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初始化特征:: 转换<double, 2, 1>来自std::vector的变量

假设我有std::vector变量，如何初始化Eigen::Transform<double，2,1> 类型的变量？
Std::vector< double> 数据 (3);
数据 [0] = 1;
数据 [1] = 2;
数据 [2] = 3;
Eigen::

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