:-) thanks... however the problem with the invert function is that it does not preserve the transparency. Which is what I am trying to invert ( I should have been more specific ) . So I am trying to make all transparent pixels non-transparent. And vice-versa... will keep looking at paletMap/threshold as it looks like a good solution.
Regards Karim -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Elia Morling Sent: 28 February 2008 16:08 To: Flash Coders List Subject: Re: [Flashcoders] bitMapData - function optimization See this page and the comments below it. There is one about how to invert with the paletteMap function. http://livedocs.adobe.com/flash/8/main/wwhelp/wwhimpl/common/html/wwhelp.htm ?context=LiveDocs_Parts&file=00001962.html Elia ----- Original Message ----- From: "EECOLOR" <[EMAIL PROTECTED]> To: "Flash Coders List" <flashcoders@chattyfig.figleaf.com> Sent: Thursday, February 28, 2008 3:47 PM Subject: Re: [Flashcoders] bitMapData - function optimization > You could use the paletMap function or the threshold function of the > bitmapData object. Check the documentation for details. > > > Greetz Erik > > > On 2/28/08, Karim Beyrouti <[EMAIL PROTECTED]> wrote: >> >> Hello Hello, >> >> Just wondering if anyone has any tips or ideas on optimizing this >> function, >> as its really slow.. Basically, it creates an inverted alpha mask from a >> bitmap by going through every pixel in the bit map. >> >> Here is the function: >> >> <code> >> >> private function createInvertedMask() { >> >> var w:Number = mask_bitmap.width; >> var h:Number = mask_bitmap.height; >> >> var r:Number = 0; >> var c:Number = 0; >> var v:Number; >> >> for ( r = 0 ; r < w ; r++ ) { >> >> for ( c = 0 ; c < h ; c++ ) { >> >> v = mask_bitmap.getPixel32( r, c ); >> >> if ( v == 0 ) { >> >> mask_bitmap.setPixel32( r, c , >> 0xFF000000 ); >> >> } else { >> >> mask_bitmap.setPixel32( r, c , >> 0x00000000 ); >> >> } >> } >> } >> >> } >> >> </code> >> > _______________________________________________ > Flashcoders mailing list > Flashcoders@chattyfig.figleaf.com > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders _______________________________________________ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.21.1/1302 - Release Date: 27/02/2008 16:34 _______________________________________________ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
