此文章为用python ovito模块计算某一类原子的MSD
ovito.modifiers.CalculateDisplacementsModifier 基于ovito.pipline.ReferenceConfigurationModifier
ovito GUI界面 Affine mapping of simulation cell 三个选项 Off,To reference, To current分别对应 Off --> ReferenceConfigurationModifier.AffineMapping.Off To reference --> ReferenceConfigurationModifier.AffineMapping.TOReference To current --> ReferenceConfigurationModifier.AffineMapping.ToCurrent Default: ReferenceConfigurationModifier.AffineMapping.Off
即下图红框中所示:
ovito GUI 界面 Use minimum image convention对应: