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// Speed: angular units over time units.
// The Angle class is not used here since normalization is not what we want.
// Last modified by DWF 1997-09-28
// Once again we have unnecessary roundoff if rad_per_second is the wrong
// storage representation.
/*
Copyright (C) 1997 David Flater.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
class Speed {
protected:
double rad_per_second;
public:
enum units {SECOND, HOUR, JULIAN_CENTURY};
// Get.
double rad (units per) const;
double deg (units per) const;
// Set.
void rad (double inval, units per);
void deg (double inval, units per);
// Pretty-print degrees with specified number of digits after decimal.
// Uses static internal buffer. Field width is precision plus 11.
// The format imitates Table 1 in SP 98 (revs + remainder).
Dstr &ppdeg (unsigned precision, units per);
Speed &operator+= (Speed a);
Speed &operator*= (double a);
};
// Operations.
Speed operator+ (Speed a, Speed b);
Speed operator* (double a, Speed b);
class DegreesPerJulianCentury: public Speed {
public:
DegreesPerJulianCentury(double inval);
};
class DegreesPerHour: public Speed {
public:
DegreesPerHour(double inval);
};
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