This function is supposed to provide the positions of handles defined in GetCustomHandles(). These positions will be shown on screen when the bar constraints are edited. If a position for a handle isn't provided, that handle will not be represented on screen while edit constraints.
This function is called when edit constraints command is lunched or during edit constraints after a constraint was changed and the curve calculation was done.
Assembly: RevitAPI (in RevitAPI.dll) Version: 18.104.22.168 (22.214.171.1240)
Use the members of this class to access the inputs and define the handle positions for this free form rebar.