# --*-perl-*--
# PLplot API template specification file.
# Geoffrey Furnish
# 28 June 1995
#
# Copyright (C) 2004  Andrew Ross
#
# This file specifies the PLplot API in a form suitable for input to
# pltclgen, the Perl script which autogenerates a set of Tcl command
# procedures for gaining access to the PLplot API from Tcl.  This file
# was constructed by inserting plplot.h, and then converting the C
# prototype to the form suitable to pltclgen.  Note that not all
# functions can be autogenerated.  As the PLplot Tcl API definition
# matures, the prototypes for the unneeded functions should just be
# eliminated from this file.
###############################################################################

# Set contour label format

pltclcmd pl_setcontlabelformat void
lexp	PLINT
sigprec	PLINT

# Set contour label parameters

pltclcmd pl_setcontlabelparam void
offset	PLFLT
size	PLFLT
spacing	PLFLT
active	PLINT

# Advance to subpage "page", or to the next one if "page" = 0.

pltclcmd pladv void
page	PLINT Def: 0

# Plot an arc

pltclcmd plarc void
x	PLFLT
y	PLFLT
a	PLFLT
b	PLFLT
angle1	PLFLT
angle2	PLFLT
rotate  PLFLT
fill	PLINT

# This functions similarly to plbox() except that the origin of the axes
# is placed at the user-specified point (x0, y0).

pltclcmd plaxes void
x0	PLFLT
y0	PLFLT
xopt	const char *
xtick	PLFLT
nxsub	PLINT
yopt	const char *
ytick	PLFLT
nysub	PLINT

# Plot a histogram using x to store data values and y to store frequencies

pltclcmd plbin void
nbin	PLINT
x	PLFLT *
y	PLFLT *
center	PLINT

# Start new page.  Should only be used with pleop().

pltclcmd plbop void

# This draws a box around the current viewport.

pltclcmd plbox void
xopt	const char *
xtick	PLFLT
nxsub	PLINT
yopt	const char *
ytick	PLFLT
nysub	PLINT

# This is the 3-d analogue of plbox().

pltclcmd plbox3 void
xopt	const char *
xlabel	const char *
xtick	PLFLT
nsubx	PLINT
yopt	const char *
ylabel	const char *
ytick	PLFLT
nsuby	PLINT
zopt	const char *
zlabel	const char *
ztick	PLFLT
nsubz	PLINT

# Calculate broken-down time from continuous time for current stream.

pltclcmd plbtime void
year PLINT&
month PLINT&
day PLINT&
hour PLINT&
min PLINT&
sec PLFLT&
ctime PLFLT

# Calculate world coordinates and subpage from relative device coordinates.

pltclcmd plcalc_world void
rx	PLFLT
ry	PLFLT
wx	PLFLT&
wy	PLFLT&
window	PLINT&

# Clear current subpage

pltclcmd plclear void

# Set color, map 0.  Argument is integer between 0 and 15.

pltclcmd plcol0 void
icol0	PLINT

# Set color, map 1.  Argument is a float between 0. and 1.

pltclcmd plcol1 void
col1	PLFLT

# Configure transformation between continuous and broken-down time (and
# vice versa) for current stream.

pltclcmd plconfigtime void
scale	PLFLT
offset1	PLFLT
offset2	PLFLT
ccontrol	PLINT
ifbtime_offset	PLINT
year	PLINT
month	PLINT
day	PLINT
hour	PLINT
min	PLINT
sec	PLFLT

# Copies state parameters from the reference stream to the current stream.

pltclcmd plcpstrm void
iplsr   PLINT
flags	PLINT

# Calculate continuous time from broken-down time for current stream.

pltclcmd plctime void
year PLINT
month PLINT
day PLINT
hour PLINT
min PLINT
sec PLFLT
ctime PLFLT&

