extensions [gogo] globals [ serial-port ;; different on different operating systems ] to setup ifelse length (gogo:ports) > 0 [ set serial-port user-one-of "Select a port:" gogo:ports ] [ user-message "There is a problem with the connection. Check if the board is on, and if the cable is connected. Otherwise, try to quit NetLogo, power cycle the GoGo Board, and open NetLogo again. For more information on how to fix connection issues, refer to the NetLogo documentation or the info tab of this model" stop ] gogo:open serial-port repeat 5 [ if not gogo:ping [ user-message "There is a problem with the connection. Check if the board is on, and if the cable is connected. Otherwise, try to quit NetLogo, power cycle the GoGo Board, and open NetLogo again. For more information on how to fix connection issues, refer to the NetLogo documentation or the info tab of this model"] ] gogo:talk-to-output-ports [ "a" "b" "c" "d"] set-current-plot "Sensors" end to test-connection carefully [ ifelse not gogo:ping [ user-message "There is a problem with the connection. Check if the board is on, and if the cable is connected. Otherwise, try to quit NetLogo, power cycle the GoGo Board, and open NetLogo again. For more information on how to fix connection issues, refer to the NetLogo documentation or the info tab of this model" ] [ user-message "GoGo Board connected and working!" ] ] [ user-message error-message stop ] end ; Public Domain: ; To the extent possible under law, Uri Wilensky has waived all ; copyright and related or neighboring rights to this model. @#$#@#$#@ GRAPHICS-WINDOW 705 465 950 525 1 0 29.0 1 10 1 1 1 0 1 1 1 -1 1 0 0 0 0 0 ticks 30.0 BUTTON 10 30 135 75 NIL setup NIL 1 T OBSERVER NIL S NIL NIL 1 MONITOR 565 25 636 70 sensor 1 gogo:sensor 1 0 1 11 MONITOR 645 25 716 70 sensor 2 gogo:sensor 2 0 1 11 MONITOR 566 77 637 122 sensor 3 gogo:sensor 3 0 1 11 MONITOR 645 78 716 123 sensor 4 gogo:sensor 4 0 1 11 MONITOR 566 132 637 177 sensor 5 gogo:sensor 5 0 1 11 MONITOR 647 131 718 176 sensor 6 gogo:sensor 6 0 1 11 MONITOR 566 187 637 232 sensor 7 gogo:sensor 7 0 1 11 MONITOR 647 188 718 233 sensor 8 gogo:sensor 8 0 1 11 PLOT 15 535 800 725 Sensors NIL NIL 0.0 10.0 0.0 1023.0 false true "" "" PENS "sensor 1" 1.0 0 -2674135 true "" "if plot-sensor-1\n[\nlet data-point-to-plot gogo:sensor 1\nif data-point-to-plot <= 1023 and data-point-to-plot >= 0\n [ plot data-point-to-plot ]\nif refresh-rate = \"medium\" [wait 0.01]\nif refresh-rate = \"slow\" [wait 0.1]\n]" "sensor 2" 1.0 0 -16777216 true "" "if plot-sensor-2\n[let data-point-to-plot gogo:sensor 2\nif data-point-to-plot <= 1023 and data-point-to-plot >= 0\n [ plot data-point-to-plot ]\nif refresh-rate = \"medium\" [wait 0.01]\nif refresh-rate = \"slow\" [wait 0.1]\n]" "sensor 3" 1.0 0 -955883 true "" "if plot-sensor-3\n[let data-point-to-plot gogo:sensor 3\nif data-point-to-plot <= 1023 and data-point-to-plot >= 0\n [ plot data-point-to-plot ]\nif refresh-rate = \"medium\" [wait 0.01]\nif refresh-rate = \"slow\" [wait 0.1]\n]" "sensor 4" 1.0 0 -6459832 true "" "if plot-sensor-4\n[let data-point-to-plot gogo:sensor 4\nif data-point-to-plot <= 1023 and data-point-to-plot >= 0\n [ plot data-point-to-plot ]\nif refresh-rate = \"medium\" [wait 0.01]\nif refresh-rate = \"slow\" [wait 0.1]\n]" "sensor 5" 1.0 0 -10899396 true "" "if plot-sensor-5\n[let data-point-to-plot gogo:sensor 5\nif data-point-to-plot <= 1023 and data-point-to-plot >= 0\n [ plot data-point-to-plot ]\nif refresh-rate = \"medium\" [wait 0.01]\nif refresh-rate = \"slow\" [wait 0.1]\n]" "sensor 6" 