216 lines
7.7 KiB
C++
216 lines
7.7 KiB
C++
/***************************************************************************
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* Copyright (c) 2009 Juergen Riegel (FreeCAD@juergen-riegel.net) *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#include "PreCompiled.h"
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#ifdef __GNUC__
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# include <unistd.h>
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#endif
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#include <QString>
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#include <QLocale>
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#include "Exception.h"
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#include "UnitsApi.h"
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#include "UnitsSchemaInternal.h"
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#include <cmath>
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using namespace Base;
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QString UnitsSchemaInternal::schemaTranslate(const Quantity &quant, double &factor, QString &unitString)
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{
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double UnitValue = std::abs(quant.getValue());
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Unit unit = quant.getUnit();
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// In order to get the right factor always express the target
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// units as internal units where length is in mm and mass in kg
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// Example:
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// For W/mm/K we get the factor of 1000000.0 because
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// W/mm/K = kg*m^2/s^3/mm/K
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// = 10e6 * kg*mm^2/s^3/mm/K
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// = 10e6 * kg*mm/s^3/K
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// now do special treatment on all cases seems necessary:
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if (unit == Unit::Length) { // Length handling ============================
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if (UnitValue < 0.000000001) {// smaller then 0.001 nm -> scientific notation
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unitString = QString::fromLatin1("mm");
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factor = 1.0;
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}
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else if(UnitValue < 0.001) {
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unitString = QString::fromLatin1("nm");
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factor = 0.000001;
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}
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else if (UnitValue < 0.1) {
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unitString = QString::fromUtf8("\xC2\xB5m");
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factor = 0.001;
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}
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else if (UnitValue < 10000.0) {
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unitString = QString::fromLatin1("mm");
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factor = 1.0;
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}
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else if (UnitValue < 10000000.0) {
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unitString = QString::fromLatin1("m");
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factor = 1000.0;
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}
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else if (UnitValue < 100000000000.0) {
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unitString = QString::fromLatin1("km");
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factor = 1000000.0;
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}
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else { // bigger then 1000 km -> scientific notation
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unitString = QString::fromLatin1("mm");
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factor = 1.0;
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}
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}
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else if (unit == Unit::Area) {
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// TODO Cascade for the Areas
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// default action for all cases without special treatment:
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unitString = quant.getUnit().getString();
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factor = 1.0;
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}
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else if (unit == Unit::Angle) {
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// TODO Cascade for the Areas
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// default action for all cases without special treatment:
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unitString = QString::fromUtf8("\xC2\xB0");
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factor = 1.0;
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}
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else if (unit == Unit::Mass) {
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// TODO Cascade for the weights
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// default action for all cases without special treatment:
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unitString = quant.getUnit().getString();
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factor = 1.0;
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}
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else if (unit == Unit::Density) {
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if (UnitValue < 0.0001) {
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unitString = QString::fromLatin1("kg/m^3");
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factor = 0.000000001;
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}
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else if (UnitValue < 1.0) {
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unitString = QString::fromLatin1("kg/cm^3");
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factor = 0.001;
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}
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else {
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unitString = QString::fromLatin1("kg/mm^3");
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factor = 1.0;
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}
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}
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else if (unit == Unit::ThermalConductivity) {
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if (UnitValue > 1000000) {
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unitString = QString::fromLatin1("W/mm/K");
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factor = 1000000.0;
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}
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else {
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unitString = QString::fromLatin1("W/m/K");
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factor = 1000.0;
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}
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}
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else if (unit == Unit::ThermalExpansionCoefficient) {
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if (UnitValue < 0.001) {
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unitString = QString::fromUtf8("\xC2\xB5m/m/K");
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factor = 0.000001;
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}
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else {
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unitString = QString::fromLatin1("mm/mm/K");
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factor = 1.0;
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}
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}
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else if (unit == Unit::SpecificHeat) {
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unitString = QString::fromLatin1("J/kg/K");
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factor = 1000000.0;
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}
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else if (unit == Unit::ThermalTransferCoefficient) {
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unitString = QString::fromLatin1("W/m^2/K");
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factor = 1.0;
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}
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else if ((unit == Unit::Pressure) || (unit == Unit::Stress)) {
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if (UnitValue < 10.0) {// Pa is the smallest
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unitString = QString::fromLatin1("Pa");
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factor = 0.001;
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}
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else if (UnitValue < 10000.0) {
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unitString = QString::fromLatin1("kPa");
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factor = 1.0;
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}
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else if (UnitValue < 10000000.0) {
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unitString = QString::fromLatin1("MPa");
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factor = 1000.0;
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}
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else if (UnitValue < 10000000000.0) {
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unitString = QString::fromLatin1("GPa");
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factor = 1000000.0;
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}
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else { // bigger -> scientific notation
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unitString = QString::fromLatin1("Pa");
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factor = 0.001;
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}
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}
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else if (unit == Unit::Power) {
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unitString = QString::fromLatin1("W");
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factor = 1000000;
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}
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else if (unit == Unit::ElectricPotential) {
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unitString = QString::fromLatin1("V");
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factor = 1000000;
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}
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else if (unit == Unit::SpecificEnergy) {
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unitString = QString::fromLatin1("m^2/s^2");
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factor = 1000000;
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}
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else if (unit == Unit::HeatFlux) {
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unitString = QString::fromLatin1("W/m^2");
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factor = 1.0;
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}
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else if (unit == Unit::Frequency) {
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if (UnitValue < 1000.0) {
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unitString = QString::fromLatin1("Hz");
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factor = 1.0;
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}
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else if (UnitValue < 1000000.0) {
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unitString = QString::fromLatin1("kHz");
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factor = 1000.0;
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}
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else if (UnitValue < 1000000000.0) {
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unitString = QString::fromLatin1("MHz");
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factor = 1000000.0;
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}
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else {
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unitString = QString::fromLatin1("GHz");
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factor = 1000000000.0;
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}
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}
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else if (unit == Unit::Velocity) {
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unitString = QString::fromLatin1("mm/s");
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factor = 1.0;
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}
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else if (unit == Unit::DynamicViscosity) {
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unitString = QString::fromLatin1("kg/(m*s)");
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factor = 0.001;
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}
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else {
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// default action for all cases without special treatment:
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unitString = quant.getUnit().getString();
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factor = 1.0;
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}
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return toLocale(quant, factor, unitString);
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}
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