mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-10 09:48:32 +00:00
Thomas Krijnen
73 lines
2.4 KiB
C++
73 lines
2.4 KiB
C++
/********************************************************************************
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* *
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* This file is part of IfcOpenShell. *
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* *
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* IfcOpenShell is free software: you can redistribute it and/or modify *
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* it under the terms of the Lesser GNU General Public License as published by *
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* the Free Software Foundation, either version 3.0 of the License, or *
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* (at your option) any later version. *
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* *
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* IfcOpenShell 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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* Lesser GNU General Public License for more details. *
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* *
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* You should have received a copy of the Lesser GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>. *
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* *
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********************************************************************************/
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#include "si_prefix.h"
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double ifcopenshell::si_prefix_to_value(const std::string& prefix) {
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if (prefix == "EXA") {
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return 1.e18;
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}
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if (prefix == "PETA") {
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return 1.e15;
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}
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if (prefix == "TERA") {
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return 1.e12;
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}
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if (prefix == "GIGA") {
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return 1.e9;
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}
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if (prefix == "MEGA") {
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return 1.e6;
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}
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if (prefix == "KILO") {
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return 1.e3;
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}
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if (prefix == "HECTO") {
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return 1.e2;
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}
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if (prefix == "DECA") {
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return 1.e1;
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}
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if (prefix == "DECI") {
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return 1.e-1;
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}
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if (prefix == "CENTI") {
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return 1.e-2;
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}
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if (prefix == "MILLI") {
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return 1.e-3;
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}
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if (prefix == "MICRO") {
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return 1.e-6;
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}
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if (prefix == "NANO") {
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return 1.e-9;
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}
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if (prefix == "PICO") {
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return 1.e-12;
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}
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if (prefix == "FEMTO") {
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return 1.e-15;
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}
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if (prefix == "ATTO") {
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return 1.e-18;
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}
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return 1.;
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}
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