Yes, that seems to be the issue, since I can manually capture the image with a button click. I don't know how to listen to the drawing event completion, though. Does anyone have any ideas about how to draw after it is completely redrawn?
--- In [email protected], "Jim Hayes" <[EMAIL PROTECTED]> wrote: > > > I'd suspect that maybe you're calling captureImg() immediately after setting > the data/drawing the elements in your code? > If so, it may not actually be rendered to the components graphics when the > snapshot is taken. > Just a guess, but it smells a bit like a timing problem to me (I've made too > many of the same, myself). > I'm afraid I can't remember offhand the component event when the screen is > actually drawn, but a crude approach might be to call captureImg via callLater() and see if it works. > (If I'm not completley wrong, that is). > I confess I sometimes just add a temporary button to call my fn when I think > I've made a similar kind of error (which normally confirms it). > > > > -----Original Message----- > From: [email protected] on behalf of netdeep > Sent: Wed 12/03/2008 19:52 > To: [email protected] > Subject: [flexcoders] captureImage not drawing fresh images > > I'm having a problem creating a png snapshot of a chart I'm drawing. I can > use the > ImageSnapshot captureImage method but it only draws the elements added during > the > creation of the component and if I later add data from messaging or with > actionscript > (addChild), it only draws the original elements and not the new data. Here > is my method: > > private function captureImg(comp:UIComponent):void { > var imageSnap:ImageSnapshot = > ImageSnapshot.captureImage(dynaChart); > var imageByteArray:ByteArray = imageSnap.data as ByteArray; > imgSave.saveImage(imageByteArray); > } > > I also have this line in my init() method: ImageSnapshot.defaultEncoder = > PNGEncoder; > > But I don't even know if I need that for sure. > > I then send it to a java servlet to write it to a file. As I said, it works > but only writes the visual > components added during initialization of the application. So I am just > getting a blank chart. > > > > ______________________________________________________________________ > This communication is from Primal Pictures Ltd., a company registered in > England and Wales with registration No. 02622298 and registered office: 4th Floor, Tennyson House, 159-165 Great Portland Street, London, W1W 5PA, UK. VAT registration No. 648874577. > > This e-mail is confidential and may be privileged. It may be read, copied and > used only by the intended recipient. If you have received it in error, please contact the sender immediately by return e-mail or by telephoning +44(0)20 7637 1010. Please then delete the e-mail and do not disclose its contents to any person. > This email has been scanned for Primal Pictures by the MessageLabs Email > Security System. > ______________________________________________________________________ >
