It doesn’t seem to matter that the triangle s,P,(x) isn’t right angled. It is only the difference between the angles that’s needed.

var a = 40;
var r = 90;
var s = 20;
var t = 180-(a+r+s);
var N = 40;
var g = 180-(a+t);
var h = 30;
for (i=0; i<N; i++) {
var P = 180-(((a/N)*i)+g);
var base = h/(Math.tan(P));
_root.attachMovie(“box”, “box”+i, i);
_root["box"+i]._xscale = base;
_root["box"+i]._yscale = base;
_root["box"+i].id = i;
_root["box"+i].dif = base;
}

Click here for the link to the swf

and here to download th fla file

on(press){

_root.variable = Math.abs ( _root.variable-1);

}

Math.abs stands for absolute – ie negatives become positives

This is useful for any boolean variable eg: _visible, textbox border etc

or click to view

Another method of getting a holographics effect is to print a number of different coloured grids on a tranparency and cut it up into squares, placing each grid, smooth side to rough side, ontop of each other, so they created a fine layering up of variated colour and position, slightly out of phase. Bending some, or twisting a few of the sheets created and interesting 3d dimesional distorting of the grid of sine wave tartan.

What I’ve found is that the 3d dimensional effect in the interference pattern is created not by the plain, or reference beam or grating, and not by the image beam bounced off the object, but by the pattern of the two as they come in and out of phase. This is importnat when trying to create a 3d dimensional shape from the reverse end, IE with programming.

So people were over the surreal effect in the auditorium and ready for a bit of something different, which they got, in the form of an indian strip tease, complete with incence bear feet chiming bells and a saucy young man in  a loin cloth who handed out flowers in the audience. The women next to me got an aphid in hers. Shee was very hot and asked for the windows to be opened. After that we had to get up and do some stretches with the yogi at the end, he was talking about the sun and the importance of being clean. He had on a purple sari and was a trained laugher, and that was how we ended it all laughing. We had to look to the person next to us and giggle or gaffaw.

Every one was ready for lunch then and we went down to the buffet which was many different dishes, with mouthfull sized slices on each plate, spread on a big center table.

After that I felt refreshed by the air in the auditorium which was a relief because it was time for the computer whiz that we had from up north. He talked really fast and focused all our attention on an image of a cube which he rotated as he talked. sometimes the cube was devided and broken apart and then connected together in a different order. This was his computer program which he used to illustrate a model he had developed.

Whether you have to move you head or the mouse is another question. Momentum sensitve goggles could be an answer, or some kind of latice – as described earlier , but whichever way, a veiw for each eeye will make it really 3d.

PS have you noticed a a dvd or CD – some are better than others, reflects a rainbow which is a sort of vortex that can be viewed from different angles.

I’ve imported from photoshop a blurred grayscale image which in flash I’ve converted into a bitmap with a color threshold that makes it look like a contour map. Each colour is devided into separate layers and masks a grid. For each layer, the grid is a fraction larger – 2 pixels, the smallest being in the center, at th top level. This mimics the effects light waves have when bounced off an object, and viewd through a grid – an interfernece pattern – see below. When I get flash 8 I will use the bitmapData object to make an automatic color picker that will detect the different levels of the image, and bend an array of lines fractionally in the right directions. Intead of using a floating grid though, I want to find or make a refractive grid, like many rows of tiny crytals, so each eye gets a different view, making it more 3d.
go here to see experiment

They image that you see in the hologram, is the image of the the lines of light as they come in and out of phase, amplifying or decresing each other. In a real hologram, this is produced by bouncing a lasers off a three dimensional object that you want a holograph of, and recording those reflected beam, along with the beams from another laser as it intersects with those beams and creates the intgerference pattern.

Below is an example of what I’m talking about, simply created with a grid, overlaid on another grid which has been minutely distorted so as to come in and out of phases with the grid ontop, much as the light waves from a lasers would do.

go here to have alook

I know a holographic sticker works usesing a grate . Where your head is depends on what view of the image you get. The image is devided into a grate which is magnified through a repeated pattern of cerated plastic saw tooth shaped ridges, many mini prism all magnifying the image line under them.

The computer screen could be magnified in the same way. Only with stickers, the graTE usually runs horizontanlly, so what you see is two different, distinct perspectives, from above and below.

A fresnel lens is a radial grate. If you put it against the computer screen it creates a series of radiating rainbow spokes. This is the white light of the computer screen bieng magnified so you can see the RGB dots which make it up. If you hold it up to a white light you can see rainbow halos in it. these are the fringes of the white light as the different frequencies which make it up refract at different rates.

A true laser hologrpah works by capturing the interference of laser light waves as they bounce of the object. This works similarly to the office toys you often see that transpose the print of your hand.

If each pixel of the screen was composed of many different pixels each showing the object in all the angles from which the light bounces off it, the 3d impression, and this was viewed through some grate which revealed to the eye only the angle that was visible from the eyes positions, a 3dimensional effect would take place. And if the grate was removed, or on some surface protruding from the image on the screen, this would give each eye a slightly differeing perspective, creating a truly holographic effect.

have a look at this propotype model

At first hand a simple program for quickly building applications with little knowledge needed about intereacting with systems.

Now to do that {mdm}Script 2.0 replaces the asyncronous fscommand. Mdm script plays within actionscript in the order you put it there. Also it is object oriented, so like actionscript you can build classes with object instances that use MDM script.

Unlike FScommand, it is cross platform, and can be used on MAc OSX.

So far I found the demo is really easy to use and easily accessible for those without prior application building knowledge.

The help menu led to a one of a series of pages half way through the subject I was looking for and the arrow buttons didn’t follow the subject thread, so the help database needed to be better organised.

The scroll menu at the top is not immediately accessible, and not helpful to those not familiar with the icons symbols.

But the interface in all is one screen from which all the main screens can be accessed.

It caters for many things an application might need. Installers settings, input including tablet and joystick and touchscreen, version and demo/trial version options, sp[lash screen, screen saver, icons and executable file alpha levels and skins.

Also MDM script makes it easy to save variables and text documents.

Looks like a good program for any one with an aim to make a commercial or hardrive based swf product.

go here to get the free trial download

http://www.multidmedia.com/software/zinc/