Multiple Line Extensions is a power tool that uses the object-level intersection method in Visual LISP. Your drawing must have an enclosing polyline or circle, along with lines that need to be extended to meet the enclosure. This routine extends all lines to the closed boundary. It also recognizes internal boundaries. To use, load the LISP code and type Mextend. After you draw a window around the area of interest, the rest is completely automatic. Two animated GIFs included with the download file show how the function works. Great programming, Ron!
|