I see how to set an Xfermode on a Paint, but how do I figure a circle into the picture (the shape in my example to create the mask out of) ?
On Aug 18, 3:44 pm, Romain Guy <romain...@google.com> wrote: > drawMesh() is a rather curious way to do it :) > > Anyway, you can easily do masking using the various PorterDuff transfer modes. > > On Tue, Aug 18, 2009 at 2:33 PM, Jason > > > > Proctor<jason.android.li...@gmail.com> wrote: > > > you can do this with the Canvas.drawMesh() thing, but i doubt it's > > the best way to do it. > > > you might be able to implement a custom MaskFilter? > > >>I'm trying to figure out how to draw a bitmap to the canvas in such a > >>way that only part of it is actually drawn. The part that would be > >>drawn corresponds to pixels of the bitmap that "match up" with pixels > >>of some other shape. > > >>Photoshop and Flash both have masks like this. > > >>Specifically, I have rectangular bitmaps that I want to draw as > >>circles. I don't want the corners of the bitmaps to be drawn. The user > >>of the application would then see images appearing as circular images. > >>This would be pretty simple using Flash, but searching "Mask" in the > >>Android API only gives code that modifies each pixel (like a GIMP or > >>Photoshop "filter" would). Or at least that's what it appears to me. > > >>How can I apply a circular "cookie-cutter" to a rectangular bitmap so > >>that the corners don't show up? Specific solutions to this problem and > >>general "mask" type solutions are both desired. > > >>Thank you. > > > -- > > jason.software.particle > > -- > Romain Guy > Android framework engineer > romain...@android.com > > Note: please don't send private questions to me, as I don't have time > to provide private support. All such questions should be posted on > public forums, where I and others can see and answer them --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
