Ok, I found the problem in mine for big numbers. @harbs, your function works for big numbers but not fractional, anyway, I didn't optimize mine, so, I will use its recursive pattern to recode mine, thanks.
Frédéric THOMAS > Subject: Re: Decimal to Hex conversion. > From: [email protected] > Date: Mon, 29 Sep 2014 23:15:35 +0300 > To: [email protected] > > I have TOTALLY not read this thread, but does this function do what you want? > > function toHex(d) { > var r = d % 16; > var result; > if (d-r == 0) > result = toChar(r); > else > result = toHex( (d-r)/16 ) + toChar(r); > return result; > } > function toChar(n) { > const alpha = "0123456789abcdef"; > return alpha.charAt(n); > } > > On Sep 29, 2014, at 11:03 PM, Frédéric THOMAS <[email protected]> wrote: > > > Also, it seems to work for fractional small numbers, it doesn't on big one > > because this function still rely on the toString(radix) method with on my > > windows 64 bits return a wrong result, should a bug to be filled on Adobe > > or some else first can confirm those results ? > > > > decimal (10) -> dec2hex -> toString(16) -> real > > 14159265359 -> 0x34.34BF53E2D -> 0x4BF53E4F -> 0x34BF53E4F > > 3.14159265359 -> 0x3.243F6A8885D -> 0x3.0 -> 0x3.243F6A8885A308D > > > > In between I'll try to find a way to code the correct function. > > > > Frédéric THOMAS > > > >> From: [email protected] > >> To: [email protected] > >> Subject: RE: Decimal to Hex conversion. > >> Date: Mon, 29 Sep 2014 20:34:51 +0100 > >> > >> Actually I wasn't sure of mathematical correctness of the solution I gave > >> above and I end up writing my own function for it, so, use it instead of > >> the one I gave before: > >> > >> function dec2hex(dec:Number):String { > >> const carryArr:Array = []; > >> const integerPart:int = parseInt(dec.toString(16)); > >> const s:String = dec.toString(); > >> const iterationMax:int = s.substr(s.indexOf(".") + 1).length; > >> var fractionalPart:Number = parseFloat((dec - > >> integerPart).toFixed(iterationMax)); > >> var product:Number; > >> > >> var hex:String = "0x" + integerPart.toString(); > >> > >> if (iterationMax > 0) { > >> for (var i:uint = 0; i < iterationMax; i++) { > >> product = fractionalPart * 16; > >> carryArr[carryArr.length] = product.toString(16).toUpperCase(); > >> const carry:uint = parseInt(product.toString()); > >> fractionalPart = parseFloat((product - > >> carry).toFixed(iterationMax)); > >> if (fractionalPart == 0) > >> break; > >> } > >> hex += "." + carryArr.join(""); > >> } > >> > >> return hex; > >> } > >> > >> You could probably optimize it but at least it returns the correct result. > >> > >> Frédéric THOMAS > >> > >>> From: [email protected] > >>> To: [email protected] > >>> Subject: RE: Decimal to Hex conversion. > >>> Date: Mon, 29 Sep 2014 13:24:21 +0100 > >>> > >>> And to be sure the user is allowed to type decimals only, I would add on > >>> key down listener a check for it like this: > >>> > >>> > >>> > >>> if( isNaN(Number(scaledVal.text)) ){ > >>> > >>> scaledVal.text = > >>> scaledVal.substring(0, str.length-1); > >>> > >>> } > >>> > >>> Or use a preventDefault() > >>> > >>> and to optimize a bit, on change, check the event is of type CHANGE > >>> before computing. > >>> > >>> HTH, > >>> Frédéric THOMAS > >>> > >>>> From: [email protected] > >>>> Date: Mon, 29 Sep 2014 17:42:33 +0530 > >>>> Subject: Re: Decimal to Hex conversion. > >>>> To: [email protected] > >>>> > >>>> Thanks Frederic. It Worked. > >>>> > >>>> -- > >>>> Regards > >>>> Saju Thankathurai, > >>>> > >>>> > >>>> On Mon, Sep 29, 2014 at 5:27 PM, Frédéric THOMAS > >>>> <[email protected]> > >>>> wrote: > >>>> > >>>>> > >>>>> hexVal.text ="0x" + scaledVal.text.split(".").map(function (item:*, > >>>>> index:int, array:Array):String { > >>>>> return int(item).toString(16).toUpperCase(); > >>>>> }).join("."); > >>>>> > >>>>> Frédéric THOMAS > >>>>> > >>>>>> From: [email protected] > >>>>>> To: [email protected] > >>>>>> Subject: RE: Decimal to Hex conversion. > >>>>>> Date: Mon, 29 Sep 2014 12:49:59 +0100 > >>>>>> > >>>>>> so int is the same! > >>>>>> if uint is just half of int... > >>>>>> lets say you should first read the different types but for your try use > >>>>> number > >>>>>> > >>>>>>> From: [email protected] > >>>>>>> Date: Mon, 29 Sep 2014 17:16:51 +0530 > >>>>>>> Subject: Re: Decimal to Hex conversion. > >>>>>>> To: [email protected] > >>>>>>> > >>>>>>> Hi, > >>>>>>> > >>>>>>> I tried using int, it didnt help. Below is the demo code, > >>>>>>> > >>>>>>> <?xml version="1.0" encoding="utf-8"?