Display icon positioning with Initial X and Y
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From: jsaiya on 28 May 2008 11:03 I'm trying to position a graphic by setting the Display icon's Positioning property to "On Screen" and putting custom variables in the Initial X and Initial Y fields. The icon contains one bitmap which is linked externally and changed during the program by loading different files. The image's actual position always winds up being different than what I set it to; the values of DisplayX and DisplayY for that icon are usually greater than what I set them to by a seemingly random amount. In any case, does anybody know of a bug in display positioning? What are people doing to work around it? - Jim Saiya
From: Steve Howard **Community Expert** - eLearning + Mobile and Devices on 28 May 2008 11:59 > I'm trying to position a graphic by setting the Display icon's Positioning > property to "On Screen" and putting custom variables in the Initial X and > Initial Y fields. The icon contains one bitmap which is linked externally > and > changed during the program by loading different files. > > The image's actual position always winds up being different than what I > set it > to; the values of DisplayX and DisplayY for that icon are usually greater > than > what I set them to by a seemingly random amount. > > In any case, does anybody know of a bug in display positioning? What are > people doing to work around it? Sure it's a random amount? Sure it's not DisplayX/2, DisplayY/2? There is a difference in the registration point for DisplayX/Y and for OnScreen positioning. Try replacing your variables with these expressions YourXvar-(DisplayX/2) YourYvar-(DisplayY/2) Steve -- Adobe Community Expert: eLearning, Mobile and Devices European eLearning Summit - EeLS Adobe-sponsored eLearning conference. http://www.elearningsummit.eu
From: Amy Blankenship on 28 May 2008 12:14 "Steve Howard **Community Expert** - eLearning + Mobile and Devices" <steve(a)NOSPAMmagnoliamultimedia.com> wrote in message news:g1jvgc$9qn$1(a)forums.macromedia.com... >> I'm trying to position a graphic by setting the Display icon's >> Positioning >> property to "On Screen" and putting custom variables in the Initial X and >> Initial Y fields. The icon contains one bitmap which is linked >> externally and >> changed during the program by loading different files. >> >> The image's actual position always winds up being different than what I >> set it >> to; the values of DisplayX and DisplayY for that icon are usually greater >> than >> what I set them to by a seemingly random amount. >> >> In any case, does anybody know of a bug in display positioning? What are >> people doing to work around it? > > > Sure it's a random amount? Sure it's not DisplayX/2, DisplayY/2? > > There is a difference in the registration point for DisplayX/Y and for > OnScreen positioning. > > Try replacing your variables with these expressions > > > YourXvar-(DisplayX/2) > YourYvar-(DisplayY/2) DisplayX is the horizontal center of the icon, DisplayY is the vertical center. Dividing it by 2 will give you an unknown number, based on where the icon is on screen. You may want consider using DisplayWidth, DisplayHeight or GetPostSize, depending on how and when you're calculating this. HTH; Amy
From: Steve Howard **Community Expert** - eLearning + Mobile and Devices on 28 May 2008 16:23 >> YourXvar-(DisplayX/2) >> YourYvar-(DisplayY/2) > > DisplayX is the horizontal center of the icon, DisplayY is the vertical > center. Dividing it by 2 will give you an unknown number, based on where > the icon is on screen. You may want consider using DisplayWidth, > DisplayHeight or GetPostSize, depending on how and when you're calculating > this. Oops - that's what I meant, and that's what I do :-$ YourXvar-(DisplayWidth/2) YourYvar-(DisplayHeight/2) Getting old again ;-) Steve -- Adobe Community Expert: eLearning, Mobile and Devices European eLearning Summit - EeLS Adobe-sponsored eLearning conference. http://www.elearningsummit.eu
From: jsaiya on 28 May 2008 18:57
[q][i]Originally posted by: [b][b]Newsgroup User[/b][/b][/i] "Steve Howard **Community Expert** - eLearning + Mobile and Devices" <steve(a)NOSPAMmagnoliamultimedia.com> wrote in message news:g1jvgc$9qn$1(a)forums.macromedia.com... >> >> The image's actual position always winds up being different than what I set it >> to; the values of DisplayX and DisplayY for that icon are usually greater than >> what I set them to by a seemingly random amount. >> > > Sure it's a random amount? Sure it's not DisplayX/2, DisplayY/2? > DisplayX is the horizontal center of the icon, ... Amy [/q] I understand that the registration point for Initial X and Initial Y are the center of the image (actually the center of the bounding box of all the images in the icon). The values I plug into the fields takes that into account. BUT, when the icon is displayed, DisplayX@"My Icon" should equal the value I gave to Initial X, whatever the number is. Right? [Q] Sure it's a random amount? Sure it's not Display[Width]/2, Display[Height]/2?[/Q] I'm sure. Take a look at this sample trace: -- W: 240, H: 180 -- L: 811, T: 235 -- X: 931, Y: 325 -- Px: 896, Py: 270 -- Dx: 35, Dy: 55 Where X and Y are DisplayX and DisplayY and Px and Py are the values I put in the Initial fields. Dx and Dy are the differences. Sometimes Dx is greater than Dy. They don't seem to have anything to do with the DisplayWidth or DisplayHeight (W and H). The differences are the same for the same image any time I run it. No one has had this problem before? I'm using AW7.02, the image files are PNG and Mode is set to Alpha. I'll see what happens when I change the mode to something else. TIA, Jim |