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First, we build a data\u2010driven FFD (dFFD) that enables users to handle locations of FFD handles from lower\u2010dimensional parameters. To prepare training data, we implement an FFD\u2010based puppet tool and recorded the user\u2010designed locations of grid handles. Second, we iteratively optimize the parameters of dFFD by using a locally optimal block matching algorithm with almost\u2010uniform sampling strategies. t\u2010Regina is effective and easy to integrate into existing drawing systems. 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