//----------------------------------*-C++-*----------------------------------//
// Geoffrey Furnish
// Sep 21 1994
//
// Copyright (C) 2004,2005  Andrew Ross
// Copyright (C) 2004-2014 Alan W. Irwin
//
// This file is part of PLplot.
//
// PLplot is free software; you can redistribute it and/or modify
// it under the terms of the GNU Library General Public License as published
// by the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// PLplot is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public License
// along with PLplot; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

//--------------------------------------------------------------------------
// @> Source file plstream.
//--------------------------------------------------------------------------

#include "plplot.h"
#include "plstream.h"

#include <iostream>

#ifdef PL_USE_NAMESPACE
using namespace std;
#endif

PLFLT Contourable_Data_evaluator( PLINT i, PLINT j, PLPointer p )
{
    const Contourable_Data& d = *(Contourable_Data *) p;

    return d( i, j );
}

void Coord_Xform_evaluator( PLFLT ox, PLFLT oy,
                            PLFLT *nx, PLFLT *ny, PLPointer p )
{
    const Coord_Xformer& xf = *(Coord_Xformer *) p;

    xf.xform( ox, oy, *nx, *ny );
}

// A specific case for handling transformation defined by 2-d grid vertex
// specification matrices.

cxx_pltr2::cxx_pltr2( Coord_2d& cx, Coord_2d& cy )
    : xg( cx ), yg( cy )
{
}

// Next routine copied and modified for C++ from PLPLOT 4.99d.

//--------------------------------------------------------------------------
// pltr2()
//
// Does linear interpolation from doubly dimensioned coord arrays
// (column dominant, as per normal C 2d arrays).
//
// This routine includes lots of checks for out of bounds.  This would
// occur occasionally due to some bugs in the contour plotter (now fixed).
// If an out of bounds coordinate is obtained, the boundary value is provided
// along with a warning.  These checks should stay since no harm is done if
// if everything works correctly.
//--------------------------------------------------------------------------

void cxx_pltr2::xform( PLFLT x, PLFLT y, PLFLT& tx, PLFLT& ty ) const
{
    int nx, ny;
    xg.elements( nx, ny );

    int   ul, ur, vl, vr;
    PLFLT du, dv;

    PLFLT xll, xlr, xrl, xrr;
    PLFLT yll, ylr, yrl, yrr;
    PLFLT xmin, xmax, ymin, ymax;

    ul = (int) x;
    ur = ul + 1;
    du = x - ul;

    vl = (int) y;
    vr = vl + 1;
    dv = y - vl;

    xmin = 0;
    xmax = nx - 1;
    ymin = 0;
    ymax = ny - 1;

    if ( x < xmin || x > xmax || y < ymin || y > ymax )
    {
        cerr << "cxx_pltr2::xform, Invalid coordinates\n";

        if ( x < xmin )
        {
            if ( y < ymin )
            {
                tx = xg( 0, 0 );
                ty = yg( 0, 0 );
            }
            else if ( y > ymax )
            {
                tx = xg( 0, ny - 1 );
                ty = yg( 0, ny - 1 );
            }
            else
            {
                xll = xg( 0, vl );
                yll = yg( 0, vl );
                xlr = xg( 0, vr );
                ylr = yg( 0, vr );

                tx = xll * ( 1 - dv ) + xlr * ( dv );
                ty = yll * ( 1 - dv ) + ylr * ( dv );
            }
        }
        else if ( x > xmax )
        {
            if ( y < ymin )
            {
                tx = xg( nx - 1, 0 );
                ty = yg( nx - 1, 0 );
            }
            else if ( y > ymax )
            {
                tx = xg( nx - 1, ny - 1 );
                ty = yg( nx - 1, ny - 1 );
            }
            else
            {
                xll = xg( nx - 1, vl );
                yll = yg( nx - 1, vl );
                xlr = xg( nx - 1, vr );
                ylr = yg( nx - 1, vr );

                tx = xll * ( 1 - dv ) + xlr * ( dv );
                ty = yll * ( 1 - dv ) + ylr * ( dv );
            }
        }
        else
        {
            if ( y < ymin )
            {
                xll = xg( ul, 0 );
                xrl = xg( ur, 0 );
                yll = yg( ul, 0 );
                yrl = yg( ur, 0 );

                tx = xll * ( 1 - du ) + xrl * ( du );
                ty = yll * ( 1 - du ) + yrl * ( du );
            }
            else if ( y > ymax )
            {
                xlr = xg( ul, ny - 1 );
                xrr = xg( ur, ny - 1 );
                ylr = yg( ul, ny - 1 );
                yrr = yg( ur, ny - 1 );

                tx = xlr * ( 1 - du ) + xrr * ( du );
                ty = ylr * ( 1 - du ) + yrr * ( du );
            }
        }
    }

// Normal case.
// Look up coordinates in row-dominant array.
// Have to handle right boundary specially -- if at the edge, we'd
// better not reference the out of bounds point.

    else
    {
        xll = xg( ul, vl );
        yll = yg( ul, vl );

// ur is out of bounds

        if ( ur == nx && vr < ny )
        {
            xlr = xg( ul, vr );
            ylr = yg( ul, vr );

            tx = xll * ( 1 - dv ) + xlr * ( dv );
            ty = yll * ( 1 - dv ) + ylr * ( dv );
        }

// vr is out of bounds

        else if ( ur < nx && vr == ny )
        {
            xrl = xg( ur, vl );
            yrl = yg( ur, vl );

            tx = xll * ( 1 - du ) + xrl * ( du );
            ty = yll * ( 1 - du ) + yrl * ( du );
        }

// both ur and vr are out of bounds

        else if ( ur == nx && vr == ny )
        {
            tx = xll;
            ty = yll;
        }

// everything in bounds

        else
        {
            xrl = xg( ur, vl );
            xlr = xg( ul, vr );
            xrr = xg( ur, vr );

            yrl = yg( ur, vl );
            ylr = yg( ul, vr );
            yrr = yg( ur, vr );

            tx = xll * ( 1 - du ) * ( 1 - dv ) + xlr * ( 1 - du ) * ( dv ) +
                 xrl * ( du ) * ( 1 - dv ) + xrr * ( du ) * ( dv );

            ty = yll * ( 1 - du ) * ( 1 - dv ) + ylr * ( 1 - du ) * ( dv ) +
                 yrl * ( du ) * ( 1 - dv ) + yrr * ( du ) * ( dv );
        }
    }
}

//Callbacks

// Callback for plfill. This will just call the C plfill function

void plcallback::fill( PLINT n, const PLFLT *x, const PLFLT *y )
{
    plfill( n, x, y );
}

// Transformation routines

// Identity transformation.

void plcallback::tr0( PLFLT x, PLFLT y, PLFLT *tx, PLFLT *ty,
                      PLPointer pltr_data )
{
    pltr0( x, y, tx, ty, pltr_data );
}

// Does linear interpolation from singly dimensioned coord arrays.

void plcallback::tr1( PLFLT x, PLFLT y, PLFLT *tx, PLFLT *ty,
                      PLPointer pltr_data )
{
    pltr1( x, y, tx, ty, pltr_data );
}

// Does linear interpolation from doubly dimensioned coord arrays
// (column dominant, as per normal C 2d arrays).

void plcallback::tr2( PLFLT x, PLFLT y, PLFLT *tx, PLFLT *ty,
                      PLPointer pltr_data )
{
    pltr2( x, y, tx, ty, pltr_data );
}

// Just like pltr2() but uses pointer arithmetic to get coordinates from
// 2d grid tables.

void plcallback::tr2p( PLFLT x, PLFLT y, PLFLT *tx, PLFLT *ty,
                       PLPointer pltr_data )
{
    pltr2p( x, y, tx, ty, pltr_data );
}

PLINT plstream::active_streams = 0;

plstream::plstream()
{
    ::c_plmkstrm( &stream );
    //::c_plinit();
    active_streams++;
}

plstream::plstream ( PLS::stream_id sid, PLINT strm /*=0*/ )
{
    switch ( sid )
    {
    case PLS::Next:
//	throw( "plstream ctor option not implemented." );
        break;

    case PLS::Current:
        ::c_plgstrm( &stream );
        break;

    case PLS::Specific:
        stream = strm;
        break;

    default:
//	throw( "plstream ctor option not implemented." );
        break;
    }
}

plstream::plstream( PLINT nx, PLINT ny, const char *driver, const char *file )
{
    ::c_plmkstrm( &stream );

    if ( driver )
        ::c_plsdev( driver );
    if ( file )
        ::c_plsfnam( file );
    ::c_plssub( nx, ny );
    //::c_plinit();

    active_streams++;
}

plstream::plstream( PLINT nx, PLINT ny, PLINT r, PLINT g, PLINT b,
                    const char *driver, const char *file )
{
    ::c_plmkstrm( &stream );

    if ( driver )
        ::c_plsdev( driver );
    if ( file )
        ::c_plsfnam( file );
    ::c_plssub( nx, ny );
    ::c_plscolbg( r, g, b );
    //::c_plinit();

    active_streams++;
}

plstream::~plstream()
{
    ::c_plsstrm( stream );
    ::c_plend1();

