Primitive Manager

The primitive manager contains spatial data structures used to efficiently render primitives. Once a primitive is initialized, it must be added to the primitive manager before it will be rendered. For example:

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IAgStkGraphicsSceneManager
 manager = ((IAgScenario)root.CurrentScenario).SceneManager;

              IAgStkGraphicsPolylinePrimitive polyline =
 manager.Initializers.PolylinePrimitive.Initialize();

              Array positions = new object[]

              {

                   0, 0, 0,

                   0.017, 0, 0

              };


              polyline.SetCartographic("Earth", ref positions);

              manager.Primitives.Add((IAgStkGraphicsPrimitive)polyline);

Once added to the manager, primitives are rendered the next time the scene is redrawn. This will happen when the user clicks a mouse button or the animation time changes. The scene can also be redrawn explicitly:

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manager.Render(); // Redraw every
 3D scene

              manager.Scenes[0].Render(); // Redraw just one 3D scene

For best performance, add several primitives to the manager and only redraw the scene once after adding all the primitives.

When a primitive should no longer be rendered, remove it from the manager:

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manager.Primitives.Remove((IAgStkGraphicsPrimitive)polyline);