77 lines
2 KiB
C++
77 lines
2 KiB
C++
/**
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* routePath.hxx - convert a route to straight line segments, for graphical
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* output or display.
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*/
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// Written by James Turner, started 2010.
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//
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// Copyright (C) 2010 Curtis L. Olson
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#ifndef FG_ROUTE_PATH_HXX
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#define FG_ROUTE_PATH_HXX
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#include <memory>
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#include <Navaids/route.hxx>
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namespace flightgear
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{
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class Hold;
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class FlightPlan;
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class Via;
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}
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typedef std::vector<SGGeod> SGGeodVec;
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class RoutePath
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{
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public:
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RoutePath(const flightgear::FlightPlan* fp);
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~RoutePath();
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SGGeodVec pathForIndex(int index) const;
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SGGeod positionForIndex(int index) const;
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SGGeod positionForDistanceFrom(int index, double distanceM) const;
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double trackForIndex(int index) const;
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double distanceForIndex(int index) const;
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double distanceBetweenIndices(int from, int to) const;
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private:
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class RoutePathPrivate;
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void commonInit();
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double computeDistanceForIndex(int index) const;
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double distanceForVia(flightgear::Via *via, int index) const;
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SGGeodVec pathForHold(flightgear::Hold* hold) const;
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SGGeodVec pathForVia(flightgear::Via* via, int index) const;
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SGGeod positionAlongVia(flightgear::Via* via, int previousIndex, double distanceM) const;
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void interpolateGreatCircle(const SGGeod& aFrom, const SGGeod& aTo, SGGeodVec& r) const;
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std::auto_ptr<RoutePathPrivate> d;
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};
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#endif
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