    active_streams--;
    if ( !active_streams )
        ::c_plend();
}

#define BONZAI    { throw "plstream method not implemented."; }

// C routines callable from stub routines come first

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

void
plstream::adv( PLINT page )
{
    set_stream();

    pladv( page );
}

void
plstream::arc( PLFLT x, PLFLT y, PLFLT a, PLFLT b, PLFLT angle1, PLFLT angle2,
               PLFLT rotate, PLBOOL fill )
{
    set_stream();

    plarc( x, y, a, b, angle1, angle2, rotate, fill );
}

void
plstream::vect( const PLFLT * const *u, const PLFLT * const *v, PLINT nx, PLINT ny, PLFLT scale,
                void ( *pltr )( PLFLT, PLFLT, PLFLT *, PLFLT *, PLPointer ),
                PLPointer pltr_data )
{
    set_stream();

    plvect( u, v, nx, ny, scale, pltr, pltr_data );
}

void
plstream::svect( const PLFLT *arrow_x, const PLFLT *arrow_y, PLINT npts, bool fill )
{
    set_stream();

    plsvect( arrow_x, arrow_y, npts, (PLBOOL) fill );
}

// Deprecated version using PLINT instead of bool
void
plstream::svect( const PLFLT *arrow_x, const PLFLT *arrow_y, PLINT npts, PLINT fill )
{
    set_stream();

    plsvect( arrow_x, arrow_y, npts, (PLBOOL) fill );
}

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

void
plstream::axes( PLFLT x0, PLFLT y0, const char *xopt, PLFLT xtick, PLINT nxsub,
                const char *yopt, PLFLT ytick, PLINT nysub )
{
    set_stream();

    plaxes( x0, y0, xopt, xtick, nxsub, yopt, ytick, nysub );
}

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

void plstream::bin( PLINT nbin, const PLFLT *x, const PLFLT *y, PLINT center )
{
    set_stream();

    plbin( nbin, x, y, center );
}

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

void plstream::bop()
{
    set_stream();

    plbop();
}

// This draws a box around the current viewport.

void plstream::box( const char *xopt, PLFLT xtick, PLINT nxsub,
                    const char *yopt, PLFLT ytick, PLINT nysub )
{
    set_stream();

    plbox( xopt, xtick, nxsub, yopt, ytick, nysub );
}


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

void
plstream::box3( const char *xopt, const char *xlabel, PLFLT xtick, PLINT nsubx,
                const char *yopt, const char *ylabel, PLFLT ytick, PLINT nsuby,
                const char *zopt, const char *zlabel, PLFLT ztick, PLINT nsubz )
{
    set_stream();

    plbox3( xopt, xlabel, xtick, nsubx,
        yopt, ylabel, ytick, nsuby,
        zopt, zlabel, ztick, nsubz );
}

// Calculate broken-down time from continuous time for current stream.
void plstream::btime( PLINT & year, PLINT & month, PLINT & day, PLINT & hour,
                      PLINT & min, PLFLT & sec, PLFLT ctime )
{
    set_stream();

    plbtime( &year, &month, &day, &hour, &min, &sec, ctime );
}

// Calculate world coordinates and subpage from relative device coordinates.

void plstream::calc_world( PLFLT rx, PLFLT ry, PLFLT & wx, PLFLT & wy,
                           PLINT & window )
{
    set_stream();

    plcalc_world( rx, ry, &wx, &wy, &window );
}

// Clear the current subpage.

void plstream::clear()
{
    set_stream();

    plclear();
}

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

void plstream::col0( PLINT icol0 )
{
    set_stream();

    plcol0( icol0 );
}

// Set the color using a descriptive name.  Replaces plcol0().

void plstream::col( PLcolor c )
{
    set_stream();

    plcol0( (int) c );
}

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

void plstream::col1( PLFLT c )
{
    set_stream();

    plcol1( c );
}

// Old (incorrect) version retained only for compatibility
void plstream::col( PLFLT c )
{
    set_stream();

    cerr <<
        "plstream::col(PLFLT c) : function deprecated. Use plstream::col1(PLFLT c) instead"
         << endl;

    plcol1( c );
}

// Configure transformation between continuous and broken-down time (and
// vice versa) for current stream.
void plstream::configtime( PLFLT scale, PLFLT offset1, PLFLT offset2,
                           PLINT ccontrol, PLBOOL ifbtime_offset, PLINT year,
                           PLINT month, PLINT day, PLINT hour, PLINT min,
                           PLFLT sec )
{
    set_stream();

    plconfigtime( scale, offset1, offset2, ccontrol, ifbtime_offset, year,
        month, day, hour, min, sec );
}



// 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 plstream::cont( const PLFLT * const *f, PLINT nx, PLINT ny, PLINT kx, PLINT lx,
                     PLINT ky, PLINT ly, const PLFLT *clevel, PLINT nlevel,
                     void ( *pltr )( PLFLT, PLFLT, PLFLT *, PLFLT *, PLPointer ),
                     PLPointer pltr_data )
{
    set_stream();

    plcont( f, nx, ny, kx, lx, ky, ly, clevel, nlevel,
        pltr, 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 plstream::fcont( PLFLT ( *f2eval )( PLINT, PLINT, PLPointer ),
                      PLPointer f2eval_data,
                      PLINT nx, PLINT ny, PLINT kx, PLINT lx,
                      PLINT ky, PLINT ly, const PLFLT *clevel, PLINT nlevel,
                      void ( *pltr )( PLFLT, PLFLT, PLFLT *, PLFLT *, PLPointer ),
                      PLPointer pltr_data )
{
    set_stream();

    plfcont( f2eval, f2eval_data,
        nx, ny, kx, lx, ky, ly, clevel, nlevel,
        pltr, pltr_data );
}

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

void plstream::cpstrm( plstream & pls, bool flags )
{
    set_stream();

    plcpstrm( pls.stream, (PLBOOL) flags );
}

// Deprecated version using PLINT not bool
void plstream::cpstrm( plstream & pls, PLINT flags )
{
    set_stream();

    plcpstrm( pls.stream, (PLBOOL) flags );
}

// Calculate continuous time from broken-down time for current stream.
void plstream::ctime( PLINT year, PLINT month, PLINT day, PLINT hour, PLINT min,
                      PLFLT sec, PLFLT & ctime )
{
    set_stream();

    plctime( year, month, day, hour, min, sec, &ctime );
}

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

void plstream::did2pc( PLFLT & xmin, PLFLT & ymin, PLFLT & xmax, PLFLT & ymax )
{
    set_stream();

    pldid2pc( &xmin, &ymin, &xmax, &ymax );
}

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

void plstream::dip2dc( PLFLT & xmin, PLFLT & ymin, PLFLT & xmax, PLFLT & ymax )
{
    set_stream();

    pldip2dc( &xmin, &ymin, &xmax, &ymax );
}

// These shouldn't be needed, are supposed to be handled by ctor/dtor
// semantics of the plstream object.

// End a plotting session for all open streams.

// void plstream::end()
// {
//     set_stream();

//     plend();
// }

// End a plotting session for the current stream only.

// void plstream::end1()
// {
//     set_stream();

//     plend1();
// }

// Simple interface for defining viewport and window.

void plstream::env( PLFLT xmin, PLFLT xmax, PLFLT ymin, PLFLT ymax,
                    PLINT just, PLINT axis )
{
    set_stream();

    plenv( xmin, xmax, ymin, ymax, just, axis );
}

// Similar to env() above, but in multiplot mode does not advance
// the subpage, instead the current subpage is cleared

void plstream::env0( PLFLT xmin, PLFLT xmax, PLFLT ymin, PLFLT ymax,
                     PLINT just, PLINT axis )
{
    set_stream();

    plenv0( xmin, xmax, ymin, ymax, just, axis );
}

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

void plstream::eop()
{
    set_stream();

    pleop();
}

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

void plstream::errx( PLINT n, const PLFLT *xmin, const PLFLT *xmax, const PLFLT *y )
{
    set_stream();

    plerrx( n, xmin, xmax, y );
}

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

void plstream::erry( PLINT n, const PLFLT *x, const PLFLT *ymin, const PLFLT *ymax )
{
    set_stream();

    plerry( n, x, ymin, ymax );
}

// Advance to the next family file on the next new page.

void plstream::famadv()
{
    set_stream();

    plfamadv();
}

// Pattern fills the polygon bounded by the input points.

void plstream::fill( PLINT n, const PLFLT *x, const PLFLT *y )
{
    set_stream();

    plfill( n, x, y );
}

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

void plstream::fill3( PLINT n, const PLFLT *x, const PLFLT *y, const PLFLT *z )
{
    set_stream();

    plfill3( n, x, y, z );
}

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

void plstream::flush()
{
    set_stream();

    ::c_plflush();
}

// Sets the global font flag to 'ifont'.

void plstream::font( PLINT ifont )
{
    set_stream();

    plfont( ifont );
}

// Load specified font set.

