/// <summary>
/// Aggregates all upstream geometry for the given node then sends
/// a message that a visualization is ready
/// </summary>
/// <param name="node">The node whose upstream geometry you need.</param>
/// <returns>A render description containing all upstream geometry.</returns>
public void AggregateUpstreamRenderPackages(RenderTag tag)
{
var packages = new List<IRenderPackage>();
//send back just what the node needs
var watch = new Stopwatch();
watch.Start();
if (tag.Node == null)
{
//send back everything
List<NodeModel> copyOfNodesList = controller.DynamoModel.Nodes;
foreach (var modelNode in copyOfNodesList)
{
lock (modelNode.RenderPackagesMutex)
{
packages.AddRange(modelNode.RenderPackages);
}
}
watch.Stop();
Debug.WriteLine(String.Format("RENDER: {0} ellapsed for aggregating geometry for background preview.", watch.Elapsed));
if (packages.Any())
{
// if there are packages, send any that aren't empty
OnResultsReadyToVisualize(this,
new VisualizationEventArgs(
packages.Where(x => ((RenderPackage)x).IsNotEmpty()).Cast<RenderPackage>(), string.Empty, tag.TaskId));
}
else
{
// if there are no packages, still trigger an update
// so the view gets redrawn
OnResultsReadyToVisualize(this,
new VisualizationEventArgs(packages.Cast<RenderPackage>(), string.Empty, tag.TaskId));
}
}
else
{
watch.Stop();
Debug.WriteLine(String.Format("RENDER: {0} ellapsed for aggregating geometry for branch {1}.", watch.Elapsed, tag.Node.GUID));
//send back renderables for the branch
packages = GetUpstreamPackages(tag.Node.Inputs, 0).ToList();
if (packages.Any())
OnResultsReadyToVisualize(this, new VisualizationEventArgs(packages.Where(x => ((RenderPackage)x).IsNotEmpty()).Cast<RenderPackage>(), tag.Node.GUID.ToString(),tag.TaskId));
}
//LogVisualizationUpdateData(rd, watch.Elapsed.ToString());
}
