node = nuke.selectedNode()
roto = nuke.createNode('Roto')

trackerExist = nuke.Boolean_Knob('tracker_exist')
trackerExist.setExpression('[exists [string range "[knob tracker_mode]" 1 end-11]]')
trackerMode = nuke.Int_Knob('tracker_mode')
trackerMode.setExpression('%s.transform' % node.name())
invertCheck = nuke.Boolean_Knob('invert_check')
invertCheck.setExpression('tracker_mode == 1 || tracker_mode == 2 || tracker_mode == 5 ? user_mode == 1 : user_mode == 0')
userMode = nuke.Enumeration_Knob('user_mode','user_mode',['match-move','stabilize'])
for k in [trackerMode,trackerExist,invertCheck,userMode]:
    roto.addKnob(k)
    
roto.knob('translate').setExpression('invert_check ? %s.translate : -%s.translate' % (node.name(),node.name()))
roto.knob('rotate').setExpression('invert_check ? %s.rotate : -%s.rotate' % (node.name(),node.name()))
roto.knob('scale').setExpression('invert_check ? %s.scale : 1/%s.scale' % (node.name(),node.name()))
roto.knob('center').setExpression('invert_check ? %s.center : %s.center + %s.translate' % (node.name(),node.name(),node.name()))

roto['label'].setValue('link [string range "[knob tracker_mode]" 1 end-11]\n[ expr { [value tracker_exist] == true ? "[value user_mode]" :"FAILED LINK" }]\n')

roto.hideControlPanel()
roto.setTab(0)
roto.showControlPanel()
nuke.extractSelected()
roto.setXYpos(int(node.xpos() + 200), int(node.ypos() + 000))