This free lisp is useful while working with Land Survey Drawings. After the drawing is prepared, if Z Value (Elevation) of the blocks to be changed to the elevation value represented by a text nearest to that block, this AutoLisp routine can be used. Using this free lisp you Update Z value of all the selected blocks. If drawing is in 2D (Entities without Z Value) it is always easy to edit the drawing, however this requirement of elevating blocks comes up when this drawing is further processed in software’s that handle only 3D entities.
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