vfplot is a software for plotting 2D vector fields.
Here are some key features of "vfplot":
· The idea of vfplot is to plot vector fields with relatively large arrows — large enough to be perceived individually
· For large arrows to accurately represent the field they need to follow it in their shape; vfplot uses simple circular arcs
· Placement of large arrows on a regular grid would limit the dynamic range possible; vfplot places the arrows via a packing of their bounding ellipses
· Fields can be specified by data in a number of formats: a simple ASCII grid format, Gerris gfs files, or a pair of GMT grd files. Several test fields are built in and adding another is straightforward if you have a little C experience
· Output is in the PostScript format which can be converted to SVG, PDF and other vector formats with standard tools. The files are small, typically a few tens of kilobytes
Limited in scope:
· The vfplot program plots only arrows, it will not be a general purpose plotting program
· Released under the GNU GPL v3, contact the author for other licencing
What's New in This Release: [ read full changelog ]
· This version sees a rewrite of the multi-thread code, resulting in a substantial speedup on multi-processor hardware.
· Additionally, the supporting gfs2xyz2D utility was updated to the latest version of the Gerris library.