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In what order are Tag results calculated? They are
always calculated from left to right and from top to bottom. In other words, it
does NOT matter what the number of the Tag is, and the order of calculation is
unaffected by the Tag number.
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When we go to our Layout again and again and insert
new Tags, then they will anyway get higher Tag numbers than others that already
appear below them in the Layout, and it does not matter. For example, we can
see here that tags 84 & 85 were added in a later round of design than Tag
74, and appear before Tag 74 in terms of order of Calculation. This is no
problem, as results are always calculated left to right and top to bottom.
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Then how do we manipulate some Tags to be
calculated after others? For example, if a Tag depends on a result of another
Tag that must already be known, but appears before that Tag in order of
Calculation? Well, that's an easy solve, because we can raise the 'execution
iteration' of any Tag. In other words, we can have any number of rounds of
Calculation, and in any calculation iteration, only some Tags are calculated,
still from left to right and top to bottom, and then in the next round some
other Tags are calculated, and so on.
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As an example, what if these 'Total Tags' here are
appearing before the Tags they use as Input, in the Calculation order? If they
do, then we can just raise their execution iteration to the next level, and
then for sure they will be calculated AFTER the others. It can be done
manually, or by the automatic function.
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And now these Tags have been changed to the next
Execution Iteration and will only be calculated in round 2, so it is absolutely
certain, whatever the order of appearance in the left-to-right and
top-to-bottom appearance, it is absolutely certain that the Tags that are used
as Input to the Totals will be calculated first, in round 1, while the Totals
will be calculated in round 2.
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