void plstream::fontld( PLINT fnt )
{
    set_stream();

    plfontld( fnt );
}

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

void plstream::gchr( PLFLT & p_def, PLFLT & p_ht )
{
    set_stream();

    plgchr( &p_def, &p_ht );
}

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

void plstream::gcol0( PLINT icol0, PLINT & r, PLINT & g, PLINT & b )
{
    set_stream();

    plgcol0( icol0, &r, &g, &b );
}

// Returns 8 bit RGB values + alpha value for given color from color map 0.

void plstream::gcol0a( PLINT icol0, PLINT & r, PLINT & g, PLINT & b, PLFLT & a )
{
    set_stream();

    plgcol0a( icol0, &r, &g, &b, &a );
}

// Returns the background color by 8 bit RGB value.

void plstream::gcolbg( PLINT & r, PLINT & g, PLINT & b )
{
    set_stream();

    plgcolbg( &r, &g, &b );
}

// Returns the background color by 8 bit RGB value + alpha value.

void plstream::gcolbga( PLINT & r, PLINT & g, PLINT & b, PLFLT & a )
{
    set_stream();

    plgcolbga( &r, &g, &b, &a );
}

// Returns the current compression setting

void plstream::gcompression( PLINT & compression )
{
    set_stream();

    plgcompression( &compression );
}

// Retrieve current window into device space.

void plstream::gdidev( PLFLT & mar, PLFLT & aspect, PLFLT & jx, PLFLT & jy )
{
    set_stream();

    plgdidev( &mar, &aspect, &jx, &jy );
}

// Get plot orientation.

void plstream::gdiori( PLFLT & rot )
{
    set_stream();

    plgdiori( &rot );
}

// Retrieve current window into plot space.

void plstream::gdiplt( PLFLT & xmin, PLFLT & ymin, PLFLT & xmax, PLFLT & ymax )
{
    set_stream();

    plgdiplt( &xmin, &ymin, &xmax, &ymax );
}

// Get FCI (font characterization integer)

void plstream::gfci( PLUNICODE & pfci )
{
    set_stream();

    plgfci( &pfci );
}

// Get family file parameters.

void plstream::gfam( PLINT & fam, PLINT & num, PLINT & bmax )
{
    set_stream();

    plgfam( &fam, &num, &bmax );
}

// Get the (current) output file name.  Must be preallocated to >80 bytes.

void plstream::gfnam( char *fnam )
{
    set_stream();

    plgfnam( fnam );
}

// Get the current font family, style and weight

void plstream::gfont( PLINT & family, PLINT & style, PLINT & weight )
{
    set_stream();

    plgfont( &family, &style, &weight );
}

// Get current run level.

void plstream::glevel( PLINT & level )
{
    set_stream();

    plglevel( &level );
}

// Get output device parameters.

void plstream::gpage( PLFLT & xp, PLFLT & yp, PLINT & xleng, PLINT & yleng,
                      PLINT & xoff, PLINT & yoff )
{
    set_stream();

    plgpage( &xp, &yp, &xleng, &yleng, &xoff, &yoff );
}

// Switches to graphics screen.

void plstream::gra()
{
    set_stream();

    plgra();
}


// Draw gradient in polygon.

void plstream::gradient( PLINT n, const PLFLT *x, const PLFLT *y, PLFLT angle )
{
    set_stream();

    plgradient( n, x, y, angle );
}

// grid irregularly sampled data
void plstream::griddata( const PLFLT *x, const PLFLT *y, const PLFLT *z, PLINT npts,
                         const PLFLT *xg, PLINT nptsx, const PLFLT *yg, PLINT nptsy,
                         PLFLT **zg, PLINT type, PLFLT data )
{
    set_stream();

    plgriddata( x, y, z, npts, xg, nptsx, yg, nptsy, zg, type, data );
}

// Get subpage boundaries in absolute coordinates.

void plstream::gspa( PLFLT & xmin, PLFLT & xmax, PLFLT & ymin, PLFLT & ymax )
{
    set_stream();

    plgspa( &xmin, &xmax, &ymin, &ymax );
}

// This shouldn't be needed in this model.

// Get current stream number.

// void plstream::gstrm( PLINT *p_strm )
// {
//     set_stream();

//     plgstrm(p_strm);
// }

// Get the current library version number.

void plstream::gver( char *p_ver )
{
    set_stream();

    plgver( p_ver );
}

// Get viewport window in normalized world coordinates

void plstream::gvpd( PLFLT & xmin, PLFLT & xmax, PLFLT & ymin, PLFLT & ymax )
{
    set_stream();

    plgvpd( &xmin, &xmax, &ymin, &ymax );
}

// Get viewport window in world coordinates

void plstream::gvpw( PLFLT & xmin, PLFLT & xmax, PLFLT & ymin, PLFLT & ymax )
{
    set_stream();

    plgvpw( &xmin, &xmax, &ymin, &ymax );
}

// Get x axis labeling parameters.

void plstream::gxax( PLINT & digmax, PLINT & digits )
{
    set_stream();

    plgxax( &digmax, &digits );
}

// Get y axis labeling parameters.

void plstream::gyax( PLINT & digmax, PLINT & digits )
{
    set_stream();

    plgyax( &digmax, &digits );
}

// Get z axis labeling parameters

void plstream::gzax( PLINT & digmax, PLINT & digits )
{
    set_stream();

    plgzax( &digmax, &digits );
}

// Draws a histogram of n values of a variable in array data[0..n-1]

void plstream::hist( PLINT n, const PLFLT *data, PLFLT datmin, PLFLT datmax,
                     PLINT nbin, PLINT oldwin )
{
    set_stream();

    plhist( n, data, datmin, datmax, nbin, oldwin );
}

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

#ifdef PL_DEPRECATED
void plstream::hls( PLFLT h, PLFLT l, PLFLT s )
{
    set_stream();

    plhls( h, l, s );
}
#endif // PL_DEPRECATED

// Initializes PLplot, using preset or default options

void plstream::init()
{
    set_stream();

    plinit();

    plgstrm( &stream );

    // This is only set in the constructor.
    //active_streams++;
}

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

void plstream::join( PLFLT x1, PLFLT y1, PLFLT x2, PLFLT y2 )
{
    set_stream();

    pljoin( x1, y1, x2, y2 );
}

// Simple routine for labelling graphs.

void plstream::lab( const char *xlabel, const char *ylabel,
                    const char *tlabel )
{
    set_stream();

    pllab( xlabel, ylabel, tlabel );
}

// Routine for drawing line, symbol, or cmap0 legends

void plstream::legend( PLFLT *p_legend_width, PLFLT *p_legend_height,
                       PLINT opt, PLINT position, PLFLT x, PLFLT y, PLFLT plot_width,
                       PLINT bg_color, PLINT bb_color, PLINT bb_style,
                       PLINT nrow, PLINT ncolumn,
                       PLINT nlegend, const PLINT *opt_array,
                       PLFLT text_offset, PLFLT text_scale, PLFLT text_spacing,
                       PLFLT text_justification,
                       const PLINT *text_colors, const char * const *text,
                       const PLINT *box_colors, const PLINT *box_patterns,
                       const PLFLT *box_scales, const PLFLT *box_line_widths,
                       const PLINT *line_colors, const PLINT *line_styles,
                       const PLFLT *line_widths,
                       const PLINT *symbol_colors, const PLFLT *symbol_scales,
                       const PLINT *symbol_numbers, const char * const *symbols )
{
    set_stream();

    pllegend( p_legend_width, p_legend_height, opt, position, x, y, plot_width,
        bg_color, bb_color, bb_style, nrow, ncolumn, nlegend, opt_array,
        text_offset, text_scale, text_spacing, text_justification,
        text_colors, text, box_colors, box_patterns, box_scales,
        box_line_widths, line_colors, line_styles, line_widths,
        symbol_colors, symbol_scales, symbol_numbers, symbols );
}

void plstream::colorbar( PLFLT *p_colorbar_width, PLFLT *p_colorbar_height,
                         PLINT opt, PLINT position, PLFLT x, PLFLT y,
                         PLFLT x_length, PLFLT y_length,
                         PLINT bg_color, PLINT bb_color, PLINT bb_style,
                         PLFLT low_cap_color, PLFLT high_cap_color,
                         PLINT cont_color, PLFLT cont_width,
                         PLINT n_labels, PLINT *label_opts, const char * const *label,
                         PLINT n_axes, const char * const *axis_opts,
                         PLFLT *ticks, PLINT *sub_ticks,
                         PLINT *n_values, const PLFLT * const *values )
{
    set_stream();

    plcolorbar( p_colorbar_width, p_colorbar_height, opt, position, x, y,
        x_length, y_length, bg_color, bb_color, bb_style,
        low_cap_color, high_cap_color, cont_color, cont_width,
        n_labels, label_opts, label, n_axes, axis_opts,
        ticks, sub_ticks, n_values, values );
}


// Sets position of the light source

void plstream::lightsource( PLFLT x, PLFLT y, PLFLT z )
{
    set_stream();

    pllightsource( x, y, z );
}

// Draws line segments connecting a series of points.

void plstream::line( PLINT n, const PLFLT *x, const PLFLT *y )
{
    set_stream();

    plline( n, x, y );
}

// Draws a line in 3 space.

