| 摘要 |
A system and method for creating a datum reference frame includes selecting a first datum, wherein the first datum comprises a plurality of faces. A first definition for the selected first datum is determined. One or more second datums, based on the determined first definition, are automatically determined, wherein the second datum comprises a plurality of faces. The second datum is selected. A second definition for the selected second datum is determined. One or more third datums based on the determined second definition, wherein the third datum comprises a plurality of faces, are automatically determined. The third datum is selected.
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