Decimal value to fraction

[selvam214]

Hi,

How to change the decimal values (inches) to fraction method, samples & screenshot here (left is tool output, right is needed method). The values need to change pica format also (Para Indent: 1p2), kindly guide on this.

Trim: 4.1875” x 6.75”                      ==>       Trim: 4 3/16" x 6 3/4"

Para Indent: 1.16666666666667    ==>       Para Indent: 1p2

Sample code here:

var width = app.activeDocument.documentPreferences.pageWidth;

var height = app.activeDocument.documentPreferences.pageHeight;

var myTrim = "Trim: "+width+"\" x "+height+"\"\r";

//struggle to convert decimal to fraction

[Peter Kahrel]

The second item in the list produced by googling "convert decimal inches to fraction" is Decimal Inch to Usable Fractions Converter. The script is on the page (press Ctrl+U in FireFox).

[selvam214]

Hi Kahrel,

Thanks for this link, i'll check and get back with the result.

selva

[Marc Autret · Accepted solution]

Hi selva,

Try this:

var toFrac2 = function(/*str|num>0*/x,/*4|8|16|32|64...*/precision,  p,r)
{
    precision || (precision=64);
    x += '';

    if( -1 == (p=x.indexOf('.')) ) return x||'0';

    r = x.substr(1+p).replace(/0+$/,'');
    x = x.substr(0,p);

    r = Math.round(precision*parseInt(r,10)/Number('1e'+r.length));

    if( !r ) return x||'0';

    x = (+x) ? (x+' ') : '';

    while( !(1&r) ){ r>>>=1; precision>>>=1; }

    return x + r + '/' + precision;
};

alert( toFrac2(1.5) );         // =>  1 1/2
alert( toFrac2(".025") );      // =>  1/32
alert( toFrac2("3.426897") );  // =>  3 27/64
alert( toFrac2(3.426897) );    // =>  3 27/64
alert( toFrac2(4.1875) );      // =>  4 3/16
alert( toFrac2(6.75) );        // =>  6 3/4
alert( toFrac2(5.00001) );     // =>  5

@+

Marc

[selvam214]

Hi Marc,

Thank you so much for this.

Selva