private void playFromPosition(Timeline timeline, double time,
ViewDirection pvd, ViewDirection nvd)
{
if (pvd != null && nvd != null)
{
double alpha = ScriptPlayer.ComputeAlpha(time - pvd.Time, pvd, nvd);
double span = (nvd.Longitude - pvd.Longitude) % 360;
if (span >= 180)
{
span -= 360;
}
else if (span < -180)
{
span += 360;
}
double lon = pvd.Longitude + alpha * span;
double lat = pvd.Latitude + alpha * (nvd.Latitude - pvd.Latitude);
double ele = pvd.Elevation + alpha * (nvd.Elevation - pvd.Elevation);
this.globe.SetViewDirection(pvd.SpecForm, lat, lon, ele);
}
else if (pvd != null)
{
this.globe.SetViewDirection(pvd.SpecForm, pvd.Latitude,
pvd.Longitude, pvd.Elevation);
}
}
override public void OnPulse(Timeline timeline, double time)
{
ViewPosition pvp = timeline.GetMostPreviousInTime(time) as ViewPosition;
ViewPosition nvp = timeline.GetNextInTime(time) as ViewPosition;
if (pvp != null && nvp != null)
{
double alpha = ScriptPlayer.ComputeAlpha(time - pvp.Time, pvp, nvp);
double span = (nvp.Longitude - pvp.Longitude) % 360;
if (span >= 180)
{
span -= 360;
}
else if (span < -180)
{
span += 360;
}
double lon = pvp.Longitude + alpha * span;
double lat = pvp.Latitude + alpha * (nvp.Latitude - pvp.Latitude);
double ele = pvp.Elevation + alpha * (nvp.Elevation - pvp.Elevation);
this.globe.SetViewPosition(lat, lon, ele);
}
else if (pvp != null)
{
this.globe.SetViewPosition(pvp.Latitude, pvp.Longitude, pvp.Elevation);
}
}
override public void OnPulse(Timeline timeline, double time)
{
VerticalExaggeration pve =
timeline.GetMostPreviousInTime(time) as VerticalExaggeration;
VerticalExaggeration nve =
timeline.GetNextInTime(time) as VerticalExaggeration;
if (pve != null && nve != null)
{
double alpha = ScriptPlayer.ComputeAlpha(time - pve.Time, pve, nve);
double span = nve.Exaggeration - pve.Exaggeration;
double ve = pve.Exaggeration + alpha * span;
this.globe.SetVerticalExaggeration(ve);
}
else if (pve != null)
{
this.globe.SetVerticalExaggeration(pve.Exaggeration);
}
}
private void playFromAngles(Timeline timeline, double time,
ViewDirection pvd, ViewDirection nvd)
{
if (pvd != null && nvd != null && pvd.SpecForm.Equals(nvd.SpecForm))
{
double alpha = ScriptPlayer.ComputeAlpha(time - pvd.Time, pvd, nvd);
double hSpan = nvd.HorizontalAngle - pvd.HorizontalAngle;
double vSpan = nvd.VerticalAngle - pvd.VerticalAngle;
double horizontal = pvd.HorizontalAngle + alpha * hSpan;
double vertical = pvd.VerticalAngle + alpha * vSpan;
this.globe.SetViewDirection(pvd.SpecForm, horizontal, vertical, 0);
}
else if (pvd != null)
{
this.globe.SetViewDirection(pvd.SpecForm, pvd.HorizontalAngle,
pvd.VerticalAngle, 0);
}
}
