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Chapter 9. Creating and Using Scaled Dra... > The Mystical “Range-Of-Eight”

The Mystical “Range-Of-Eight”

Delete the symbol from Drawing 2. With Drawing 2 active, select File, Page Setup from the menus and change the scale from 1:4 to 1:30. Exit the dialog box. Now Ctrl+drag out a copy of the original rectangle SmartShape symbol from Drawing 1 into Drawing 2. Look at what transpired this time. Did all of your hard programming work just go up in smoke? Is Visio fatally flawed? Has global warming caused a shift in the way scaling works? No…none of the above.

If the scale of a master symbol or SmartShape symbol differs from the drawing scale, the symbol's scale changes to match the drawing scale. However, if the two scales differ by too much, Visio enables an internal bit of functionality triggered by what is referred to as “the range-of-eight.” If the scale ratios differ by more than a factor of eight, the symbol is “anti-scaled.” The symbol appears in the target diagram at the same printed size as in the source diagram. This keeps the symbol from becoming either drastically miniscule or from obscuring the drawing page. This does, however, limit the range of diagram scales within which the symbol can properly function.


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