annotate mupdf-source/thirdparty/tesseract/src/wordrec/plotedges.cpp @ 46:7ee69f120f19 default tip

>>>>> tag v1.26.5+1 for changeset b74429b0f5c4
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 17:17:30 +0200
parents b50eed0cc0ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /******************************************************************************
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2 *
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3 * File: plotedges.cpp (Formerly plotedges.c)
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4 * Description: Graphics routines for "Edges" and "Outlines" windows
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5 * Author: Mark Seaman, OCR Technology
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6 *
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7 * (c) Copyright 1989, Hewlett-Packard Company.
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8 ** Licensed under the Apache License, Version 2.0 (the "License");
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9 ** you may not use this file except in compliance with the License.
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10 ** You may obtain a copy of the License at
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11 ** http://www.apache.org/licenses/LICENSE-2.0
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12 ** Unless required by applicable law or agreed to in writing, software
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13 ** distributed under the License is distributed on an "AS IS" BASIS,
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14 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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15 ** See the License for the specific language governing permissions and
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16 ** limitations under the License.
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17 *
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18 *****************************************************************************/
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20 // Include automatically generated configuration file if running autoconf.
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21 #ifdef HAVE_CONFIG_H
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22 # include "config_auto.h"
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23 #endif
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25 #include "plotedges.h"
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27 #include "render.h"
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28 #include "split.h"
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30 #ifndef GRAPHICS_DISABLED
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32 namespace tesseract {
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33
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34 /*----------------------------------------------------------------------
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35 V a r i a b l e s
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36 ----------------------------------------------------------------------*/
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37 ScrollView *edge_window = nullptr;
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38
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39 /*----------------------------------------------------------------------
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40 F u n c t i o n s
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41 ----------------------------------------------------------------------*/
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42 /**********************************************************************
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43 * display_edgepts
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44 *
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45 * Macro to display edge points in a window.
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46 **********************************************************************/
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47 void display_edgepts(LIST outlines) {
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48 /* Set up window */
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49 if (edge_window == nullptr) {
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50 edge_window = new ScrollView("Edges", 750, 150, 400, 128, 800, 256, true);
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51 } else {
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52 edge_window->Clear();
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53 }
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54 /* Render the outlines */
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55 auto window = edge_window;
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56 /* Reclaim old memory */
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57 iterate(outlines) {
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58 render_edgepts(window, reinterpret_cast<EDGEPT *>(outlines->first_node()), ScrollView::WHITE);
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59 }
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60 }
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61
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62 /**********************************************************************
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63 * draw_blob_edges
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64 *
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65 * Display the edges of this blob in the edges window.
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66 **********************************************************************/
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67 void draw_blob_edges(TBLOB *blob) {
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68 if (wordrec_display_splits) {
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69 LIST edge_list = NIL_LIST;
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70 for (TESSLINE *ol = blob->outlines; ol != nullptr; ol = ol->next) {
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71 edge_list = push(edge_list, ol->loop);
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72 }
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73 display_edgepts(edge_list);
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74 destroy(edge_list);
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75 }
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76 }
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77
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78 /**********************************************************************
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79 * mark_outline
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80 *
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81 * Make a mark on the edges window at a particular location.
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82 **********************************************************************/
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83 void mark_outline(EDGEPT *edgept) { /* Start of point list */
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84 auto window = edge_window;
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85 float x = edgept->pos.x;
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86 float y = edgept->pos.y;
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87
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88 window->Pen(ScrollView::RED);
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89 window->SetCursor(x, y);
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90
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91 x -= 4;
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92 y -= 12;
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93 window->DrawTo(x, y);
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94
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95 x -= 2;
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96 y += 4;
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97 window->DrawTo(x, y);
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98
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99 x -= 4;
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100 y += 2;
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101 window->DrawTo(x, y);
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102
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103 x += 10;
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104 y += 6;
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parents:
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105 window->DrawTo(x, y);
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parents:
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106
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parents:
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107 window->Update();
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parents:
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108 }
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109
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parents:
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110 } // namespace tesseract
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parents:
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111
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112 #endif // !GRAPHICS_DISABLED