Flash Tutorials

Code Explanation[/st] loadMovie('image.jpg', imgHolder); Load "image.jpg" to the "imgHolder" Movie Clip. this.createEmptyMovieClip("zoomImg", 33); Create empty Movie Clip for the zoomed image.

//Set a mask inside the Movie Clip so the zoomed image is rounded
zoomImg.setMask(imgMask);

Set a mask in the "zoomImg" using the Movie Clip "imgMask" so that the zoomed image doesn't overlap the magnifying glass. The parameters for the function used are: setMask(Mask_MC); var zoomBitmap = new flash.display.BitmapData(155, 155, false, 0xEAEAEA); Create a new BitmapData with height and width of 155px no transparency and background color "0xEAEAEA". new BitmapData(width, height, transparency, color); Transparency and color are optional parameters. zoomImg.attachBitmap(zoomBitmap, 5); Attach "zoomBitmap" on the "zoomImg Movie Clip": attachBitmap(bitmapData, depth); var magPower = 2;

Zoom power. var zoomMtx = new flash.geom.Matrix(); A Matrix object to scale and draw the zoomed image. zoomMtx.scale(magPower, magPower); Set the scale parameters inside the matrix to "magPower"; the image will not be scaled yet, we still need to draw using this matrix. scale(_x scale, _y scale); magGlass.swapDepths(_root.getNextHighestDepth());

Bring the magnifying glass to the top. _root.onEnterFrame = function() {
Mouse.hide(); magGlass._x = _xmouse - 70; magGlass._y = _ymouse - 70;

Hide the mouse and set the position of the magGlass to be equal to the mouse. zoomImg._x = magGlass._x; zoomImg._y = magGlass._y; imgMask._x = magGlass._x; imgMask._y = magGlass._y;

Set the position for the rest of the Movie Clips. zoomMtx.tx = -_xmouse * magPower; zoomMtx.ty = -_ymouse * magPower;

The variables "tx" and "ty" inside a matrix represent the drawing location of the image; we set these two variables to make the zoomed image centered in the magnifying glass. zoomBitmap.draw(imgHolder, zoomMtx); }

Draw the zoomed image into the zoomBitmap using the draw() function: draw(source, matrix) That's the end of this tutorial. Check out other tutorials to get more knowledge about Flash!