How does Voxler's Transform Scale change the XYZ coordinates?

The Transform module's Scale operation can operate around any point of an object.


For example, consider a data set with Z values as follows:

Z Min: 90
Z Max: 100
Range: 10
Midpoint: 95


Apply a Z Scale of 0.1 and the results are:

Z Min: 94.5
Z Max: 95.5
Range: 1
Midpoint: 95


The Z Min and Z Max are calculated by multiplying the Scale by the range, dividing by 2, and adding or subtracting from the midpoint.


Updated March 12, 2014

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