/// <summary>
/// Begin an operation to precache a spherical area of the map. This allows that area to load faster in future.
/// </summary>
/// <param name="center">the center of the area to precache</param>
/// <param name="radius">the radius (in meters) of the area to precache</param>
/// <param name="completionCallback">the callback to call whenever the precache operation completes</param>
/// <returns>an object with a Cancel() method to allow cancellation of the precache operation</returns>
public PrecacheOperation Precache(LatLong center, double radius, PrecacheOperationCompletedCallback completionCallback)
{
if (radius < 0.0 || radius > MaximumPrecacheRadius)
{
throw new ArgumentOutOfRangeException("radius", string.Format("radius outside of valid (0, {0}] range.", MaximumPrecacheRadius));
}
int operationId = m_precacheApiInternal.BeginPrecacheOperation(center, radius);
var operation = new PrecacheOperation(m_precacheApiInternal, operationId, completionCallback);
m_precacheOperations.Add(operationId, operation);
return(operation);
}
internal PrecacheOperation(PrecacheApiInternal internalApi, int operationId, PrecacheOperationCompletedCallback completionCallback)
{
m_internalApi = internalApi;
m_operationId = operationId;
m_completionCallback = completionCallback;
}
