Esta subrotina é útil nos casos quem que você precisa das coordenadas do retângulo que circunscreve uma determinada entidade… pra dar um “zoom” nela por exemplo… vejam como eu usei o método boundingbox do activex:

(defun get-bounding-box (ent / maxp minp)
setq ent (vlax-ename->vla-object (ename-of ent)))
(vl-catch-all-apply vla-GetBoundingBox
(list ent minp maxp)))
list (setq minp
(vla-get-insertionpoint ent)))
list (vlax-safearray->list minp)
vlax-safearray->list maxp))))

para usar: (get-bounding-box ent), onde ent é a ename, handle ou vla-object da entidade

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