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+digraph { rankdir=LR
+
+subgraph cluster_back { label="Back" style=bold color=grey
+
+//cam01 [label="DV cam" style=dotted]
+mic0 [label="Microphone" style=dotted]
+cam1 [label="Webcam"]
+cam2 [label="Webcam"]
+cam3 [label="Webcam"]
+cam4 [label="Webcam"]
+cam5 [label="Webcam"]
+cam6 [label="Webcam"]
+cam7 [label="Webcam"]
+cam8 [label="Webcam"]
+pc1 [shape=box label="Auto mixer + raw streaming\nMicro-PC"]
+pc2 [shape=box label="Auto mixer + raw streaming\nMicro-PC"]
+pc3 [shape=box label="Auto mixer + raw streaming\nMicro-PC"]
+pc4 [shape=box label="Raw streaming\nMicro-PC"]
+mon1 [shape=hexagon label="Auto-mix display\nMonitor"]
+mon2 [shape=hexagon label="Auto-mix display\nMonitor"]
+mon3 [shape=hexagon label="Auto-mix display\nMonitor"]
+mon00 [shape=hexagon label="Simple display\nMonitor"]
+mon01 [shape=hexagon label="Live-mix display\nMonitor"]
+
+pc1 -> mon1 [label="HDMI" fontsize=9]
+pc2 -> mon2 [label="HDMI" fontsize=9]
+pc3 -> mon3 [label="HDMI" fontsize=9]
+cam1 -> pc1 [label="USB" fontsize=9]
+cam2 -> pc1 [label="USB" fontsize=9]
+cam3 -> pc2 [label="USB" fontsize=9]
+cam4 -> pc2 [label="USB" fontsize=9]
+cam5 -> pc3 [label="USB" fontsize=9]
+cam6 -> pc3 [label="USB" fontsize=9]
+cam7 -> pc4 [label="USB" fontsize=9]
+cam8 -> pc4 [label="USB" fontsize=9]
+
+{rank=max; mon00 mon01 mon1 mon2 mon3}
+//{rank=min; mic0 cam01 cam1 cam2 cam3 cam4}
+{rank=min; mic0 cam1 cam2 cam3 cam4}
+}
+
+subgraph cluster_top { label="Roof" style=bold color=grey
+
+cam00 [label="Outdoor cam" style=dotted]
+}
+
+subgraph cluster_front { label="Front" style=bold color=grey
+
+mon02 [shape=hexagon label="Video mixer console\nMonitor + keyboard"]
+//pc22 [shape=box label="Video mixer console\nLaptop" style=dotted]
+amix [shape=box label="Audio mixer console" style=dotted]
+}
+
+vid0 [label="Video recording\nDocument" style=dotted]
+pc0 [shape=box label="Live mixer\nPC"]
+sw0 [shape=box label="Switch"]
+pc10 [shape=box label="Compressed streaming\nPC"]
+pc80 [shape=box label="Website"]
+pub1 [shape=hexagon label="Web browser"]
+
+cam00 -> mon00 [style=dotted constraint=false]
+mic0 -> amix [style=dotted]
+amix -> pc0 [label="Phono" fontsize=9 style=dotted constraint=false]
+vid0 -> pc0 [label="Disk" style=dotted fontsize=9]
+pc0 -> mon01 [label="DVI" fontsize=9]
+pc0 -> mon02 [label="VGA + PS/2" fontsize=9]
+pc10 -> pc80 [label="Cellular net" fontsize=9]
+pc80 -> pub1 [label="Internet" fontsize=9]
+{pc1 pc2 pc3 pc4 pc0 pc10} -> sw0 [taillabel="Ethernet" fontsize=9 dir=none constraint=false]
+//sw0 -> pc22 [label="Ethernet" fontsize=9 dir=both style=dotted constraint=false]
+//cam01 -> pc0 [label="firewire" fontsize=9 style=dotted constraint=false]
+
+{rank=same; pc0 pc10 pc80 sw0}
+}