Thank for replay Luis
I have tried that one before but my situation is different, I have got the point from intersection of tow curve and now I need to move it point along one of the curve, here is picture
Thank you for your help
the curve intersect component returns the t parameter of the intersection in terms of curve A and curve B (outputs tA and tB) - if you want to move it along curve A, for example, take the corresponding parameter, add or subtract some value to it, and use the curve/analysis/evaluate curve component to evaluate curve A at the adjusted t parameter.