Help adjusting this LAB value Swaps Script please.

[cbishop01]

Hello i modified this script from Trevor to display L*a*b* values.  My question is how can i get this to only display 3 numbers after the decimal point?

Right now it displays like below.  It would be easier to read if it stopped 2 or 3 numbers after the decimal.

PANTONE 2718 C

L=56.078431372549 a=3 b=-48

    // Script by Trevor to make CMYK color Swabs http://forums.adobe.com/message/4890389#4890389 
    // Altered for L*a*b* Values
    var il = app.scriptPreferences.userInteractionLevel; 
 app.scriptPreferences.userInteractionLevel = UserInteractionLevels.NEVER_INTERACT;  
 app.doScript("main()", ScriptLanguage.javascript, undefined, UndoModes.ENTIRE_SCRIPT, "Make Lab Swabs");  
 app.scriptPreferences.userInteractionLevel = il;  
    function main()  
    {  
        var swatchDoc, doc, swatchColors, l, newSwatch, newSwatchName, cv, ps, m, mtb, tb, ms, tf, ptf;  
        swatchDoc = app.activeDocument;  
 setupDoc();  
 app.activeDocument = doc;  
        swatchColors = swatchDoc.swatches.everyItem().getElements(); 
        l = swatchColors.length;  
        while (l--)  
            {  
            if (swatchColors.name != "None" && swatchColors.name != "Registration" && swatchColors.name != "Paper")  
                { 
 newSwatch = doc.colors.add ({model: swatchColors.model, space: swatchColors.space, colorValue: swatchColors.colorValue});  
 newSwatch.space = ColorSpace.LAB; 
                cv = newSwatch.colorValue;  
 newSwatchName = "L="+cv[0]+ " a="+cv[1]+ " b="+cv[2];  
 newSwatch.name = (doc.swatches.itemByName(newSwatchName).isValid) ? newSwatch.name : newSwatchName;  
 ps.insertionPoints[0].contents = "\r"+swatchColors.name+"\r"+newSwatch.name+"\r"  
 ps.insertionPoints[0].rectangles.add({geometricBounds:[0, 0, "15mm", "45mm"], fillColor: newSwatch.name /*  appliedObjectStyle: myStyle */});  
 };  
            }  
        ps.overflows ? addPages(tf): 0;  
        function setupDoc()  
            {  
                doc = app.documents.add({documentPreferences:{facingPages:0, pageOrientation: PageOrientation.PORTRAIT}});  
                m = doc.pages[0].marginPreferences;  
                mtb = doc.pages[0].bounds;  
                tb = doc.pages[0].bounds;  
 mtb[0]=mtb[2]-m.bottom;  
                ms = doc.masterSpreads[0].textFrames.add ({geometricBounds:mtb, textFramePreferences:{verticalJustification:VerticalJustification.CENTER_ALIGN}});  
 ms.parentStory.properties = ({digitsType: DigitsTypeOptions.ARABIC_DIGITS, hyphenation: 0, justification: Justification.CENTER_ALIGN, paragraphDirection: ParagraphDirectionOptions.LEFT_TO_RIGHT_DIRECTION, contents: SpecialCharacters.AUTO_PAGE_NUMBER});  
                tb[0] += m.top; tb[1]+=m.left; tb[2]-=m.bottom; tb[3]-=m.right;  
                tf = doc.pages[0].textFrames.add({geometricBounds:tb})  
                ps= tf.parentStory;  
                ps.properties = {digitsType: DigitsTypeOptions.ARABIC_DIGITS, hyphenation: 0, justification: Justification.LEFT_ALIGN, paragraphDirection: ParagraphDirectionOptions.LEFT_TO_RIGHT_DIRECTION, rightIndent: 2};  
            }  
            function addPages(ptf)  
            {  
                np = doc.pages.add();  
                ptf = np.textFrames.add({geometricBounds:tb, previousTextFrame: ptf});  
                if (ps.overflows) addPages(ptf);  
            }  
    }  

Thanks in advance.

Chris

[tpk1982]

Change line 21 to

                cv = parseInt(newSwatch.colorValue); 

or

                cv = Number(newSwatch.colorValue);   

[tpk1982]

                cv = parseFloat(newSwatch.colorValue);   

also do the same

[Laubender · Accepted solution]

Hi Kartik,

that doesn't work at all.

1. colorValue is an array of three numbers

2. Chris wants 3 digits after the decimal point

I would suggest rounding the numbers.

Line 22 could read:

newSwatchName =
    "L="  + Math.round(cv[0]*1000)/1000 +
    " a=" + Math.round(cv[1]*1000)/1000 +
    " b=" + Math.round(cv[2]*1000)/1000;

Regards,

Uwe

[tpk1982]

Hi Uwe,

Thanks for the information. Learnt a new thing

[Laubender]

Inspect line 22 of the original code.

The index numbers in brackets cv[0], cv[1] and cv[2] point to an array with the value of colorValue.

Regards,
Uwe

[cbishop01]

Thank you very much.  Works perfectly