在教程二里有这么一段解释,但看得不是很明白.VTK uses a command/observer design pattern. That is, observers watch for
particular events that any vtkObject (or subclass) may invoke on
itself. For example, the vtkRenderer invokes a "StartEvent" as it begins
to render. Here we add an observer that invokes a command when this event
is observed.
particular events that any vtkObject (or subclass) may invoke on
itself. For example, the vtkRenderer invokes a "StartEvent" as it begins
to render. Here we add an observer that invokes a command when this event
is observed.
解决方案 »
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