102 lines
3.3 KiB
C++
102 lines
3.3 KiB
C++
/*
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PIP - Platform Independent Primitives
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Distance units
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Ivan Pelipenko peri4ko@yandex.ru
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program 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 Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser 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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#include "piunits_class_distance.h"
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PIString PIUnits::Class::Distance::name(int type) const {
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switch (type) {
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case Meter: return "meter"_tr("PIUnitsDistance");
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case Inch: return "inch"_tr("PIUnitsDistance");
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case Mil: return "mil"_tr("PIUnitsDistance");
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case Foot: return "foot"_tr("PIUnitsDistance");
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case Yard: return "yard"_tr("PIUnitsDistance");
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case Angstrom: return "angstrom"_tr("PIUnitsDistance");
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case AstronomicalUnit: return "astronomical unit"_tr("PIUnitsDistance");
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}
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return Class::Internal::unknown;
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}
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PIString PIUnits::Class::Distance::unit(int type) const {
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switch (type) {
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case Meter: return "m"_tr("PIUnitsDistance");
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case Inch: return "\""_tr("PIUnitsDistance");
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case Mil: return "thou"_tr("PIUnitsDistance");
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case Foot: return "ft"_tr("PIUnitsDistance");
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case Yard: return "yd"_tr("PIUnitsDistance");
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case Angstrom: return "Å"_tr("PIUnitsDistance");
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case AstronomicalUnit: return "au"_tr("PIUnitsDistance");
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}
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return Class::Internal::unknown;
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}
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double PIUnits::Class::Distance::convert(double v, int from, int to) const {
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static constexpr double inch_to_m = 0.254;
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static constexpr double mil_to_m = 0.254 * 1E-3;
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static constexpr double foot_to_m = 0.3048;
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static constexpr double yard_to_m = 0.9144;
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static constexpr double angstrom_to_m = 1E-10;
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static constexpr double astronomical_unit_to_m = 149597870700.;
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double m = v;
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switch (from) {
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case Inch: m *= inch_to_m; break;
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case Mil: m *= mil_to_m; break;
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case Foot: m *= foot_to_m; break;
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case Yard: m *= yard_to_m; break;
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case Angstrom: m *= angstrom_to_m; break;
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case AstronomicalUnit: m *= astronomical_unit_to_m; break;
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}
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switch (to) {
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case Inch: m /= inch_to_m; break;
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case Mil: m /= mil_to_m; break;
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case Foot: m /= foot_to_m; break;
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case Yard: m /= yard_to_m; break;
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case Angstrom: m /= angstrom_to_m; break;
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case AstronomicalUnit: m /= astronomical_unit_to_m; break;
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}
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return m;
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}
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PIString PIUnits::Class::Distance::valueToString(double v, char format, int prec) const {
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return PIString::fromNumber(v, format, prec);
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}
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bool PIUnits::Class::Distance::supportPrefixes(int type) const {
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return type == Meter;
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}
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bool PIUnits::Class::Distance::supportPrefixesNon3(int type) const {
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return type == Meter;
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}
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bool PIUnits::Class::Distance::supportPrefixesGreater(int type) const {
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return ClassBase::supportPrefixesGreater(type);
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}
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bool PIUnits::Class::Distance::supportPrefixesSmaller(int type) const {
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return ClassBase::supportPrefixesSmaller(type);
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}
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