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  3. Why are the coordinates of a coordinate system’s origin, created from multiple faces, different from what is shown in Selection Information Summary in Mechanical (Utility Menu=>View=>Windows=>Selection Info)?

Why are the coordinates of a coordinate system’s origin, created from multiple faces, different from what is shown in Selection Information Summary in Mechanical (Utility Menu=>View=>Windows=>Selection Info)?

Tagged: 18.2, General, mechanical, structural-mechanics
    • April 5, 2023 at 2:32 pm
      FAQFAQ
      Participant

      This difference is intended. The origin of geometry-defined coordinate systems is calculated with the following formula:origin = (sum of each selected geometry’s position) / (the number of selected geometries) The centroid of the summary in the selection information table is calculated with the following formula: centroid = (sum of each selected geometry’s position multiplied by the selected geometry’s “weight”) / (the total “weight” of the selection) where a geometry’s weight is defined as edge: length face: surface area body: volume.

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