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Ability to compute a math operation for scale-less point features

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This commit is contained in:
Daniel Girardeau-Montaut
2019-03-23 20:42:01 +01:00
parent ad0f323aee
commit 35bfc92dbf
7 changed files with 296 additions and 268 deletions
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FeaturesInterface.cpp
+48 -20
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@@ -67,11 +67,37 @@ CCLib::ScalarField* Feature::PrepareSF(ccPointCloud* cloud, const char* resultSF
return resultSF;
}
ScalarType Feature::PerformMathOp(double s1, double s2, Operation op)
{
ScalarType s = NAN_VALUE;
switch (op)
{
case Feature::MINUS:
s = static_cast<ScalarType>(s1 - s2);
break;
case Feature::PLUS:
s = static_cast<ScalarType>(s1 + s2);
break;
case Feature::DIVIDE:
if (std::abs(s2) > std::numeric_limits<ScalarType>::epsilon())
s = static_cast<ScalarType>(s1 / s2);
break;
case Feature::MULTIPLY:
s = static_cast<ScalarType>(s1 * s2);
break;
default:
assert(false);
break;
}
return s;
}
bool Feature::PerformMathOp(CCLib::ScalarField* sf1, const CCLib::ScalarField* sf2, Feature::Operation op)
{
if (!sf1 || !sf2 || sf1->size() != sf2->size() || op == Feature::NO_OPERATION)
{
//invalid input parameters
assert(false);
return false;
}
@@ -79,29 +105,31 @@ bool Feature::PerformMathOp(CCLib::ScalarField* sf1, const CCLib::ScalarField* s
{
ScalarType s1 = sf1->getValue(i);
ScalarType s2 = sf2->getValue(i);
ScalarType s = NAN_VALUE;
switch (op)
{
case Feature::MINUS:
s = s1 - s2;
break;
case Feature::PLUS:
s = s1 + s2;
break;
case Feature::DIVIDE:
if (std::abs(s2) > std::numeric_limits<ScalarType>::epsilon())
s = s1 / s2;
break;
case Feature::MULTIPLY:
s = s1 * s2;
break;
default:
assert(false);
break;
}
ScalarType s = PerformMathOp(s1, s2, op);
sf1->setValue(i, s);
}
sf1->computeMinAndMax();
return true;
}
bool Feature::PerformMathOp(const IScalarFieldWrapper& sf1, const IScalarFieldWrapper& sf2, Operation op, CCLib::ScalarField* outSF)
{
if (!outSF || sf1.size() != sf2.size() || sf1.size() != outSF->size() || op == Feature::NO_OPERATION)
{
//invalid input parameters
assert(false);
return false;
}
for (unsigned i = 0; i < sf1.size(); ++i)
{
double s1 = sf1.pointValue(i);
double s2 = sf2.pointValue(i);
ScalarType s = PerformMathOp(s1, s2, op);
outSF->setValue(i, s);
}
outSF->computeMinAndMax();
return true;
}