ParametricPlot with jumps
- To: mathgroup at smc.vnet.net
- Subject: [mg16123] ParametricPlot with jumps
- From: David Epstein <dbae at maths.warwick.ac.uk>
- Date: Sat, 27 Feb 1999 03:23:00 -0500
- Organization: University of Warwick
- Sender: owner-wri-mathgroup at wolfram.com
I want to do something similar to the following. I have a curve on a cylinder. I want to cut the cylinder along one of its generators and open it out to a flat strip (the inverse process to how cans are made). If I now use ParametricPlot to see what the curves look like on the flat strip, there are jumps where the curves cross the generator which has turned into a pair of edges of the flat strip. The way ParametricPlot treats this situation is to construct an artificial interpolation between the two points where the curve meets corresponding opposite edges of the strip. What I want it to do is not to make this interpolation. One way to achieve this is to solve for when the curve cuts the edge of the figure and then do separate plots between each of these intersection points. Is this the easiest way, or is there some way of telling ParametricPlot not to interpolate over huge distances? David Epstein