Bug #77460 [NEW]: Filled arc drawing does not use the correct degree.

From: p1100i at gmx dot com Operating system: bionic / ArchLinux PHP version: 7.3.1 Package: GD related Bug Type: Bug Bug description:Filled arc drawing does not use the correct degree. Description: ------------ It seems the php-gd module which enables using imagefilledarc method cannot render in some degrees corecctly. * versions (format: distro: version) tested the issue on: * ubuntu-bionic: 7.2.10-0ubuntu0.18.04.1 * archlinux: 7.3.1 * for reproduction install php-gd and allow extension=gd in your php.ini Test script: --------------- <?php $image = imagecreatetruecolor(100, 100); $red = imagecolorallocate($image, 200, 0, 0); $white = imagecolorallocate($image, 255, 255, 255); imagefill($image, 0, 0, $white); imagefilledarc($image, 50, 50, 100, 50, 91, 360, $red, IMG_ARC_PIE); header('Content-type: image/png'); imagepng($image, phpversion() . '.png'); Expected result: ---------------- The rendered ellipse fill should start just one degree after the 6 hour-o-clock position. Actual result: -------------- The rendered ellipse fill starts much more after the 6-hour-o-clock position. -- Edit bug report at https://bugs.php.net/bug.php?id=77460&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=77460&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=77460&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=77460&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=77460&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=77460&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=77460&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=77460&r=needscript Try newer version: https://bugs.php.net/fix.php?id=77460&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=77460&r=support Expected behavior: https://bugs.php.net/fix.php?id=77460&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=77460&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=77460&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=77460&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=77460&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=77460&r=dst IIS Stability: https://bugs.php.net/fix.php?id=77460&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=77460&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=77460&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=77460&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=77460&r=mysqlcfg