下保存自定义影片剪辑作为图像到本地磁盘（DIY发生器） [英] Saving customized movieclip as an image to local disk (diy generator)

问题描述

dropbox.com/s/77euop1luqjreos/FINAL.fla

dropbox.com/s/77euop1luqjreos/FINAL.fla

好吧，我便放弃了这个了。我想不出任何办法挽救由用户创建的图像。它很难解释，但请看看我工作的FLA文件。基本上，它是一个DIY的发电机。唯一缺少的是一个保存功能。香港专业教育学院读的FileReference但它总是在一个文档类。我的code是时间轴。请帮助我真的很坚持。

Ok i just gave up with this already. I cant think of any way to save the image created by a user. Its hard to explain but please check out the fla file of my work. Basically its a diy generator. The only thing missing is a save function. Ive read filereference but its always in a document class. My code is in the timeline. Please help I'm really stuck.

编辑：我有一个下载按钮即现在的工作！但它不仅节省了影片剪辑的一小部分： Imgur

edit: I got a download button that is working now!! But it only saves a small part of the movieclip: Imgur

推荐答案

为了创建图像，您需要访问的影片剪辑对象的像素数据。这些数据可以通过渲染的MovieClip 到的BitmapData 对象，并使用这些数据，您可以编写自己的EN codeR将其转换为任何图像格式，你可以得到倒是像。写这样的EN codeR不是一个简单的任务，需要图像格式算法的理解，也可以使用pre-写库。您也可以下载 PNGEn codeR 和 JPGEn codeR ，这是的的as3corelib ，一个开源项目库。

In order to create images, you need to access the pixel data of the MovieClip object. The data can be obtained by rendering a MovieClip into a BitmapData object and using this data, you can write your own encoder to convert it to any image format you’d like. Writing such encoder is not a trivial task and requires understanding of the image format algorithm, or you can use pre-written libraries. You can download the PNGEncoder and JPGEncoder , which is part of as3corelib, an open source project library.

使用的 JPGEn codeR ，我们可以把的DisplayObject 到的ByteArray ，适合保存到文件中。如果使用的是 JPGEn codeR ，它会是这样的：

Using the JPGEncoder, we can convert DisplayObject into ByteArray, suitable for saving into file. If using the JPGEncoder, it’ll look like this:

import com.adobe.images.JPGEncoder;
var jpgEncoder:JPGEncoder = new JPGEncoder(quality);
//remember bitmapData here is just an example (do not try to compile this code without declare this particular variable)
var byteArray:ByteArray = jpgEncoder.encode(bitmapData);

通过在 PNGEn codeR ，它会是这样的：

With the PNGEncoder, it’ll look like this:

import com.adobe.images.PNGEncoder;
//remember bitmapData here is just an example (do not try to compile this code without declare this particular variable)
var byteArray:ByteArray = PNGEncoder.encode(bitmapData);

保存到用户的硬盘

使用的的FileReference .save（）函数，我们可以提示用户将文件保存与以下调用。

Using the FileReference.save() function, we can prompt the user to save the file with the following call.

var fileReference:FileReference=new FileReference();
//in case of JPGEncoder
fileReference.save(byteArray, ".jpg");

通过这两个结合起来，这里有一个例子，如何使用：

With the two combined, here’s an example how to use:

//remember to import
import flash.net.FileReference;
import com.adobe.images.JPGEncoder; //or import com.adobe.images.PNGEncoder;
import flash.utils.ByteArray;
import flash.display.BitmapData;

//where mc_canvas will be your MovieClip instance name
var bitmapData:BitmapData = new BitmapData(mc_canvas.width, mc_canvas.height);
bitmapData.draw(mc_canvas);  

var jpgEncoder:JPGEncoder = new JPGEncoder(quality_slider.value);
var byteArray:ByteArray = jpgEncoder.encode(bitmapData);

//if you want to use PNGEncoder 
//var byteArray:ByteArray = PNGEncoder.encode(bitmapData);

var fileReference:FileReference = new FileReference();
fileReference.save(byteArray, ".jpg");

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