[Units]Add Meters-only schema (#7395)

- use correct unit for velocity - typo in include guard
2023-11-12 07:41:17 -05:00
parent ca80f8eee2
commit a2e26f5002
5 changed files with 195 additions and 43 deletions
--- a/src/Base/UnitsSchemaMeterDecimal.cpp
+++ b/src/Base/UnitsSchemaMeterDecimal.cpp
@@ -0,0 +1,89 @@
+/***************************************************************************
+ *   Copyright (c) WandererFan <wandererfan@gmail.com>                     *
+ *                                                                         *
+ *   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                                *
+ *                                                                         *
+ ***************************************************************************/
+
+/*  Metric units schema intended for design of large objects
+ *  Lengths are always in metres.
+ *  Areas are always in square metres
+ *  Volumes are always in cubic metres
+ *  Angles in decimal degrees (use degree symbol)
+ *  Velocities in m/sec
+ */
+
+#include "PreCompiled.h"
+#ifdef __GNUC__
+# include <unistd.h>
+#endif
+
+#include <QString>
+
+#include "UnitsSchemaMeterDecimal.h"
+
+
+using namespace Base;
+
+
+QString UnitsSchemaMeterDecimal::schemaTranslate(const Base::Quantity& quant, double &factor, QString &unitString)
+{
+    Unit unit = quant.getUnit();
+    if (unit == Unit::Length) {
+        // all length units in metres
+        unitString = QString::fromLatin1("m");
+        factor = 1e3;
+    }
+    else if (unit == Unit::Area) {
+        // all area units in square meters
+        unitString = QString::fromLatin1("m^2");
+        factor = 1e6;
+    }
+    else if (unit == Unit::Volume) {
+        // all area units in cubic meters
+        unitString = QString::fromLatin1("m^3");
+        factor = 1e9;
+    }
+    else if (unit == Unit::Power) {
+        // watts
+        unitString = QString::fromLatin1("W");
+        factor = 1000000;
+    }
+    else if (unit == Unit::ElectricPotential) {
+        // volts
+        unitString = QString::fromLatin1("V");
+        factor = 1000000;
+    }
+    else if (unit == Unit::HeatFlux) {
+        // watts per square metre
+        unitString = QString::fromLatin1("W/m^2");
+        factor = 1.0;
+    }
+    else if (unit == Unit::Velocity) {
+        // metres per second
+        unitString = QString::fromLatin1("m/s");
+        factor = 1e3;
+    }
+    else {
+        // default action for all cases without special treatment:
+        unitString = quant.getUnit().getString();
+        factor = 1.0;
+    }
+
+    return toLocale(quant, factor, unitString);
+}