AutoLISP Routines

This routine erases every piece of text in the drawing. Not the text you select — all of it, everywhere, in one keystroke, with no confirmation and no chance to change your mind before it happens. That is exactly what it says on the tin, and there are real jobs where it is what you want. But it is worth being blunt about the behaviour up front, because the command is … [Read more...] about DELTEXT LISP: Erase All Text in an AutoCAD Drawing

This erases every piece of multiline text in the drawing. One command, no selection step, no confirmation. It is the companion to the single-line text stripper on this site, and between them they cover both kinds of text AutoCAD draws. That pairing is the point — neither one alone will clear a modern drawing. Why two routines and not one AutoCAD has two text objects … [Read more...] about DELMTEXT LISP: Erase All Mtext in an AutoCAD Drawing

This erases every leader in the drawing in one keystroke. No selection, no confirmation — you type the command and they are gone. It is one of a set of four single-purpose strippers on this site, alongside the ones for text, mtext and dimensions. All four work the same way and all four have the same lack of a safety net. It will miss most leaders on a modern … [Read more...] about DELLEAD LISP: Erase All Leaders in an AutoCAD Drawing

Purging a layer only works if the layer is empty, and finding the last few objects sitting on a layer you want rid of can take longer than the rest of the cleanup put together. They are frozen, or off, or in a layout you forgot about, or inside a block. Delete Layer skips the hunt. Point at any object on the layer you want gone, and it erases every object on that layer and … [Read more...] about Delete Layer LISP: Erase and Purge a Layer in AutoCAD

This erases every dimension in the drawing in one command. No selection, no confirmation, no undo prompt — you type it and the drawing is bare. Of the four strippers on this site — the others handle text, mtext and leaders — this is the one to be most careful with, for a reason covered below. It catches every kind of dimension Unlike its sibling that … [Read more...] about DELDIM LISP: Erase All Dimensions in an AutoCAD Drawing

This stamps the drawing with the date, the time and the drawing's file name. It is the small piece of housekeeping that tells you which printout on the desk is the current one — the thing you wish had been on the drawing the moment you find two versions of it. It is by Watson Kilbourne, copyright 1991, and the file's own name marks it as tip number 667 from a magazine … [Read more...] about DDTS LISP: Date and Time Stamp an AutoCAD Drawing