> > >>>>>>> <s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"; > >>>>>>> xmlns:s="library://ns.adobe.com/flex/spark" > >>>>>>> xmlns:mx="library://ns.adobe.com/flex/mx" > >>>>>>> initialize="windowedapplication1_initializeHandler(event)" > > >>>>>>> <fx:Script> > >>>>>>> <![CDATA[ > >>>>>>> import mx.events.FlexEvent; > >>>>>>> import spark.events.TextOperationEvent; > >>>>>>> protected function > >>>>> scaledVal_changeHandler(event:TextOperationEvent):void > >>>>>>> { > >>>>>>> hexVal.text = int(scaledVal.text).toString(16).toUpperCase(); > >>>>>>> } > >>>>>>> protected function hexVal_changeHandler(event:TextOperationEvent):void > >>>>>>> { > >>>>>>> var texts:String = "0x"+hexVal.text; > >>>>>>> scaledVal.text = int(texts).toString(10); > >>>>>>> } > >>>>>>> protected function > >>>>>>> windowedapplication1_initializeHandler(event:FlexEvent):void > >>>>>>> { > >>>>>>> nativeWindow.maximize(); > >>>>>>> } > >>>>>>> protected function button1_clickHandler(event:MouseEvent):void > >>>>>>> { > >>>>>>> scaledVal.text = ""; > >>>>>>> hexVal.text = ""; > >>>>>>> } > >>>>>>> ]]> > >>>>>>> </fx:Script> > >>>>>>> <fx:Declarations> > >>>>>>> <!-- Place non-visual elements (e.g., services, value objects) here > >>>>>>> --> > >>>>>>> </fx:Declarations> > >>>>>>> <s:BorderContainer width="100%" height="100%" borderVisible="true"> > >>>>>>> <s:VGroup verticalCenter="0" horizontalCenter="0"> > >>>>>>> <s:Label width="100%" color="blue" > >>>>>>> text="Demo to convert hexa to scaled value and vice-versa"/> > >>>>>>> <mx:Form width="100%" height="100%"> > >>>>>>> <mx:FormHeading label="Enter values into the textbox"/> > >>>>>>> <mx:FormItem label="Enter Scaled value"> > >>>>>>> <s:TextInput id="scaledVal" width="200" > >>>>>>> change="scaledVal_changeHandler(event)"/> > >>>>>>> </mx:FormItem> > >>>>>>> <mx:FormItem label="Enter Hexa value"> > >>>>>>> <s:TextInput id="hexVal" width="200" > >>>>> change="hexVal_changeHandler(event)"/> > >>>>>>> </mx:FormItem> > >>>>>>> </mx:Form> > >>>>>>> <s:Button label="Reset" click="button1_clickHandler(event)"/> > >>>>>>> </s:VGroup> > >>>>>>> </s:BorderContainer> > >>>>>>> </s:WindowedApplication> > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>>> -- > >>>>>>> Regards > >>>>>>> > >>>>>>> > >>>>>>> Saju Thankathurai, > >>>>>>> > >>>>>>> > >>>>>>> *"We **cannot do great things on this Earth, only small things with > >>>>> great > >>>>>>> love"* > >>>>>>> *-Mother Teresa (1910-1997)* > >>>>>>> > >>>>>>> > >>>>>>> On Mon, Sep 29, 2014 at 5:06 PM, Evyatar Ben Halevi-Arbib < > >>>>>>> [email protected]> wrote: > >>>>>>> > >>>>>>>> You convert initially using uint, so decimals are omitted. > >>>>>>>> > >>>>>>>> Regards, > >>>>>>>> Evyatar > >>>>>>>> > >>>>>>>> On Mon, Sep 29, 2014 at 2:22 PM, Saju Thankathurai < > >>>>>>>> [email protected]> > >>>>>>>> wrote: > >>>>>>>> > >>>>>>>>> Hi, > >>>>>>>>> > >>>>>>>>> How can we convert a decimal value to Hex value? > >>>>>>>>> > >>>>>>>>> I need to convert *1345.4567 *value to HEX value. I used the below > >>>>> code > >>>>>>>> to > >>>>>>>>> convert decimal values to Hex, > >>>>>>>>> > >>>>>>>>> hexVal.text = uint(scaledVal.text).toString(16).toUpperCase(); > >>>>>>>>> > >>>>>>>>> > >>>>>>>>> Below code to convert from Hex to decimal. > >>>>>>>>> var texts:String = "0x"+hexVal.text; > >>>>>>>>> scaledVal.text = uint(texts).toString(10); > >>>>>>>>> > >>>>>>>>> > >>>>>>>>> The value 1345 is converted to HEX without any issues. But after > >>>>> the > >>>>>>>>> decimal part, it is not converting. > >>>>>>>>> > >>>>>>>>> Could some one give inputs on this conversion. > >>>>>>>>> > >>>>>>>>> > >>>>>>>>> -- > >>>>>>>>> Regards > >>>>>>>>> Saju Thankathurai, > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>>> > >>>>> > >>> > >> > > >
