docs: added tutorials overview and tutorial 6
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Blake Harnden
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114
package/examples/tutorials/tutorial6/completed-scenario.xml
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114
package/examples/tutorials/tutorial6/completed-scenario.xml
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<?xml version='1.0' encoding='UTF-8'?>
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<scenario name="/tmp/tmpaghphwl7">
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<networks>
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<network id="4" name="n4" icon="" canvas="1" type="WIRELESS">
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<position x="170.0" y="184.0" lat="47.577493888263376" lon="-122.13003351477549" alt="2.0"/>
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<wireless>
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<configuration name="movement" value="1"/>
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<configuration name="max-range" value="400.0"/>
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<configuration name="bandwidth" value="54000000"/>
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<configuration name="delay" value="5000"/>
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<configuration name="jitter" value="0"/>
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<configuration name="loss-range" value="300.0"/>
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<configuration name="loss-factor" value="1.0"/>
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<configuration name="loss" value="0.0"/>
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</wireless>
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</network>
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</networks>
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<devices>
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<device id="1" name="n1" icon="/usr/share/core/examples/tutorials/tutorial6/drone.png" canvas="1" type="mdr" class="" image="">
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<position x="303.0" y="25.0" lat="47.57893917036898" lon="-122.12824137578366" alt="2.0"/>
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<configservices>
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<service name="zebra"/>
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<service name="IPForward"/>
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<service name="OSPFv3MDR"/>
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</configservices>
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</device>
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<device id="2" name="n2" icon="/usr/share/core/examples/tutorials/tutorial6/drone.png" canvas="1" type="mdr" class="" image="">
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<position x="205.0" y="158.0" lat="47.57773022643051" lon="-122.12956189925131" alt="2.0"/>
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<configservices>
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<service name="zebra"/>
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<service name="IPForward"/>
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<service name="OSPFv3MDR"/>
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</configservices>
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</device>
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<device id="3" name="n3" icon="/usr/share/core/examples/tutorials/tutorial6/drone.png" canvas="1" type="mdr" class="" image="">
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<position x="120.0" y="316.0" lat="47.57629400111251" lon="-122.13070725123856" alt="2.0"/>
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<configservices>
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<service name="zebra"/>
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<service name="IPForward"/>
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<service name="OSPFv3MDR"/>
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</configservices>
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</device>
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</devices>
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<links>
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<link node1="1" node2="4">
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<iface1 id="0" name="eth0" mac="00:00:00:aa:00:00" ip4="10.0.0.1" ip4_mask="32" ip6="2001::1" ip6_mask="128"/>
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</link>
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<link node1="2" node2="4">
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<iface1 id="0" name="eth0" mac="00:00:00:aa:00:01" ip4="10.0.0.2" ip4_mask="32" ip6="2001::2" ip6_mask="128"/>
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</link>
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<link node1="3" node2="4">
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<iface1 id="0" name="eth0" mac="00:00:00:aa:00:02" ip4="10.0.0.3" ip4_mask="32" ip6="2001::3" ip6_mask="128"/>
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</link>
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</links>
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<configservice_configurations>
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<service name="zebra" node="1"/>
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<service name="IPForward" node="1"/>
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<service name="OSPFv3MDR" node="1"/>
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<service name="zebra" node="2"/>
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<service name="IPForward" node="2"/>
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<service name="OSPFv3MDR" node="2"/>
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<service name="zebra" node="3"/>
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<service name="IPForward" node="3"/>
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<service name="OSPFv3MDR" node="3"/>
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</configservice_configurations>
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<session_origin lat="47.579166412353516" lon="-122.13232421875" alt="2.0" scale="150.0"/>
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<session_options>
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<configuration name="controlnet" value=""/>
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<configuration name="controlnet0" value="172.16.0.0/24"/>
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<configuration name="controlnet1" value=""/>
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<configuration name="controlnet2" value=""/>
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<configuration name="controlnet3" value=""/>
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<configuration name="controlnet_updown_script" value=""/>
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<configuration name="enablerj45" value="1"/>
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<configuration name="preservedir" value="0"/>
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<configuration name="enablesdt" value="0"/>
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<configuration name="sdturl" value="tcp://127.0.0.1:50000/"/>
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<configuration name="ovs" value="0"/>
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<configuration name="platform_id_start" value="1"/>
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<configuration name="nem_id_start" value="1"/>
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<configuration name="link_enabled" value="1"/>
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<configuration name="loss_threshold" value="30"/>
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<configuration name="link_interval" value="1"/>
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<configuration name="link_timeout" value="4"/>
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<configuration name="mtu" value="0"/>
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</session_options>
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<session_metadata>
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<configuration name="shapes" value="[]"/>
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<configuration name="edges" value="[]"/>
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<configuration name="hidden" value="[4]"/>
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<configuration name="canvas" value="{"gridlines": true, "canvases": [{"id": 1, "wallpaper": "/usr/share/core/examples/tutorials/tutorial6/terrain.png", "wallpaper_style": 1, "fit_image": false, "dimensions": [1000, 750]}]}"/>
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</session_metadata>
