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| {{Mergeto|Solid modeling|date=October 2007}} | |||
| In ], a '''transmigration operation''' refers to the changes in a part that must be propagated to changes in other parts which have a dependence on the first. Put simply it means that if something is moved, other things will be affected and must also be adjusted to preserve other established relationships. | |||
| This expression came into existence when parametric modelers like ] gained acceptance. Parametric modelers generate the ] from the ] representation and its associations, usually in the form of ] expressions. | |||
| == Example == | |||
| Suppose one has two blocks of widely different sizes. A ] is performed, subtracting the smaller block from a corner of the bigger one, and resulting in a block with a square corner removed. Now suppose that a user colors one of the edges of the block and stores that change. If the user goes back and moves the cutting block so that instead of cutting a side, the user instead cuts through the center of the edge, creating a two edges; the color change is then reapplied. Those subsequent changes are associated with both broken edges, rather than one of the cut edges. | |||
| ==See also== | |||
| *] | |||
| ==External links== | |||
| * | |||
| ] | |||
| ] | |||
| ] | |||
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