private void OnRemoveUnreachableNodes(IReadOnlyCollection <Node> nodes)
{
var mask = new AddRemoveTransitiveHull(Presentation)
{
Add = false
}.Compute(nodes);
mask.Invert(Presentation);
Presentation.Masks().Push(mask);
}
// Show only nodes which can reach the target cluster
private GraphPresentation ReduceGraph(Cluster targetCluster, RelaxedGraphBuilder builder)
{
var presentation = new GraphPresentation();
presentation.Graph = builder.Graph;
var algo = new AddRemoveTransitiveHull(presentation);
algo.Add = false;
algo.Reverse = true;
var mask = algo.Compute(targetCluster.Nodes);
mask.Invert(presentation);
presentation.Masks().Push(mask);
presentation.Masks().Push(new RemoveNodesWithoutSiblings(presentation).Compute());
return(presentation);
}
private void SelectReachables(IReadOnlyCollection <Node> nodes)
{
// pass "Add = false" as we want the transitive hull of the visible nodes
var mask = new AddRemoveTransitiveHull(Presentation)
{
Add = false
}.Compute(nodes);
var selection = Presentation.GetPropertySetFor <Selection>();
var edges = Presentation.GetModule <ITransformationModule>().Graph.Edges
.Where(Presentation.Picking.Pick)
// check for "false" as we have a "hide" mask
.Where(e => mask.IsSet(e.Source) == false && mask.IsSet(e.Target) == false);
foreach (var e in edges)
{
selection.Get(e.Id).IsSelected = true;
selection.Get(e.Source.Id).IsSelected = true;
selection.Get(e.Target.Id).IsSelected = true;
}
}
