| /* -*-C-*- |
| ******************************************************************************** |
| * |
| * File: chop.h (Formerly chop.h) |
| * Description: |
| * Author: Mark Seaman, SW Productivity |
| * Created: Fri Oct 16 14:37:00 1987 |
| * Modified: Wed Jul 10 14:47:37 1991 (Mark Seaman) marks@hpgrlt |
| * Language: C |
| * Package: N/A |
| * Status: Reusable Software Component |
| * |
| * (c) Copyright 1987, Hewlett-Packard Company. |
| ** Licensed under the Apache License, Version 2.0 (the "License"); |
| ** you may not use this file except in compliance with the License. |
| ** You may obtain a copy of the License at |
| ** http://www.apache.org/licenses/LICENSE-2.0 |
| ** Unless required by applicable law or agreed to in writing, software |
| ** distributed under the License is distributed on an "AS IS" BASIS, |
| ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| ** See the License for the specific language governing permissions and |
| ** limitations under the License. |
| * |
| *******************************************************************************/ |
| |
| #ifndef CHOP_H |
| #define CHOP_H |
| |
| /*---------------------------------------------------------------------- |
| I n c l u d e s |
| ----------------------------------------------------------------------*/ |
| #include "oldheap.h" |
| #include "seam.h" |
| |
| /*---------------------------------------------------------------------- |
| T y p e s |
| ---------------------------------------------------------------------*/ |
| #define MAX_NUM_POINTS 50 |
| typedef HEAP *POINT_GROUP; |
| typedef HEAP *SPLIT_GROUP; |
| |
| /*---------------------------------------------------------------------- |
| V a r i a b l e s |
| ----------------------------------------------------------------------*/ |
| extern int chop_enable; |
| extern int chop_debug; |
| extern int same_distance; |
| extern int split_length; |
| extern float center_knob; |
| extern float overlap_knob; |
| extern float split_dist_knob; |
| extern float width_change_knob; |
| extern float sharpness_knob; |
| extern int min_outline_area; |
| extern int min_outline_points; |
| extern float good_split; |
| extern float ok_split; |
| extern int chop_enable; |
| |
| /*---------------------------------------------------------------------- |
| M a c r o s |
| ----------------------------------------------------------------------*/ |
| /********************************************************************** |
| * point_bend_angle |
| * |
| * Measure the angle of bend at this edge point. The argument should |
| * be of type EDGEPT. |
| **********************************************************************/ |
| #define point_bend_angle(point) \ |
| (angle_change ((point)->prev, (point), (point)->next)) |
| |
| /*---------------------------------------------------------------------- |
| F u n c t i o n s |
| ----------------------------------------------------------------------*/ |
| PRIORITY point_priority(EDGEPT *point); |
| |
| void add_point_to_list(POINT_GROUP point_list, EDGEPT *point); |
| |
| int angle_change(EDGEPT *point1, EDGEPT *point2, EDGEPT *point3); |
| |
| void init_chop(); |
| |
| int is_little_chunk(EDGEPT *point1, EDGEPT *point2); |
| |
| int is_small_area(EDGEPT *point1, EDGEPT *point2); |
| |
| EDGEPT *pick_close_point(EDGEPT *critical_point, |
| EDGEPT *vertical_point, |
| int *best_dist); |
| |
| void prioritize_points(TESSLINE *outline, POINT_GROUP points); |
| |
| void new_min_point(EDGEPT *local_min, POINT_GROUP points); |
| |
| void new_max_point(EDGEPT *local_max, POINT_GROUP points); |
| |
| void vertical_projection_point(EDGEPT *split_point, EDGEPT *target_point, |
| EDGEPT** best_point); |
| |
| /* |
| #if defined(__STDC__) || defined(__cplusplus) |
| # define _ARGS(s) s |
| #else |
| # define _ARGS(s) () |
| #endif*/ |
| |
| /* chop.c |
| PRIORITY point_priority |
| _ARGS((EDGEPT *point)); |
| |
| void add_point_to_list |
| _ARGS((POINT_GROUP point_list, |
| EDGEPT *point)); |
| |
| SEAM *create_split |
| _ARGS((BLOB *blob, |
| POINT_GROUP points)); |
| |
| SPLIT *extended_split |
| _ARGS((inT32 location, |
| EDGEPT *starting_point)); |
| |
| SEAM *get_best_pair |
| _ARGS((SPLIT_GROUP split_queue, |
| BLOB *blob)); |
| |
| void init_chop |
| _ARGS((void)); |
| |
| EDGEPT *pick_close_point |
| _ARGS((EDGEPT *critical_point, |
| EDGEPT *vertical_point, |
| int *best_dist)); |
| |
| void prioritize_points |
| _ARGS((TESSLINE *outline, |
| POINT_GROUP points)); |
| |
| void new_min_point |
| _ARGS((EDGEPT *local_min, |
| POINT_GROUP points)); |
| |
| void new_max_point |
| _ARGS((EDGEPT *local_max, |
| POINT_GROUP points)); |
| |
| EDGEPT *vertical_projection_point |
| _ARGS((EDGEPT *split_point, |
| EDGEPT *target_point)); |
| |
| #undef _ARGS |
| */ |
| #endif |