comparison: bbox.cpp
bbox.cpp
- changeset 183
- f1b8cb53d2a2
- parent 182
- 9374fea8f77f
- child 184
- fae3bc9ce319
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| 182:9374fea8f77f | 183:f1b8cb53d2a2 |
|---|---|
| 1 /* | |
| 2 * LDForge: LDraw parts authoring CAD | |
| 3 * Copyright (C) 2013 Santeri 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 "common.h" | |
| 20 #include "bbox.h" | |
| 21 #include "ldtypes.h" | |
| 22 #include "file.h" | |
| 23 | |
| 24 // ============================================================================= | |
| 25 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * | |
| 26 // ============================================================================= | |
| 27 bbox::bbox () { | |
| 28 reset (); | |
| 29 } | |
| 30 | |
| 31 // ============================================================================= | |
| 32 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * | |
| 33 // ============================================================================= | |
| 34 void bbox::calculate () { | |
| 35 reset (); | |
| 36 | |
| 37 if (!g_curfile) | |
| 38 return; | |
| 39 | |
| 40 for (LDObject* obj : g_curfile->m_objs) | |
| 41 calcObject (obj); | |
| 42 } | |
| 43 | |
| 44 // ============================================================================= | |
| 45 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * | |
| 46 // ============================================================================= | |
| 47 void bbox::calcObject (LDObject* obj) { | |
| 48 switch (obj->getType ()) { | |
| 49 case LDObject::Line: | |
| 50 { | |
| 51 LDLine* line = static_cast<LDLine*> (obj); | |
| 52 for (short i = 0; i < 2; ++i) | |
| 53 calcVertex (line->vaCoords[i]); | |
| 54 } | |
| 55 break; | |
| 56 | |
| 57 case LDObject::Triangle: | |
| 58 { | |
| 59 LDTriangle* tri = static_cast<LDTriangle*> (obj); | |
| 60 for (short i = 0; i < 3; ++i) | |
| 61 calcVertex (tri->vaCoords[i]); | |
| 62 } | |
| 63 break; | |
| 64 | |
| 65 case LDObject::Quad: | |
| 66 { | |
| 67 LDQuad* quad = static_cast<LDQuad*> (obj); | |
| 68 for (short i = 0; i < 4; ++i) | |
| 69 calcVertex (quad->vaCoords[i]); | |
| 70 } | |
| 71 break; | |
| 72 | |
| 73 case LDObject::CondLine: | |
| 74 { | |
| 75 LDCondLine* line = static_cast<LDCondLine*> (obj); | |
| 76 for (short i = 0; i < 4; ++i) | |
| 77 calcVertex (line->vaCoords[i]); | |
| 78 } | |
| 79 break; | |
| 80 | |
| 81 case LDObject::Subfile: | |
| 82 { | |
| 83 LDSubfile* ref = static_cast<LDSubfile*> (obj); | |
| 84 vector<LDObject*> objs = ref->inlineContents (true, true); | |
| 85 | |
| 86 for (LDObject* obj : objs) { | |
| 87 calcObject (obj); | |
| 88 delete obj; | |
| 89 } | |
| 90 } | |
| 91 break; | |
| 92 | |
| 93 case LDObject::Radial: | |
| 94 { | |
| 95 LDRadial* rad = static_cast<LDRadial*> (obj); | |
| 96 vector<LDObject*> objs = rad->decompose (true); | |
| 97 | |
| 98 for (LDObject* obj : objs) { | |
| 99 calcObject (obj); | |
| 100 delete obj; | |
| 101 } | |
| 102 } | |
| 103 break; | |
| 104 | |
| 105 default: | |
| 106 break; | |
| 107 } | |
| 108 } | |
| 109 | |
| 110 // ============================================================================= | |
| 111 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * | |
| 112 // ============================================================================= | |
| 113 void bbox::calcVertex (vertex v) { | |
| 114 for (const Axis ax : g_Axes) { | |
| 115 if (v[ax] < m_v0[ax]) | |
| 116 m_v0[ax] = v[ax]; | |
| 117 | |
| 118 if (v[ax] > m_v1[ax]) | |
| 119 m_v1[ax] = v[ax]; | |
| 120 } | |
| 121 | |
| 122 m_empty = false; | |
| 123 } | |
| 124 | |
| 125 // ============================================================================= | |
| 126 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * | |
| 127 // ============================================================================= | |
| 128 void bbox::reset () { | |
| 129 m_v0[X] = m_v0[Y] = m_v0[Z] = +0x7FFFFFFF; | |
| 130 m_v1[X] = m_v1[Y] = m_v1[Z] = -0x7FFFFFFF; | |
| 131 | |
| 132 m_empty = true; | |
| 133 } | |
| 134 | |
| 135 // ============================================================================= | |
| 136 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * | |
| 137 // ============================================================================= | |
| 138 double bbox::size () const { | |
| 139 double fXScale = (m_v0[X] - m_v1[X]); | |
| 140 double fYScale = (m_v0[Y] - m_v1[Y]); | |
| 141 double fZScale = (m_v0[Z] - m_v1[Z]); | |
| 142 double fSize = fZScale; | |
| 143 | |
| 144 if (fXScale > fYScale) { | |
| 145 if (fXScale > fZScale) | |
| 146 fSize = fXScale; | |
| 147 } else if (fYScale > fZScale) | |
| 148 fSize = fYScale; | |
| 149 | |
| 150 if (abs (fSize) >= 2.0f) | |
| 151 return abs (fSize / 2); | |
| 152 | |
| 153 return 1.0f; | |
| 154 } | |
| 155 | |
| 156 // ============================================================================= | |
| 157 vertex bbox::center () const { | |
| 158 return vertex ( | |
| 159 (m_v0[X] + m_v1[X]) / 2, | |
| 160 (m_v0[Y] + m_v1[Y]) / 2, | |
| 161 (m_v0[Z] + m_v1[Z]) / 2); | |
| 162 } | |
| 163 | |
| 164 // ============================================================================= | |
| 165 bool bbox::empty() const { | |
| 166 return m_empty; | |
| 167 } |
