The flux profile for corresponding to solution (101) is determined the present invention relates to a kind of radiotherapy planning system (100). The invention proposes use the boundaries Pareto omniselector (140) to select very wise move from one group of various solution planned automatically. The solution that the convex combination navigated among interactive graphical user interface (400) plan of being provided to is planned automatically. The Pareto planning navigating visual of the proposition is further alternative thinning process, can be used for finding that very wise move not exclusively meets the requirement of designer in those solution automatically generated. Navigational tool (400) is mobile to pass through one group of precedents locally automatically generated and the potentially decision-making process of reduced programming device, reduces entire planned time complex clinical case from several hours to a few minutes.
