The command will end automatically after the cut and fill attributes have been selected.Ī sample CAD file is included with the lisp for a better understanding of the command.ħ.Select one by one the attributes of the block to modify, starting with the attribute of progressive.Select by means of a window all the punctures of cut and fill of the section, including the text of the progressive one of the same one.To use this routine you must do the following: The selection of the objects is done by means of a window that includes all the punctures including the text of the progressive of the section. To do this, you must first select the attribute of the progressive block, this is an invisible attribute, but the list just before the selection shows it and then hide it again, this is done with the command « Attdisp«, Then the attributes of the cut and fill areas will be selected and these will be updated according to the values of the areas found. The lisp adds all the areas of the shadows that are in the layer « ShadingCut✺nd all the shading areas of the layer« ShadowFill✺nd once the selection of the slabs is finished, the attributes of the block of areas are updated. The selected shaders should be in a layer that describes the type of area to be obtained, by default the lisp will read two layer names, which are the following: « ShadingCut' Y ' ShadowFill«.

Autocad lisp dataextraction