void plstream::line3( PLINT n, const PLFLT *x, const PLFLT *y, const PLFLT *z )
{
    set_stream();

    plline3( n, x, y, z );
}

// Set line style.

void plstream::lsty( PLINT lin )
{
    set_stream();

    pllsty( lin );
}

// Plot continental outline in world coordinates

void plstream::map( void ( *mapform )( PLINT, PLFLT *, PLFLT * ),
                    const char *name, PLFLT minx, PLFLT maxx,
                    PLFLT miny, PLFLT maxy )
{
    set_stream();

    plmap( mapform, name, minx, maxx, miny, maxy );
}

// Plot map lines

void plstream::mapline( void ( *mapform )( PLINT, PLFLT *, PLFLT * ), const char *name,
                        PLFLT minx, PLFLT maxx, PLFLT miny, PLFLT maxy,
                        const PLINT *plotentries, PLINT nplotentries )
{
    set_stream();

    plmapline( mapform, name, minx, maxx, miny, maxy, plotentries, nplotentries );
}

// Plot map points

void plstream::mapstring( void ( *mapform )( PLINT, PLFLT *, PLFLT * ),
                          const char *name, const char *string,
                          PLFLT minx, PLFLT maxx, PLFLT miny, PLFLT maxy,
                          const PLINT *plotentries, PLINT nplotentries )
{
    set_stream();

    plmapstring( mapform, name, string, minx, maxx, miny, maxy, plotentries, nplotentries );
}

// Plot map text

void plstream::maptex( void ( *mapform )( PLINT, PLFLT *, PLFLT * ),
                       const char *name, PLFLT dx, PLFLT dy, PLFLT just, const char *text,
                       PLFLT minx, PLFLT maxx, PLFLT miny, PLFLT maxy,
                       PLINT plotentry )
{
    set_stream();

    plmaptex( mapform, name, dx, dy, just, text, minx, maxx, miny, maxy, plotentry );
}

// Plot map fills

void plstream::mapfill( void ( *mapform )( PLINT, PLFLT *, PLFLT * ),
                        const char *name, PLFLT minx, PLFLT maxx, PLFLT miny,
                        PLFLT maxy, const PLINT *plotentries, PLINT nplotentries )
{
    set_stream();

    plmapfill( mapform, name, minx, maxx, miny, maxy, plotentries, nplotentries );
}

// Plot the latitudes and longitudes on the background.

void plstream::meridians( void ( *mapform )( PLINT, PLFLT *, PLFLT * ),
                          PLFLT dlong, PLFLT dlat,
                          PLFLT minlong, PLFLT maxlong,
                          PLFLT minlat, PLFLT maxlat )
{
    set_stream();

    plmeridians( mapform, dlong, dlat, minlong, maxlong, minlat,
        maxlat );
}

// Plots a mesh representation of the function z[x][y].

void plstream::mesh( const PLFLT *x, const PLFLT *y, const PLFLT * const *z, PLINT nx, PLINT ny,
                     PLINT opt )
{
    set_stream();

    plmesh( x, y, z, nx, ny, opt );
}

// Plots a mesh representation of the function z[x][y] with contour.

void plstream::meshc( const PLFLT *x, const PLFLT *y, const PLFLT * const *z, PLINT nx, PLINT ny,
                      PLINT opt, const PLFLT *clevel, PLINT nlevel )
{
    set_stream();

    plmeshc( x, y, z, nx, ny, opt, clevel, nlevel );
}

//  Creates a new stream and makes it the default.

// void plstream::mkstrm( PLINT *p_strm )
// {
//     set_stream();

//     plmkstrm(p_strm);
// }

// Prints out "text" at specified position relative to viewport

void plstream::mtex( const char *side, PLFLT disp, PLFLT pos, PLFLT just,
                     const char *text )
{
    set_stream();

    plmtex( side, disp, pos, just, text );
}

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

void plstream::mtex3( const char *side, PLFLT disp, PLFLT pos, PLFLT just,
                      const char *text )
{
    set_stream();

    plmtex3( side, disp, pos, just, text );
}

// Plots a 3-d shaded representation of the function z[x][y].

void plstream::surf3d( const PLFLT *x, const PLFLT *y, const PLFLT * const *z,
                       PLINT nx, PLINT ny, PLINT opt,
                       const PLFLT *clevel, PLINT nlevel )
{
    set_stream();

    plsurf3d( x, y, z, nx, ny, opt, clevel, nlevel );
}

// Plots a 3-d shaded representation of the function z[x][y] with
// y index limits

void plstream::surf3dl( const PLFLT *x, const PLFLT *y, const PLFLT * const *z,
                        PLINT nx, PLINT ny, PLINT opt,
                        const PLFLT *clevel, PLINT nlevel,
                        PLINT ixstart, PLINT ixn,
                        const PLINT *indexymin, const PLINT *indexymax )
{
    set_stream();

    plsurf3dl( x, y, z, nx, ny, opt, clevel, nlevel, ixstart, ixn,
        indexymin, indexymax );
}

// Plots a 3-d representation of the function z[x][y].

void plstream::plot3d( const PLFLT *x, const PLFLT *y, const PLFLT * const *z,
                       PLINT nx, PLINT ny, PLINT opt, bool side )
{
    set_stream();

    ::plot3d( x, y, z, nx, ny, opt, (PLBOOL) side );
}

// Deprecated version using PLINT not bool
void plstream::plot3d( const PLFLT *x, const PLFLT *y, const PLFLT * const *z,
                       PLINT nx, PLINT ny, PLINT opt, PLINT side )
{
    set_stream();

    ::plot3d( x, y, z, nx, ny, opt, (PLBOOL) side );
}

// Plots a 3-d representation of the function z[x][y] with contour.

void plstream::plot3dc( const PLFLT *x, const PLFLT *y, const PLFLT * const *z,
                        PLINT nx, PLINT ny, PLINT opt,
                        const PLFLT *clevel, PLINT nlevel )
{
    set_stream();

    ::plot3dc( x, y, z, nx, ny, opt, clevel, nlevel );
}

// Plots a 3-d representation of the function z[x][y] with contour
// and y index limits

void plstream::plot3dcl( const PLFLT *x, const PLFLT *y, const PLFLT * const *z,
                         PLINT nx, PLINT ny, PLINT opt,
                         const PLFLT *clevel, PLINT nlevel,
                         PLINT ixstart, PLINT ixn,
                         const PLINT *indexymin, const PLINT *indexymax )
{
    set_stream();

    ::plot3dcl( x, y, z, nx, ny, opt, clevel, nlevel, ixstart, ixn,
        indexymin, indexymax );
}

// Process options list using current options info.

int plstream::parseopts( int *p_argc, const char **argv, PLINT mode )
{
    set_stream();

    return ::plparseopts( p_argc, argv, mode );
}

// Set fill pattern directly.

void plstream::pat( PLINT nlin, const PLINT *inc, const PLINT *del )
{
    set_stream();

    plpat( nlin, inc, del );
}

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

void plstream::path( PLINT n, PLFLT x1, PLFLT y1, PLFLT x2, PLFLT y2 )
{
    set_stream();

    plpath( n, x1, y1, x2, y2 );
}

// Plots array y against x for n points using ASCII code "code".

void plstream::poin( PLINT n, const PLFLT *x, const PLFLT *y, PLINT code )
{
    set_stream();

    plpoin( n, x, y, code );
}

// Draws a series of points in 3 space.

void plstream::poin3( PLINT n, const PLFLT *x, const PLFLT *y, const PLFLT *z, PLINT code )
{
    set_stream();

    plpoin3( n, x, y, z, code );
}

// Draws a polygon in 3 space.

void plstream::poly3( PLINT n, const PLFLT *x, const PLFLT *y, const PLFLT *z,
                      const bool *draw, bool ifcc )
{
    PLBOOL *loc_draw = new PLBOOL[n - 1];
    for ( int i = 0; i < n - 1; i++ )
    {
        loc_draw[i] = (PLBOOL) draw[i];
    }

    set_stream();

    plpoly3( n, x, y, z, loc_draw, (PLBOOL) ifcc );

    delete [] loc_draw;
}

// Deprecated version using PLINT not bool
void plstream::poly3( PLINT n, const PLFLT *x, const PLFLT *y, const PLFLT *z,
                      const PLINT *draw, PLINT ifcc )
{
    PLBOOL *loc_draw = new PLBOOL[n - 1];
    for ( int i = 0; i < n - 1; i++ )
    {
        loc_draw[i] = (PLBOOL) draw[i];
    }

    set_stream();

    plpoly3( n, x, y, z, loc_draw, (PLBOOL) ifcc );

    delete [] loc_draw;
}

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

void plstream::prec( PLINT setp, PLINT prec )
{
    set_stream();

    plprec( setp, prec );
}

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

void plstream::psty( PLINT patt )
{
    set_stream();

    plpsty( patt );
}

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

void plstream::ptex( PLFLT x, PLFLT y, PLFLT dx, PLFLT dy, PLFLT just,
                     const char *text )
{
    set_stream();

    plptex( x, y, dx, dy, just, text );
}

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

void plstream::ptex3( PLFLT wx, PLFLT wy, PLFLT wz,
                      PLFLT dx, PLFLT dy, PLFLT dz,
                      PLFLT sx, PLFLT sy, PLFLT sz, PLFLT just,
                      const char *text )
{
    set_stream();

    plptex3( wx, wy, wz, dx, dy, dz, sx, sy, sz, just, text );
}

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

void plstream::replot()
{
    set_stream();

    plreplot();
}

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

#ifdef PL_DEPRECATED
void plstream::rgb( PLFLT r, PLFLT g, PLFLT b )
{
    set_stream();

    plrgb( r, g, b );
}
#endif // PL_DEPRECATED

// Set line color by 8 bit RGB values.

