Defining Bezier parameters in Pajek NET file
To manually change shapes of selected lines (draw only few lines as curves), Bezier parameters: a1, k1, a2, and k2
can be specified for each line in Pajek NET file (a stands for angle, k for velocity).
e.g. to draw only line from vertex 3 to vertex 5 as a curve, specify:
2 3 1
3 5 1 a1 25 k1 2 a2 -25 k2 2.5
1 2 1
Test Pajek NET file: BezierCurve.net.
Parameters written in Pajek NET file overrule settings in Export / Options.
For details see Pajek manual, Chapter 5.3.