Hi Quan, That's true. Having 3D objects as linear or free forms will facilitate the calculation of the formwork area. However, in my case, columns are modeled as structural elements. Unlike free and linear forms, structural elements can have only length, cross-section area, and volume as usable quantities. Thus the user field components are affected by the way the elements are modeled. Thanks for the provided script; it can be used but the result is not 100% accurate. Thanks and my best regards,
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