TEDx logo creator

This PHP script generates TEDx logos, with the following options:

• White on black, or black on white
• Optional transparent background (PNG only)
• One- or two-line tagline
• Event name on same line or separate line
• Maximum height and/or maximum width
• Custom clear space around the logo
• Generate square images
• Export to PNG or JPEG

The script is currently hosted at http://bartvanmerrienboer.nl/tedxlogo/

GET HTTP requests

The script can either be used with the provided form (index.php) or images can be generated directly using a GET request to the script (logo.php) with the following parameters:

Parameter	Required/optional	Value	Comments
eventname	Required	string	URL encoded
color	Required	black or white	Color of the letters; not the background.
transparency	Optional	true or false
tagline	Required	1 or 2	1 for a one-line tagline, 2 for the two-line version
eventline	Required	1 or 2	1 for the event name on the same line, 2 for on a separate line
maxwidth	Optional*	numeric	Maximum width of the image in pixels, must be positive.
maxheight	Optional*	numeric	Maximum height of the image in pixels, must be positive.
border	Required	numeric	Clear space around the logo in pixels, must be non-negative.
square	Optional	true or false
format	Required	png32 or jpeg	JPEG can only be chosen without a transparent background.

* Either maxwidth or maxheight must be set, or both.

Example

http://bartvanmerrienboer.nl/tedxlogo/logo.php?eventname=Warwick&color=white&tagline=2&eventline=2&maxwidth=500&border=10&square=true&format=png32

Working

The script uses SVG files, which are based on the EPS files provided by TED. Note that all shapes of the original EPS have been thinned by 0.5 points because ImageMagick's SVG rasterization produces fairly thick edges. SimpleXML and XSLT are used to edit the SVG files before using the ImageMagick library to create the images.

Requirements

• PHP 5
• ImageMagick >= 6.3 (http://www.imagemagick.org/)
• Imagick PHP wrapper (http://pecl.php.net/package/imagick)
• SimpleXML
• xsl

Credits

This script was inspired by Yongho Shin's and Brian Alexander's PHP script (http://www.tedx-sandiego.com/creator/).