B-spline Background
Some introductory background on interpolating B-splines and their construction can be
found here.
Installation
einspline is written in standard C
conforming to the C99 standard. To install it, you will need a
compiler which supports this standard. It uses
autoconf/automake/libtool for installation, but these are not required
to build the library. The following is a quick set of instructions
for installing einspline.
- Download the source from here .
- Unpack the tarball with a command such as
tar xvpzf einspline-0.5.tar.gz
- cd to the einspline root directory.
- Automatically configure for your machine by running the
configure script.
./configure
- For more configuration options run:
./configure --help
For example, to configure the library to be installed in your
home directory (such as on a supercomputer where you do not
have root access), run
./configure --prefix=$HOME
- To take maximum advantage of SSE instructions, configure
with "--enable-sse"
- To utilize software prefetch (in some routines) use
"--enable-prefetch". This improves speed significantly
on some processors and hurts on others.
- Build the library with
make
- Finally, install the library with
make install
Library API
C interface
libbspline organizes spline routines into two groups: those which are
specified on a uniform grid (or multidimensional mesh), and those on
nonuniform grids. The uniform versions of the routines are documented
below, followed by the nonuniform versions.
FORTRAN 77 interface
Python interface
This interface has not yet been coded.
