ActionScript 3.0 :: Encoding Bitmaps And Byte Arrays
Jul 2, 2009
I am making a program which will ask the user to select an image, then encode it to a binary string and store in an XML file. It will then be able to 'decode' the fil and reconstruct it.
I've followed a few guides online, but I can't seem to get anything to work. My understanding is that I need to break the Bitmap into it's BitmapData components, convert that to a 'byteArray' which is saved, (or optionally encoded) then that same byteArray data is retrieved and made into a movie clip onto the stage. However, no matter what I do, I can't get it to properly recreate the bitmap once i've grabbed the data... It always throws a "end of file
In order to get the basics, i've cut my code down to the bare minimum - which is just to load the image from the local filesystem, grab it's bitmapdata, clone it and place it into a new Bitmap which is added to the stage. However, I only ever get returned a "End of file encountered" error message - which seems to indicate to me it's not properly populating the byteArray. (It certainly looks much too short when traced)
I am currently working on the 'Flash.utils.ByteArrays' and I am using writeobject() and readobject() to write and read byte Array objects. I also understand that, the objects are serialized and de-serialized as byte arrays through AMF formatting.
Since I am trying to write the object to a device(credit card reader) that doesn't supports AMF, I was wondering if there is any other way where I can still use the writeobject() and readobject() methods but can control the creation or reading through other 'byte array ' serializing and de-serializing format options if any.
I'm trying to figure out the best way to compare a single bitmap against perhaps an array of saved bitmaps to see how close of a match it may be to any one of the bitmaps stored in the array. Right now I'm running a for loop that uses the bitmapData.compare() method to try to compare to see how much of a variance there is but... to be honest I'm at a loss as to how to use the resulting data to do so. Does anyone know of any good method to accomplish what I am trying to do? Forget looking at my code it's a waste of time because simply, it's not working.
convert pdf file into byte array.and also i tried in Google also but no results yet.can u prefer how to convert pdf file into byte array and retrieve byte array into pdf file in flex application.
I am running into some trouble adding an array into another array to create a multi-dimensional array.The code appears as below:
var slideDataArray:Array = new Array(); var slideShowDataArray:Array = new Array(); slideDataArray[0] = xmlData.SlideShowParameters.SlideShowImagesDirectory;[code]........
I am looking for a means of placing the slideDataArray into a 'slot' or value of slideShowDataArray so that I can in the end pass the slideShowDataArray as a parameter to another function.As of now, the last slideDataArray appears 11 times (the loop runs 11 times) in slideShowDataArray and the way the code is written the slideDataArray is unique every iteration of the loop.
I've got a bit that loads a big chunk of xml data about products.I push product info into an array(e.g. productArray), then add that array to another array (e.g. allProductsArray)How do I sort those arrays? For instance, if I want to sort the allProductsArray based on the info in productArray[0]?Alternatively, would something other tha an array of arrays be a better route?This loader loads the same sort of info for many different clients, so the bit to sort on will change.
I'm trying to write a function where I can specify any amount of array, and the return value will be an array containing the contents of all of the specified arrays.I've done this, but it seems like a really slow and ugly way of doing it:
var ar1:Array = [1,2,3,4,5,6,7,8,9]; var ar2:Array = ['a','b','c','d','e','f','g','h']; function merge(...multi):Array[code].....
Is there an inbuilt and more efficient / nice way of achieving this? The result does not need to be in the same order as the input - completely unsorted is fine.
A little explanation: Im making a random arranging number Array. So instead of using a loop and assigning 0 to first array element, 1 to second, etc.I need to make it totally random but without repeating any numbers. To do that I made a second Array that will have the same number of children to serve as a reference.Each of them will be an Object with a property "num" , wich will be its actual number, and a property "called" wich defaults to false.Like this:
ActionScript Code: for(var i:int=0;i<vQuantity;i++){ ranArray.push( new Object() );
I've had a problem for awhile that was really odd. After some intense debugging, I realized the problem lied in setting an array equal to another array.[code] When setting one array equal to another, the values aren't copied over, but a reference to that memory is stored. So no matter which variable you change, they are both references to the same memory and thus both will reflect the changes.With other data types, this doesn't happen.I could fix it by looping through t1 and using push() to add each index from t1 into t2, but that seems a little messy.
correct syntax for pushing variables to arrays within arrays? I have searched many threads but found nothing that exactly answers my query.I have a class (Brigade) which amongst other variables contains an array (BrigadeUnits) This is the third element.. My Brigades are stored in an array called AllBrigades. I now need to fill the BrigadeUnits array with objects of my Units class.The hierarchy I want to create is as follows:
AllBrigades (array of Brigades) Brigade (object) BrigadeUnits (array within Brigade object) Unit (Object to be stored in BrigadeUnits array)
I have tried various approaches including the following, assuming that I am addressing the first Brigade in the array:
Currently writing my own AMF TcpSocketServer. Everything works good so far i can send and recieve objects and i use some serialization/deserialization code. Now i started working on the encryption code and i am not so familiar with this stuff.I work with bytes , is DES-CBC a good way to encrypt this stuff? Or are there other more performant/secure ways to send my data? Note that performance is a must :). When i call: ReadAmf3Object with the decrypter specified i get an: InvalidOperationException thrown by my ReadAmf3Object function when i read out the first byte the Amf3TypeCode isn't specified ( they range from 0 to 16 i believe (Bool, String, Int, DateTime, etc) ).I got Typecodes varying from 97 to 254?I think it has something to do with the encryption part. Since the deserializer works fine w/o the encryption. I am using the right padding/mode/key?