# Converts input values from relative device coordinates to relative plot
# coordinates.

pltclcmd pldid2pc void
xmin	PLFLT&
ymin	PLFLT&
xmax	PLFLT&
ymax	PLFLT&

# Converts input values from relative plot coordinates to relative
# device coordinates.

pltclcmd pldip2dc void
xmin	PLFLT&
ymin	PLFLT&
xmax	PLFLT&
ymax	PLFLT&

# End a plotting session for all open streams.

pltclcmd plend void

# End a plotting session for the current stream only.

pltclcmd plend1 void

# Simple interface for defining viewport and window.

pltclcmd plenv void
xmin	PLFLT
xmax	PLFLT
ymin	PLFLT
ymax	PLFLT
just	PLINT
axis	PLINT

# Similar to plenv() above, but in multiplot mode does not advance the subpage,
# instead the current subpage is cleared.

pltclcmd plenv0 void
xmin	PLFLT
xmax	PLFLT
ymin	PLFLT
ymax	PLFLT
just	PLINT
axis	PLINT

# End current page.  Should only be used with plbop().

pltclcmd pleop void

# Plot horizontal error bars (xmin(i),y(i)) to (xmax(i),y(i))

pltclcmd plerrx void
n	PLINT
xmin	PLFLT *
xmax	PLFLT *
y	PLFLT *

# Plot vertical error bars (x,ymin(i)) to (x(i),ymax(i))

pltclcmd plerry void
n	PLINT
x	PLFLT *
ymin	PLFLT *
ymax	PLFLT *

# Advance to the next family file on the next new page

pltclcmd plfamadv void

# Pattern fills the polygon bounded by the input points.

pltclcmd plfill void
n	PLINT
x	PLFLT *
y	PLFLT *

# Pattern fills the 3d polygon bounded by the input points.

pltclcmd plfill3 void
n	PLINT
x	PLFLT *
y	PLFLT *
z	PLFLT *

# Flushes the output stream.  Use sparingly, if at all.

pltclcmd plflush void

# Sets the global font flag to 'ifont'.

pltclcmd plfont void
ifont	PLINT

# Load specified font set.

pltclcmd plfontld void
fnt	PLINT

# Get character default height and current (scaled) height.

pltclcmd plgchr void
def	PLFLT&
ht	PLFLT&

# Get the range for cmap1

pltclcmd plgcmap1_range void
min_color PLFLT&
max_color PLFLT&

# Returns 8 bit RGB values for given color from color map 0.

pltclcmd plgcol0 void
icol0	PLINT
r	PLINT&
g	PLINT&
b	PLINT&

# Returns 8 bit RGB values for given color from color map 0 and alpha value.

pltclcmd plgcol0a void
icol0	PLINT
r	PLINT&
g	PLINT&
b	PLINT&
a	PLFLT&

# Returns the background color by 8 bit RGB value.

pltclcmd plgcolbg void
r	PLINT&
g	PLINT&
b	PLINT&

# Returns the background color by 8 bit RGB value and alpha value.

pltclcmd plgcolbga void
r	PLINT&
g	PLINT&
b	PLINT&
a	PLFLT&

# Returns the current compression setting

pltclcmd plgcompression void
compression	PLINT&

# Get the device (keyword) name

pltclcmd plgdev void
devnam	char *

# Retrieve current window into device space.

pltclcmd plgdidev void
mar	PLFLT&
aspect	PLFLT&
jx	PLFLT&
jy	PLFLT&

# Get plot orientation .

pltclcmd plgdiori void
rot	PLFLT&

# Retrieve current window into plot space.

pltclcmd plgdiplt void
xmin	PLFLT&
ymin	PLFLT&
xmax	PLFLT&
ymax	PLFLT&

# Get the escape character for text strings.

pltclcmd plgesc void
esc	char&

# Get family file parameters.

pltclcmd plgfam void
fam	PLINT&
num	PLINT&
bmax	PLINT&

# Get the (FCI) font characterisation integer

pltclcmd plgfci void
fci	PLUNICODE&

# Get the output file name.

pltclcmd plgfnam void
fnam	char *

# Get the current font family, style and weight

pltclcmd plgfont void
family	PLINT&
style	PLINT&
weight	PLINT&

# Get the current run level.

pltclcmd plglevel void
level	PLINT&

# Get output device parameters.

pltclcmd plgpage void
xp	PLFLT&
yp	PLFLT&
xleng	PLINT&
yleng	PLINT&
xoff	PLINT&
yoff	PLINT&

