HuasoFoundries /
jpgraph
| Conditions | 63 |
| Paths | > 20000 |
| Total Lines | 264 |
| Code Lines | 183 |
| Lines | 0 |
| Ratio | 0 % |
| Changes | 0 | ||
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
Methods with many parameters are not only hard to understand, but their parameters also often become inconsistent when you need more, or different data.
There are several approaches to avoid long parameter lists:
| 1 | <?php |
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| 38 | function imageSmoothArcDrawSegment(&$img, $cx, $cy, $a, $b, $aaAngleX, $aaAngleY, $color, $start, $stop, $seg) |
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| 39 | { |
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| 40 | // Originally written from scratch by Ulrich Mierendorff, 06/2006 |
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| 41 | // Rewritten and improved, 04/2007, 07/2007 |
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| 42 | |||
| 43 | // Please do not use THIS function directly. Scroll down to imageSmoothArc(...). |
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| 44 | |||
| 45 | $fillColor = imageColorExactAlpha($img, $color[0], $color[1], $color[2], $color[3]); |
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| 46 | |||
| 47 | $xStart = abs($a * cos($start)); |
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| 48 | $yStart = abs($b * sin($start)); |
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| 49 | $xStop = abs($a * cos($stop)); |
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| 50 | $yStop = abs($b * sin($stop)); |
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| 51 | $dxStart = 0; |
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| 52 | $dyStart = 0; |
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| 53 | $dxStop = 0; |
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| 54 | $dyStop = 0; |
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| 55 | if ($xStart != 0) { |
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| 56 | $dyStart = $yStart / $xStart; |
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| 57 | } |
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| 58 | if ($xStop != 0) { |
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| 59 | $dyStop = $yStop / $xStop; |
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| 60 | } |
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| 61 | if ($yStart != 0) { |
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| 62 | $dxStart = $xStart / $yStart; |
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| 63 | } |
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| 64 | if ($yStop != 0) { |
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| 65 | $dxStop = $xStop / $yStop; |
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| 66 | } |
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| 67 | if (abs($xStart) >= abs($yStart)) { |
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| 68 | $aaStartX = true; |
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| 69 | } else { |
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| 70 | $aaStartX = false; |
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| 71 | } |
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| 72 | if ($xStop >= $yStop) { |
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| 73 | $aaStopX = true; |
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| 74 | } else { |
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| 75 | $aaStopX = false; |
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| 76 | } |
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| 77 | //$xp = +1; $yp = -1; $xa = +1; $ya = 0; |
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| 78 | for ($x = 0; $x < $a; $x += 1) { |
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| 79 | /*$y = $b * sqrt( 1 - ($x*$x)/($a*$a) ); |
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| 80 | |||
| 81 | $error = $y - (int)($y); |
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| 82 | $y = (int)($y); |
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| 83 | |||
| 84 | $diffColor = imageColorExactAlpha( $img, $color[0], $color[1], $color[2], 127-(127-$color[3])*$error );*/ |
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| 85 | |||
| 86 | $_y1 = $dyStop * $x; |
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| 87 | $_y2 = $dyStart * $x; |
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| 88 | View Code Duplication | if ($xStart > $xStop) { |
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| 89 | $error1 = $_y1 - (int)($_y1); |
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| 90 | $error2 = 1 - $_y2 + (int)$_y2; |
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| 91 | $_y1 = $_y1 - $error1; |
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| 92 | $_y2 = $_y2 + $error2; |
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| 93 | } else { |
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| 94 | $error1 = 1 - $_y1 + (int)$_y1; |
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| 95 | $error2 = $_y2 - (int)($_y2); |
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| 96 | $_y1 = $_y1 + $error1; |
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| 97 | $_y2 = $_y2 - $error2; |
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| 98 | } |
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| 99 | /* |
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| 100 | if ($aaStopX) |
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| 101 | $diffColor1 = imageColorExactAlpha( $img, $color[0], $color[1], $color[2], 127-(127-$color[3])*$error1 ); |
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| 102 | if ($aaStartX) |
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| 103 | $diffColor2 = imageColorExactAlpha( $img, $color[0], $color[1], $color[2], 127-(127-$color[3])*$error2 ); |
