AutoCAD is a function called GROUP used to group a set of objects to be managed as a selection. In my book Vol.1 AutoCAD 2010 2D graphic design on page 124 and 125 can read the meaning of Groups , do an exercise and see a movie.
The main objective of this post is to explain how to solve a problem related to the presence of groups in a drawing and delete them without affecting the graphic entities. Sometimes you open a DWG file that contains hundreds of objects in groups. Using the command GROUP we remove the group from objects, one at a time. If these groups are hundreds, the system will be used is to load a Lisp function ( CLICK HERE to download rimgrup.lsp ) providing in a single step to eliminate the groups without damaging the graphic entities. You could also use the command EXPLODE, but in this case in addition to eliminating groups explode all graphical entities contained in the group.
In the following video you can see the usefulness of the function lisp rimgrup.lsp for the disposal of groups applied to a map that contains more than 1000 groups, where each group consists of a number of cadastral maps and the contour lot.
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