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Show form values in metric or imperial

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Submitted on: 5/21/2003 12:01:53 PM
By: Simon Goodwin  
Level: Intermediate
User Rating: Unrated
Compatibility:JavaScript

Users have accessed this code 686 times.
 

(About the author)
 
     Display a form's values in either metric or inch format. As this was developed for an online CADCAM application the precision is fairly high, 3 decimal places for the metric format and 5 decimal places for the imperial.
 
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Terms of Agreement:   
By using this code, you agree to the following terms...   
1) You may use this code in your own programs (and may compile it into a program and distribute it in compiled format for languages that allow it) freely and with no charge.   
2) You MAY NOT redistribute this code (for example to a web site) without written permission from the original author. Failure to do so is a violation of copyright laws.   
3) You may link to this code from another website, but ONLY if it is not wrapped in a frame. 
4) You will abide by any additional copyright restrictions which the author may have placed in the code or code's description.

//**************************************
//     
// Name: Show form values in metric or i
//     mperial
// Description:Display a form's values i
//     n either metric or inch format. As this 
//     was developed for an online CADCAM appli
//     cation the precision is fairly high, 3 d
//     ecimal places for the metric format and 
//     5 decimal places for the imperial.
// By: Simon Goodwin
//
// Inputs:transpose('metric'||'imperial'
//     )
//
// Assumes:The transpose() function will
//     act upon any text or select inputs that 
//     are present in forms[0].
Checkboxs are assumed to be boolean and are ignored.
//
// Side Effects:Only tested on IE5+
//
//This code is copyrighted and has// limited warranties.Please see http://
//     www.Planet-Source-Code.com/vb/scripts/Sh
//     owCode.asp?txtCodeId=3596&lngWId;=2//for details.//**************************************
//     

function round2(x,places)
    {
    var p = Math.pow(10,places)
    var n=new Number(Math.round(x*p)/p);
    return n.toFixed(places);
}

function transpose(scale) { if(scale==document.forms[0].current.value) { return; }
else { // hidden form element used to keep curr // ent format id document.forms[0].current.value = scale; }
if(scale.indexOf("imperial")!=-1) { document.title="Machining Engine Parameters [Imperial]"; for(var i=0;i < document.forms[0].elements.length;i++) { switch(document.forms[0].elements[i].type) { case "text": document.forms[0].elements[i].value = round2(parseFloat(document.forms[0].elements[i].value / 25.4),5); break; case "select-one": for(var j = 0;j < document.forms[0].elements[i].options.length;j++) { document.forms[0].elements[i].options[j].text = round2(parseFloat(document.forms[0].elements[i].options[j].text / 25.4),5); document.forms[0].elements[i].options[j].value = round2(parseFloat(document.forms[0].elements[i].options[j].value / 25.4),5); } break; } }
}
else { document.title="Machining Engine Parameters [Metric]"; for(var i=0;i < document.forms[0].elements.length;i++) { switch(document.forms[0].elements[i].type) { case "text": document.forms[0].elements[i].value = round2(parseFloat(document.forms[0].elements[i].value * 25.4),3); break; case "select-one": for(var j = 0;j < document.forms[0].elements[i].options.length;j++) { document.forms[0].elements[i].options[j].text = round2(parseFloat(document.forms[0].elements[i].options[j].text * 25.4),3); document.forms[0].elements[i].options[j].value = round2(parseFloat(document.forms[0].elements[i].options[j].value * 25.4),3); } break; } }
}
}
// <!-- HTML --> // <Inpu[t] onClick="transpose('metric')"> <!-- ADD your controls here -->


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