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<default_services>
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<node type="mdr">
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<service name="zebra"/>
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<service name="OSPFv3MDR"/>
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<service name="IPForward"/>
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</node>
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<node type="PC">
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<service name="DefaultRoute"/>
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</node>
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<node type="prouter"/>
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<node type="router">
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<service name="zebra"/>
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<service name="OSPFv2"/>
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<service name="OSPFv3"/>
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<service name="IPForward"/>
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</node>
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<node type="host">
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<service name="DefaultRoute"/>
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<service name="SSH"/>
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</node>
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</default_services>
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</scenario>
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103
package/examples/tutorials/tutorial6/demo.py
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package/examples/tutorials/tutorial6/demo.py
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import sys
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import time
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from core.api.grpc import client
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from core.api.grpc.wrappers import Position
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# start_row can be used to share a search
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def find_next_position(arr, start_row):
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# find next position with value of 0 for 'not visited'
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min_rows, min_cols = (25, 25)
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rows, cols = (470, 900)
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if start_row < min_rows:
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start_row = min_rows
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for y in range(start_row, rows):
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for x in range(min_cols, cols):
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if (y % 2) == 0:
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print(f"search_x={x}")
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print(f"search_y={y}")
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val = arr[x][y]
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if (val == 0) or (val == 100):
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return x,y
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else:
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search_x = cols - (x - min_cols + 1)
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print(f"search_x={search_x}")
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print(f"search_y={y}")
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val = arr[search_x][y]
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if val == 0:
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return search_x,y
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def move(current_x, current_y, to_x, to_y):
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# move 1 pixel
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speed = 1
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if to_x > current_x:
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move_x = current_x + speed
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elif to_x < current_x:
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move_x = current_x - speed
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else:
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move_x = current_x
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if to_y > current_y:
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move_y = current_y + speed
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elif to_y < current_y:
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move_y = current_y - speed
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else:
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move_y = current_y
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return move_x, move_y
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def main():
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n = len(sys.argv)
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if (n < 3):
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print("Usage: core-python demo.py <node num> <total search nodes>")
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exit()
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# number of search nodes
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num_search_nodes = int(sys.argv[2])
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# create grpc client and connect
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core = client.CoreGrpcClient("172.16.0.254:50051")
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core.connect()
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# get session
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sessions = core.get_sessions()
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rows_per_zone = (499 - 25) / num_search_nodes
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node_number = int(sys.argv[1])
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y_start = (node_number - 1) * int(rows_per_zone)
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current_x = 25
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current_y = y_start
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# max x and y
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rows, cols = (470, 900)
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arr = [[0 for i in range(rows)] for j in range(cols)]
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print(arr, "before")
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# place target
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# update one element as target
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arr[200][165] = 100
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print(arr, "after")
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while True:
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val = arr[current_x][current_y]
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# if position has target, stop
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if val == 100:
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print(f"found target, position={position}")
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else:
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#update one element for this starting position
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arr[current_x][current_y] = 1
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# move
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to_x, to_y = find_next_position(arr, y_start)
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print(f"next x={to_x}, next y={to_y}")
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x, y = move(current_x, current_y, to_x, to_y)
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# command the move
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position = Position(x , y)
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print(f"move to position {position}")
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core.move_node(sessions[0].id, node_number, position=position)
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current_x = x
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current_y = y
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time.sleep(.25)
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if __name__ == "__main__":
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main()
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BIN
package/examples/tutorials/tutorial6/drone.png
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package/examples/tutorials/tutorial6/drone.png
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package/examples/tutorials/tutorial6/terrain.png
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package/examples/tutorials/tutorial6/terrain.png
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