/// <summary>
/// Create a TraceExampleItem and store it in a static dictionary.
/// </summary>
public static TraceExampleItem ByString(string description)
{
// See if there is data for this object is in trace.
var traceId = TraceableObjectManager.GetObjectIdFromTrace();
TraceExampleItem item = null;
int id;
if (traceId == null)
{
// If there's no id stored in trace for this object,
// then grab the next unused trace id.
id = TraceableObjectManager.GetNextUnusedID();
// Create an item
item = new TraceExampleItem(description);
// Remember to store the updated object in the trace object manager,
// so it's available to use the next time around.
TraceableObjectManager.RegisterTraceableObjectForId(id, item);
}
else
{
// If there's and id stored in trace, then retrieve the object stored
// with that id from the trace object manager.
item = (TraceExampleItem)TraceableObjectManager.GetTracedObjectById(traceId.IntID)
?? new TraceExampleItem(description);
// Update the item
item.Description = description;
}
return(item);
}
private PeriodicUpdateExample(double t, int id)
{
vertexCoords = new Point[width, length];
for (var x = 0; x < width; x += 1)
{
for (var y = 0; y < length; y += 1)
{
var z = Math.Sin(Math.Sqrt(Math.Pow(x, 2) + Math.Pow(y, 2)) - t);
vertexCoords[x, y] = Point.ByCoordinates(x, y, z);
}
}
t += 0.1;
if (t > Math.PI * 2)
{
t = 0.0;
}
// Remember to store the updated object in the trace object manager,
// so it's available to use the next time around.
TraceableObjectManager.RegisterTraceableObjectForId(id, t);
}
public static PeriodicUpdateExample PointField()
{
// See if the data for this object is in trace.
var traceId = TraceableObjectManager.GetObjectIdFromTrace();
var t = 0.0;
int id;
if (traceId == null)
{
// If there's no id stored in trace for this object,
// then grab the next unused trace id.
id = TraceableObjectManager.GetNextUnusedID();
}
else
{
// If there's and id stored in trace, then retrieve the object stored
// with that id from the trace object manager.
id = traceId.IntID;
t = (double)TraceableObjectManager.GetTracedObjectById(traceId.IntID);
}
return(new PeriodicUpdateExample(t, id));
}