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README.md

estream2: Evenly spaced streamlines (2D)

What is it?

estream2 calculates evenly spaced streamlines.

The details of the method can be found in B. Jobard and W. Lefer, Creating Evenly-Spaced Streamlines of Arbitrary Density, Proc. Eighth Eurographics Workshop on Visualization in Scientific Computing, pp. 45-55, 1997.

For comments, questions, or suggestions, please email cthissen@gmail.com or leave a comment under the issues tab at github.com/cthissen/estream2

Christopher J. Thissen, Yale University

Why?

Evenly spaced streamlines better illustrate the structure of the flow field. Compare even and unevely spaced streamlines:
alt text alt text

Requirements & Installation

No toolboxes are required to run the program, and no installation is necessary.

Usage

estream2 can be run with the same input arguments as stream2. For example, with estream2.m on the current path (e.g. cd to the directory containing estream2.m), run the following lines

load wind
sx = 80; % set initial seed
sy = 35;
stepsize = 0.05; 
maxIter = 10000; % max iterations for a single streamline
dSep = 3; % separation distance between streamlines
XY = estream2(x(:,:,5),y(:,:,5),u(:,:,5),v(:,:,5),sx,sy,[stepsize,maxIter,dSep],'plot');
streamline(XY);

Additional details can be found by typing help estream2 at the command prompt.

The Latest Version

Details of the latest version can be found on the github project page under server project page under https://github.com/cthissen/estream2

Contributors

Christopher Thissen, Yale University. cthissen@gmail.com

Feedback

Your comments are welcome! If you find any bugs or have feature requests report them to Christopher Thissen, christopher.thissen@yale.edu.

Issues can also be reported online: https://github.com/cthissen/estream2/issues

License

See License file.

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