| /* plot, unix plot to graphics device translators. |
| Copyright (C) 1989 Free Software Foundation, Inc. |
| |
| plot is distributed in the hope that it will be useful, but WITHOUT |
| ANY WARRANTY. No author or distributor accepts responsibility to |
| anyone for the consequences of using it or for whether it serves any |
| particular purpose or works at all, unless he says so in writing. |
| Refer to the GNU General Public License for full details. |
| |
| Everyone is granted permission to copy, modify and redistribute |
| plot, but only under the conditions described in the GNU General |
| Public License. A copy of this license is supposed to have been given |
| to you along with plot so you can know your rights and |
| responsibilities. It should be in a file named COPYING. Among other |
| things, the copyright notice and this notice must be preserved on all |
| copies. */ |
| |
| /* this file contains all the exernal references between plot library |
| functions. The are not guaranteed to exist for a particular device |
| and thus are not made available to the user in general. */ |
| |
| extern int font_id; |
| extern int font_size; |
| extern float text_rotation; |
| extern int line_style; |
| extern int last_x, last_y; |
| extern int PointsInLine; |
| extern float dash_length; |
| extern int fill_level; |
| |
| extern double x_input_min; /* minimum input x coordinate */ |
| extern double y_input_min; /* minimum input y coordinate */ |
| extern double x_output_min; /* minimum output x coordinate */ |
| extern double y_output_min; /* minimum output y coordinate */ |
| extern double x_output_max; /* maximum output x coordinate */ |
| extern double y_output_max; /* maximum output y coordinate */ |
| extern double scaleup; /* maximum input to output scaleing of x and y */ |
| extern double x_scale; /* input to output scaleing for x */ |
| extern double y_scale; /* input to output scaleing for y */ |
| |
| /* For convenience - some machines do not define M_PI. */ |
| #ifndef M_PI |
| #define M_PI 3.14159265358979323846264 |
| #endif |