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| 104 | */ |
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| 105 | |||
| 106 | if ($seg == 0 || $seg == 2) { |
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| 107 | $i = $seg; |
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| 108 | if (!($start > $i * M_PI / 2 && $x > $xStart)) { |
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| 109 | if ($i == 0) { |
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| 110 | $xp = +1; |
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| 111 | $yp = -1; |
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| 112 | $xa = +1; |
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| 113 | $ya = 0; |
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| 114 | } else { |
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| 115 | $xp = -1; |
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| 116 | $yp = +1; |
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| 117 | $xa = 0; |
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| 118 | $ya = +1; |
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| 119 | } |
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| 120 | if ($stop < ($i + 1) * (M_PI / 2) && $x <= $xStop) { |
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| 121 | $diffColor1 = imageColorExactAlpha($img, $color[0], $color[1], $color[2], 127 - (127 - $color[3]) * $error1); |
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| 122 | $y1 = $_y1; |
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| 123 | if ($aaStopX) { |
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| 124 | imageSetPixel($img, $cx + $xp * ($x) + $xa, $cy + $yp * ($y1 + 1) + $ya, $diffColor1); |
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| 125 | } |
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| 126 | } else { |
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| 127 | $y = $b * sqrt(1 - ($x * $x) / ($a * $a)); |
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| 128 | $error = $y - (int)($y); |
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| 129 | $y = (int)($y); |
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| 130 | $diffColor = imageColorExactAlpha($img, $color[0], $color[1], $color[2], 127 - (127 - $color[3]) * $error); |
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| 131 | $y1 = $y; |
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| 132 | if ($x < $aaAngleX) { |
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| 133 | imageSetPixel($img, $cx + $xp * $x + $xa, $cy + $yp * ($y1 + 1) + $ya, $diffColor); |
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| 134 | } |
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| 135 | } |
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| 136 | if ($start > $i * M_PI / 2 && $x <= $xStart) { |
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| 137 | $diffColor2 = imageColorExactAlpha($img, $color[0], $color[1], $color[2], 127 - (127 - $color[3]) * $error2); |
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| 138 | $y2 = $_y2; |
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| 139 | if ($aaStartX) { |
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| 140 | imageSetPixel($img, $cx + $xp * $x + $xa, $cy + $yp * ($y2 - 1) + $ya, $diffColor2); |
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| 141 | } |
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| 142 | } else { |
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| 143 | $y2 = 0; |
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| 144 | } |
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| 145 | View Code Duplication | if ($y2 <= $y1) { |
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| 146 | imageLine($img, $cx + $xp * $x + $xa, $cy + $yp * $y1 + $ya, $cx + $xp * $x + $xa, $cy + $yp * $y2 + $ya, $fillColor); |
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| 147 | } |
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| 148 | } |
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| 149 | } |
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| 150 | |||
| 151 | if ($seg == 1 || $seg == 3) { |
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| 152 | $i = $seg; |
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| 153 | if (!($stop < ($i + 1) * M_PI / 2 && $x > $xStop)) { |
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| 154 | if ($i == 1) { |
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| 155 | $xp = -1; |
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| 156 | $yp = -1; |
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| 157 | $xa = 0; |
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| 158 | $ya = 0; |
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| 159 | } else { |
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| 160 | $xp = +1; |
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| 161 | $yp = +1; |
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| 162 | $xa = 1; |
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| 163 | $ya = 1; |
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| 164 | } |
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| 165 | if ($start > $i * M_PI / 2 && $x < $xStart) { |
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| 166 | $diffColor2 = imageColorExactAlpha($img, $color[0], $color[1], $color[2], 127 - (127 - $color[3]) * $error2); |
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| 167 | $y1 = $_y2; |
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| 168 | if ($aaStartX) { |
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| 169 | imageSetPixel($img, $cx + $xp * $x + $xa, $cy + $yp * ($y1 + 1) + $ya, $diffColor2); |
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| 170 | } |
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| 171 | } else { |
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| 172 | $y = $b * sqrt(1 - ($x * $x) / ($a * $a)); |
