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,
>>>>>>>>>
>>>>>>>>
>>>>>>
>>>>>
>>>>>
>>>
>>
>
