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Rationalize the "pos" function

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"pos" now returns 1 if the argument is greater than 0, otherwise it returns 0.
This is consistent with the common mathematical definition of the "pos" function:

https://en.wikipedia.org/wiki/Sign_(mathematics)

However the previous implementation in which 1 was also returned for a 0
argument is useful in many situations so the "pos0" has been added which returns
1 if the argument is greater or equal to 0.  Additionally the "neg0" has been
added which returns 1 if if the argument is less than or equal to 0.
This commit is contained in:
Henry Weller
2017-06-22 14:32:18 +01:00
parent c7d9c6d17d
commit 7bdbab7f4e
101 changed files with 275 additions and 202 deletions
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8
src/functionObjects/field/fieldValues/surfaceFieldValue/surfaceFieldValue.C
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@ -582,14 +582,14 @@ processValues
case opSumDirection:
{
vector n(dict_.lookup("direction"));
return sum(pos(values*(Sf & n))*mag(values));
return sum(pos0(values*(Sf & n))*mag(values));
}
case opSumDirectionBalance:
{
vector n(dict_.lookup("direction"));
const scalarField nv(values*(Sf & n));
return sum(pos(nv)*mag(values) - neg(nv)*mag(values));
return sum(pos0(nv)*mag(values) - neg(nv)*mag(values));
}
default:
{
@ -617,7 +617,7 @@ processValues
n /= mag(n) + ROOTVSMALL;
const scalarField nv(n & values);
return sum(pos(nv)*n*(nv));
return sum(pos0(nv)*n*(nv));
}
case opSumDirectionBalance:
{
@ -625,7 +625,7 @@ processValues
n /= mag(n) + ROOTVSMALL;
const scalarField nv(n & values);
return sum(pos(nv)*n*(nv));
return sum(pos0(nv)*n*(nv));
}
case opAreaNormalAverage:
{