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Abstracts functions to do block selection. More...
#include <filters.h>


| Public Member Functions | |
| virtual bool | Eval (const delphos::Block &block) const | 
| method that determine how the blocks are filtered.  More... | |
| virtual | ~BlockFilter () | 
| Destroys a block filter. | |
Abstracts functions to do block selection.
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 | virtual | 
method that determine how the blocks are filtered.
The method return true if the block is kept, false if it is not.
Reimplemented in delphos::AccessibilityAndRangeFilter, delphos::RangeFilter, delphos::AxisRangeFilter, and delphos::AccessibilityFilter.