# Switches to graphics screen.

pltclcmd plgra void

# Draw gradient in polygon.

pltclcmd plgradient void
n	PLINT
x	PLFLT *
y	PLFLT *
angle	PLFLT

# Get subpage boundaries in absolute coordinates.

pltclcmd plgspa void
xmin	PLFLT&
xmax	PLFLT&
ymin	PLFLT&
ymax	PLFLT&

# Get current stream number.
# NOTE: Providing this feature from Tcl will finally provide a
# reliable mechanism for binding a C++ plstream object to a Tk plframe
# widget.  Query the frame for it's stream id, then pass this to the
# C++ side and use it to initialize the plstream object.

pltclcmd plgstrm void
strm	PLINT&

# Get the current library version number.

pltclcmd plgver void
ver	char *

# Get viewport boundaries in normalized device coordinates.

pltclcmd plgvpd void
xmin    PLFLT&
xmax	PLFLT&
ymin	PLFLT&
ymax	PLFLT&

# Get viewport boundaries in world coordinates.

pltclcmd plgvpw void
xmin    PLFLT&
xmax	PLFLT&
ymin	PLFLT&
ymax	PLFLT&

# Get x axis labeling parameters.

pltclcmd plgxax void
digmax	PLINT&
digits	PLINT&

# Get y axis labeling parameters.

pltclcmd plgyax void
digmax	PLINT&
digits	PLINT&

# Get z axis labeling parameters.

pltclcmd plgzax void
digmax	PLINT&
digits	PLINT&

# Draws a histogram of n values of a variable in array data[0..n-1].
# pltclgen not able to handle Tcl Matrices yet.

pltclcmd plhist void
n	PLINT
data	PLFLT *
datmin	PLFLT
datmax	PLFLT
nbin	PLINT
oldwin	PLINT

# Set current color (map 0) by hue, lightness, and saturation.

#pltclcmd plhls void
#h	PLFLT
#l	PLFLT
#s	PLFLT

# Function to transform from HLS to RGB color space.

pltclcmd plhlsrgb void
h	PLFLT
l	PLFLT
s	PLFLT
r	PLFLT&
g	PLFLT&
b	PLFLT&

# Initializes PLplot, using preset or default options.

pltclcmd plinit void

# Draws a line segment from (x1, y1) to (x2, y2).

pltclcmd pljoin void
x1	PLFLT
y1	PLFLT
x2	PLFLT
y2	PLFLT

# Simple routine for labelling graphs.

pltclcmd pllab void
xlabel	const char *
ylabel	const char *
tlabel	const char *

# Set the 3D position of the light source.

pltclcmd pllightsource void
x	PLFLT
y	PLFLT
z	PLFLT

# Draws line segments connecting a series of points.
# The original tclAPI.c version of this had a defaultable n capability,
# which we don't have...

pltclcmd plline void
n	PLINT
x	PLFLT *
y	PLFLT *

# Draws a line in 3 space.
# pltclgen...

pltclcmd plline3 void
n	PLINT
x	PLFLT *
y	PLFLT *
z	PLFLT *

# Set line style.

pltclcmd pllsty void
lin	PLINT

# Creates a new stream and makes it the default.

pltclcmd plmkstrm void
strm	PLINT&

# Prints out "text" at specified position relative to viewport.

pltclcmd plmtex void
side	const char *
disp	PLFLT
pos	PLFLT
just	PLFLT
text	const char *

# Prints out "text" at specified position relative to viewport (3D).

pltclcmd plmtex3 void
side	const char *
disp	PLFLT
pos	PLFLT
just	PLFLT
text	const char *

# Set fill pattern directly.

pltclcmd plpat void
nlin	PLINT
inc	PLINT *
del	PLINT *

# Draw a line connecting two points, accounting for coordinate transforms

pltclcmd plpath void
n       PLINT
x1      PLFLT
y1      PLFLT
x2      PLFLT
y2      PLFLT

# Plots array y against x for n points using ASCII code "code".
# The original tclAPI.c version of this had a defaultable n capability,
# which we don't have...

