AutoLISP Routines

WHEREUSED answers the question PURGE never will: why can I not get rid of this? You try to purge a layer, a text style, a linetype or a block, AutoCAD refuses, and nothing on screen appears to be using it. This finds what is, and tells you exactly where. What WhereUsed does Every block definition in the drawing, model space and every paper space layout included … [Read more...] about WHEREUSED LISP: Find What Is Blocking a Purge

WELDMARK draws complete welding symbols — leader, arrowhead, reference line, weld symbol, size and pitch text, optional backing / weld-all-around / field flags, and up to three lines of tail notes — as native AutoCAD geometry. What WeldMark does Nothing is inserted as a block. Every symbol is drawn from lines, arcs, polylines and solids at the moment … [Read more...] about WELDMARK LISP: Weld Symbols to AWS A2.4 in AutoCAD

A complete wall system: draw a run of wall as any number of parallel lines from a named wall type, with corners cleaned automatically, then cut openings into it for doors, windows and relites. What WallRun does WALLRUN     draw a run of wall, closing back on itself if you wantWALLTYPE    list, load and create wall … [Read more...] about WALLRUN LISP: Multi-Line Walls With Doors and Windows

WALLSECTION draws a complete exterior wall section in one command: strip footing, foundation wall, basement slab, sill plate, floor framing, stud wall with plates and finishes, and the eave with rafter, fascia and soffit — with concrete hatching and batt insulation. It is the drawing every set of house plans needs and nobody enjoys redrawing. What WallSection … [Read more...] about WALLSECTION LISP: Exterior Wall Section, Footing to Eave

Two walls drawn as pairs of parallel lines cross each other, and you are left with a little box of overlapping segments in the middle. The same happens with ducts, pipes, kerbs and roads. Window the mess and WALLCLEAN clears it: a crossing becomes a clean cross, a junction becomes a clean tee, and nothing else is touched. What WallClean does The rule it works to. … [Read more...] about WALLCLEAN LISP: Clean Up Where Double Lines Cross

VIEWLABEL places the title under a drawn view — VIEW A-A, SECTION B-B, DETAIL C — with the pair of rules beneath it and an optional scale note. What ViewLabel does It is a small job done many times per sheet, and doing it by hand is how sheets end up with titles at three different heights and rules of four different lengths. How to use … [Read more...] about VIEWLABEL LISP: View, Section and Detail Titles