The question would be: Can I fill with a transparent color to erase the image?
----- Original Message ----- From: "Victor Bombi" <[email protected]> To: "IUP discussion list." <[email protected]> Sent: Wednesday, January 15, 2014 2:22 PM Subject: Re: [Iup-users] teselation sample >I dont understand why both functions behave differently > One is pasting in a triangle and the other duplicates and deletes outside > the triangle > (The second one could be used then to do it in place) > > function MaskTriang2(imgor,size) > local img = imgor:Duplicate() > local imcv = img:cdCreateCanvas() > imcv:Begin(cd.REGION) > imcv:Box(0,img:Width(), 0,img:Height()) > imcv:RegionCombineMode(cd.NOTINTERSECT) > EQTriangle(imcv,size,cd.FILL) > imcv:End() > > imcv:Clip(cd.CLIPREGION) > imcv:Foreground(cd.EncodeAlpha(cd.BLACK, 0)) > > imcv:Box(0,img:Width(), 0,img:Height()) > > imcv:Kill() > return img > end > > function MaskTriang(img,size) > local im2 = img:Clone() > im2:AddAlpha() > local imcv = im2:cdCreateCanvas() > EQTriangle(imcv,size,cd.CLIP) > imcv:Clip(cd.CLIPPOLYGON) > img:cdCanvasPutImageRect(imcv, 0, 0, 0, 0, 0, 0, 0, 0) > imcv:Kill() > return im2 > end > > > ------------------------------------------------------------------------------ > CenturyLink Cloud: The Leader in Enterprise Cloud Services. > Learn Why More Businesses Are Choosing CenturyLink Cloud For > Critical Workloads, Development Environments & Everything In Between. > Get a Quote or Start a Free Trial Today. > http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk > _______________________________________________ > Iup-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/iup-users ------------------------------------------------------------------------------ CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments & Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk _______________________________________________ Iup-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/iup-users
