Thanks all for directing me into a different approach! greetings,
William Op wo 11 nov. 2020 om 19:19 schreef Richard Gaskin via use-livecode < use-livecode@lists.runrev.com>: > Using the backgroundPattern seems intuitive, but read the fine print: > image dimensions have very specific requirements, and not heeding those > can yield unpredictable results. > > Earlier this year I had a project that used backgroundPattern as a way > to use the graphic shape to mask an image. It worked well in most > circumstances, with a satisfying range of images sizes - until it didn't. > > We eventually found some images that would render at a fraction of > actual size, tiling across. > > I had to ditch it and find another approach, which led to the thread > here a few months ago about keyhole effect. > > The result of that is you can use a graphic placed on top of an image as > a mark, with the graphic's backgroundColor set to black and the ink set > to blendDstIn. > > That combo will give you a lot of flexibility for centering and even > resizing your masking graphic over the image. > > -- > Richard Gaskin > Fourth World Systems > Software Design and Development for the Desktop, Mobile, and the Web > ____________________________________________________________________ > ambassa...@fourthworld.com http://www.FourthWorld.com > > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your > subscription preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode > _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode