Some more asymptote goodness

by Willie Wong

With some help from the TeX.SE community, I found out how to draw squiggly lines in Asymptote. The code for the squiggly lines can be found on that link to TeX.SE above. To the right is a sample output. The line is drawn with the default 45 degree angle. The circular curve is drawn with an 80 degree angle. The main reason I want to draw squiggly lines is to be able to use it to denote the singularity in a Carter-Penrose diagram, such as the one for Schwarzschild–de Sitter below.