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#pragma once
//##########################################################################
//# #
//# CLOUDCOMPARE PLUGIN: qAnimation #
//# #
//# 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; version 2 or later of the License. #
//# #
//# 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. #
//# #
//# COPYRIGHT: Ryan Wicks, 2G Robotics Inc., 2015 #
//# #
//##########################################################################
#include "ExtendedViewport.h"
class ccPolyline;
//! The ViewInterpolate class
/** This class takes pointers to two viewport objects, and returns intermediate viewports between over a set number of steps.
**/
class ViewInterpolate
{
public:
//! Constructor from two viewports and a number of steps
ViewInterpolate( const ExtendedViewportParameters& view1, const ExtendedViewportParameters& view2, unsigned int stepCount = 0 );
//! Sets the smooth trajectory (optional)
void setSmoothTrajectory( ccPolyline* smoothTrajectory,
ccPolyline* smoothTrajectoryReversed,
unsigned i1,
unsigned i2,
PointCoordinateType length);
//! Returns the first viewport object
inline const ccViewportParameters& view1 () const { return m_view1.params; }
// Returns the second viewport object
inline const ccViewportParameters& view2 () const { return m_view2.params; }
//! Interpolates the 2 viewports at a given (relative) position
bool interpolate(ExtendedViewportParameters& viewport, double ratio ) const;
//! Returns the next viewport
bool nextView (ExtendedViewportParameters& viewport );
//! Returns the current step
inline unsigned int currentStep () { return m_currentStep; }
//! Sets the current step
inline void setCurrentStep ( unsigned int step ) { m_currentStep = step; }
//! Returns the max number of steps
inline unsigned int maxStep() { return m_totalSteps; }
//! Sets the max number of steps
inline void setMaxStep ( unsigned int stepCount ) { m_totalSteps = stepCount; }
//! Resets the interpolator
inline void reset() { m_currentStep = 0; }
private:
ExtendedViewportParameters m_view1;
ExtendedViewportParameters m_view2;
unsigned int m_totalSteps;
unsigned int m_currentStep;
ccPolyline *smoothTrajectory, *smoothTrajectoryReversed;
unsigned smoothTrajStartIndex, smoothTrajStopIndex, smoothTrajCurrentIndex;
PointCoordinateType smoothSegmentLength, smoothCurrentLength;
};
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