pltclcmd plpoin void
n	PLINT
x	PLFLT *
y	PLFLT *
code	PLINT

# Draws a series of points in 3 space.

pltclcmd plpoin3 void
n	PLINT
x	PLFLT *
y	PLFLT *
z	PLFLT *
code	PLINT

# Draws a polygon in 3 space.

pltclcmd plpoly3 void
n	PLINT
x	PLFLT *
y	PLFLT *
z	PLFLT *
draw	PLINT *
ifcc	PLINT

# Set the floating point precision (in number of places) in numeric labels.

pltclcmd plprec void
setp	PLINT
prec	PLINT

# Set fill pattern, using one of the predefined patterns.

pltclcmd plpsty void
patt	PLINT

# Prints out "text" at world cooordinate (x,y).

pltclcmd plptex void
x	PLFLT
y	PLFLT
dx	PLFLT
dy	PLFLT
just	PLFLT
text	const char *

# Prints out "text" at world cooordinate (x,y,z).

pltclcmd plptex3 void
wx	PLFLT
wy	PLFLT
wz	PLFLT
dx	PLFLT
dy	PLFLT
dz	PLFLT
sx	PLFLT
sy	PLFLT
sz	PLFLT
just	PLFLT
text	const char *

# Random number generator based on Mersenne Twister.
# Obtain real random number in range [0,1].
#
#pltclcmd plrandd PLFLT
# (AM: does not work, no value return!)

# Replays contents of plot buffer to current device/file.

pltclcmd plreplot void

# Set line color by red, green, blue from  0. to 1.

#pltclcmd plrgb void
#r	PLFLT
#g	PLFLT
#b	PLFLT

# Set line color by 8 bit RGB values.

#pltclcmd plrgb1 void
#r	PLINT
#g	PLINT
#b	PLINT

# Function to transform from RGB to HLS color space.

pltclcmd plrgbhls void
r	PLFLT
g	PLFLT
b	PLFLT
h	PLFLT&
l	PLFLT&
s	PLFLT&

# Set character height.

pltclcmd plschr void
def	PLFLT
scale	PLFLT

# Set color map 0 colors by 8 bit RGB values.

pltclcmd plscmap0 void
r	PLINT *
g	PLINT *
b	PLINT *
ncol0	PLINT

# Set color map 0 colors by 8 bit RGB values and alpha values.

pltclcmd plscmap0a void
r	PLINT *
g	PLINT *
b	PLINT *
a	PLFLT *
ncol0	PLINT

# Set number of colors in cmap 0.

pltclcmd plscmap0n void
ncol0	PLINT

# Set color map 1 colors by 8 bit RGB values.

pltclcmd plscmap1 void
r	PLINT *
g	PLINT *
b	PLINT *
ncol1	PLINT

# Set color map 1 colors by 8 bit RGB values and alpha values.

pltclcmd plscmap1a void
r	PLINT *
g	PLINT *
b	PLINT *
a	PLFLT *
ncol1	PLINT

# Set color map 1 colors using a piece-wise linear relationship between
# intensity [0,1] (cmap 1 index) and position in HLS or RGB color space.

pltclcmd plscmap1l void
itype		PLINT
npts		PLINT
intensity	PLFLT *
coord1		PLFLT *
coord2		PLFLT *
coord3		PLFLT *
alt_hue_path		PLINT *

# Set color map 1 colors using a piece-wise linear relationship between
# intensity [0,1] (cmap 1 index) and position in HLS or RGB color space.
# Will also linearly interpolate alpha values.

pltclcmd plscmap1la void
itype		PLINT
npts		PLINT
intensity	PLFLT *
coord1		PLFLT *
coord2		PLFLT *
coord3		PLFLT *
a		PLFLT *
alt_hue_path		PLINT *