#ifdef PL_DEPRECATED
void plstream::rgb( PLINT r, PLINT g, PLINT b )
{
    set_stream();

    plrgb1( r, g, b );
}
#endif // PL_DEPRECATED

// Set character height.

void plstream::schr( PLFLT def, PLFLT scale )
{
    set_stream();

    plschr( def, scale );
}

// Set number of colors in cmap 0

void plstream::scmap0n( PLINT ncol0 )
{
    set_stream();

    plscmap0n( ncol0 );
}

// Set number of colors in cmap 1

void plstream::scmap1n( PLINT ncol1 )
{
    set_stream();

    plscmap1n( ncol1 );
}

// Set number of colors in cmap 1

void plstream::scmap1_range( PLFLT min_color, PLFLT max_color )
{
    set_stream();

    plscmap1_range( min_color, max_color );
}

// Set number of colors in cmap 1

void plstream::gcmap1_range( PLFLT & min_color, PLFLT & max_color )
{
    set_stream();

    plgcmap1_range( &min_color, &max_color );
}

// Set color map 0 colors by 8 bit RGB values

void plstream::scmap0( const PLINT *r, const PLINT *g, const PLINT *b, PLINT ncol0 )
{
    set_stream();

    plscmap0( r, g, b, ncol0 );
}

// Set color map 0 colors by 8 bit RGB values + alpha value

void plstream::scmap0a( const PLINT *r, const PLINT *g, const PLINT *b, const PLFLT *a, PLINT ncol0 )
{
    set_stream();

    plscmap0a( r, g, b, a, ncol0 );
}

// Set color map 1 colors by 8 bit RGB values

void plstream::scmap1( const PLINT *r, const PLINT *g, const PLINT *b, PLINT ncol1 )
{
    set_stream();

    plscmap1( r, g, b, ncol1 );
}

// Set color map 1 colors by 8 bit RGB values + alpha value

void plstream::scmap1a( const PLINT *r, const PLINT *g, const PLINT *b, const PLFLT *a, PLINT ncol1 )
{
    set_stream();

    plscmap1a( r, g, b, a, ncol1 );
}

// 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.

void plstream::scmap1l( bool itype, PLINT npts, const PLFLT *intensity,
                        const PLFLT *coord1, const PLFLT *coord2, const PLFLT *coord3,
                        const bool *alt_hue_path )
{
    PLBOOL *loc_alt_hue_path = NULL;
    if ( alt_hue_path != NULL )
    {
        loc_alt_hue_path = new PLBOOL[npts - 1];
        for ( int i = 0; i < npts - 1; i++ )
        {
            loc_alt_hue_path[i] = (PLBOOL) alt_hue_path[i];
        }
    }

    set_stream();

    plscmap1l( (PLBOOL) itype, npts, intensity, coord1, coord2, coord3, loc_alt_hue_path );

    if ( loc_alt_hue_path != NULL )
        delete [] loc_alt_hue_path;
}

// 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
// and alpha value.

void plstream::scmap1la( bool itype, PLINT npts, const PLFLT *intensity,
                         const PLFLT *coord1, const PLFLT *coord2, const PLFLT *coord3,
                         const PLFLT *a, const bool *alt_hue_path )
{
    PLBOOL *loc_alt_hue_path = NULL;
    if ( alt_hue_path != NULL )
    {
        loc_alt_hue_path = new PLBOOL[npts - 1];
        for ( int i = 0; i < npts - 1; i++ )
        {
            loc_alt_hue_path[i] = (PLBOOL) alt_hue_path[i];
        }
    }

    set_stream();

    plscmap1la( (PLBOOL) itype, npts, intensity, coord1, coord2, coord3,
        a, loc_alt_hue_path );

    if ( loc_alt_hue_path != NULL )
        delete [] loc_alt_hue_path;
}

//
// void plstream::scmap1l( bool itype, PLINT npts, PLFLT *intensity,
//                      PLFLT *coord1, PLFLT *coord2, PLFLT *coord3)
// {
//  set_stream();
//
//  plscmap1l((PLBOOL) itype,npts,intensity,coord1,coord2,coord3,NULL);
//
// }

// Deprecated version using PLINT instead of bool
void plstream::scmap1l( PLINT itype, PLINT npts, const PLFLT *intensity,
                        const PLFLT *coord1, const PLFLT *coord2, const PLFLT *coord3,
                        const PLINT *alt_hue_path )
{
    PLBOOL *loc_alt_hue_path = NULL;
    if ( alt_hue_path != NULL )
    {
        loc_alt_hue_path = new PLBOOL[npts - 1];
        for ( int i = 0; i < npts - 1; i++ )
        {
            loc_alt_hue_path[i] = (PLBOOL) alt_hue_path[i];
        }
    }

    set_stream();

    plscmap1l( (PLBOOL) itype, npts, intensity, coord1, coord2, coord3, loc_alt_hue_path );

    if ( loc_alt_hue_path != NULL )
        delete [] loc_alt_hue_path;
}

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

void plstream::scol0( PLINT icol0, PLINT r, PLINT g, PLINT b )
{
    set_stream();

    plscol0( icol0, r, g, b );
}

// Set a given color from color map 0 by 8 bit RGB value + alpha value

void plstream::scol0a( PLINT icol0, PLINT r, PLINT g, PLINT b, PLFLT a )
{
    set_stream();

    plscol0a( icol0, r, g, b, a );
}

// Set the background color by 8 bit RGB value

void plstream::scolbg( PLINT r, PLINT g, PLINT b )
{
    set_stream();

    plscolbg( r, g, b );
}

// Set the background color by 8 bit RGB + alpha value

void plstream::scolbga( PLINT r, PLINT g, PLINT b, PLFLT a )
{
    set_stream();

    plscolbga( r, g, b, a );
}

// Used to globally turn color output on/off

void plstream::scolor( PLINT color )
{
    set_stream();

    plscolor( color );
}

// Sets the compression level

void plstream::scompression( PLINT compression )
{
    set_stream();

    plscompression( compression );
}

// Set the device (keyword) name

void plstream::sdev( const char *devname )
{
    set_stream();

    plsdev( devname );
}

// Get the device (keyword) name

void plstream::gdev( char *devname )
{
    set_stream();

    plgdev( devname );
}

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

void plstream::sdidev( PLFLT mar, PLFLT aspect, PLFLT jx, PLFLT jy )
{
    set_stream();

    plsdidev( mar, aspect, jx, jy );
}

// Set up transformation from metafile coordinates.

void plstream::sdimap( PLINT dimxmin, PLINT dimxmax,
                       PLINT dimymin, PLINT dimymax,
                       PLFLT dimxpmm, PLFLT dimypmm )
{
    set_stream();

    plsdimap( dimxmin, dimxmax, dimymin, dimymax, dimxpmm, dimypmm );
}

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

void plstream::sdiori( PLFLT rot )
{
    set_stream();

    plsdiori( rot );
}

// Set window into plot space

void plstream::sdiplt( PLFLT xmin, PLFLT ymin, PLFLT xmax, PLFLT ymax )
{
    set_stream();

    plsdiplt( xmin, ymin, xmax, ymax );
}

// Set window into plot space incrementally (zoom)

void plstream::sdiplz( PLFLT xmin, PLFLT ymin, PLFLT xmax, PLFLT ymax )
{
    set_stream();

    plsdiplz( xmin, ymin, xmax, ymax );
}

// Set the escape character for text strings.

void plstream::sesc( char esc )
{
    set_stream();

    plsesc( esc );
}

// Set the offset and spacing of contour labels

void plstream::setcontlabelparam( PLFLT offset, PLFLT size, PLFLT spacing,
                                  PLINT active )
{
    set_stream();

    pl_setcontlabelparam( offset, size, spacing, active );
}

// Set the format of the contour labels

void plstream::setcontlabelformat( PLINT lexp, PLINT sigdig )
{
    set_stream();

    pl_setcontlabelformat( lexp, sigdig );
}

// Set family file parameters

void plstream::sfam( PLINT fam, PLINT num, PLINT bmax )
{
    set_stream();

    plsfam( fam, num, bmax );
}

// Set FCI (font characterization integer)

void plstream::sfci( PLUNICODE fci )
{
    set_stream();

    plsfci( fci );
}

// Set the output file name.

void plstream::sfnam( const char *fnam )
{
    set_stream();

    plsfnam( fnam );
}

// Set the pointer to the data used in driver initialisation

void plstream::sdevdata( void *data )
{
    set_stream();

    plsdevdata( data );
}

// Set the current font family, style and weight

void plstream::sfont( PLINT family, PLINT style, PLINT weight )
{
    set_stream();

    plsfont( family, style, weight );
}

// Shade region.

