//--------------------------------------------------------------------------------------------------
public override bool Start()
{
if (_TargetShape != _TargetBody?.Shape)
{
_OverriddenVisualShape = WorkspaceController.VisualShapes.GetVisualShape(_TargetBody);
if (_OverriddenVisualShape != null)
{
_OverriddenVisualShape.OverrideBrep = _TargetShape.GetTransformedBRep();
WorkspaceController.Invalidate();
}
}
var toolAction = new SelectSubshapeAction(this, SubshapeTypeHelper.GetTypes(_SubshapeType), _TargetBody, _SelectionFilter);
if (!WorkspaceController.StartToolAction(toolAction))
{
return(false);
}
toolAction.Finished += _OnActionFinished;
StatusText = _StatusText;
switch (_SubshapeType)
{
case SubshapeType.Vertex:
WorkspaceController.HudManager?.SetCursor(Cursors.SelectVertex);
break;
case SubshapeType.Edge:
WorkspaceController.HudManager?.SetCursor(Cursors.SelectEdge);
break;
case SubshapeType.Wire:
WorkspaceController.HudManager?.SetCursor(Cursors.SelectWire);
break;
case SubshapeType.Face:
WorkspaceController.HudManager?.SetCursor(Cursors.SelectFace);
break;
}
return(true);
}
//--------------------------------------------------------------------------------------------------
protected void AddNamedSubshape(string name, TopoDS_Shape shape, int index)
{
var newItem = new NamedSubshape()
{
Type = SubshapeTypeHelper.GetType(shape),
Name = name,
Index = index,
Shape = shape
};
// Update shape if type/name/index already exists
var sameIndex = _NamedSubshapes.FindIndex(ns => ns.Name == newItem.Name && ns.Index == newItem.Index && ns.Type == newItem.Type);
if (sameIndex >= 0)
{
_NamedSubshapes[sameIndex] = newItem;
}
else
{
_NamedSubshapes.Add(newItem);
}
}
//--------------------------------------------------------------------------------------------------
public virtual SubshapeReference GetSubshapeReference(TopoDS_Shape ocSubshape)
{
EnsureHistory();
var type = SubshapeTypeHelper.GetType(ocSubshape);
// Is this a named subshape?
var namedSubshapeIndex = _NamedSubshapes.FindIndex(ns => ns.Shape.IsSame(ocSubshape));
if (namedSubshapeIndex >= 0)
{
return(new SubshapeReference(type, Guid, _NamedSubshapes[namedSubshapeIndex].Name, _NamedSubshapes[namedSubshapeIndex].Index));
}
// Search in shape
var ocShape = GetBRep();
if (ocShape == null)
{
return(null);
}
switch (type)
{
case SubshapeType.Edge:
return(__FindReferenceInList(ocShape.Edges()));
case SubshapeType.Face:
return(__FindReferenceInList(ocShape.Faces()));
case SubshapeType.Vertex:
return(__FindReferenceInList(ocShape.Vertices()));
default:
throw new NotImplementedException();
}
//----
SubshapeReference __FindReferenceInList(IList shapes)
{
TopoDS_Shape shape = null;
var sameShapes = shapes.Cast <TopoDS_Shape>().Where(e => e.IsSame(ocSubshape)).ToArray();
if (sameShapes.Length == 1)
{
shape = sameShapes[0];
}
else if (sameShapes.Length > 1)
{
// Found more than one candidate.
// This can be the case when two subshapes are generated by using the same underlaying TShape
// The only way to diffentiate is to check the (localSpace!) location, this can be done
// using the hash code
var referenceHash = ocSubshape.HashCode(int.MaxValue);
shape = sameShapes.FirstOrDefault(e => e.HashCode(int.MaxValue) == referenceHash);
}
if (shape != null)
{
return(new SubshapeReference(type, Guid, shapes.IndexOf(shape)));
}
return(null);
}
}
