150 30 15 255 285 255 Polygon -16777216 true false 151 99 225 223 75 224 truck false 0 Rectangle -7500403 true true 4 45 195 187 Polygon -7500403 true true 296 193 296 150 259 134 244 104 208 104 207 194 Rectangle -1 true false 195 60 195 105 Polygon -16777216 true false 238 112 252 141 219 141 218 112 Circle -16777216 true false 234 174 42 Rectangle -7500403 true true 181 185 214 194 Circle -16777216 true false 144 174 42 Circle -16777216 true false 24 174 42 Circle -7500403 false true 24 174 42 Circle -7500403 false true 144 174 42 Circle -7500403 false true 234 174 42 turtle true 0 Polygon -10899396 true false 215 204 240 233 246 254 228 266 215 252 193 210 Polygon -10899396 true false 195 90 225 75 245 75 260 89 269 108 261 124 240 105 225 105 210 105 Polygon -10899396 true false 105 90 75 75 55 75 40 89 31 108 39 124 60 105 75 105 90 105 Polygon -10899396 true false 132 85 134 64 107 51 108 17 150 2 192 18 192 52 169 65 172 87 Polygon -10899396 true false 85 204 60 233 54 254 72 266 85 252 107 210 Polygon -7500403 true true 119 75 179 75 209 101 224 135 220 225 175 261 128 261 81 224 74 135 88 99 wheel false 0 Circle -7500403 true true 3 3 294 Circle -16777216 true false 30 30 240 Line -7500403 true 150 285 150 15 Line -7500403 true 15 150 285 150 Circle -7500403 true true 120 120 60 Line -7500403 true 216 40 79 269 Line -7500403 true 40 84 269 221 Line -7500403 true 40 216 269 79 Line -7500403 true 84 40 221 269 x false 0 Polygon -7500403 true true 270 75 225 30 30 225 75 270 Polygon -7500403 true true 30 75 75 30 270 225 225 270 @#$#@#$#@ NetLogo 3.0.2 @#$#@#$#@ @#$#@#$#@ @#$#@#$#@ @#$#@#$#@