1.0 0 -5825686 true "" "if plot-sensor-6\n[let data-point-to-plot gogo:sensor 6\nif data-point-to-plot <= 1023 and data-point-to-plot >= 0\n [ plot data-point-to-plot ]\nif refresh-rate = \"medium\" [wait 0.01]\nif refresh-rate = \"slow\" [wait 0.1]\n]" "sensor 7" 1.0 0 -8630108 true "" "if plot-sensor-7\n[let data-point-to-plot gogo:sensor 7\nif data-point-to-plot <= 1023 and data-point-to-plot >= 0\n [ plot data-point-to-plot ]\nif refresh-rate = \"medium\" [wait 0.01]\nif refresh-rate = \"slow\" [wait 0.1]\n]" "sensor 8" 1.0 0 -13791810 true "" "if plot-sensor-8\n[let data-point-to-plot gogo:sensor 8\nif data-point-to-plot <= 1023 and data-point-to-plot >= 0\n [ plot data-point-to-plot ]\nif refresh-rate = \"medium\" [wait 0.01]\nif refresh-rate = \"slow\" [wait 0.1]\n]" BUTTON 10 405 140 438 NIL update-plots T 1 T OBSERVER NIL P NIL NIL 1 BUTTON 145 405 275 438 NIL clear-plot NIL 1 T OBSERVER NIL NIL NIL NIL 1 TEXTBOX 567 1 717 19 Sensors 14 15.0 0 BUTTON 160 30 290 75 test connection test-connection NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 10 100 112 133 a-on gogo:talk-to-output-ports [ \"a\" ]\ngogo:output-port-on NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 10 138 112 171 a-off gogo:talk-to-output-ports [ \"a\" ]\ngogo:output-port-off NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 10 177 112 210 a-thisway gogo:talk-to-output-ports [ \"a\" ]\ngogo:output-port-thisway NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 10 218 112 251 a-thatway gogo:talk-to-output-ports [ \"a\" ]\ngogo:output-port-thatway NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 10 256 112 289 a-reverse gogo:talk-to-output-ports [ \"a\" ]\ngogo:output-port-reverse NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 10 335 112 368 set-a-power gogo:talk-to-output-ports [ \"a\" ]\ngogo:set-output-port-power a-power NIL 1 T OBSERVER NIL NIL NIL NIL 1 SLIDER 9 295 112 328 a-power a-power 0 7 7 1 1 NIL HORIZONTAL BUTTON 119 100 221 133 b-on gogo:talk-to-output-ports [ \"b\" ]\ngogo:output-port-on NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 119 138 221 171 b-off gogo:talk-to-output-ports [ \"b\" ]\ngogo:output-port-off NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 119 177 221 210 b-thisway gogo:talk-to-output-ports [ \"b\" ]\ngogo:output-port-thisway NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 119 218 221 251 b-thatway gogo:talk-to-output-ports [ \"b\" ]\ngogo:output-port-thatway NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 119 256 221 289 b-reverse gogo:talk-to-output-ports [ \"b\" ]\ngogo:output-port-reverse NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 119 335 221 368 set-b-power gogo:talk-to-output-ports [ \"b\" ]\ngogo:set-output-port-power b-power NIL 1 T OBSERVER NIL NIL NIL NIL 1 SLIDER 119 295 221 328 b-power b-power 0 7 7 1 1 NIL HORIZONTAL BUTTON 229 100 331 133 c-on gogo:talk-to-output-ports [ \"c\" ]\ngogo:output-port-on NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 229 138 331 171 c-off gogo:talk-to-output-ports [ \"c\" ]\ngogo:output-port-off NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 229 177 331 210 c-thisway gogo:talk-to-output-ports [ \"c\" ]\ngogo:output-port-thisway NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 229 218 331 251 c-thatway gogo:talk-to-output-ports [ \"c\" ]\ngogo:output-port-thatway NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 229 256 331 289 c-reverse gogo:talk-to-output-ports [ \"c\" ]\ngogo:output-port-reverse NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 