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Sonnet User's Guide - Sonnet Software

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<strong>Sonnet</strong> User’s <strong>Guide</strong><br />

the two reference points; the user does not define an anchor point for a symmetric<br />

parameter. When the dimension is varied, each point moves relative to the anchor<br />

point. When defining your dimension parameter, you perform the following steps:<br />

• Select the first reference point.<br />

• Select the adjustable point set that moves with the first reference point.<br />

• Select the second reference point. The value of the parameter is the<br />

distance between the two reference points.<br />

• Select the adjustable point set that moves with the second reference<br />

point.<br />

There is a setting associated with each dimension parameter that determines how<br />

the adjustable point sets are moved. With the default, and simplest, option each<br />

point set moves one half the distance of the difference between the present value<br />

and the previous value out from the middle point, maintaining its relative positive<br />

to the reference point with which it is associated. For a discussion of all the options<br />

controlling moving adjustable point sets, see "Moving Adjustable Point Sets" on<br />

page 142.<br />

Note that the symmetric parameter is always defined as the distance between the<br />

reference points in either the X direction or the Y direction, never as a diagonal<br />

distance between them.<br />

140

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