# Set number of colors in cmap 1.

pltclcmd plscmap1n void
ncol1	PLINT

# Set the range for cmap1

pltclcmd plscmap1_range void
min_color PLFLT
max_color PLFLT


# Set a given color from color map 0 by 8 bit RGB value.

pltclcmd plscol0 void
icol0	PLINT
r	PLINT
g	PLINT
b	PLINT

# Set a given color from color map 0 by 8 bit RGB value and alpha value.

pltclcmd plscol0a void
icol0	PLINT
r	PLINT
g	PLINT
b	PLINT
a	PLFLT

# Set the background color by 8 bit RGB value.

pltclcmd plscolbg void
r	PLINT
g	PLINT
b	PLINT

# Set the background color by 8 bit RGB value and alpha value.

pltclcmd plscolbga void
r	PLINT
g	PLINT
b	PLINT
a	PLFLT

# Used to globally turn color output on/off.

pltclcmd plscolor void
color	PLINT

# Set the compression level.

pltclcmd plscompression void
compression	PLINT

# Set the device (keyword) name

pltclcmd plsdev void
devnam	const char *

# Set window into device space using margin, aspect ratio, and
# justification.

pltclcmd plsdidev void
mar	PLFLT
aspect	PLFLT
jx	PLFLT
jy	PLFLT

# Set up transformation from metafile coordinates.

pltclcmd plsdimap void
dimxmin	PLINT
dimxmax	PLINT
dimymin	PLINT
dimymax	PLINT
dimxpmm	PLFLT
dimypmm	PLFLT

# Set plot orientation, specifying rotation in units of pi/2.

pltclcmd plsdiori void
rot	PLFLT

# Set window into plot space.

pltclcmd plsdiplt void
xmin	PLFLT
ymin	PLFLT
xmax	PLFLT
ymax	PLFLT

# Set window into plot space incrementally (zoom).

pltclcmd plsdiplz void
xmin	PLFLT
ymin	PLFLT
xmax	PLFLT
ymax	PLFLT

# Set seed for internal random number generator

pltclcmd plseed void
s	unsigned int


# Set the escape character for text strings.

pltclcmd plsesc void
esc	char

# Set family file parameters

pltclcmd plsfam void
fam	PLINT
num	PLINT
bmax	PLINT

# Set FCI (font characterization integer)

pltclcmd plsfci void
fci	PLUNICODE

# Set the output file name.

pltclcmd plsfnam void
fnam	const char *

# Set the current font family, style and weight

pltclcmd plsfont void
family	PLINT
style	PLINT
weight	PLINT

# Set up lengths of major tick marks.

pltclcmd plsmaj void
def	PLFLT
scale	PLFLT

# Set up lengths of minor tick marks.

pltclcmd plsmin void
def	PLFLT
scale	PLFLT

# Set orientation.  Must be done before calling plinit.

pltclcmd plsori void
ori	PLINT

# Set output device parameters.  Usually ignored by the driver.

pltclcmd plspage void
xp	PLFLT
yp	PLFLT
xleng	PLINT
yleng	PLINT
xoff	PLINT
yoff	PLINT

# Set color map 0 using a palette file

pltclcmd plspal0 void
filename	const char *

# Set color map 1 using a palette file

pltclcmd plspal1 void
filename	const char *
interpolate	PLINT

# Set the pause (on end-of-page) status.

pltclcmd plspause void
paus	PLINT

# Set stream number.

pltclcmd plsstrm void
strm	PLINT

# Set the number of subwindows in x and y.

pltclcmd plssub void
nx	PLINT
ny	PLINT

# Set symbol height.

pltclcmd plssym void
def	PLFLT
scale	PLFLT

# Initialize PLplot, passing in the windows/page settings.

pltclcmd plstar void
nx	PLINT
ny	PLINT

# Initialize PLplot, passing the device name and windows/page settings.

pltclcmd plstart void
devname 	const char *
nx		PLINT
ny		PLINT

# Plot the same string at a series of locations (x(i),y(i))

pltclcmd plstring void
n	PLINT
x	PLFLT *
y	PLFLT *
string	const char *

# Plot the same string at a series of 3D locations (x(i),y(i),z(i))

pltclcmd plstring3 void
n	PLINT
x	PLFLT *
y	PLFLT *
z	PLFLT *
string	const char *

