How i can plot result in my GUI ?

[FelixB]

you have to declare "myRunSlot()" as slot:

public slots:
  void myRunSlot();

public slots:
  void myRunSlot();

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[21did21]

yes it's a mistake! thanks a lot!!! it resolve a problem

but one problem continue:
=> my curve appear just at the end, the point are not ploting during execution

[21did21]

my problem i solved.

thank you everybody for your help, it's very kind