Hi Subeesh,
I tried it by using the code u mentioned. but I'm getting empty
bytearray.
After compressing the bytearray when i print on to the console its
giving as "EA╪BA~VA§↕A^El?í8DƒAsA?BA%aA.▬JuAzTA?
PU^,A^xA"A.♣AƒPA>→c6A`b0A'AO`XA>]Ll►§↑A¢A☼ x°$A
¥A Aº7A_<A²A«A`FzgæT¿A_A§A°AA-lA-I_↨A?7A_A»A¼A?A"8::j"
help me out..
thanks,
Anil
On Oct 31, 4:42 pm, "subeesh a" <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I have not tried this, but i hope this will work . Since flex 3 cannot
> write files to local file system directly, you have to pass the image
> as ByteArray to server and use some server-side technology to create
> the image file out of the ByteArray
>
> Any DisplayObject in Flex can be Converted to Bitmap using the
> BitmapData class . Code would be something like this
>
> private function createBitmap(source:DisplayObject):BitmapData {
> var bmd:BitmapData = new BitmapData(source.width,
> source.height);
> bmd.draw(source);
> return bmd;
>
> }
>
> Once you get the BitmapData you need to convert that into ByteArray
> .Code for that would be something like this
>
> private function ImgToByteArray( bmpImg : BitmapData ) : ByteArray
> {
> var binaryImage : ByteArray = new ByteArray();
> var bmpWidth:Number;
> var bmpHeight:Number;
> bmpWidth = bmpImg.width;
> bmpHeight = bmpImg.height;
>
> for( var i:uint=0; i< bmpWidth; i++ )
> {
> for( var j:uint=0; j<bmpHeight; j++ )
> {
> binaryImage.writeUnsignedInt( bmpImg.getPixel( i, j ) );
> }
> }
> return binaryImage;
> }
>
> You can send this ByteArray to some server side technology like PHP to
> create the image
>
> ( In Flex 4 we can directly access the local FileSystem and create
> files. But a stable SDK is not released yet . If you want you can give
> it a try with the nightly builds)
>
> Regards
> Subeeshhttp://subeesh.wordpress.com/
>
> On Fri, Oct 31, 2008 at 3:21 PM, Anil <[EMAIL PROTECTED]> wrote:
>
> > Hi,
>
> > Any solution to this problem...
> > please respond..
>
> > Thanks,
> > Anil
>
> > On Oct 14, 7:39 pm, Anil <[EMAIL PROTECTED]> wrote:
> >> Hi All,
>
> >> Here I'm pasting my sample code to export a Pie Chart.
>
> >> <?xml version="1.0"?>
> >> <!-- Simple example to demonstrate the PieChart control. -->
> >> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml";
> >> xmlns:MyComps="mx.charts.*">
>
> >> <mx:Script>
> >> <![CDATA[
>
> >> import mx.collections.ArrayCollection;
> >> import mx.core.UIComponent;
> >> import mx.graphics.codec.*;
> >> import mx.printing.*;
> >> import flash.events.*;
> >> import flash.utils.Timer;
>
> >> [Bindable]
> >> private var medalsAC:ArrayCollection = new ArrayCollection( [
> >> { Country: "USA", Gold: 35, Silver:39, Bronze: 29 },
> >> { Country: "China", Gold: 32, Silver:17, Bronze: 14 },
> >> { Country: "Russia", Gold: 27, Silver:27, Bronze: 38 } ]);
>
> >> var request:URLRequest;
>
> >> private function displayGold(data:Object, field:String,
> >> index:Number, percentValue:Number):String {
> >> var temp:String= (" " + percentValue).substr(0,6);
> >> return data.Country + ": " + '\n' + "Total Gold: " +
> >> data.Gold + '\n' + temp + "%";
> >> }
>
> >> private function export_itemClick(event:MouseEvent):void {
> >> var ba:ByteArray = getByteArrayData(chart);
> >> trace("PieChart in ByteArray: \n" + ba);
> >> request = new URLRequest("save.php");
> >> request.method = URLRequestMethod.POST;
> >> sendData();
> >> }
>
> >> private function sendData():void {
> >> // code to handle the URL variable data to the server side and
> >> helps in writing in to a file
> >> }
>
> >> private function getByteArrayData( target:UIComponent ):ByteArray {
> >> trace("Height: " + target.height + " Width: " + target.width);
> >> var bd:BitmapData = new BitmapData(target.height,
> >> target.width);
> >> bd.draw(target, new Matrix());
>
> >> var e:JPEGEncoder = new JPEGEncoder();
> >> return e.encode(bd);
> >> }
>
> >> ]]>
> >> </mx:Script>
>
> >> <mx:Panel id="panel1" title="Olympics 2004 Medals Tally Panel"
> >> height="80%" width="70%">
>
> >> <mx:PieChart id="chart" height="50%" width="50%"
> >> paddingRight="5" paddingLeft="5"
> >> showDataTips="true" dataProvider="{medalsAC}" >
>
> >> <mx:series>
> >> <mx:PieSeries labelPosition="callout" field="Gold"
> >> labelFunction="displayGold">
> >> <mx:calloutStroke>
> >> <mx:Stroke weight="0" color="0x888888"
> >> alpha="1.0"/>
> >> </mx:calloutStroke>
> >> <mx:radialStroke>
> >> <mx:Stroke weight="0" color="#FFFFFF"
> >> alpha="0.20"/>
> >> </mx:radialStroke>
> >> <mx:stroke>
> >> <mx:Stroke color="0" alpha="0.20" weight="2"/>
> >> </mx:stroke>
> >> </mx:PieSeries>
> >> </mx:series>
> >> </mx:PieChart>
>
> >> <mx:Button id="export" label="Export PieChart as Image"
> >> textAlign="center"
> >> click="export_itemClick(event);"/>
>
> >> </mx:Panel>
>
> >> </mx:Application>
>
> >> Byte array conversion is not proper. I tried to trace the bytearray
> >> printed in to the flashlog.txt. It looks like this "A¿A~A¿A"
>
> >> I tried it for many types of charts etc. But what ever bytearray it
> >> wrote into the file is same.
> >> What ever data it wrote in to the file is not fine and when I tried to
> >> open the image ..its saying "Cant read file header" ..., "Unknown
> >> fileformat".
>
> >> I am able to write some text in to file. Its working fine. but
> >> exporting the image is not working.
>
> >> Can any one tell me where am I lost.
>
> >> Help me & guide me.
>
> >> Thanks,
> >> Anil
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