/// <summary> Performs transition from one space to another. </summary>
private void DoTransition(Space from, Space to)
{
bool isFromTopSpace = from.TileController.LodRange.Maximum < to.TileController.LodRange.Maximum;
bool hadRunningAnimation = from.Animator.IsRunningAnimation;
var coordinate = from.TileController.Coordinate;
// exit from old space
from.Leave();
// make transition
if (isFromTopSpace)
{
to.EnterTop(coordinate);
}
else
{
to.EnterBottom(coordinate);
}
// continue old space animation if it is running
if (hadRunningAnimation)
{
to.Animator.ContinueFrom(from.Animator);
}
// otherwise make instant transition
else
{
var zoom = isFromTopSpace
? to.TileController.LodRange.Minimum
: to.TileController.LodRange.Maximum + 0.99f;
to.Animator.AnimateTo(coordinate, zoom, TimeSpan.Zero, new LinearInterpolator());
}
}
/// <summary> Performs initial space transition based on zoom level and lod ranges. </summary>
private void DoTransition(GeoCoordinate coordinate, float zoom)
{
for (int i = 0; i < _lods.Count; ++i)
{
if (_lods[i].Contains((int)zoom))
{
_currentSpaceIndex = i;
break;
}
}
Space to = _spaces[_currentSpaceIndex];
// enter from top by default
to.EnterTop(coordinate);
// make instant animation
to.Animator.AnimateTo(coordinate, zoom, TimeSpan.Zero, new LinearInterpolator());
}