120 lines
5.6 KiB
C++
120 lines
5.6 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 "Exception.h"
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#include "UnitsApi.h"
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#include "UnitsSchemaImperial1.h"
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using namespace Base;
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//void UnitsSchemaImperial1::setSchemaUnits(void){
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// // here you could change the constances used by the parser (defined in Quantity.cpp)
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// Quantity::Inch = Quantity (25.4 ,Unit(1));
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// Quantity::Foot = Quantity (304.8 ,Unit(1));
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// Quantity::Thou = Quantity (0.0254 ,Unit(1));
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// Quantity::Yard = Quantity (914.4 ,Unit(1));
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// Quantity::Mile = Quantity (1609344.0 ,Unit(1));
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//}
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//
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//void UnitsSchemaImperial1::resetSchemaUnits(void){
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// // set units to US customary / Imperial units
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// Quantity::Inch = Quantity (25.4 ,Unit(1));
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// Quantity::Foot = Quantity (304.8 ,Unit(1));
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// Quantity::Thou = Quantity (0.0254 ,Unit(1));
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// Quantity::Yard = Quantity (914.4 ,Unit(1));
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// Quantity::Mile = Quantity (1609344.0 ,Unit(1));
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//}
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QString UnitsSchemaImperial1::schemaTranslate(Base::Quantity quant,double &factor,QString &unitString)
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{
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double UnitValue = quant.getValue();
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Unit unit = quant.getUnit();
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// for imperial user/programmer mind; UnitValue is in internal system, that means
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// mm/kg/s. And all combined units have to be calculated from there!
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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 < 0.00000254){// smaller then 0.001 thou -> inch and scientific notation
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unitString = QString::fromLatin1("in");
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factor = 25.4;
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}else if(UnitValue < 2.54){ // smaller then 0.1 inch -> Thou (mil)
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unitString = QString::fromLatin1("thou");
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factor = 0.0254;
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}else if(UnitValue < 304.8){
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unitString = QString::fromLatin1("in");
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factor = 25.4;
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}else if(UnitValue < 914.4){
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unitString = QString::fromLatin1("ft");
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factor = 304.8;
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}else if(UnitValue < 1609344.0){
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unitString = QString::fromLatin1("yd");
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factor = 914.4;
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}else if(UnitValue < 1609344000.0 ){
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unitString = QString::fromLatin1("mi");
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factor = 1609344.0;
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}else{ // bigger then 1000 mi -> scientific notation
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unitString = QString::fromLatin1("in");
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factor = 25.4;
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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 = QString::fromLatin1("in^2");
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factor = 645.16;
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}else if (unit == Unit::Volume){
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// TODO Cascade for the Volume
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// default action for all cases without special treatment:
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unitString = QString::fromLatin1("in^3");
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factor = 16387.064;
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}else if (unit == Unit::Mass){
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// TODO Cascade for the wights
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// default action for all cases without special treatment:
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unitString = QString::fromLatin1("lb");
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factor = 0.45359237;
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}else if (unit == Unit::Pressure){
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if(UnitValue < 145.038){// psi is the smallest
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unitString = QString::fromLatin1("psi");
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factor = 0.145038;
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}else if(UnitValue < 145038){
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unitString = QString::fromLatin1("ksi");
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factor = 145.038;
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}else{ // bigger then 1000 ksi -> psi + scientific notation
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unitString = QString::fromLatin1("psi");
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factor = 0.145038;
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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 = QString::fromLatin1(quant.getUnit().getString().c_str());
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factor = 1.0;
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}
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return QString::fromLatin1("%1 %2").arg(UnitValue / factor).arg(unitString);
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}
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