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| 173 | $error = $y - (int)($y); |
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| 174 | $y = (int) $y; |
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| 175 | $diffColor = imageColorExactAlpha($img, $color[0], $color[1], $color[2], 127 - (127 - $color[3]) * $error); |
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| 176 | $y1 = $y; |
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| 177 | if ($x < $aaAngleX) { |
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| 178 | imageSetPixel($img, $cx + $xp * $x + $xa, $cy + $yp * ($y1 + 1) + $ya, $diffColor); |
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| 179 | } |
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| 180 | } |
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| 181 | if ($stop < ($i + 1) * M_PI / 2 && $x <= $xStop) { |
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| 182 | $diffColor1 = imageColorExactAlpha($img, $color[0], $color[1], $color[2], 127 - (127 - $color[3]) * $error1); |
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| 183 | $y2 = $_y1; |
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| 184 | if ($aaStopX) { |
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| 185 | imageSetPixel($img, $cx + $xp * $x + $xa, $cy + $yp * ($y2 - 1) + $ya, $diffColor1); |
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| 186 | } |
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| 187 | } else { |
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| 188 | $y2 = 0; |
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| 189 | } |
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| 190 | View Code Duplication | if ($y2 <= $y1) { |
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| 191 | imageLine($img, $cx + $xp * $x + $xa, $cy + $yp * $y1 + $ya, $cx + $xp * $x + $xa, $cy + $yp * $y2 + $ya, $fillColor); |
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| 192 | } |
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| 193 | } |
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| 194 | } |
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| 195 | } |
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| 196 | |||
| 197 | ///YYYYY |
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| 198 | |||
| 199 | for ($y = 0; $y < $b; $y += 1) { |
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| 200 | /*$x = $a * sqrt( 1 - ($y*$y)/($b*$b) ); |
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| 201 | |||
| 202 | $error = $x - (int)($x); |
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| 203 | $x = (int)($x); |
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| 204 | |||
| 205 | $diffColor = imageColorExactAlpha( $img, $color[0], $color[1], $color[2], 127-(127-$color[3])*$error ); |
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| 206 | */ |
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| 207 | $_x1 = $dxStop * $y; |
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| 208 | $_x2 = $dxStart * $y; |
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| 209 | View Code Duplication | if ($yStart > $yStop) { |
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| 210 | $error1 = $_x1 - (int)($_x1); |
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| 211 | $error2 = 1 - $_x2 + (int)$_x2; |
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| 212 | $_x1 = $_x1 - $error1; |
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| 213 | $_x2 = $_x2 + $error2; |
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| 214 | } else { |
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| 215 | $error1 = 1 - $_x1 + (int)$_x1; |
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| 216 | $error2 = $_x2 - (int)($_x2); |
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| 217 | $_x1 = $_x1 + $error1; |
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| 218 | $_x2 = $_x2 - $error2; |
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| 219 | } |
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| 220 | /* |
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| 221 | if (!$aaStopX) |
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| 222 | $diffColor1 = imageColorExactAlpha( $img, $color[0], $color[1], $color[2], 127-(127-$color[3])*$error1 ); |
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| 223 | if (!$aaStartX) |
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| 224 | $diffColor2 = imageColorExactAlpha( $img, $color[0], $color[1], $color[2], 127-(127-$color[3])*$error2 ); |
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| 225 | */ |
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| 226 | |||
| 227 | View Code Duplication | if ($seg == 0 || $seg == 2) { |
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| 228 | $i = $seg; |
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| 229 | if (!($start > $i * M_PI / 2 && $y > $yStop)) { |
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| 230 | if ($i == 0) { |
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| 231 | $xp = +1; |
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| 232 | $yp = -1; |
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| 233 | $xa = 1; |
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| 234 | $ya = 0; |
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| 235 | } else { |
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| 236 | $xp = -1; |
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| 237 | $yp = +1; |
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| 238 | $xa = 0; |
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| 239 | $ya = 1; |
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| 240 | } |
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| 241 | if ($stop < ($i + 1) * (M_PI / 2) && $y <= $yStop) { |