# Add data to the strip chart

pltclcmd plstripa void
id		PLINT
pen		PLINT
x		PLFLT
y		PLFLT

# Destroy the strip chart

pltclcmd plstripd void
id		PLINT

# Set up a new line style.

pltclcmd plstyl void
nms	PLINT
mark	PLINT *
space	PLINT *

# Sets the edges of the viewport to the specified absolute coordinates.

pltclcmd plsvpa void
xmin	PLFLT
xmax	PLFLT
ymin	PLFLT
ymax	PLFLT

# Set x axis labeling parameters.

pltclcmd plsxax void
digmax	PLINT
digits	PLINT

# Set y axis labeling parameters.

pltclcmd plsyax void
digmax	PLINT	Def: 0
digits	PLINT	Def: 0

# Plots array y against x for n points using Hershey symbol "code".
# The original tclAPI.c version of this had a defaultable n capability,
# which we don't have...

pltclcmd plsym void
n	PLINT
x	PLFLT *
y	PLFLT *
code	PLINT

# Set z axis labeling parameters.

pltclcmd plszax void
digmax	PLINT
digits	PLINT

# Switches to text screen.

pltclcmd pltext void

# Set the format for date / time labels.

pltclcmd pltimefmt void
fmt	const char *

# Sets the edges of the viewport with the given aspect ratio, leaving
# room for labels.

pltclcmd plvasp void
aspect	PLFLT

# Creates the largest viewport of the specified aspect ratio that fits
# within the specified normalized subpage coordinates.

pltclcmd plvpas void
xmin	PLFLT
xmax	PLFLT
ymin	PLFLT
ymax	PLFLT
aspect	PLFLT

# Creates a viewport with the specified normalized subpage coordinates.

pltclcmd plvpor void
xmin	PLFLT
xmax	PLFLT
ymin	PLFLT
ymax	PLFLT

# Defines a "standard" viewport with seven character heights for the
# left margin and four character heights everywhere else.

pltclcmd plvsta void

# Set up a window for three-dimensional plotting.

pltclcmd plw3d void
basex	PLFLT
basey	PLFLT
height	PLFLT
xmin0	PLFLT
xmax0	PLFLT
ymin0	PLFLT
ymax0	PLFLT
zmin0	PLFLT
zmax0	PLFLT
alt	PLFLT
az	PLFLT

# Set pen width.

pltclcmd plwidth void
width	PLFLT

# Set up world coordinates of the viewport boundaries (2d plots).

pltclcmd plwind void
xmin	PLFLT
xmax	PLFLT
ymin	PLFLT
ymax	PLFLT

# Enter xor mode (mod != 0) or leave it (mod = 0)

pltclcmd plxormod void
mod PLINT
st  PLINT&

###############################################################################
# The rest are kept in as reminders to how Tcl API might be improved

# Draws a contour plot from data in f(nx,ny).  Is just a front-end to
# plfcont, with a particular choice for f2eval and f2eval_data.

# void
# c_plcont(PLFLT **f, PLINT nx, PLINT ny, PLINT kx, PLINT lx,
# 	 PLINT ky, PLINT ly, PLFLT *clevel, PLINT nlevel,
# 	 void (*pltr) (PLFLT, PLFLT, PLFLT *, PLFLT *, PLPointer),
# 	 PLPointer pltr_data);

# Draws a contour plot using the function evaluator f2eval and data stored
# by way of the f2eval_data pointer.  This allows arbitrary organizations
# of 2d array data to be used.

# void
# plfcont(PLFLT (*f2eval) (PLINT, PLINT, PLPointer),
# 	PLPointer f2eval_data,
# 	PLINT nx, PLINT ny, PLINT kx, PLINT lx,
# 	PLINT ky, PLINT ly, PLFLT *clevel, PLINT nlevel,
# 	void (*pltr) (PLFLT, PLFLT, PLFLT *, PLFLT *, PLPointer),
# 	PLPointer pltr_data);

# plot continental outline in world coordinates.

# void
# plmap(void (*mapform)(PLINT, PLFLT *, PLFLT *), char *type,
#       PLFLT minlong, PLFLT maxlong, PLFLT minlat, PLFLT maxlat);

# Plot the latitudes and longitudes on the background.

# void
# plmeridians(void (*mapform)(PLINT, PLFLT *, PLFLT *),
# 	    PLFLT dlong, PLFLT dlat,
# 	    PLFLT minlong, PLFLT maxlong, PLFLT minlat, PLFLT maxlat);

