topical media & game development
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#graphic-flex-image-effects-02-Flex-ConvolutionFilterTest.ax

#graphic-flex-image-effects-02-Flex-ConvolutionFilterTest.ax [swf] [flash] flex 


  package {
  
          import flash.filters.ConvolutionFilter;
          import flash.filters.ColorMatrixFilter;
  
          [SWF(width=550, height=400, backgroundColor=0xEEEEEE)]
Tests application of the ConvolutionFilter to a loaded image. 

  
          public class @ax-graphic-flex-image-effects-02-Flex-ConvolutionFilterTest extends graphic_flex_image_effects_02_Flex_ImageFilterTest {
Applies the ConvolutionFilter to the loaded bitmap. 

  
                  override protected function applyFilter():void {
                          // the matrix to apply;
                          // this matrix creates a woodcut effect
                          var matrix:Array = [
                                  -1, -1, -1, -1, -1,
                                  -1, -1, -1, -1, -1,
                                  -1, -1, 24, -1, -1,
                                  -1, -1, -1, -1, -1,
                                  -1, -1, -1, -1, -1
                          ];
                          // calculate a divisor that is the sum of the matrix components
                          var divisor:Number = 0;
                          for each (var index:Number in matrix) {
                                  divisor += index;
                          }
                          var filter:ConvolutionFilter = new ConvolutionFilter();
                          filter.matrixX = 5;
                          filter.matrixY = 5;
                          filter.matrix = matrix;
                          filter.divisor = 1;
                          filter.bias = 0;
  
                          // a matrix to invert the colors of the image
                          matrix = [
                                  -1,  0,  0, 0, 255,
                                   0, -1,  0, 0, 255,
                                   0,  0, -1, 0, 255,
                                   0,  0,  0, 1, 0
                          ];
                          var colorFilter:ColorMatrixFilter = new ColorMatrixFilter(matrix);
  
                          // both filters are applied to the loaded image
                          _bitmap.filters = [filter, colorFilter];
                  }
  
          }
  
  }
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

(C) Æliens 04/09/2009

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