src.gov.nasa.worldwind.view.orbit.OrbitViewMoveToZoomAnimator Maven / Gradle / Ivy
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World Wind is a collection of components that interactively display 3D geographic information within Java applications or applets.
/*
* Copyright (C) 2012 United States Government as represented by the Administrator of the
* National Aeronautics and Space Administration.
* All Rights Reserved.
*/
package gov.nasa.worldwind.view.orbit;
import gov.nasa.worldwind.animation.MoveToDoubleAnimator;
import gov.nasa.worldwind.util.PropertyAccessor;
/**
* @author jym
* @version $Id: OrbitViewMoveToZoomAnimator.java 1171 2013-02-11 21:45:02Z dcollins $
*/
public class OrbitViewMoveToZoomAnimator extends MoveToDoubleAnimator
{
BasicOrbitView orbitView;
boolean endCenterOnSurface;
OrbitViewMoveToZoomAnimator(BasicOrbitView orbitView, Double end, double smoothing,
PropertyAccessor.DoubleAccessor propertyAccessor, boolean endCenterOnSurface)
{
super(end, smoothing, propertyAccessor);
this.orbitView = orbitView;
this.endCenterOnSurface = endCenterOnSurface;
}
protected void setImpl(double interpolant)
{
Double newValue = this.nextDouble(interpolant);
if (newValue == null)
return;
this.propertyAccessor.setDouble(newValue);
}
public Double nextDouble(double interpolant)
{
double newValue = (1 - interpolant) * propertyAccessor.getDouble() + interpolant * this.end;
if (Math.abs(newValue - propertyAccessor.getDouble()) < minEpsilon)
{
this.stop();
if (this.endCenterOnSurface)
orbitView.setViewOutOfFocus(true);
return(null);
}
return newValue;
}
}