void
plstream::shade( const PLFLT * const *a, PLINT nx, PLINT ny,
                 PLINT ( *defined )( PLFLT, PLFLT ),
                 PLFLT left, PLFLT right, PLFLT bottom, PLFLT top,
                 PLFLT shade_min, PLFLT shade_max,
                 PLINT sh_cmap, PLFLT sh_color, PLFLT sh_width,
                 PLINT min_color, PLFLT min_width,
                 PLINT max_color, PLFLT max_width,
                 void ( *fill )( PLINT, const PLFLT *, const PLFLT * ), bool rectangular,
                 void ( *pltr )( PLFLT, PLFLT, PLFLT *, PLFLT *, PLPointer ),
                 PLPointer pltr_data )
{
    set_stream();

    plshade( a, nx, ny, defined, left, right, bottom, top,
        shade_min, shade_max,
        sh_cmap, sh_color, sh_width,
        min_color, min_width, max_color, max_width,
        fill, (PLBOOL) rectangular, pltr, pltr_data );
}

// Deprecated version using PLINT instead of bool
void
plstream::shade( const PLFLT * const *a, PLINT nx, PLINT ny,
                 PLINT ( *defined )( PLFLT, PLFLT ),
                 PLFLT left, PLFLT right, PLFLT bottom, PLFLT top,
                 PLFLT shade_min, PLFLT shade_max,
                 PLINT sh_cmap, PLFLT sh_color, PLFLT sh_width,
                 PLINT min_color, PLFLT min_width,
                 PLINT max_color, PLFLT max_width,
                 void ( *fill )( PLINT, const PLFLT *, const PLFLT * ), PLINT rectangular,
                 void ( *pltr )( PLFLT, PLFLT, PLFLT *, PLFLT *, PLPointer ),
                 PLPointer pltr_data )
{
    set_stream();

    plshade( a, nx, ny, defined, left, right, bottom, top,
        shade_min, shade_max,
        sh_cmap, sh_color, sh_width,
        min_color, min_width, max_color, max_width,
        fill, (PLBOOL) rectangular, pltr, pltr_data );
}

void
plstream::shades( const PLFLT * const *a, PLINT nx, PLINT ny,
                  PLINT ( *defined )( PLFLT, PLFLT ),
                  PLFLT xmin, PLFLT xmax, PLFLT ymin, PLFLT ymax,
                  const PLFLT *clevel, PLINT nlevel, PLFLT fill_width,
                  PLINT cont_color, PLFLT cont_width,
                  void ( *fill )( PLINT, const PLFLT *, const PLFLT * ), bool rectangular,
                  void ( *pltr )( PLFLT, PLFLT, PLFLT *, PLFLT *, PLPointer ),
                  PLPointer pltr_data )
{
    set_stream();

    plshades( a, nx, ny, defined, xmin, xmax, ymin, ymax,
        clevel, nlevel, fill_width, cont_color, cont_width,
        fill, (PLBOOL) rectangular, pltr, pltr_data );
}

// Deprecated version using PLINT instead of bool
void
plstream::shades( const PLFLT * const *a, PLINT nx, PLINT ny,
                  PLINT ( *defined )( PLFLT, PLFLT ),
                  PLFLT xmin, PLFLT xmax, PLFLT ymin, PLFLT ymax,
                  const PLFLT *clevel, PLINT nlevel, PLFLT fill_width,
                  PLINT cont_color, PLFLT cont_width,
                  void ( *fill )( PLINT, const PLFLT *, const PLFLT * ), PLINT rectangular,
                  void ( *pltr )( PLFLT, PLFLT, PLFLT *, PLFLT *, PLPointer ),
                  PLPointer pltr_data )
{
    set_stream();

    plshades( a, nx, ny, defined, xmin, xmax, ymin, ymax,
        clevel, nlevel, fill_width, cont_color, cont_width,
        fill, (PLBOOL) rectangular, pltr, pltr_data );
}

void
plstream::shade( Contourable_Data & d, PLFLT xmin, PLFLT xmax,
                 PLFLT ymin, PLFLT ymax, PLFLT shade_min, PLFLT shade_max,
                 PLINT sh_cmap, PLFLT sh_color, PLFLT sh_width,
                 PLINT min_color, PLFLT min_width,
                 PLINT max_color, PLFLT max_width,
                 bool rectangular,
                 Coord_Xformer *pcxf )
{
    set_stream();

    int nx, ny;
    d.elements( nx, ny );

    if ( pcxf != NULL )
        ::plfshade( Contourable_Data_evaluator, &d,
            NULL, NULL,
            nx, ny,
            xmin, xmax, ymin, ymax, shade_min, shade_max,
            sh_cmap, sh_color, sh_width,
            min_color, min_width, max_color, max_width,
            plcallback::fill, rectangular,
            Coord_Xform_evaluator, pcxf );
    else
        ::plfshade( Contourable_Data_evaluator, &d,
            NULL, NULL,
            nx, ny,
            xmin, xmax, ymin, ymax, shade_min, shade_max,
            sh_cmap, sh_color, sh_width,
            min_color, min_width, max_color, max_width,
            plcallback::fill, rectangular,
            NULL, NULL );
}

// Deprecated version using PLINT not bool
void
plstream::shade( Contourable_Data & d, PLFLT xmin, PLFLT xmax,
                 PLFLT ymin, PLFLT ymax, PLFLT shade_min, PLFLT shade_max,
                 PLINT sh_cmap, PLFLT sh_color, PLFLT sh_width,
                 PLINT min_color, PLFLT min_width,
                 PLINT max_color, PLFLT max_width,
                 PLINT rectangular,
                 Coord_Xformer *pcxf )
{
    set_stream();

    int nx, ny;
    d.elements( nx, ny );

    ::plfshade( Contourable_Data_evaluator, &d,
        NULL, NULL,
        nx, ny,
        xmin, xmax, ymin, ymax, shade_min, shade_max,
        sh_cmap, sh_color, sh_width,
        min_color, min_width, max_color, max_width,
        plcallback::fill, rectangular != 0,
        Coord_Xform_evaluator, pcxf );
}

void
plstream::shade1( const PLFLT *a, PLINT nx, PLINT ny,
                  PLINT ( *defined )( PLFLT, PLFLT ),
                  PLFLT left, PLFLT right, PLFLT bottom, PLFLT top,
                  PLFLT shade_min, PLFLT shade_max,
                  PLINT sh_cmap, PLFLT sh_color, PLFLT sh_width,
                  PLINT min_color, PLFLT min_width,
                  PLINT max_color, PLFLT max_width,
                  void ( *fill )( PLINT, const PLFLT *, const PLFLT * ), bool rectangular,
                  void ( *pltr )( PLFLT, PLFLT, PLFLT *, PLFLT *, PLPointer ),
                  PLPointer pltr_data )
{
    set_stream();

    plshade1( a, nx, ny, defined,
        left, right, bottom, top,
        shade_min, shade_max,
        sh_cmap, sh_color, sh_width,
        min_color, min_width, max_color, max_width,
        fill, (PLBOOL) rectangular, pltr, pltr_data );
}

// Deprecated version using PLINT not bool
void
plstream::shade1( const PLFLT *a, PLINT nx, PLINT ny,
                  PLINT ( *defined )( PLFLT, PLFLT ),
                  PLFLT left, PLFLT right, PLFLT bottom, PLFLT top,
                  PLFLT shade_min, PLFLT shade_max,
                  PLINT sh_cmap, PLFLT sh_color, PLFLT sh_width,
                  PLINT min_color, PLFLT min_width,
                  PLINT max_color, PLFLT max_width,
                  void ( *fill )( PLINT, const PLFLT *, const PLFLT * ), PLINT rectangular,
                  void ( *pltr )( PLFLT, PLFLT, PLFLT *, PLFLT *, PLPointer ),
                  PLPointer pltr_data )
{
    set_stream();

    plshade1( a, nx, ny, defined,
        left, right, bottom, top,
        shade_min, shade_max,
        sh_cmap, sh_color, sh_width,
        min_color, min_width, max_color, max_width,
        fill, (PLBOOL) rectangular, pltr, pltr_data );
}

void
plstream::fshade( 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, PLFLT sh_width,
                  PLINT min_color, PLFLT min_width,
                  PLINT max_color, PLFLT max_width,
                  void ( *fill )( PLINT, const PLFLT *, const PLFLT * ), bool rectangular,
                  void ( *pltr )( PLFLT, PLFLT, PLFLT *, PLFLT *, PLPointer ),
                  PLPointer pltr_data )
{
    set_stream();

    plfshade( f2eval, f2eval_data,
        c2eval, c2eval_data,
        nx, ny, left, right, bottom, top,
        shade_min, shade_max,
        sh_cmap, sh_color, sh_width,
        min_color, min_width, max_color, max_width,
        fill, (PLBOOL) rectangular, pltr, pltr_data );
}

