The source code for a graphics application written in C, if it is to use
libplot, must contain the lines
#include <stdio.h> #include <plot.h>
The header file plot.h is distributed with libplot, and
should have been installed on your system where your C compiler will
find it. It contains prototypes for each of the functions in
libplot, and some miscellaneous definitions.
In current releases of libplot, the names of all functions begin
with the prefix "pl_". For example, the openpl operation is
invoked on a Plotter by calling the function pl_openpl. If you
wish, you may maintain backward compatibility by also including the
header file plotcompat.h. This header file redefines
openpl as pl_openpl, and similarly for the other
libplot functions.
To link your application with libplot, you would use the
appropriate `-l' option(s) on the command line when compiling it.
You would use
-lplot -lXaw -lXmu -lXt -lXext -lX11 -lm
or, in recent releases of the X Window System,
-lplot -lXaw -lXmu -lXt -lSM -lICE -lXext -lX11 -lm
(Alternatively, you may need to use `-lplot -lXm -lXt -lXext -lX11 -lm', `-lplot -lXm -lXt -lXext -lX11 -lm -lc -lgen', or `-lplot -lXm -lXt -lXext -lX11 -lm -lc -lPW', on systems that provide Motif widgets instead of Athena widgets. In recent releases of the X Window System, you would insert `-lSM -lICE'. Recent releases of Motif require `-lXp' as well.)
On some platforms, the directories in which libplot or the other
libraries are stored must be specified on the command line. For
example, the options `-lXaw -lXmu -lXt -lSM -lICE -lXext -lX11',
which specify X Window System libraries, may need to be preceded by
an option like `-L/usr/X11/lib'.
On most systems libplot is installed as a DLL (dynamically linked
library, or `shared' library). This means that the linking with your
application will take place at run time rather than compile time. The
environment variable LD_LIBRARY_PATH lists the directories which
will be searched for DLL's at run time. For your application to be
executable, this environment variable should include the directory in
which libplot is stored.
Go to the first, previous, next, last section, table of contents.