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UnitsSchemaMKS.cpp
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UnitsSchemaMKS.cpp
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/***************************************************************************
* Copyright (c) 2009 Juergen Riegel (FreeCAD@juergen-riegel.net) *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#include "PreCompiled.h"
#ifdef __GNUC__
# include <unistd.h>
#endif
#include <QString>
#include <QLocale>
#include "Exception.h"
#include "UnitsApi.h"
#include "UnitsSchemaMKS.h"
#include <cmath>
using namespace Base;
QString UnitsSchemaMKS::schemaTranslate(const Quantity &quant, double &factor, QString &unitString)
{
double UnitValue = std::abs(quant.getValue());
Unit unit = quant.getUnit();
// now do special treatment on all cases seems necessary:
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 < 0.1) {
unitString = QString::fromUtf8("\xC2\xB5m");
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 = 1000000.0;
}
else { // bigger then 1000 km -> scientific notation
unitString = QString::fromLatin1("mm");
factor = 1.0;
}
}
else if (unit == Unit::Area) {
if (UnitValue < 100.0) {// smaller than 1 square cm
unitString = QString::fromLatin1("mm^2");
factor = 1.0;
}
else if (UnitValue < 10000000000000.0) {
unitString = QString::fromLatin1("m^2");
factor = 1000000.0;
}
else { // bigger then 1 square kilometer
unitString = QString::fromLatin1("km^2");
factor = 1000000000000.0;
}
}
else if (unit == Unit::Mass) {
// TODO Cascade for the wights
// default action for all cases without special treatment:
unitString = quant.getUnit().getString();
factor = 1.0;
}
else if (unit == Unit::Volume) {
if (UnitValue < 1000000.0) {// smaller than 10 cubic cm
unitString = QString::fromLatin1("mm^3");
factor = 1.0;
}
else if (UnitValue < 1000000000000000000.0) {
unitString = QString::fromLatin1("m^3");
factor = 1000000000.0;
}
else { // bigger then 1 cubic kilometer
unitString = QString::fromLatin1("km^3");
factor = 1000000000000000000.0;
}
}
else if ((unit == Unit::Pressure) || (unit == Unit::Stress)) {
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("MPa");
factor = 1000.0;
}
else if (UnitValue < 10000000000.0) {
unitString = QString::fromLatin1("GPa");
factor = 1000000.0;
}
else { // bigger then 1000 GPa -> scientific notation
unitString = QString::fromLatin1("Pa");
factor = 0.001;
}
}
else if (unit == Unit::ThermalConductivity) {
if (UnitValue < 1000) {
unitString = QString::fromLatin1("W/mm/K");
factor = 1.0;
}
else {
unitString = QString::fromLatin1("W/m/K");
factor = 1000.0;
}
}
else if (unit == Unit::ThermalExpansionCoefficient) {
if (UnitValue < 0.001) {
unitString = QString::fromUtf8("\xC2\xB5m/m/K");
factor = 0.000001;
}
else {
unitString = QString::fromLatin1("m/m/K");
factor = 1.0;
}
}
else if (unit == Unit::SpecificHeat) {
unitString = QString::fromLatin1("J/kg/K");
factor = 1000000.0;
}
else if (unit == Unit::ThermalTransferCoefficient) {
unitString = QString::fromLatin1("W/m^2/K");
factor = 1.0;
}
else if (unit == Unit::Power) {
unitString = QString::fromLatin1("W");
factor = 1000000;
}
else if (unit == Unit::HeatFlux) {
unitString = QString::fromLatin1("W/m^2");
factor = 1.0;
}
else {
// default action for all cases without special treatment:
unitString = quant.getUnit().getString();
factor = 1.0;
}
return toLocale(quant, factor, unitString);
}