70 |
grouping of the node and the connection. |
grouping of the node and the connection. |
71 |
|
|
72 |
The only disruptions in a fillet graph will be when the connections cross |
The only disruptions in a fillet graph will be when the connections cross |
73 |
each other. Line crossing is one serious factor making it hard to read |
each other. |
74 |
complex node-link graphs. With fillets, tracing a connection is |
This makes a complex filleted graph is far easier to read than a box-line |
75 |
|
graph, because in box-line graphs disruptions occur not only at line crossings |
76 |
|
but also where the lines connect to the boxes, making the two situations |
77 |
|
hard to distinguish. |
78 |
|
With fillets, tracing a connection is |
79 |
perceptually easy even if it crosses with other connections. |
perceptually easy even if it crosses with other connections. |
80 |
|
|
81 |
We tested the easiness of perceiving fillets in a controlled laboratory |
We tested the ease of perceiving fillets in a controlled laboratory |
82 |
experiment with ten naïve participants. Eight different graphs were |
experiment with ten naïve participants. Eight different graphs were |
83 |
tested, of which one was implemented with "perfect" fillets. The other |
tested, of which one was implemented with "perfect" fillets. The other |
84 |
seven graphs were "incomplete" fillets or different common node-link |
seven graphs were "incomplete" fillets or different common node-link |