BIM model data compressing and restoring method and device

摘要: The invention discloses a BIM model data compressing and restoring method device, belongs to the technical field of modeling. includes steps that all components are acquired, given numbers, wherein same numbers; according corresponding geometric information is compressed stored form component number dictionary, one copy regarding non-geometric vector quantity numbers list. According compression method, when stored, only number, in dictionary avoid repeated storage thus amount greatly reduced.