src/types/boundingbox.cpp

Sat, 02 Jul 2022 19:05:05 +0300

author
Teemu Piippo <teemu.s.piippo@gmail.com>
date
Sat, 02 Jul 2022 19:05:05 +0300
changeset 316
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parent 264
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permissions
-rw-r--r--

Allow make a cylinder even if the world position is not on grid

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1 /*
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2 * LDForge: LDraw parts authoring CAD
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3 * Copyright (C) 2013 - 2019 Teemu Piippo
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4 *
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5 * This program is free software: you can redistribute it and/or modify
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6 * it under the terms of the GNU General Public License as published by
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7 * the Free Software Foundation, either version 3 of the License, or
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8 * (at your option) any later version.
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9 *
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10 * This program is distributed in the hope that it will be useful,
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 * GNU General Public License for more details.
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14 *
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15 * You should have received a copy of the GNU General Public License
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16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 */
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18
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76a025db4948 Convert all includes to be relative to project root directory. Files that cannot be found in this manner use angle brackets.
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19 #include "src/types/boundingbox.h"
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21 /**
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22 * @brief Resizes @c box so that @c vertex fits inside
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23 * @param box
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24 * @param vertex
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25 */
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26 void addPointToBox(BoundingBox &box, const glm::vec3 &vertex)
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27 {
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28 box.minimum.x = std::min(vertex.x, box.minimum.x);
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29 box.minimum.y = std::min(vertex.y, box.minimum.y);
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30 box.minimum.z = std::min(vertex.z, box.minimum.z);
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31 box.maximum.x = std::max(vertex.x, box.maximum.x);
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32 box.maximum.y = std::max(vertex.y, box.maximum.y);
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33 box.maximum.z = std::max(vertex.z, box.maximum.z);
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34 }
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35
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36 /*
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37 * Returns the length of the bounding box on the longest measure.
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38 */
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39 float longestMeasure(const BoundingBox& box)
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40 {
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41 if (box != emptyBoundingBox)
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42 {
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43 const float dx = std::abs(box.minimum.x - box.maximum.x);
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44 const float dy = std::abs(box.minimum.y - box.maximum.y);
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45 const float dz = std::abs(box.minimum.z - box.maximum.z);
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46 const float size = std::max(std::max(dx, dy), dz);
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47 return std::max(size / 2.0f, 1.0f);
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48 }
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49 else
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50 {
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51 return 0.0f;
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52 }
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53 }
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56 /*
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57 * Yields the center of the bounding box.
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58 */
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59 glm::vec3 boxCenter(const BoundingBox& box)
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60 {
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61 if (box != emptyBoundingBox)
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62 {
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63 return {
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64 (box.minimum.x + box.maximum.x) / 2,
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65 (box.minimum.y + box.maximum.y) / 2,
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66 (box.minimum.z + box.maximum.z) / 2
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67 };
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68 }
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69 else
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70 {
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71 return glm::vec3{0, 0, 0};
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72 }
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73 }
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75 /*
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76 * Returns the length of the bounding box's space diagonal.
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77 */
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78 float spaceDiagonal(const BoundingBox& box)
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79 {
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80 return glm::distance(box.minimum, box.maximum);
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81 }
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82
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83 bool operator==(const BoundingBox &box_1, const BoundingBox &box_2)
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84 {
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85 return box_1.minimum == box_2.minimum and box_1.maximum == box_2.maximum;
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86 }
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87
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88 bool operator!=(const BoundingBox &box_1, const BoundingBox &box_2)
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89 {
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90 return not (box_1 == box_2);
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91 }

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