Topic: Imperial to metric Calculator

[theluck19]

Does anyone have a program that calculates MM to Inches & Vice Versa.

I am working on some drawings where the architect has used both dimensions in the drawings. I tried using the Quickcalc command but it is not very effective as it is time consuming. Is a there an easier way of doing this? Thanks..

[Daniel Eiszele]

Are you after a routine that works from the command line or are you just after a stand alone calculator that operates more efficiently than quickcalc?  I can think of a few different implementations but it just depends on your usage.

[theluck19]

Standalone will be more effecient as you say.. do you know where i can get one .
Another problem with the commandline is thet it displays the output as 12.25 rather than 12'-3".

[Daniel Eiszele]

I don't know of anything off hand but I could knock something together pretty quickly.  I will look at it after I get home from work tonight.

[ronjonp]

You want something like this?

Code: [Select]

(defun c:xx (/ n)
  (and (setq n (getdist "\Enter distance: "))
       (princ (strcat "\nMM " (rtos (* n 25.4) 2 1) " Inches " (rtos (/ n 25.4) 3 1)))
  )
  (princ)
)

[theluck19]

Thanks Dan & Ron.. I was thinking more like..
c:ddd

Please enter the distance (mm) you need to convert to feet & inches:

Command line Input : 300 (mm)

Output : 1'-0" Alert as dialog box or command line, (Precision 1/4")-Rounded positively.

I wrote something similar to Ron, using initget instead of getdist but i am having trouble controlling the precision & positive rounding.

What do you think is the next step as you can clearly see that i am a toddler when it comes to lisp..

[Daniel Eiszele]

You're right, the Precision and Rounding is a bit more of an issue then I originally thought.  Especially since we don't generally have to deal with imperial measurements.  Having said that, when I said standalone, I was thinking of a windows program rather than an Acad commandline one.  Will that still work for you.  And if so how would you enter feet and inches for the conversion to millimeters?

[theluck19]

Are you aware of any freeware windows application which can do the conversion the way we require? I did download a few but, the output format is not what i want. I recall using a built in calculator with Rebarcad which was a good tool for this problem. I'll keep looking, please keep me posted if you do find a solution. Thanks..

[Atwist]

Hello theluck19,

IL think dis is watt your looking for.

http://www.sjweeks.co.uk/

My software/metric Converter V4.2

[theluck19]

Not quite im afraid, I need the output as 1'-1 3/4" not as 13.75)

[Atwist]

Oke

Try dis whan

http://www.pwr-tools.com/

Math/Fractions.........../converter

[theluck19]

Exactly what i needed.. Thanks..

[mdbdesign]

Try this one:
It is free.

http://www.katmarsoftware.com/?referrer=Uconeer24A

[jaberwok]

Inches to mm is easy.
Two macros -

* 12.7

* 25.4

Put them on buttons and use them within your drawing command.

Circle
pick centre
6 (* 12.7) [when given a 6" diameter]

Result is a 152.4 diameter circle.

[SDETERS]

Here is a program that converts all kinds of stuff