229 335 331 368 set-c-power gogo:talk-to-output-ports [ \"c\" ]\ngogo:set-output-port-power c-power NIL 1 T OBSERVER NIL NIL NIL NIL 1 SLIDER 229 295 331 328 c-power c-power 0 7 7 1 1 NIL HORIZONTAL BUTTON 339 100 441 133 d-on gogo:talk-to-output-ports [ \"d\" ]\ngogo:output-port-on NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 339 138 441 171 d-off gogo:talk-to-output-ports [ \"d\" ]\ngogo:output-port-off NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 339 177 441 210 d-thisway gogo:talk-to-output-ports [ \"d\" ]\ngogo:output-port-thisway NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 339 218 441 251 d-thatway gogo:talk-to-output-ports [ \"d\" ]\ngogo:output-port-thatway NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 339 256 441 289 d-reverse gogo:talk-to-output-ports [ \"d\" ]\ngogo:output-port-reverse NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 339 335 441 368 set-d-power gogo:talk-to-output-ports [ \"d\" ]\ngogo:set-output-port-power d-power NIL 1 T OBSERVER NIL NIL NIL NIL 1 SLIDER 339 295 441 328 d-power d-power 0 7 7 1 1 NIL HORIZONTAL TEXTBOX 10 75 160 95 Output Port Controls 14 15.0 0 CHOOSER 285 390 423 435 refresh-rate refresh-rate "fast" "medium" "slow" 1 SWITCH 10 445 140 478 plot-sensor-1 plot-sensor-1 0 1 -1000 SWITCH 10 485 140 518 plot-sensor-2 plot-sensor-2 1 1 -1000 SWITCH 145 445 275 478 plot-sensor-3 plot-sensor-3 1 1 -1000 SWITCH 145 485 275 518 plot-sensor-4 plot-sensor-4 1 1 -1000 TEXTBOX 10 375 160 393 Plotting 14 15.0 1 SWITCH 285 445 415 478 plot-sensor-5 plot-sensor-5 1 1 -1000 SWITCH 285 485 415 518 plot-sensor-6 plot-sensor-6 1 1 -1000 SWITCH 425 445 555 478 plot-sensor-7 plot-sensor-7 1 1 -1000 SWITCH 425 485 555 518 plot-sensor-8 plot-sensor-8 1 1 -1000 TEXTBOX 565 280 780 485 Check if the USB cable is connected to the computer and to the GoGo Board, and if you have installed the USB-Serial drivers. Most connection problems are solved by:\n(1) Closing NetLogo.\n(2) Turning the GoGo Board off.\n(3) Waiting 5 seconds.\n(4) Turning the board back on.\n(5) Waiting 5 seconds.\n(6) Opening NetLogo again.\n\nRefer to the NetLogo documentation for more information. 11 0.0 1 TEXTBOX 565 240 775 276 If you cannot connect to the GoGo Board: 14 15.0 1 MONITOR 315 30 440 75 Connected to: serial-port 17 1 11 TEXTBOX 10 0 170 20 Initialize & test 14 15.0 1 TEXTBOX 130 10 495 28 note: pressing \"setup\" twice on Mac OS X may cause a crash 11 0.0 1 @#$#@#$#@ ## WHAT IS IT? This model communicates with the sensors and output ports of a [GoGo Board](http://www.gogoboard.org), an open source, easy-to-build, low cost, general purpose circuit board designed for educational projects. This model helps you test your connection to your GoGo Board, and serves as a starting point for building NetLogo activities that interact with the physical world. For a simpler version of this model, try the GoGoMonitorSimple. ## HOW IT WORKS The GoGo Extension for NetLogo provides primitives for communicating with a Gogo Board connected to your computer's USB or serial port. You can get information from sensors and control motors, LEDs, light, and relays. ## HOW TO USE IT Connect a GoGo Board to your computer's serial or USB port (depending on the version of the board you have). Then connect sensors, motors, LEDs, relays, and lights to the board. Press SETUP to begin communicating with the GoGo board. When prompted, enter the name of the serial port that is connected to your board (should be the first one you see on the drop-down list). The port should be automatically