Display full version of the post: Draw Object (inches) in drawing with metric unit

sadiq3210
08.05.2015, 20:01
Hi.Suppose there is a layout of room created in autocad 2007 with units in "meters".Now if i have to draw a table in room that have a dimention of (3ft 2inch X 6ft 5inches),please explain step by step how to draw this table. NOTE: method without using SCALE command will be appreciated.

John Connor
08.05.2015, 20:32
Use a metric to imperial conversion method of some sort.  I think there are one or two lisp routines that might do the trick but I don't know of a specific one to recommend.  Or...find a web page that has a metric to imperial converter and keep it available during your drawing session.

philippe JOSEPH
09.05.2015, 13:58
Hello sadiq3210 ( and John ), as you have AutoCAD2010 you can set units on your files ( command UNITS ).Then if you set correctly all your files you can insert ( and not copy/paste ) any file into an other and have the  objects in the good relative scale without having to scale them.You can also work in the same file in different units: set the UNITS in feet and work in feet, set the UNITS in meters ans work in meters.I would recommand not to change often in the same file because you will necessary forgot the good unit at a moment.You are talking of 3 feet 2 inches x 6 feet 5 inches; then if you want to work with "fractionnary inches" you will have to learn about how to enter correctly these dimensions on your keeboard, take a look in you AutoCAD help ( F1 ) to do this with a search with the word : UNITS. Eventually take a look at my file FEET-METERS.dwg in the CAD/BIM Blocks library.It will explain also how to set an alternative dimensions in the DDIM command ( 1 inch = 25.4 mm , 1 mm = 0.3937.... inches ) that will be writen in parentheses after the dimension.Please tell us if this helped or not and remember that you will allways draw your file at scale 1 and only after launch a print a various scales.

sadiq3210
10.05.2015, 10:23
In autoCAD 2007, in format tab, there is units option which brings up units window. If i select feet and then draw a line 20  units long, then in meters the line of 20 units long will also be of same length, and in case if i choose mm, the line of 20 units long will also be of same length. 

John Connor
10.05.2015, 12:47
No surprise there.Use these instead.Metric to Imperial
(defun m2i (len ang /)
(strcat "@" (rtos (* len (/ 0.03937 1))) "<" (rtos ang))
)

Imperial to Metric
(defun i2m (len ang /)
(strcat "@" (rtos (* len (/ 25.4 1))) "<" (rtos ang))
)Another series of solutions can be found here....http://cadtips.cadalyst.com/curved-objects/metric-and-imperial-tools

John Connor2015-05-10 13:00:38