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Permalink: http://www.treeweb.es/u/974/ 01/02/2011

ShareCode

1 var h = [2  [0,1,0,1,0],3  [1,1,1,1,1],4  [0,1,0,1,0],5  [1,1,1,1,1],6  [0,1,0,1,0],7 ];8 9 function clone(data) {10  return JSON.parse(JSON.stringify(data));11 };12 13 function colorize(bitmap, randomness) {14  var max_value = bitmap.length*bitmap.length;15  16  for (var y in bitmap) {17  var row = bitmap[y];18  for (var x in row) {19  var value = row[x];20  if (value != 0) {21  var rx = 1+parseInt(x) - randomness + Math.floor(Math.random()*randomness*2);22  var ry = 1+parseInt(y) - randomness + Math.floor(Math.random()*randomness*2);23  bitmap[x][y] = 1 - rx*ry/max_value;24  }25  }26  }27  28  return bitmap;29 }30 31 function expand(bitmap, n) {32  result = [];33  for (var y in bitmap) {34  var new_row = [];35  var row = bitmap[y];36  for (var x in row) {37  var value = row[x];38  for (var i=0; i<n; i++) {39  new_row.push(value);40  }41  }42  for (var i=0; i<n; i++) {43  result.push(clone(new_row));44  }45  }46  return result;47 }48 49 function paint_bitmap(bitmap) {50  var result = '<div class="bitmap">';51  52  for (var y in bitmap) {53  result += '<div class="row">';54  var row = bitmap[y];55  for (var x in row) {56  var value = row[x];57  if (value != 0) {58  result += '<div class="cell" style="background-color: rgba(120, 150, 240,'+value+'")></div>';59  } else {60  result += '<div class="cell"></div>';61  }62  }63  result += '</div>';64  }65  66  result += '</div>';67  return result;68 }69 70 


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