detected, but if you are not sure, go to the Control Panel -> System -> Device Manager (Windows) or to the System Preferences (Mac). Press TEST CONNECTION to check if NetLogo is communicating with your GoGo Board. The sensor monitors -- SENSOR 1 through SENSOR 8 -- show the value of each of the sensors on the GoGo Board. The output port controls let you control the motors and lights connected to the four available output ports of your GoGo board: A, B, C, and D. In the following examples, we use output port "A." A-ON turns the output port(s) on. A-OFF turns the output port(s) off. A-THISWAY/THATWAY control the direction of current to the output port(s). If a motor is connected to the output port, this determines the direction of motion. A-REVERSE-DIRECTION reverses the direction of current to the output port(s). For motors, it will make it turn the other way. For LEDs, it will make the LED turn on or off (if the ports was turned on previously) because LEDs are polarized. To change the amount of current going to the output port(s), set the A-POWER slider, then press the SET-A-POWER button. The same applies to the other output ports B, C, and D. To plot sensor values, first choose which ones you want to plot using the switches, and start the UPDATE-PLOTS forever button. At any time, you can clear the plot with the CLEAR PLOT button. Changing the REFRESH RATE chooser adds small delay between each data point, effectively decreasing the sampling rate. The "FAST" mode adds no delay (resulting in 500 Hz on a fast computer), the "MEDIUM" mode adds 0.01 seconds of delay (resulting in approximately 80 Hz), and the "SLOW" mode adds 0.1 second between each measure (approximately 10 Hz). A high refresh rate ("FAST" mode) is better for data that change very quickly, but it is prone to have more noise and result in a huge data set. Slow refresh rates will result in a smoother line, but you might miss some data in between recorded data points. To export the data in your plot, right-click (on Macs, control-click) on the plot and choose "Export...". ## THINGS TO TRY Try connecting different sensors to the GoGo Board: temperature sensors, light sensors, pressure sensors, etc. Connect various motors, lights, and other circuits to the GoGo Board's output ports. Change the refresh rates by editing the code in the plot, and modifying the wait time (default value is 0.01 or 0.1, higher values would cause the sampling rate to decrease). To find out where to buy sensors and motors, go to the [GoGo Board website](http://www.gogoboard.org). ## EXTENDING THE MODEL Add filters and normalization to the sensor data. Using a light sensor, make a turtle move forward when it's dark, and stop when there is light. Create animations that are controlled by sensors Create Bifocal Models (see [bifocal modeling](http://tltl.stanford.edu/projects/bifocal-modeling)) ## NETLOGO FEATURES This model uses the NetLogo GoGo Extension. For more information, see the GoGo Extension section of the NetLogo User Manual. ## CREDITS AND REFERENCES To learn about GoGo Boards, see http://www.gogoboard.org. This model was created by Paulo Blikstein at Stanford's [Transformative Learning Technologies Lab](http://tltl.stanford.edu). @#$#@#$#@ 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 5.1.0 @#$#@#$#@ need-to-manually-make-preview-for-this-model @#$#@#$#@ @#$#@#$#@ @#$#@#$#@ @#$#@#$#@ default 0.0 -0.2 0 0.0 1.0 0.0 1 1.0 0.0 0.2 0 0.0 1.0 link direction true 0 Line -7500403 true 150 150 90 180 Line -7500403 true 150 150 210 180 @#$#@#$#@ 1 @#$#@#$#@