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ReacVectorField Definition    download .ghx

Define two points: an interactor and a reference. The goal is to define a bound vector from the reference such that it is always right-handedly perpendicular to the imaginary line that connects the two points. Create a coordinate system on the reference point by using the interactor point to locate its X axis. Making the result vector on the Y axis of this coordinate system, ensures that it will always be perpendicular to the X axis and consequently to the connecting line. Note that the reference can be more than one object. In this case both the start point of the vector and the coordinate system comprise the reference. The coordinate system could replace the reference point, simplifying back to a single reference, but such reduction is not always possible.      ... more on Design Patterns CA

ReacVectorField Manipulations

ReacVectorField Manipulations