/// <summary>
/// Updates a 2D aggregate based on current contents of dla_2d batch_queue - processes this
/// batch_queue and adds its contents to the simulation view.
/// </summary>
/// <param name="source"></param>
/// <param name="e"></param>
private void Aggregate2DUpdateOnTimedEvent(object source, ElapsedEventArgs e)
{
// lock around aggregate updating and batch queue processing to prevent
// non-dereferencable std::deque iterator run-time errors
lock (locker) {
// get and process the batch_queue from the DLA handle
BlockingCollection <KeyValuePair <int, int> > blocking_queue = dla_2d.ProcessBatchQueue();
// loop over blocking_queue adding contents to interface and dequeueing on each iteration
while (blocking_queue.Count != 0)
{
KeyValuePair <int, int> agg_kvp = blocking_queue.Take();
Point3D pos = new Point3D(agg_kvp.Key, agg_kvp.Value, 0);
aggregate_manager.AddParticle(pos, colour_list[(int)current_particles], 1.0);
++current_particles;
// dispatch GUI updates to UI thread
Dispatcher.Invoke(() => {
aggregate_manager.Update();
DynamicParticleLabel.Content = "Particles: " + current_particles;
});
}
}
}
/// <summary>
/// Render the points of the attractor type used.
/// </summary>
private void RenderAttractorGeometry()
{
if (!showAttractor || aggregate_manager == null)
{
return;
}
switch (attractor_type)
{
case ManagedAttractorType.Point: // render single point at origin
aggregate_manager.AddParticle(new Point3D(0.0, 0.0, 0.0), Colors.White, 1.0);
aggregate_manager.Update();
break;
case ManagedAttractorType.Line: // render line of length attractorsize_slider.Value symmetrical about origin
for (int i = -(int)attractorsize_slider.Value / 2; i < (int)attractorsize_slider.Value / 2; ++i)
{
aggregate_manager.AddParticle(new Point3D(i, 0.0, 0.0), Colors.White, 1.0);
aggregate_manager.Update();
}
break;
case ManagedAttractorType.Plane: // render plane of length, width attractorsize_slider.Value symmetrical about origin
for (int i = -(int)attractorsize_slider.Value / 2; i < (int)attractorsize_slider.Value / 2; ++i)
{
for (int j = -(int)attractorsize_slider.Value / 2; j < (int)attractorsize_slider.Value / 2; ++j)
{
aggregate_manager.AddParticle(new Point3D(i, j, 0.0), Colors.White, 1.0);
aggregate_manager.Update();
}
}
break;
case ManagedAttractorType.Circle: // render circle of radius attractorsize_slider.Value with centre at origin
for (double theta = 0.0; theta <= 2 * Math.PI; theta += Math.PI / 180.0)
{
double x = attractorsize_slider.Value * Math.Cos(theta);
double y = attractorsize_slider.Value * Math.Sin(theta);
aggregate_manager.AddParticle(new Point3D(x, y, 0.0), Colors.White, 1.0);
aggregate_manager.Update();
}
break;
}
}