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OpenSpace/include/openspace/navigation/path.h

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/*****************************************************************************************
* *
* OpenSpace *
* *
* Copyright (c) 2014-2021 *
* *
* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
* software and associated documentation files (the "Software"), to deal in the Software *
* without restriction, including without limitation the rights to use, copy, modify, *
* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
* permit persons to whom the Software is furnished to do so, subject to the following *
* conditions: *
* *
* The above copyright notice and this permission notice shall be included in all copies *
* or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
****************************************************************************************/
#ifndef __OPENSPACE_CORE___PATH___H__
#define __OPENSPACE_CORE___PATH___H__
#include <openspace/navigation/pathcurve.h>
#include <openspace/navigation/waypoint.h>
#include <optional>
#include <vector>
namespace openspace {
struct CameraPose;
} // namespace openspace
namespace openspace::interaction {
class Path {
public:
enum CurveType {
AvoidCollision,
Linear,
ZoomOutOverview
};
Path(Waypoint start, Waypoint end, CurveType type,
std::optional<double> duration = std::nullopt);
Waypoint startPoint() const;
Waypoint endPoint() const;
double duration() const;
double pathLength() const;
std::vector<glm::dvec3> controlPoints() const;
CameraPose traversePath(double dt);
std::string currentAnchor() const;
bool hasReachedEnd() const;
CameraPose interpolatedPose(double distance) const;
private:
glm::dquat interpolateRotation(double u) const;
double speedAlongPath(double traveledDistance);
Waypoint _start;
Waypoint _end;
double _duration;
CurveType _curveType;
std::unique_ptr<PathCurve> _curve;
double _speedFactorFromDuration = 1.0;
// Playback variables
double _traveledDistance = 0.0;
double _progressedTime = 0.0; // Time since playback started
};
} // namespace openspace::interaction
#endif // __OPENSPACE_CORE___PATH___H__