// Deprecated version using PLINT not bool
void
plstream::fshade( 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, PLFLT sh_width,
                  PLINT min_color, PLFLT min_width,
                  PLINT max_color, PLFLT max_width,
                  void ( *fill )( PLINT, const PLFLT *, const PLFLT * ), PLINT rectangular,
                  void ( *pltr )( PLFLT, PLFLT, PLFLT *, PLFLT *, PLPointer ),
                  PLPointer pltr_data )
{
    set_stream();

    plfshade( f2eval, f2eval_data,
        c2eval, c2eval_data,
        nx, ny, left, right, bottom, top,
        shade_min, shade_max,
        sh_cmap, sh_color, sh_width,
        min_color, min_width, max_color, max_width,
        fill, (PLBOOL) rectangular, pltr, pltr_data );
}

// Setup a user-provided custom labeling function

void plstream::slabelfunc( void ( *label_func )( PLINT, PLFLT, char *, PLINT, PLPointer ),
                           PLPointer label_data )
{
    set_stream();

    plslabelfunc( label_func, label_data );
}

// Set up lengths of major tick marks.

void plstream::smaj( PLFLT def, PLFLT scale )
{
    set_stream();

    plsmaj( def, scale );
}

// Set the RGB memory area to be plotted (with the 'mem' or 'memcairo' drivers)

void plstream::smem( PLINT maxx, PLINT maxy, void *plotmem )
{
    set_stream();

    plsmem( maxx, maxy, plotmem );
}

// Set the RGBA memory area to be plotted (with the 'memcairo' drivers)

void plstream::smema( PLINT maxx, PLINT maxy, void *plotmem )
{
    set_stream();

    plsmema( maxx, maxy, plotmem );
}

// Set up lengths of minor tick marks.

void plstream::smin( PLFLT def, PLFLT scale )
{
    set_stream();

    plsmin( def, scale );
}

// Set orientation.  Must be done before calling plinit.

void plstream::sori( PLINT ori )
{
    set_stream();

    plsori( ori );
}

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

void plstream::spage( PLFLT xp, PLFLT yp, PLINT xleng, PLINT yleng,
                      PLINT xoff, PLINT yoff )
{
    set_stream();

    plspage( xp, yp, xleng, yleng, xoff, yoff );
}

// Set the colors for color table 0 from a cmap0 file

void plstream::spal0( const char *filename )
{
    set_stream();

    plspal0( filename );
}

// Set the colors for color table 1 from a cmap1 file

void plstream::spal1( const char *filename, bool interpolate )
{
    set_stream();

    plspal1( filename, (PLBOOL) interpolate );
}

// Set the pause (on end-of-page) status

void plstream::spause( bool pause )
{
    set_stream();

    plspause( (PLBOOL) pause );
}

// Deprecated version using PLINT not bool
void plstream::spause( PLINT pause )
{
    set_stream();

    plspause( (PLBOOL) pause );
}

// Set stream number.

void plstream::sstrm( PLINT strm )
{
    set_stream();

    plsstrm( strm );
}

// Set the number of subwindows in x and y

void plstream::ssub( PLINT nx, PLINT ny )
{
    set_stream();

    plssub( nx, ny );
}

// Set symbol height.

void plstream::ssym( PLFLT def, PLFLT scale )
{
    set_stream();

    plssym( def, scale );
}

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

void plstream::star( PLINT nx, PLINT ny )
{
    set_stream();

    plstar( nx, ny );
}

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

void plstream::start( const char *devname, PLINT nx, PLINT ny )
{
    set_stream();

    plstart( devname, nx, ny );
}

// Set the coordinate transform

void plstream::stransform( void ( *coordinate_transform )( PLFLT, PLFLT, PLFLT*, PLFLT*, PLPointer ),
                           PLPointer coordinate_transform_data )
{
    set_stream();

    plstransform( coordinate_transform, coordinate_transform_data );
}

// Prints out the same string repeatedly at the n points in world
// coordinates given by the x and y arrays.  Supersedes plpoin and
// plsymbol for the case where text refers to a unicode glyph either
// directly as UTF-8 or indirectly via the standard text escape
// sequences allowed for PLplot input strings.

void plstream::string( PLINT n, const PLFLT *x, const PLFLT *y, const char *string )
{
    set_stream();
    plstring( n, x, y, string );
}

// Prints out the same string repeatedly at the n points in world
// coordinates given by the x, y, and z arrays.  Supersedes plpoin3
// for the case where text refers to a unicode glyph either directly
// as UTF-8 or indirectly via the standard text escape sequences
// allowed for PLplot input strings.

void plstream::string3( PLINT n, const PLFLT *x, const PLFLT *y, const PLFLT *z, const char *string )
{
    set_stream();
    plstring3( n, x, y, z, string );
}

// Create 1d stripchart

void plstream::stripc( PLINT *id, const char *xspec, const char *yspec,
                       PLFLT xmin, PLFLT xmax, PLFLT xjump,
                       PLFLT ymin, PLFLT ymax,
                       PLFLT xlpos, PLFLT ylpos, bool y_ascl,
                       bool acc, PLINT colbox, PLINT collab,
                       const PLINT colline[], const PLINT styline[],
                       const char *legline[], const char *labx,
                       const char *laby, const char *labtop )
{
    set_stream();

    plstripc( id, xspec, yspec, xmin, xmax, xjump, ymin, ymax, xlpos, ylpos,
        (PLBOOL) y_ascl, (PLBOOL) acc, colbox, collab, colline, styline,
        legline, labx, laby, labtop );
}


// Deprecated version using PLINT not bool
void plstream::stripc( PLINT *id, const char *xspec, const char *yspec,
                       PLFLT xmin, PLFLT xmax, PLFLT xjump,
                       PLFLT ymin, PLFLT ymax, PLFLT xlpos, PLFLT ylpos,
                       PLINT y_ascl, PLINT acc, PLINT colbox, PLINT collab,
                       const PLINT colline[], const PLINT styline[],
                       const char *legline[], const char *labx,
                       const char *laby, const char *labtop )
{
    set_stream();

    plstripc( id, xspec, yspec, xmin, xmax, xjump, ymin, ymax, xlpos, ylpos,
        (PLBOOL) y_ascl, (PLBOOL) acc, colbox, collab, colline, styline,
        legline, labx, laby, labtop );
}

// Add a point to a stripchart.

void plstream::stripa( PLINT id, PLINT pen, PLFLT x, PLFLT y )
{
    set_stream();

    plstripa( id, pen, x, y );
}

// Deletes and releases memory used by a stripchart.

void plstream::stripd( PLINT id )
{
    set_stream();

    plstripd( id );
}

// plots a 2d image (or a matrix too large for plshade() )  - colors
// automatically scaled

void plstream::image( const PLFLT * const *data, PLINT nx, PLINT ny,
                      PLFLT xmin, PLFLT xmax, PLFLT ymin, PLFLT ymax,
                      PLFLT zmin, PLFLT zmax,
                      PLFLT Dxmin, PLFLT Dxmax, PLFLT Dymin, PLFLT Dymax )
{
    set_stream();

    plimage( data, nx, ny, xmin, xmax, ymin, ymax, zmin, zmax,
        Dxmin, Dxmax, Dymin, Dymax );
}

// plots a 2d image (or a matrix too large for plshade() )

void plstream::imagefr( const PLFLT * const *data, PLINT nx, PLINT ny, PLFLT xmin, PLFLT xmax,
                        PLFLT ymin, PLFLT ymax, PLFLT zmin, PLFLT zmax,
                        PLFLT valuemin, PLFLT valuemax,
                        void ( *pltr )( PLFLT, PLFLT, PLFLT *, PLFLT *, PLPointer ),
                        PLPointer pltr_data )
{
    set_stream();

    plimagefr( data, nx, ny, xmin, xmax, ymin, ymax, zmin, zmax,
        valuemin, valuemax, pltr, pltr_data );
}

// Set up a new line style

void plstream::styl( PLINT nms, const PLINT *mark, const PLINT *space )
{
    set_stream();

    plstyl( nms, mark, space );
}

// Sets the edges of the viewport to the specified absolute coordinates

void plstream::svpa( PLFLT xmin, PLFLT xmax, PLFLT ymin, PLFLT ymax )
{
    set_stream();

    plsvpa( xmin, xmax, ymin, ymax );
}

// Set x axis labeling parameters

void plstream::sxax( PLINT digmax, PLINT digits )
{
    set_stream();

    plsxax( digmax, digits );
}

// Set inferior X window

void plstream::sxwin( PLINT window_id )
{
    set_stream();

    plsxwin( window_id );
}

// Set y axis labeling parameters

void plstream::syax( PLINT digmax, PLINT digits )
{
    set_stream();

    plsyax( digmax, digits );
}

// Plots array y against x for n points using Hershey symbol "code"

void plstream::sym( PLINT n, const PLFLT *x, const PLFLT *y, PLINT code )
{
    set_stream();

    plsym( n, x, y, code );
}

// Set z axis labeling parameters

void plstream::szax( PLINT digmax, PLINT digits )
{
    set_stream();

    plszax( digmax, digits );
}

// Switches to text screen.

