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Implement the three major unit system schemas

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jriegel
2013-12-05 18:16:31 +01:00
parent b52de075e1
commit eb5cc8ed6c
14 changed files with 220 additions and 51 deletions
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67
src/Base/UnitsSchemaMKS.cpp
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@@ -39,17 +39,58 @@ QString UnitsSchemaMKS::schemaTranslate(Base::Quantity quant,double &factor,QStr
double UnitValue = quant.getValue();
Unit unit = quant.getUnit();
return QString::fromAscii("%1 %2").arg(UnitValue).arg(QString::fromAscii(unit.getString().c_str()));
// now do special treatment on all cases seams nececarry:
if(unit == Unit::Length){ // Length handling ============================
if(UnitValue < 0.000000001){// smaller then 0.001 nm -> scientific notation
unitString = QString::fromLatin1("mm");
factor = 1.0;
}else if(UnitValue < 0.001){
unitString = QString::fromLatin1("nm");
factor = 0.000001;
}else if(UnitValue < 1.0){
unitString = QString::fromLatin1("ym");
factor = 0.001;
}else if(UnitValue < 100.0){
unitString = QString::fromLatin1("mm");
factor = 1.0;
}else if(UnitValue < 10000000.0){
unitString = QString::fromLatin1("m");
factor = 1000.0;
}else if(UnitValue < 100000000000.0 ){
unitString = QString::fromLatin1("km");
factor = 10000000.0;
}else{ // bigger then 1000 km -> scientific notation
unitString = QString::fromLatin1("mm");
factor = 1.0;
}
}else if (unit == Unit::Area){
// TODO Cascade for the Areas
// default action for all cases without special treatment:
unitString = QString::fromLatin1(quant.getUnit().getString().c_str());
factor = 1.0;
}else if (unit == Unit::Mass){
// TODO Cascade for the wights
// default action for all cases without special treatment:
unitString = QString::fromLatin1(quant.getUnit().getString().c_str());
factor = 1.0;
}else if (unit == Unit::Pressure){
if(UnitValue < 10.0){// Pa is the smallest
unitString = QString::fromLatin1("Pa");
factor = 0.001;
}else if(UnitValue < 10000.0){
unitString = QString::fromLatin1("kPa");
factor = 1.0;
}else if(UnitValue < 10000000.0){
unitString = QString::fromLatin1("GPa");
factor = 1000.0;
}else{ // bigger then 1000 GPa -> scientific notation
unitString = QString::fromLatin1("Pa");
factor = 1.0;
}
}else{
// default action for all cases without special treatment:
unitString = QString::fromLatin1(quant.getUnit().getString().c_str());
factor = 1.0;
}
return QString::fromLatin1("%1 %2").arg(UnitValue / factor).arg(unitString);
}
//
//Base::Quantity UnitsSchemaMKS::schemaPrefUnit(const Base::Unit &unit,QString &outUnitString)
//{
// if(unit == Unit::Length){
// outUnitString = QString::fromAscii("m");
// return Base::Quantity(1/1000.0,Unit::Length);
// }else{
// outUnitString = QString::fromAscii(unit.getString().c_str());
// return Base::Quantity(1,unit);
// }
//
//}