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Jeff Baumes authored
Stale node deletion is implemented by maintaining a linked list of tree nodes in vtkGeoTreeNodeCache. When a node is used, it is propagated to the front of the list. When the list reaches a certain size, a set of least-recently-used nodes are emptied of their data. BUG: Clamping bounds in the 2D projection source to eliminate issue where image matching node bounds cannot be found in certain cases, causing a "notch" on the edge of the earth.
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