File BitmapData with Rectangle : BitmapData « Graphics « Flash / Flex / ActionScript






  1. Flash / Flex / ActionScript
  2. Graphics
  3. BitmapData

File BitmapData with Rectangle

 

package{
  import flash.display.Sprite;
  import flash.display.*;
    import flash.geom.*;
  public class Main extends Sprite{
    public function Main(){

        var imgData:BitmapData = new BitmapData(20, 20, false, 0xFF00FF00);
        imgData.fillRect(new Rectangle(5, 5, 10, 10), 0xFF0000FF);
        var bmp:Bitmap = new Bitmap(imgData);
        addChild(bmp);
    }
  }
}








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5.Create animation by setting the bitmap pixel
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8.The alpha value of pixels can be set in transparent bitmaps only (i.e., bitmaps created with the value true passed to the transparent parameter of the BitmapData constructor)
9.getPixel32() Versus getPixel( )
10.Retrieve a pixel with Alpha set to 255, from a transparent image
11.Retrieving the Color of a Region of Pixels
12.Modifying a BitmapData
13.Assign a pixel value using a number that specifies an Alpha channel of CC
14.Using BitmapData.lock( ) to improve performance
15.Assigning the Color of a Region of Pixels
16.How draw( ) handles Alpha channel values
17.Applying Color Transformations
18.Detecting Areas by Color
19.Adding Noise
20.Adding Perlin Noise
21.Updates the octaves parameter
22.The randomSeed parameter is responsible for the randomness of the noise
23.The following code makes a BitmapData object with Perlin noise, and then uses that object as a bitmap fill. Because the stitch parameter is false, the edges are visible as it tiles.
24.PerlinNoise animation