NEU: Alle Visual Codes als Code Snippets für Flash CS5:
jetzt hier downloaden .

Computerbild eine Variable

Code Actionscript 2.0

Frame-Aktion

// initialize drawing createEmptyMovieClip("holder_mc", 1); _root.bitmap = new flash.display.BitmapData(200, 200, true, 0xFFFFFFFF); holder_mc.attachBitmap(_root.bitmap, 10, "auto", true); // go through all rows and columns for (px = 0; px < 200; px = px + 1) { for (py = 0; py < 200; py = py + 1) { g = graph2d(px, py); color = (g << 16 | g << 8 | g); pixel(px, py, color); } } // enlarge bitmap-view holder_mc._xscale = 200; holder_mc._yscale = 200; function graph2d(px, py) { g = sine(7 * px); g = stretch(g, 128, 128); // center 128, amplitude +-128 -> values between 0 und 255 return g; } function pixel(px, py, color) { _root.bitmap.setPixel(px, py, color); } function sine(x) { // sine conversion for values // between 0 and 400 (stage width) s = Math.sin(x * 2 * Math.PI / 400); return s; } function stretch(value, center, amplitude) { // scales and shifts value st = int(value * amplitude + center); return st; }

Code Actionscript 3.0

// initialize drawing var drawing:MovieClip = new MovieClip(); var bitmapdata = new BitmapData(200, 200, true, 0xFFFFFFFF); var bitmap = new Bitmap(bitmapdata); bitmap.smoothing = true; drawing.addChild(bitmap); this.addChild(drawing); // go through all rows and columns for (var px = 0; px < 200; px = px + 1) { for (var py = 0; py < 200; py = py + 1) { var g = graph2d(px, py); var color = (g << 16 | g << 8 | g); pixel(px, py, color); } } // enlarge bitmap-view drawing.scaleX = 2; drawing.scaleY = 2; function graph2d(px:int, py:int) { g = sinus(7 * px); // center 128, amplitude +-128 -> values between 0 und 255 g = stretch(g, 128, 128); return g; } function pixel(px, py, color) { bitmapdata.setPixel(px, py, color); } function sinus(x:int) { // sine conversion for values // between 0 and 400 (stage width) var s = Math.sin(x * 2 * Math.PI/ 400); return s; } function stretch(value:Number, center:int, amplitude:int) { // scales and shifts value var st = int(value * amplitude + center); return st; }

Infos

Dieses Beispiel zeigt den Sinus der horizontalen Koordinate als Grauwert. Die Funktion graph2d rechnet mit dem Ausgangswert px und stellt das Ergebnis als eine Art Höhenkurve dar.

Download

Right click: Flashfile AS 2.0 | Flashfile AS 3.0 | SWF-File


Share