About the logo

A redisigned logo will appear over Winter break. The new logo will incoporate a letter 'B' for the renamed Center for Geometric and Biological computing. During this transition, some links may be broken and some figures may display incorrectly. If you need to get to the old_logos, they are stored in the logo/old_cgc directory.

Jeff Erickson designed the logo for the Center for Geometric Computing at Duke University during the First CGC Workshop on Computational Geometry. (Not during the talks, of course.) His goal was to create something more geometric than Brown's "Flintstone's" logo or Hopkins' concentric fuzzy letters, but much simpler than the CGAL project's contructed roman letters.

The logo is constructed as follows. Draw a horizontal line. Place seven evenly spaced points on the line, with adjacent pairs one unit apart. Around each of these points, draw a circle of radius sqrt(2), so that consecutive circles meet at right angles. Draw vertical ines through each pair of circle intersection points. (This is supposed to suggest a vertical decomposition, but it's also the Voronoi diagram of the original points.) Draw unit circles around the second, fourth, and sixth points; these are tangent to the vertical lines. Fill in the two C's and the curve of the G. The vertical bar of the G is defined by the vertical line between the fourth and fifth circles, a vertical line tangent to the left side of the fifth circle, and the original horizontal line. The colors were chosen to match the Hopkins logo (more or less).

Note that the CGC logo cannot be drawn "correctly" on a computer using integer or floating point numbers, since several of the points have irrational coordinates.

There are several versions you can download.

Center for Geometric Computing, Dept. of Computer Science, Duke University (cgc@cs.duke.edu) 16 May 97