LIBPLOT3(3)

NAME

libplot3 - graphics interface subroutines

SYNOPSIS

void pl_3box (FILE *fp,
              int x0,
              int y0,
              int z0,
              int x1,
              int y1,
              int z1);

DESCRIPTION

These subroutines generate graphic output commands for processing with the plot(1) plotting filters. They are slightly more general than those in libplot as these take a file pointer. They also include the BRL 3-D extensions to the plot intermediate code.

Pl_space or pl_3space must be used before any of the graphic primitives to declare the amount of space necessary. See plot3(5).

Pl_box or pl_3box draws a box between the two given opposite points. The 'pen' will be left at the second point.

Pl_circle draws a circle of radius r with center at the point (x, y). Note that circle and arc cannot be transformed in three space if one is using a filter to do that.

Pl_arc draws an arc of a circle with center at the point (x, y) between the points (x0, y0) and (x1, y1).

String arguments to pl_label and pl_linmod are terminated by nulls and do not contain new-lines.

There are also 2-D and 3_D double-precision versions, with arguments identical to their counterparts above. The naming conventions are to change the prefix to "pd"; examples are thus pd_point and pd_3point. Vector versions for 3_D (also double-precision) are prefixed "pdv", as in pdv_3point.

See plot3(5) and plot(5) for a description of the effect of the remaining functions.

FILES

/usr/brlcad/lib/libplot3.a: produces output for -plot(1G)- filters

WARNINGS

In order to compile a program containing these functions in file.c it is necessary to use: cc file.c -lplot3

Color specification and three-dimensional primitives are BRL extensions to the "unix plot" language that are not generally found on other systems.

AUTHOR

BRL-CAD Team

COPYRIGHT

BUG REPORTS

Reports of bugs or problems should be submitted via electronic mail to devs@brlcad.org