# Shade region.

# void
# c_plshade(PLFLT **a, PLINT nx, PLINT ny, const char **defined,
# 	  PLFLT left, PLFLT right, PLFLT bottom, PLFLT top,
# 	  PLFLT shade_min, PLFLT shade_max,
# 	  PLINT sh_cmap, PLFLT sh_color, PLINT sh_width,
# 	  PLINT min_color, PLINT min_width,
# 	  PLINT max_color, PLINT max_width,
# 	  void (*fill) (PLINT, PLFLT *, PLFLT *), PLINT rectangular,
# 	  void (*pltr) (PLFLT, PLFLT, PLFLT *, PLFLT *, PLPointer),
# 	  PLPointer pltr_data);

# void
# plshade1(PLFLT *a, PLINT nx, PLINT ny, const char *defined,
# 	 PLFLT left, PLFLT right, PLFLT bottom, PLFLT top,
# 	 PLFLT shade_min, PLFLT shade_max,
# 	 PLINT sh_cmap, PLFLT sh_color, PLINT sh_width,
# 	 PLINT min_color, PLINT min_width,
# 	 PLINT max_color, PLINT max_width,
# 	 void (*fill) (PLINT, PLFLT *, PLFLT *), PLINT rectangular,
# 	 void (*pltr) (PLFLT, PLFLT, PLFLT *, PLFLT *, PLPointer),
# 	 PLPointer pltr_data);

# void
# plfshade(PLFLT (*f2eval) (PLINT, PLINT, PLPointer),
# 	 PLPointer f2eval_data,
# 	 PLFLT (*c2eval) (PLINT, PLINT, PLPointer),
# 	 PLPointer c2eval_data,
# 	 PLINT nx, PLINT ny,
# 	 PLFLT left, PLFLT right, PLFLT bottom, PLFLT top,
# 	 PLFLT shade_min, PLFLT shade_max,
# 	 PLINT sh_cmap, PLFLT sh_color, PLINT sh_width,
# 	 PLINT min_color, PLINT min_width,
# 	 PLINT max_color, PLINT max_width,
# 	 void (*fill) (PLINT, PLFLT *, PLFLT *), PLINT rectangular,
# 	 void (*pltr) (PLFLT, PLFLT, PLFLT *, PLFLT *, PLPointer),
# 	 PLPointer pltr_data);

# Returns a list of file-oriented device names and their menu strings

# void
# plgFileDevs(char ***p_menustr, char ***p_devname, int *p_ndev);

# Set the function pointer for the keyboard event handler

# void
# plsKeyEH(void (*KeyEH) (PLGraphicsIn *, void *, int *), void *KeyEH_data);

# Set the function pointer for the (mouse) button event handler

# void
# plsButtonEH(void (*ButtonEH) (PLGraphicsIn *, void *, int *),
# 	    void *ButtonEH_data);

# Sets an optional user exit handler.

# void
# plsexit(int (*handler) (char *));

# Command line parsing utilities

# Clear internal option table info structure.

# void
# plClearOpts(void);

# Reset internal option table info structure.

# void
# plResetOpts(void);

# Merge user option table into internal info structure.

# int
# plMergeOpts(PLOptionTable *options, char *name, char **notes);

# Set the strings used in usage and syntax messages.

# void
# plSetUsage(char *program_string, char *usage_string);

# Process input strings, treating them as an option and argument pair.

# int
# plsetopt(char *opt, char *optarg);

# Print usage & syntax message.

# void
# plOptUsage(void);

# Set the output file pointer

# void
# plgfile(FILE **p_file);

# Get the output file pointer

# void
# plsfile(FILE *file);

# Front-end to driver escape function.

# void
# pl_cmd(PLINT op, void *ptr);

# Return full pathname for given file if executable

# int
# plFindName(char *p);

# Looks for the specified executable file according to usual search path.

# char *
# plFindCommand(char *fn);

# Gets search name for file by concatenating the dir, subdir, and file
# name, allocating memory as needed.

# void
# plGetName(char *dir, char *subdir, char *filename, char **filespec);

# Wait for graphics input event and translate to world coordinates

# int
# plGetCursor(PLGraphicsIn *gin);

# Translates relative device coordinates to world coordinates.

# int
# plTranslateCursor(PLGraphicsIn *gin);
