libGD

GD is an open source code library for the dynamic creation of images by programmers. GD is written in C, and “wrappers” are available for Perl, PHP and other languages. GD creates PNG, JPEG and GIF images, among other formats. GD is commonly used to generate charts, graphics, thumbnails, and most anything else, on the fly. While not restricted to use on the web, the most common applications of GD involve web site development.

See the GD website for more informations.

FS#74 — imagefilledarc can take a lot of CPU

Task Type Bug Report Category Drawing function Status Closed Assigned To Pierre Joye (Pierre) Operating System All Severity High Priority Normal Reported Version 2.0.34 Due in Version 2.0.35 Due Date Undecided Percent Complete Votes 0 Private No

Details imagearc and imagefilledarc can use a very important amount of CPU if start and end angles is very higher than 360°. Examples : imagefilledarc($image, 50, 50, 100, 50, 0, 2147483647, $navy, IMG_ARC_PIE); - or - imagearc($image, 50, 50, 100, 50, 0, 2147483647, $navy); (It can exceed 30 seconds execution time) A think end-start don’t need to be so large. For imagefilledarc : His problem is more important if style = IMG_ARC_EDGED or IMG_ARC_PIE but it exists on IMG_ARC_NOFILL and IMG_ARC_CHORD.