SURF(1) Surf Tool SURF(1)
NAME
surf - visualization of algebraic curves and surfaces
SYNOPSIS
surf [FILE]...
DESCRIPTION
surf is a script driven tool to render algebraic curves and surfaces.
The only input needed is the equation of an algebraic curve/surface in
everyday mathematical notation. The output is a (series of) color or
black and white image(s) in one of several file formats.
surf also provides a C-style command language which helps working out
more complicated equations.
The resolution of an image is only bounded by the available memory.
Since the image is stored as an array of floats and because some image
processing algorithms need a copy of the image, you need at least
width*height*12 bytes of virtual memory.
A relevant extension to the image output filename can be automatically
provided by either enabling the auto-extension machinery or giving a
dummy extension. The auto-extension machinery is disabled by default
for backward compatibility, while the implemented dummy extensions are:
.xxx, .XXX, .auto-extension, and .automatic-extension.
surf can handle curves/surfaces up to degree 30. The main features in-
clude algebraic curves, algebraic surfaces, hyper plane sections, lines
on surfaces, multiple curves/surfaces, adaptive anti aliasing and
dithering.
OPTIONS
--disable-auto-extension
disable automatic extension for graphic files (default)
--enable-auto-extension
enable automatic extension for graphic files
-v, --verbose
verbose operation, print the executed commands (default)
-q, --quiet, --silent
quiet operation, do not print the executed commands
-h, --help
display this help and exit
-V, --version
display version tuple and exit
AUTHORS
Stephan Endrass, Hans Huelf, Ruediger Oertel, Kai Schneider, Ralf
Schmitt, Johannes Beigel
COPYRIGHT
Copyright (C) 1997-2015 Johannes Gutenberg-Universitaet Mainz
Copyright (C) 1996-1997 Friedrich Alexander Universitaet Erlangen-
Nuernberg
surf (Debian ) January 2023 SURF(1)
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