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07: ContTwistedLines

ContTwistedLines Definition    download .ghx

A hyperboloid of one sheet is a ruled surface, that is, it can be formed from a sequence of straight lines. Further, it is doubly ruled: two such sequences can be combined into a lattice, making the form structurally efficient. Conceptually, a hyperboloid can be defined by twisting two parallel circles that have their centres on a common normal line.

The hyperboloid's independent parameters are the radii of the two circles and the twist of one circle relative to the other. Starting with the Controller from the sample, add a twist control to one circle.     ... more on Design Patterns CA

ContTwistedLines Manipulations