code: function(color) {
  
              var matrix = null,
                  originMatrix = null,
                  colorValue = [];
  
              if (Utils.isString(color)) {
  
                  color = Color.parse(color);
  
              }
  
              if (!color) {
                  return this;
              }
  
              matrix = ColorMatrixEffect.MATRIX_EMPTY.split(' ');
  
              colorValue.push(color.get('r'));
              colorValue.push(color.get('g'));
              colorValue.push(color.get('b'));
  
              // rgb 分量更改
              for (var i = 0, len = colorValue.length; i < len; i++) {
  
                  matrix[i * 5 + 3] = colorValue[i] / 255;
  
              }
  
              // alpha 分量更改
              matrix[18] = color.get('a');
  
              this.colorMatrixEffect.set('values', matrix.join(' '));
  
              return this;
  
          }
docs: 设置投影颜色