void plstream::text()
{
    set_stream();

    pltext();
}

// Set the format for date / time labels

void plstream::timefmt( const char *fmt )
{
    set_stream();

    pltimefmt( fmt );
}

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

void plstream::vasp( PLFLT aspect )
{
    set_stream();

    plvasp( aspect );
}

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

void plstream::vpas( PLFLT xmin, PLFLT xmax, PLFLT ymin, PLFLT ymax,
                     PLFLT aspect )
{
    set_stream();

    plvpas( xmin, xmax, ymin, ymax, aspect );
}

// Creates a viewport with the specified normalized subpage coordinates.

void plstream::vpor( PLFLT xmin, PLFLT xmax, PLFLT ymin, PLFLT ymax )
{
    set_stream();

    plvpor( xmin, xmax, ymin, ymax );
}

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

void plstream::vsta()
{
    set_stream();

    plvsta();
}

// Set up a window for three-dimensional plotting.

void plstream::w3d( PLFLT basex, PLFLT basey, PLFLT height, PLFLT xmin0,
                    PLFLT xmax0, PLFLT ymin0, PLFLT ymax0, PLFLT zmin0,
                    PLFLT zmax0, PLFLT alt, PLFLT az )
{
    set_stream();

    plw3d( basex, basey, height, xmin0, xmax0, ymin0, ymax0, zmin0, zmax0,
        alt, az );
}

// Set pen width.

void plstream::width( PLFLT width )
{
    set_stream();

    plwidth( width );
}

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

void plstream::wind( PLFLT xmin, PLFLT xmax, PLFLT ymin, PLFLT ymax )
{
    set_stream();

    plwind( xmin, xmax, ymin, ymax );
}

//  Set xor mode; mode = 1-enter, 0-leave, status = 0 if not interactive device

void plstream::xormod( bool mode, bool *status )
{
    PLBOOL loc_status;

    set_stream();

    plxormod( (PLBOOL) mode, &loc_status );

    *status = ( loc_status != 0 );
}

// Deprecated version using PLINT not bool
void plstream::xormod( PLINT mode, PLINT *status )
{
    PLBOOL loc_status;

    set_stream();

    plxormod( (PLBOOL) mode, &loc_status );

    *status = (PLINT) loc_status;
}

// Set the seed for the random number generator included.

void plstream::seed( unsigned int s )
{
    set_stream();

    plseed( s );
}

// Returns a random number on [0,1]-interval.

PLFLT plstream::randd( void )
{
    set_stream();

    return plrandd();
}

// The rest for use from C / C++ only

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

void plstream::gFileDevs( const char ***p_menustr, const char ***p_devname,
                          int *p_ndev )
{
    set_stream();

    plgFileDevs( p_menustr, p_devname, p_ndev );
}

// Set the function pointer for the keyboard event handler

void plstream::sKeyEH( void ( *KeyEH )( PLGraphicsIn *, void *, int * ),
                       void *KeyEH_data )
{
    set_stream();

    plsKeyEH( KeyEH, KeyEH_data );
}

// Set the variables to be used for storing error info

void plstream::sError( PLINT *errcode, char *errmsg )
{
    set_stream();

    plsError( errcode, errmsg );
}

// Sets an optional user exit handler.

void plstream::sexit( int ( *handler )( const char * ) )
{
    set_stream();

    plsexit( handler );
}

// We obviously won't be using this object from Fortran...
// // Identity transformation for plots from Fortran.

// void plstream::tr0f(PLFLT x, PLFLT y, PLFLT *tx, PLFLT *ty, void *pltr_data )
// {
//     set_stream();

//     pltr0f(x,y,tx,ty,pltr_data);
// }

// // Does linear interpolation from doubly dimensioned coord arrays
// // (row dominant, i.e. Fortran ordering).

// void plstream::tr2f( PLFLT x, PLFLT y, PLFLT *tx, PLFLT *ty, void *pltr_data )
// {
//     set_stream();

//     pltr2f(x,y,tx,ty,pltr_data);
// }

// Example linear transformation function for contour plotter.
// This is not actually a part of the core library any more
//
// void  plstream::xform( PLFLT x, PLFLT y, PLFLT *tx, PLFLT *ty )
// {
//  set_stream();
//
//  xform(x,y,tx,ty);
// }

// Function evaluators

// Does a lookup from a 2d function array.  Array is of type (PLFLT **),
// and is column dominant (normal C ordering).

PLFLT plstream::f2eval2( PLINT ix, PLINT iy, PLPointer plf2eval_data )
{
    set_stream();

    return ::plf2eval2( ix, iy, plf2eval_data );
}

// Does a lookup from a 2d function array.  Array is of type (PLFLT *),
// and is column dominant (normal C ordering).

PLFLT plstream::f2eval( PLINT ix, PLINT iy, PLPointer plf2eval_data )
{
    set_stream();

    return ::plf2eval( ix, iy, plf2eval_data );
}

// Does a lookup from a 2d function array.  Array is of type (PLFLT *),
// and is row dominant (Fortran ordering).

PLFLT plstream::f2evalr( PLINT ix, PLINT iy, PLPointer plf2eval_data )
{
    set_stream();

    return ::plf2evalr( ix, iy, plf2eval_data );
}

// Command line parsing utilities

// Clear internal option table info structure.

void plstream::ClearOpts()
{
    set_stream();

    ::plClearOpts();
}

// Reset internal option table info structure.

void plstream::ResetOpts()
{
    set_stream();

    ::plResetOpts();
}

// Merge user option table into internal info structure.

int plstream::MergeOpts( PLOptionTable *options, const char *name,
                         const char **notes )
{
    set_stream();

    return ::plMergeOpts( options, name, notes );
}

// Set the strings used in usage and syntax messages.

void plstream::SetUsage( char *program_string, char *usage_string )
{
    set_stream();

    ::plSetUsage( program_string, usage_string );
}

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

int plstream::setopt( const char *opt, const char *optarg )
{
    set_stream();

    return ::plsetopt( opt, optarg );
}

// Depreciated version - use setopt instead.
#ifdef PL_DEPRECATED
int plstream::SetOpt( const char *opt, const char *optarg )
{
    set_stream();

    return ::plsetopt( opt, optarg );
}
#endif // PL_DEPRECATED

// Print usage & syntax message.

void plstream::OptUsage()
{
    set_stream();

    ::plOptUsage();
}

// Miscellaneous

// Set the output file pointer

void plstream::gfile( FILE **p_file )
{
    set_stream();

    ::plgfile( p_file );
}

// Get the output file pointer

void plstream::sfile( FILE *file )
{
    set_stream();

    ::plsfile( file );
}


// Get the escape character for text strings.

void plstream::gesc( char *p_esc )
{
    set_stream();

    ::plgesc( p_esc );
}

// Front-end to driver escape function.

void plstream::cmd( PLINT op, void *ptr )
{
    set_stream();

    ::pl_cmd( op, ptr );
}

// Return full pathname for given file if executable

int plstream::FindName( char *p )
{
    set_stream();

    return plFindName( p );
}

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

char *plstream::FindCommand( char *fn )
{
    set_stream();

    return plFindCommand( fn );
}

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

void plstream::GetName( char *dir, char *subdir, char *filename,
                        char **filespec )
{
    set_stream();

    plGetName( dir, subdir, filename, filespec );
}

// Prompts human to input an integer in response to given message.

PLINT plstream::GetInt( char *s )
{
    set_stream();

    return plGetInt( s );
}

// Prompts human to input a float in response to given message.

PLFLT plstream::GetFlt( char *s )
{
    set_stream();

    return plGetFlt( s );
}

// Nice way to allocate space for a vectored 2d grid

// Allocates a block of memory for use as a 2-d grid of PLFLT's.

void plstream::Alloc2dGrid( PLFLT ***f, PLINT nx, PLINT ny )
{
    set_stream();

    ::plAlloc2dGrid( f, nx, ny );
}

// Frees a block of memory allocated with plAlloc2dGrid().

void plstream::Free2dGrid( PLFLT **f, PLINT nx, PLINT ny )
{
    set_stream();

    ::plFree2dGrid( f, nx, ny );
}

// Find the maximum and minimum of a 2d matrix allocated with plAllc2dGrid().
void plstream::MinMax2dGrid( const PLFLT * const *f, PLINT nx, PLINT ny,
                             PLFLT *fmax, PLFLT *fmin )
{
    set_stream();

    ::plMinMax2dGrid( f, nx, ny, fmax, fmin );
}

// Functions for converting between HLS and RGB color space

void plstream::hlsrgb( PLFLT h, PLFLT l, PLFLT s, PLFLT *p_r, PLFLT *p_g,
                       PLFLT *p_b )
{
    set_stream();

    ::c_plhlsrgb( h, l, s, p_r, p_g, p_b );
}

void plstream::rgbhls( PLFLT r, PLFLT g, PLFLT b, PLFLT *p_h, PLFLT *p_l,
                       PLFLT *p_s )
{
    set_stream();

    ::c_plrgbhls( r, g, b, p_h, p_l, p_s );
}

// Wait for right button mouse event and translate to world coordinates

int plstream::GetCursor( PLGraphicsIn *gin )
{
    set_stream();

    return plGetCursor( gin );
}

//--------------------------------------------------------------------------
//                              end of plstream.cc
//--------------------------------------------------------------------------
