LoopCAD

LoopCAD is a set of commands for AutoCAD to assist drawing a looped PEX fire sprinkler system.

Commands

• HEAD
• PIPE
• TEE
• DOMESTIC-TEE
• ELEVATION-BOX
• FLOOR-TAG
• RISER
• JOB-DATA

How to Install

• Click the AutoCAD logo button (farthest upper left)
• Click Options
• Click Files tab
• File Support Search Path
• Add LoopCAD folder, ex: C:\LoopCAD
• Add blocks folder, ex: C:\LoopCAD\Blocks

AutoCAD Auto Start Help

(https://knowledge.autodesk.com/support/autocad/learn-explore/caas/sfdcarticles/sfdcarticles/Automatically-load-AutoLISP-routines.html)

AutoCAD DXF Reference

[https://images.autodesk.com/adsk/files/autocad_2012_pdf_dxf-reference_enu.pdf]

Handy LISP Functions for the Future

(vla-startundomark (setq doc (vla-get-activedocument (vlax-get-acad-object)))) (vla-endundomark doc)

OSMODE

• 0 NONe
• 1 ENDpoint
• 2 MIDpoint
• 4 CENter
• 8 NODe
• 16 QUAdrant
• 32 INTersection
• 64 INSertion
• 128 PERpendicular
• 256 TANgent
• 512 NEArest
• 1024 Geometric CEnter
• 2048 APParent Intersection
• 4096 EXTension
• 8192 PARallel
• 16384 Suppresses the current running object snaps