comparison: src/types/boundingbox.cpp
src/types/boundingbox.cpp
- changeset 19
- ed9685f44ab3
- child 20
- cef43609a374
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| 18:918b6c0f8b5b | 19:ed9685f44ab3 |
|---|---|
| 1 /* | |
| 2 * LDForge: LDraw parts authoring CAD | |
| 3 * Copyright (C) 2013 - 2019 Teemu Piippo | |
| 4 * | |
| 5 * This program is free software: you can redistribute it and/or modify | |
| 6 * it under the terms of the GNU General Public License as published by | |
| 7 * the Free Software Foundation, either version 3 of the License, or | |
| 8 * (at your option) any later version. | |
| 9 * | |
| 10 * This program is distributed in the hope that it will be useful, | |
| 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 * GNU General Public License for more details. | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License | |
| 16 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 17 */ | |
| 18 | |
| 19 #include "boundingbox.h" | |
| 20 | |
| 21 BoundingBox& BoundingBox::operator<<(const Point3D& vertex) | |
| 22 { | |
| 23 this->consider(vertex); | |
| 24 return *this; | |
| 25 } | |
| 26 | |
| 27 void BoundingBox::consider(const Point3D& vertex) | |
| 28 { | |
| 29 this->minimum.x = std::min(vertex.x, this->minimum.x); | |
| 30 this->minimum.y = std::min(vertex.y, this->minimum.y); | |
| 31 this->minimum.z = std::min(vertex.z, this->minimum.z); | |
| 32 this->maximum.x = std::max(vertex.x, this->maximum.x); | |
| 33 this->maximum.y = std::max(vertex.y, this->maximum.y); | |
| 34 this->maximum.z = std::max(vertex.z, this->maximum.z); | |
| 35 } | |
| 36 | |
| 37 /* | |
| 38 * Returns the length of the bounding box on the longest measure. | |
| 39 */ | |
| 40 double longestMeasure(const BoundingBox& box) | |
| 41 { | |
| 42 double dx = box.minimum.x - box.maximum.x; | |
| 43 double dy = box.minimum.y - box.maximum.y; | |
| 44 double dz = box.minimum.z - box.maximum.z; | |
| 45 double size = std::max(std::max(dx, dy), dz); | |
| 46 return std::max(std::abs(size / 2.0), 1.0); | |
| 47 } | |
| 48 | |
| 49 | |
| 50 /* | |
| 51 * Yields the center of the bounding box. | |
| 52 */ | |
| 53 Point3D center(const BoundingBox& box) | |
| 54 { | |
| 55 return { | |
| 56 (box.minimum.x + box.maximum.x) / 2, | |
| 57 (box.minimum.y + box.maximum.y) / 2, | |
| 58 (box.minimum.z + box.maximum.z) / 2 | |
| 59 }; | |
| 60 } | |
| 61 | |
| 62 /* | |
| 63 * Returns the length of the bounding box's space diagonal. | |
| 64 */ | |
| 65 double spaceDiagonal(const BoundingBox& box) | |
| 66 { | |
| 67 return distance(box.minimum, box.maximum); | |
| 68 } |
