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#28

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This commit is contained in:
Thomas Krijnen
2016-05-24 13:50:50 +02:00
parent 85ddae1228
commit 38d1ec7a78
4 changed files with 71 additions and 37 deletions
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src/ifcgeom/IfcGeomFunctions.cpp
+25 -32
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@@ -1293,43 +1293,36 @@ std::pair<std::string, double> IfcGeom::Kernel::initializeUnits(IfcSchema::IfcUn
if (!units || !units->size()) {
Logger::Message(Logger::LOG_ERROR, "No unit information found");
} else {
for ( IfcEntityList::it it = units->begin(); it != units->end(); ++ it ) {
for (IfcEntityList::it it = units->begin(); it != units->end(); ++it) {
std::string current_unit_name = "";
IfcUtil::IfcBaseClass* base = *it;
IfcSchema::IfcSIUnit* unit = 0;
double value = 1.f;
if ( base->is(IfcSchema::Type::IfcConversionBasedUnit) ) {
IfcSchema::IfcConversionBasedUnit* u = (IfcSchema::IfcConversionBasedUnit*)base;
current_unit_name = u->Name();
IfcSchema::IfcMeasureWithUnit* u2 = u->ConversionFactor();
IfcSchema::IfcUnit* u3 = u2->UnitComponent();
if ( u3->is(IfcSchema::Type::IfcSIUnit) ) {
unit = (IfcSchema::IfcSIUnit*) u3;
}
IfcSchema::IfcValue* v = u2->ValueComponent();
// Quick hack to get the numeric value from an IfcValue:
const double f = *v->entity->getArgument(0);
value *= f;
} else if ( base->is(IfcSchema::Type::IfcSIUnit) ) {
unit = (IfcSchema::IfcSIUnit*)base;
}
if ( unit ) {
if ( unit->hasPrefix() ) {
value *= IfcParse::IfcSIPrefixToValue(unit->Prefix());
}
IfcSchema::IfcUnitEnum::IfcUnitEnum type = unit->UnitType();
if ( type == IfcSchema::IfcUnitEnum::IfcUnit_LENGTHUNIT ) {
setValue(IfcGeom::Kernel::GV_LENGTH_UNIT,value);
if (current_unit_name.empty()) {
if (unit->hasPrefix()) {
current_unit_name = IfcSchema::IfcSIPrefix::ToString(unit->Prefix());
if (base->is(IfcSchema::Type::IfcNamedUnit)) {
IfcSchema::IfcNamedUnit* named_unit = base->as<IfcSchema::IfcNamedUnit>();
if (named_unit->UnitType() == IfcSchema::IfcUnitEnum::IfcUnit_LENGTHUNIT ||
named_unit->UnitType() == IfcSchema::IfcUnitEnum::IfcUnit_PLANEANGLEUNIT)
{
std::string current_unit_name;
const double current_unit_magnitude = IfcParse::get_SI_equivalent(named_unit);
if (current_unit_magnitude != 0.) {
if (named_unit->is(IfcSchema::Type::IfcConversionBasedUnit)) {
IfcSchema::IfcConversionBasedUnit* u = (IfcSchema::IfcConversionBasedUnit*)base;
current_unit_name = u->Name();
} else if (named_unit->is(IfcSchema::Type::IfcSIUnit)) {
IfcSchema::IfcSIUnit* si_unit = named_unit->as<IfcSchema::IfcSIUnit>();
if (si_unit->hasPrefix()) {
current_unit_name = IfcSchema::IfcSIPrefix::ToString(si_unit->Prefix()) + unit_name;
}
current_unit_name += IfcSchema::IfcSIUnitName::ToString(si_unit->Name());
}
if (named_unit->UnitType() == IfcSchema::IfcUnitEnum::IfcUnit_LENGTHUNIT) {
unit_name = current_unit_name;
unit_magnitude = current_unit_magnitude;
setValue(IfcGeom::Kernel::GV_LENGTH_UNIT, current_unit_magnitude);
} else {
setValue(IfcGeom::Kernel::GV_PLANEANGLE_UNIT, current_unit_magnitude);
}
current_unit_name += IfcSchema::IfcSIUnitName::ToString(unit->Name());
}
unit_magnitude = value;
unit_name = current_unit_name;
} else if ( type == IfcSchema::IfcUnitEnum::IfcUnit_PLANEANGLEUNIT ) {
setValue(IfcGeom::Kernel::GV_PLANEANGLE_UNIT, value);
}
}
}