I used: http:[url].... as as3 encryption/decryption library. And i wrote an Async tcp server with some abuse of the threadpool ;)Anyway here some code:
C# crypter initalization code System.Security.Cryptography.DESCryptoServiceProvider crypter = new DESCryptoServiceProvider();[code]........
Determining the value of a bit in a byte? Hence at a current position?It's something with bitwise but im not entirely getting it. I know how preset a uint's value (a 32 bit's value)Just not....able to take part of a bit (say the 3rd, 4th, 5th, and 6th position of byte A into a new byte(byte B))etter example:001101000101110100101110101011101000Let's say that's a 32 bit segment.
if i am using sound/music in a flash movie and i would like to create an instance for it then play it in actionscript, how would i go about getting the size of that sound file?Here is the code i used, btw the sound file has a linkage name of 'tune'
Code: musik = new Sound(this); musik.attachSound("tune"); musik.start(); varsize = musik.getBytesTotal();
A dynamic text field is placed in the doc to show the value of varsize but when the movie loads, it shows as undefined!
Is there an easy way to get the byte length of a string in AS3? String.length works in many cases, but breaks if it encounters mulibyte unicode characters.(in this particular case, I need to know this so I can preface messages sent across a TCP socket with the message length. This is in standard netstring format e.g. "length:message,").
I've been using Flash Video Encoder for quite a while now and never had a problem encoding flash from wmv. But in the last week suddenly encoding crashes on ever attempt. At first I thought it was a change in the format of the video that was being introduced, but then I tired videos that I know that I've converted previously. They crash too. I've also tried on 3 different computers, that have all had success in the past.
I have some German content which contains an umlaut (ΓΌ). This content is being built into an XML file. I then have a flash file which uses the xml to build a coverflow. My problem is that the 'ΓΌ' character is not being displayed in the coverflow. I've made sure the xml is encoded correctly, as you can see from the snippet below:
As you can see, the umlaut is in the albumName element, but when that text displays it simply misses out the 'ΓΌ'. I've added a bunch of encoding groups to the text element in the coverflow file, as well as specifically adding the 'ΓΌ' in the 'Include these characters' element. I'm stuck for how to get this to display.
So I have recently created a Tshirt design application where a user can draw on a tshirt / add text / upload images. Though I am having a few problems. Problem #1: Using the pen tool I can only allow users to draw and reset the drawing using the graphics class, no idea how to create an eraser tool
Q1 - Is there any way to create the eraser? Problem #2: Once a user saves the shirt it is later encoded into a JPG or PNG With no way of editing the shirt in the future.
Q2 - I thought of saving the locations of the shapes / items they uploaded onto the shirt and colors and later re-creating the shirt once loaded. But ran into one problem that is I cannot save the drawing they did using the pen tool, only the location of the objects (MC's) is there any better way to creating this?
I'm just trying to find the size of a array I created. I know how to find the size of the swf and movieclips with getBytesTotal but that doesn't seem to work for arrays. anyone know of a method to find this or some built in function. I searched google and other search engines but only find the getBytesTotal command for use with MCs.
We have a big project, which include about 700 classes and based on Robotleg frameworks.at some point looks we reach some limitation of flash ide, we got this error and can't render properly.[url]...
is it possible to play RTMP stream with double byte name like japanese korean etc.? I tried to with and without escape() stream name without success like [URL] doesn't work
I'm working on a childrens game (flash as3) in which stories, poems, songs, etc are read to the child. There's a voice recording reading/singing the text, the text highlights as the words are spoken/sung. The child may toggle on and off the voice and word highlighting independantly. The child may also opt to make their own recording. Now said recording works fine. I'm able to capture it from the mic and the child may play it back no problem. The issue lies in that the client wants the child to be able to save this recording to a web server.
I thought I had the issue solved by using a URLRequest and URLLoader object. The mp3 was showing up in the specified folder on the webserver. I played it with a media player and it worked. The child could also load said file no problem. THEN, when I tried it via browser(instead of flash player) I got the dreaded sandbox error. The only way such an operation with said objects can occur in a browser environment is if it's user initiated via a dialogue window. This is children were talking about and we're not saving locally anyway.
The child is provided 3 save slots which they click on (WSprites). Which technically is user initiated, but flash has no way of knowing that. The 3 save slots hold the sounds in memory and only change when the user records or loads. When the user saves, they get sent off to php to save. Now I did try using js as a middleman, but I ended up losing my bytes in the process and my js and php are probly the weakest areas of all my programming skills.
i recently posted a question on embeding XML,i have it working however im still struggling to access individual elements of an XML document i would like to work with, below is a basic XML structure id like to acess:
