This free lisp is useful while working with Land Survey Drawings. One example for application of this lisp is in Earthwork Projects. If we want to find out the difference between initial and final levels in each grid point, this lisp can be used. If a contour map of differences of elevations has to be prepared, first find the difference of levels in each grid point using this lisp and then generate contours based on these elevation values which indicate the differences in overlapping text.
Download Compiled Lisp File:
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