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| 242 | $diffColor1 = imageColorExactAlpha($img, $color[0], $color[1], $color[2], 127 - (127 - $color[3]) * $error1); |
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| 243 | $x1 = $_x1; |
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| 244 | if (!$aaStopX) { |
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| 245 | imageSetPixel($img, $cx + $xp * ($x1 - 1) + $xa, $cy + $yp * ($y) + $ya, $diffColor1); |
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| 246 | } |
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| 247 | } |
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| 248 | if ($start > $i * M_PI / 2 && $y < $yStart) { |
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| 249 | $diffColor2 = imageColorExactAlpha($img, $color[0], $color[1], $color[2], 127 - (127 - $color[3]) * $error2); |
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| 250 | $x2 = $_x2; |
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| 251 | if (!$aaStartX) { |
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| 252 | imageSetPixel($img, $cx + $xp * ($x2 + 1) + $xa, $cy + $yp * ($y) + $ya, $diffColor2); |
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| 253 | } |
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| 254 | } else { |
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| 255 | $x = $a * sqrt(1 - ($y * $y) / ($b * $b)); |
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| 256 | $error = $x - (int)($x); |
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| 257 | $x = (int)($x); |
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| 258 | $diffColor = imageColorExactAlpha($img, $color[0], $color[1], $color[2], 127 - (127 - $color[3]) * $error); |
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| 259 | $x1 = $x; |
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| 260 | if ($y < $aaAngleY && $y <= $yStop) { |
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| 261 | imageSetPixel($img, $cx + $xp * ($x1 + 1) + $xa, $cy + $yp * $y + $ya, $diffColor); |
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| 262 | } |
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| 263 | } |
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| 264 | } |
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| 265 | } |
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| 266 | |||
| 267 | View Code Duplication | if ($seg == 1 || $seg == 3) { |
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| 268 | $i = $seg; |
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| 269 | if (!($stop < ($i + 1) * M_PI / 2 && $y > $yStart)) { |
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| 270 | if ($i == 1) { |
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| 271 | $xp = -1; |
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| 272 | $yp = -1; |
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| 273 | $xa = 0; |
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| 274 | $ya = 0; |
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| 275 | } else { |
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| 276 | $xp = +1; |
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| 277 | $yp = +1; |
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| 278 | $xa = 1; |
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| 279 | $ya = 1; |
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| 280 | } |
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| 281 | if ($start > $i * M_PI / 2 && $y < $yStart) { |
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| 282 | $diffColor2 = imageColorExactAlpha($img, $color[0], $color[1], $color[2], 127 - (127 - $color[3]) * $error2); |
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| 283 | $x1 = $_x2; |
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| 284 | if (!$aaStartX) { |
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| 285 | imageSetPixel($img, $cx + $xp * ($x1 - 1) + $xa, $cy + $yp * $y + $ya, $diffColor2); |
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| 286 | } |
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| 287 | } |
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| 288 | if ($stop < ($i + 1) * M_PI / 2 && $y <= $yStop) { |
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| 289 | $diffColor1 = imageColorExactAlpha($img, $color[0], $color[1], $color[2], 127 - (127 - $color[3]) * $error1); |
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| 290 | $x2 = $_x1; |
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| 291 | if (!$aaStopX) { |
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| 292 | imageSetPixel($img, $cx + $xp * ($x2 + 1) + $xa, $cy + $yp * $y + $ya, $diffColor1); |
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| 293 | } |
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| 294 | } else { |
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| 295 | $x = $a * sqrt(1 - ($y * $y) / ($b * $b)); |
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| 296 | $error = $x - (int)($x); |
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| 297 | $x = (int)($x); |
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| 298 | $diffColor = imageColorExactAlpha($img, $color[0], $color[1], $color[2], 127 - (127 - $color[3]) * $error); |
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| 299 | $x1 = $x; |
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| 300 | if ($y < $aaAngleY && $y < $yStart) { |
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| 301 | imageSetPixel($img, $cx + $xp * ($x1 + 1) + $xa, $cy + $yp * $y + $ya, $diffColor); |
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| 302 | } |
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| 392 |
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Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it.
The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production.
This check looks for comments that seem to be mostly valid code and reports them.