Bug #81617 [Asn]: text with 90 degree angle not rendered correctly

Edit report at https://bugs.php.net/bug.php?id=81617&edit=1 ID: 81617 Updated by: cmb@php.net Reported by: dwhile at while dot org dot uk Summary: text with 90 degree angle not rendered correctly Status: Assigned Type: Bug Package: GD related Operating System: Linux PHP Version: 8.0.12 Assigned To: cmb Block user comment: N Private report: N New Comment: > Output can be seen at <https://www.while.org.uk/try.png> That is indeed broken. Anyhow, this looks very much like an upstream issue, so please report there[1]. But before, also check whether that happens with other fonts as well, and if possible, try with GD 2.3.3 or even their master HEAD. Also mention the freetype version you are using. [1] <https://github.com/libgd/libgd/issues> Previous Comments: ------------------------------------------------------------------------ [2021-11-12 12:50:13] dwhile at while dot org dot uk I have copied your code (and changed the font path to the relevant Linux format. Output can be seen at <https://www.while.org.uk/try.png> ------------------------------------------------------------------------ [2021-11-12 12:42:01] dwhile at while dot org dot uk Yes the text characters are overlayed on top of each other. GD version is 2.3.2 ------------------------------------------------------------------------ [2021-11-12 12:37:21] cmb@php.net To clarify, the following slightly modified example <?php $im = imagecreatetruecolor(30, 300); $white = imagecolorallocate($im, 255, 255, 255); $grey = imagecolorallocate($im, 128, 128, 128); $black = imagecolorallocate($im, 0, 0, 0); imagefilledrectangle($im, 0, 0, 29, 299, $white); $text = 'Testing...'; $font = 'C:/Windows/Fonts/Arial.ttf'; imagettftext($im, 20, 90, 26, 221, $grey, $font, $text); imagettftext($im, 20, 90, 25, 220, $black, $font, $text); imagepng($im, __DIR__ . "/81617.png"); ?> should give something like <https://imgur.com/a/kH8JmNG>. It is expected that the text is rendered from bottom to top; if you want it the other way, use an angle of 270°. However, if I understand you correctly, in your case the letters are overlayed. Which GD version do you use? ------------------------------------------------------------------------ [2021-11-12 11:52:38] dwhile at while dot org dot uk Description: ------------ Using the imagettftext function call with an angle of 90 degrees causes the output to be rendered with each letter of the text on top of one another. Using the example from the documentation page and changing the angle to 90 causes the problem indeed anything above around 45 degrees shows the same problem. Test script: --------------- <?php header('Content-Type: image/png'); $im = imagecreatetruecolor(400, 30); $white = imagecolorallocate($im, 255, 255, 255); $grey = imagecolorallocate($im, 128, 128, 128); $black = imagecolorallocate($im, 0, 0, 0); imagefilledrectangle($im, 0, 0, 399, 29, $white); $text = 'Testing...'; $font = '/usr/share/fonts/msttcorefonts/arial.ttf'; imagettftext($im, 20, 90, 11, 21, $grey, $font, $text); imagettftext($im, 20, 90, 10, 20, $black, $font, $text); imagepng($im); imagedestroy($im); ?> Expected result: ---------------- The text should be rendered vertically reading from bottom to top. Actual result: -------------- The rendered text has each character rendered on top of each other. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=81617&edit=1