通过映射器和过滤器，可以让QueryPath运行定制的函数来转换或过滤QueryPath数据。

With mappers and filters, you can have QueryPath run custom functions to transform or filter QueryPath data.

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形式化定义自适应过程中的界面模式及其转换函数，并提出重构、替代、几何变换、过滤和推送等具体可视化表达形式。

Interface modes and their transition functions are defined, and the related visualization presentations styles are described, such as reconstruction, replacement, geometry transition, filter and push.

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借助于磨光函数和过滤函数，实现了离散变量和连续变量之间的相互转换。

By using the smooth function and filter function, the discrete variables and continuous variables were transformed conveniently.

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