Drawing an arbitrary knot?

[superman]

Is it possible to draw a planar diagram of an arbitrary knot?

Inputing either any code of the knot (dowker, gauss,...) or a list of edges and crossings.... any notation?

for example, draw the trefoil after performing a Reidemeister 1 move on one of the arcs?

[rob]

Is it possible to draw a planar diagram of an arbitrary knot?

Inputing either any code of the knot (dowker, gauss,...) or a list of edges and crossings.... any notation?

for example, draw the trefoil after performing a Reidemeister 1 move on one of the arcs?

yes, use the Sketch control panel. http://knotplot.com/tut/basic-sketching/