Hmm...a couple of things...
1) try passing an identity matrix to the draw() function. I don't think
it will make a difference...passing null should be the same thing...but
it's worth a try.
2) I didn't realize your container was a sprite. You can ditch the
tempUI and just attach the bitmap to the sprite directly. Probably
won't help, but reducing complexity is good for reducing bugs.
3) I've had some funny behavior trying to draw() a component that's
masked into a bitmap. Your component might have a mask applied to it
somewhere in its parent hierarchy, which could be causing problems.
4) rather than draw()ing the chart into the bitmap, try just filling the
bitmap with a color and printing that. See if that shows up. If it
does, it's a problem with getting the bits into the bitmap. If it
doesn't, it's a problem with printing a bitmap in general.
5) you probably already have figured out some other solution, but
there's a software printer called FinePrint that comes in very handy
when writing print code. Wastes much less paper ;)
Ely.
-----Original Message-----
From: Jonathan Miranda [mailto:[EMAIL PROTECTED]
Sent: Friday, November 03, 2006 1:23 PM
To: Ely Greenfield
Cc: [email protected]
Subject: Re: FilteredLineSeries and Printing - ChartMan Ely, we need
you!
Alright, first round at printing....and after about 30 blank pages, I
can't figure it out. Just doing an addChild to a sprite with the chart
itself works fine. Creating the Bitmap/UI component like you said works
fine - but printing it shows up as blank. Here's a real easy example you
can use to see what I'm doing: if you uncomment the
sprite.addChild(tempUI) and do addChild(myLineChart), it works fine.
<?xml version="1.0" encoding="utf-8"?>
<mx:Application layout="absolute" verticalGap="100"
creationComplete="initApp()"
xmlns:mx="http://www.adobe.com/2006/mxml";
>
<mx:Script>
<![CDATA[
import mx.core.UIComponent;
import mx.collections.ArrayCollection;
import mx.charts.series.LineSeries;
private function initApp():void {
addLineSeries();
}
private function printChart():void {
var myBMD
:BitmapData = new
BitmapData(myLineChart.width,myLineChart.height,true);
myBMD.draw(myLineChart);
var image :Bitmap
= new Bitmap(myBMD);
var tempUI
:UIComponent = new UIComponent();
tempUI.addChild(image);
tempUI.x = 0;
tempUI.y = 0;
tempUI.cacheAsBitmap = true;
var sheet1 :Sprite
= new Sprite();
sheet1.addChild(tempUI);
//To see it print, uncomment this and
REMOVE PrintJobOptions
//sheet1.addChild(myLineChart);
var pj
:PrintJob = new PrintJob();
var pagesToPrint :uint
= 0;
var options:PrintJobOptions
= new PrintJobOptions();
options.printAsBitmap = true;
if(pj.start()) {
sheet1.height = pj.pageHeight / 2;
sheet1.width = pj.pageWidth;
try {
pj.addPage(sheet1,null,options);
pagesToPrint++;
}
catch(e:Error) {
}
if(pagesToPrint > 0) {
pj.send();
}
}
// */
}
private function addLineSeries():void {
var mySeries:Array = new Array();
var newLineSeries:LineSeries = new
LineSeries();
newLineSeries.filterData = true;
newLineSeries.interpolateValues = true;
newLineSeries.yField = "amount";
newLineSeries.form = "curve";
mySeries.push(newLineSeries);
myLineChart.series = mySeries;
}
private var __alteredData :
ArrayCollection = new
ArrayCollection([{name:1,amount:"100"},
{name:2,amount:"200"},
{name:3,amount:"0"},
{name:4,amount:"50"},
{name:5,amount:"0"},
{name:6,amount:"150"},
{name:7,amount:"200"}]);
]]>
</mx:Script>
<mx:Button x="0" y="0" label="Print"
click="printChart()"/>
<mx:LineChart x="0" y="20" id="myLineChart"
dataProvider="{__alteredData}" width="100%" height="100%"
showDataTips="true">
<mx:horizontalAxis>
<mx:CategoryAxis
dataProvider="{__alteredData}" categoryField="name"/>
</mx:horizontalAxis>
<mx:verticalAxis>
<mx:LinearAxis maximum="200"/>
</mx:verticalAxis>
</mx:LineChart>
</mx:Application>
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