LSystems Application Please try out this LSystems program written in Java. You must be using a Java compatible web browser to access it. The source code for this applet can be downloaded here. Paula CooperDepartment of Computer Science, University of Introduction Lindenmayer systems (L-systems) provide an easy way for creating very complicated images such as fractals and trees through the specification of a few production rules. This demo is based on the program and sample L-systems presented in Przemyslaw Prusinkiewicz and Jim Hanan, Lindenmeyer Systems, Fractals, and Plants, Lecture Notes in Biomathematics 79, Springer-Verlag, Berlin 1989,1992 How to Use This L-systems Application In order to run an L-systems derivation the user must first specify the attributes of the derivation to be run. All of these entries are specified by entering the values in the provided text entry boxes, except for the production rules.
Processing.js Travel Time Tube Map (Built with Processing) Click on a station to see the London Underground map reorganise around the times of travel from that station. Shortest paths are used to place the other stations - radius is proportional to time to travel, and angle should be correct for as-the-crow-flies direction on a map. The concentric circles are at 10 minute intervals. Press 'g' to get back to the geographical tube map. NB:- times may not be accurate! Inspired by Oskar Karlin's reworking of the tube map around the time to travel from Elephant and Castle, and Rod McLaren's subsequent sketch 10 Minutes tube travel from Oxford Circus. Lots of things that need improving... Would be nice: a key for the different lines search for stations (type into the applet) list out the shortest path between two stations (not including time to change) sort out the 'white dot' connecting stations to match the proper tube map proper DLR times to travel (just used 2 mins for everything - tube ones are better) display travel card zones etc. Wishlist: