Question

scroll image behind a mask

Asked by: aidan09

Hi

I'd like to scroll an image within a masked area, using an image larger than the masked area, to allow the user some interaction in viewing a gallery.

the image should be scrollable using the mouse position to show more of the image.

any ideas?
thanks
aidan

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Asked On
2005-10-10 at 06:14:15ID21589507
Tags

scroll

,

image

Topic

Adobe Flash

Participating Experts
2
Points
500
Comments
12

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Answers

 

by: dutchfoxerPosted on 2005-10-10 at 10:00:55ID: 15053604

Not really sure what you mean. But lets try a few links and you can decide if there is something usefull there. Otherwise give me more info based on these examples:

This one shows how a mask can be put on top of an image and then Move the mask:
http://www.kirupa.com/developer/flash5/draggingmask.htm

This one shows you how to create masks using Actionscript (is actually easy: _root.mymovieclip.setMask(_root.mymask); )
http://www.internetcross.com/display/4.php


And I found the following Actionscript on this Experts website:

_root.createEmptyMovieClip("container", 0);
container.createEmptyMovieClip("nested", 0);
container.nested.loadMovie("image.jpg");

_root.createEmptyMovieClip ("rectangularclip", 1234);

drawRectangle(rectangularclip,0,0,200,150);

function drawRectangle(mc,mX,mY,maskWidth,maskHeight) {
     mc.beginFill (0x000000, 100);
     mc.moveTo (mX, mY);
     mc.lineTo (maskWidth, mY);
     mc.lineTo (maskWidth, maskHeight);
     mc.lineTo (mX, maskHeight);
     mc.lineTo (mX, mY);
     mc.endFill();
}
container.setMask(rectangularclip);


Any of this helpfull?

 

by: dutchfoxerPosted on 2005-10-10 at 10:13:22ID: 15053699


In addition. You want the image to move based on the mouse position? Like if the mouse if far to the left, the image will move fast.... if mouse is in center, the image is almost still... correct?

Bad tutorial here, but describing the principle:
http://www.internetcross.com/display/9.php


Another example of a slider:
http://www.flashkit.com/movies/Applications/Content_-ValueAme-10560/index.php

Or slightly different:
http://www.flashkit.com/movies/Applications/A_Much_B-ValueAme-10551/index.php

 

by: BillystyxPosted on 2005-10-10 at 13:00:20ID: 15055088

Or if you are looking for some zoom panner tool, there is one I made here

http://www.billystyx.co.uk/zoomV5.html

or one someone else made here:

http://www.zoomify.com/

both allow some interaction with the picture

billystyx

 

by: aidan09Posted on 2005-10-11 at 04:28:06ID: 15059178

thanks for that
not quite what i was thinking, so went on a web prowl and found

http://www.f1play.com/main/index.html

conveniently, it's the F1 babes gallery that illustrates almost perfectly. the masked image moves only thru the vertical, but i think it's an even better way to work it.

any ideas?
aidan

 

by: dutchfoxerPosted on 2005-10-11 at 06:24:37ID: 15060066

Oke 2 downloadable FLA's with your effect.
http://www.flashkit.com/movies/Scripting/Scrolling/horizont-matt_rob-6157/index.php
http://www.flashkit.com/movies/Scripting/Scrolling/vertical-zork-6162/index.php    (vertical as you required, right?)

The principle is that the speed of the scrolling (and direction if you want) is based on your mouse-position in relation to a Point in your movie. Say your point is on x=50 and y=50. Your mouse is on x=110 and y=50. So the speed of the scroll could be:
speed = mouse._x - point._x  // is 60

You would only use the X position for scrolling left / right. And the Y position for scrolling up / down only. Use both for scrolling in all directions off course.

 

by: aidan09Posted on 2005-11-11 at 05:37:09ID: 15273305

I'm looking for a horizontal ideally dutch.

imagine looking out at a view from a window - as u move yr cursor to the rite, so you see more on the rite side (i would assume that the image moves thru the masked area) - however, as you move your cursor off the masked area, the masked image eases to a stop.

make sense?  that's what i'm trying to achieve.

thanks for your help.
aidan

 

by: aidan09Posted on 2005-11-11 at 06:17:16ID: 15273578

I found this - which is perfect!

http://www.sephiroth.it/file_detail.php?id=101

problem is that I can't seem to get it to work (like it seems everyone else that downloaded it)

any ideas?
thanks
aidan

 

by: dutchfoxerPosted on 2005-11-11 at 16:17:35ID: 15277932

If you want horizontal and mask.... take this example FLA (http://www.flashkit.com/movies/Scripting/Scrolling/vertical-zork-6162/index.php), studie it and change the Y-pos values with X-pos values for it to go horizontal.

The example from Sephiroth does not react to the mouse-position whatsoever. It just has photo's glued together going to the left in a circle. This means you have something like this:
onKeyframe (
panoramic._x --;
if (panoramic._x <= -500) {
   panoramic._x = 0;
}
)

aidan09, sorry but I cannot provide you with a complete and final solution here on this website unless we find something on the internet that is 100% what you want. I can only point out some ideas. If you have a Flash-movie in which you found a problem, then we have your movie.fla we can look at / studie.... and find out whats wrong.

Found another tool: http://www.flashloaded.com/360panviewer.php
Thats the thing you want? There is no mask involved though.

And the same from Flashkit again:
http://www.flashkit.com/movies/3D/3D_panor-Richard_-9633/index.php

http://www.flashkit.com/movies/Animations/Banners/UpNorth-Chuck_Ha-2427/index.php

The next one is nice because objects that are far will move slower creating a depth effect:
http://www.flashkit.com/movies/3D/Effects/OceanSca-DangerAh-1144/index.php

And finally a 360 panoramic with flash tutorial:
http://www.flashkit.com/tutorials/Actionscripting/Basic/Creating-Flash_Ju-76/index.php

Hope I had something of your liking there!?  :)

 

by: aidan09Posted on 2005-11-13 at 14:34:56ID: 15284692

Hi

http://www.flashkit.com/movies/Animations/Banners/UpNorth-Chuck_Ha-2427/index.php is exactly what i'm after....well, almost!

I'd ideally like it to ease to a stop as it reaches the edge of the picture, instead of looping thru like a 360.

any ideas how i could change it to do this?

thanks very much for the effort so far!
aidan

 

by: dutchfoxerPosted on 2005-11-13 at 17:45:16ID: 15285253

You dont want a loop / 360. Then this "UpNorth movie" is not a good starting point, because it is duplicating the image to create the continues looping effect. If you want it to stop on the edge, then the duplication seems unrequired.

So what you want is the mouse-over effect of the "UpNorth movie" and the "easing" effect with actionscript. There is a tutorial on this easing effect here (many options):
http://www.robertpenner.com/easing/

But I noticed you are familiar with the easing effect looking at a previous question, maybe some can help you with this too?
http://www.experts-exchange.com/Web/WebDevSoftware/Flash/Q_21293878.html

Here a different type of slider, but helpfull if you look at the actionscript:
http://flash-creations.com/notes/actionscript_easingslider.php


There is, I think, no ready to go Fla-file out there for you to use by just inserting your own image. You will need to combine at least 2 Fla files from above (the North and the Robert Penner one).

20120131-EE-VQP-002

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