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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) { // average of px and py g = (px + py) / 2; return g; } function pixel(px, py, color) { _root.bitmap.setPixel(px, py, color); }

// 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) { // average of px and py g = (px+py)/2; return g; } function pixel(px:int, py:int, color:int) { bitmapdata.setPixel(px, py, color); } function sinus(x:int) { var s = Math.sin(x * 2 * Math.PI/ 400); return s; } function cosinus(x:int) { var s = Math.cos(x * 2 * Math.PI/ 400); return s; } function stretch(value:Number, center:int, amplitude:int) { var st = int(value * amplitude + center); return st; }

Dieses Beispiel zeigt die Summe der horizontalen und der vertikalen Koordinate als Grauwert. Die Funktion graph2d rechnet mit zwei Ausgangswerten px und py und stellt das Ergebnis als eine Art Höhenkurve oder Heatmap dar.

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