libplot: A detailed listing
In the current release of GNU
libplot, any Plotter supports 92
distinct operations. A language binding for
necessarily includes 92 functions that correspond to these operations.
In the C binding, these 92 functions belong to the C API
(application programming interface). In the C++ binding, they are
implemented as public member functions of the
A language binding may also include functions for creating,
selecting, and deleting Plotters. For example, the C binding
includes the additional functions
pl_deletepl. See section The C application programming interface. In the C binding, the names
of all functions should be preceded by "pl_" unless the header file
plotcompat.h is included. See section C compiling and linking.
The 92 functions that operate on a specified Plotter are divided into the four sets tabulated below.
Many functions come in two versions: integer and double precision
floating point. Internally,
libplot uses double precision
floating point. The integer versions are provided for backward
compatibility. If there are two versions of a function, the name of
the floating point version begins with the letter `f'.
Many functions come in both absolute and relative versions, also. The latter use relative coordinates (i.e., coordinates relative to the current position of the graphics cursor), and their names end in `rel'.
Currently, only a few of the 92 functions have meaningful return values.
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