--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pt-plot.h	Mon Jun 06 00:15:43 1994 +0000
@@ -0,0 +1,185 @@
+// tree-plot.h                                         -*- C++ -*-
+/*
+
+Copyright (C) 1992, 1993, 1994 John W. Eaton
+
+This file is part of Octave.
+
+Octave is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+Octave 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 General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with Octave; see the file COPYING.  If not, write to the Free
+Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#if !defined (octave_tree_plot_h)
+#define octave_tree_plot_h 1
+
+#if defined (__GNUG__)
+#pragma interface
+#endif
+
+class tree_plot_limits;
+class tree_plot_range;
+class tree_subplot;
+class tree_subplot_using;
+class tree_subplot_style;
+class tree_subplot_list;
+class tree_plot_command;
+
+class ostream;
+
+#include "tree-base.h"
+#include "tree.h"
+
+class
+tree_plot_command : public tree_command
+{
+ public:
+  tree_plot_command (void);
+  tree_plot_command (tree_subplot_list *plt, int nd);
+  tree_plot_command (tree_subplot_list *plt, tree_plot_limits *rng, int nd);
+
+  ~tree_plot_command (void);
+
+  tree_constant eval (int print);
+
+ private:
+  int ndim;
+  tree_plot_limits *range;
+  tree_subplot_list *plot_list;
+};
+
+class
+tree_subplot_list : public tree
+{
+ public:
+  tree_subplot_list (void);
+  tree_subplot_list (tree *data);
+  tree_subplot_list (tree_subplot_list *t);
+  tree_subplot_list (tree_subplot_using *u, tree *t, tree_subplot_style *s);
+
+  ~tree_subplot_list (void);
+
+  tree_subplot_list *set_data (tree *data);
+
+  tree_subplot_list *chain (tree_subplot_list *t);
+
+  tree_subplot_list *reverse (void);
+
+  tree_subplot_list *next_elem (void);
+
+  tree_constant eval (int print);
+//  tree_constant *eval (int print, int nargout);
+
+  int print (int ndim, ostrstream& plot_buf);
+
+ private:
+  tree *plot_data;
+  tree_subplot_using *using;
+  tree *title;
+  tree_subplot_style *style;
+  tree_subplot_list *next;
+};
+
+class
+tree_plot_limits : public tree
+{
+ public:
+  tree_plot_limits (void);
+  tree_plot_limits (tree_plot_range *xlim);
+  tree_plot_limits (tree_plot_range *xlim, tree_plot_range *ylim);
+  tree_plot_limits (tree_plot_range *xlim, tree_plot_range *ylim,
+		    tree_plot_range *zlim);
+
+  ~tree_plot_limits (void);
+
+  tree_constant eval (int print);
+
+  void print (int print, ostrstream& plot_buf);
+
+ private:
+  tree_plot_range *x_range;
+  tree_plot_range *y_range;
+  tree_plot_range *z_range;
+};
+
+class
+tree_plot_range : public tree
+{
+ public:
+  tree_plot_range (void);
+  tree_plot_range (tree *l, tree *u);
+
+  ~tree_plot_range (void);
+
+  tree_constant eval (int print);
+
+  void print (ostrstream& plot_buf);
+
+ private:
+  tree *lower;
+  tree *upper;
+};
+
+class
+tree_subplot_using : public tree
+{
+ public:
+  tree_subplot_using (void);
+  tree_subplot_using (tree *fmt);
+
+  ~tree_subplot_using (void);
+
+  tree_subplot_using *set_format (tree *fmt);
+
+  tree_subplot_using *add_qualifier (tree *t);
+
+  tree_constant eval (int print);
+
+  int print (int ndim, int n_max, ostrstream& plot_buf);
+
+ private:
+  int qualifier_count;
+  tree *x[4];
+  tree *scanf_fmt;
+};
+
+class
+tree_subplot_style : public tree
+{
+ public:
+  tree_subplot_style (void);
+  tree_subplot_style (char *s);
+  tree_subplot_style (char *s, tree *lt);
+  tree_subplot_style (char *s, tree *lt, tree *pt);
+
+  ~tree_subplot_style (void);
+
+  tree_constant eval (int print);
+
+  int print (ostrstream& plot_buf);
+
+ private:
+  char *style;
+  tree *linetype;
+  tree *pointtype;
+};
+
+#endif
+
+/*
+;;; Local Variables: ***
+;;; mode: C++ ***
+;;; page-delimiter: "^/\\*" ***
+;;; End: ***
+*/