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Improvements for precision handling

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This commit is contained in:
Thomas Krijnen
2015-01-06 14:09:28 +00:00
parent 0fd88be5a3
commit 61d73ebfd6
1 changed files with 13 additions and 4 deletions
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src/ifcgeom/IfcGeomObjects.cpp
+13 -4
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@@ -592,6 +592,9 @@ double UnitPrefixToValue( Ifc2x3::IfcSIPrefix::IfcSIPrefix v ) {
else return 1.0f;
}
static std::string unit_name = "METER";
static float unit_magnitude = 1.0f;
void IfcGeomObjects::InitPrecision() {
IfcGeom::SetValue(IfcGeom::GV_PRECISION, 0.00001);
@@ -617,7 +620,16 @@ void IfcGeomObjects::InitPrecision() {
}
}
if (any_precision_encountered) {
IfcGeom::SetValue(IfcGeom::GV_PRECISION, lowest_precision_encountered);
// Some arbitrary factor that has proven to work better for the models in the set of test files.
lowest_precision_encountered *= 10.;
lowest_precision_encountered *= unit_magnitude;
if (lowest_precision_encountered < 1.e-7) {
Logger::Message(Logger::LOG_WARNING, "Precision lower than 0.0000001 meter not enforced");
IfcGeom::SetValue(IfcGeom::GV_PRECISION, 1.e-7);
} else {
IfcGeom::SetValue(IfcGeom::GV_PRECISION, lowest_precision_encountered);
}
}
} catch (const IfcParse::IfcException& ex) {
std::stringstream ss;
@@ -626,9 +638,6 @@ void IfcGeomObjects::InitPrecision() {
}
}
static std::string unit_name = "METER";
static float unit_magnitude = 1.0f;
void IfcGeomObjects::InitUnits() {
// Set default units, set length to meters, angles to undefined
IfcGeom::SetValue(IfcGeom::GV_LENGTH_UNIT,1.0);