[191] | 1 | // This file is a part of the Framsticks GDK. |
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| 2 | // Copyright (C) 2002-2014 Maciej Komosinski and Szymon Ulatowski. See LICENSE.txt for details. |
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| 3 | // Refer to http://www.framsticks.com/ for further information. |
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| 4 | |
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| 5 | #include "modelgeometryinfo.h" |
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| 6 | #include <frams/model/geometry/geometryutils.h> |
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| 7 | #include <frams/model/geometry/meshbuilder.h> |
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| 8 | |
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| 9 | void ModelGeometryInfo::findSizesAndAxesOfModel(const Model &model, const double density, |
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| 10 | Pt3D &sizes, Orient &axes) |
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| 11 | { |
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| 12 | SListTempl<Pt3D> points; |
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| 13 | MeshBuilder::ModelApices apices(density); |
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| 14 | apices.initialize(&model); |
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| 15 | apices.addAllPointsToList(points); |
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| 16 | GeometryUtils::findSizesAndAxesOfPointsGroup(points, sizes, axes); |
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| 17 | } |
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| 18 | |
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| 19 | bool ModelGeometryInfo::boundingBox(const Model &model, Pt3D &lowerBoundary, Pt3D &upperBoundary) |
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| 20 | { |
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| 21 | if (model.getPartCount() == 0) |
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| 22 | { |
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| 23 | return false; |
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| 24 | } |
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| 25 | |
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| 26 | boundingBox(model.getPart(0), lowerBoundary, upperBoundary); |
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| 27 | |
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| 28 | for (int i = 1; i < model.getPartCount(); i++) |
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| 29 | { |
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| 30 | Pt3D partLowerBoundary, partUpperBoundary; |
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| 31 | boundingBox(model.getPart(i), partLowerBoundary, partUpperBoundary); |
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| 32 | |
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| 33 | lowerBoundary.getMin(partLowerBoundary); |
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| 34 | upperBoundary.getMax(partUpperBoundary); |
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| 35 | } |
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| 36 | |
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| 37 | return true; |
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| 38 | } |
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| 39 | |
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| 40 | void ModelGeometryInfo::boundingBox(const Part *part, Pt3D &lowerBoundary, Pt3D &upperBoundary) |
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| 41 | { |
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| 42 | lowerBoundary.x = upperBoundary.x = part->p.x; |
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| 43 | lowerBoundary.y = upperBoundary.y = part->p.y; |
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| 44 | lowerBoundary.z = upperBoundary.z = part->p.z; |
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| 45 | |
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| 46 | for (Octants::Octant o = Octants::FIRST; o < Octants::NUMBER; o = Octants::Octant(o+1)) |
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| 47 | { |
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| 48 | Pt3D vertex = part->scale; |
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| 49 | vertex.x *= Octants::isPositiveX(o) ? +1 : -1; |
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| 50 | vertex.y *= Octants::isPositiveY(o) ? +1 : -1; |
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| 51 | vertex.z *= Octants::isPositiveZ(o) ? +1 : -1; |
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| 52 | |
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| 53 | vertex = part->o.transform(vertex) + part->p; |
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| 54 | |
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| 55 | lowerBoundary.getMin(vertex); |
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| 56 | upperBoundary.getMax(vertex); |
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| 57 | } |
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| 58 | } |
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| 59 | |
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| 60 | double ModelGeometryInfo::volume(const Model &model, const double density) |
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| 61 | { |
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| 62 | Pt3D lowerBoundary, upperBoundary; |
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| 63 | boundingBox(model, lowerBoundary, upperBoundary); |
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| 64 | |
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| 65 | MeshBuilder::BoundingBoxVolume iterator(density); |
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| 66 | iterator.initialize(lowerBoundary, upperBoundary); |
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| 67 | |
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| 68 | Pt3D point; |
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| 69 | int allPoints = 0, pointsInsideModel = 0; |
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| 70 | |
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| 71 | while (iterator.tryGetNext(point)) |
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| 72 | { |
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| 73 | allPoints += 1; |
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| 74 | pointsInsideModel += GeometryUtils::isPointInsideModel(point, model) ? 1 : 0; |
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| 75 | } |
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| 76 | |
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| 77 | double boundingBoxVolume |
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| 78 | = (upperBoundary.x - lowerBoundary.x) |
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| 79 | * (upperBoundary.y - lowerBoundary.y) |
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| 80 | * (upperBoundary.z - lowerBoundary.z); |
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| 81 | |
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| 82 | return boundingBoxVolume * (double)pointsInsideModel / (double)allPoints; |
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| 83 | } |
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| 84 | |
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| 85 | double ModelGeometryInfo::area(const Model &model, const double density) |
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| 86 | { |
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| 87 | double area = 0.0; |
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| 88 | |
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| 89 | for (int partIndex = 0; partIndex < model.getPartCount(); partIndex+=1) |
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| 90 | { |
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| 91 | area += externalAreaOfPart(model, partIndex, density); |
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| 92 | } |
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| 93 | |
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| 94 | return area; |
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| 95 | } |
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| 96 | |
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| 97 | double ModelGeometryInfo::externalAreaOfPart(const Model &model, const int partIndex, const double density) |
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| 98 | { |
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| 99 | switch (model.getPart(partIndex)->shape) |
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| 100 | { |
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| 101 | case Part::SHAPE_ELLIPSOID: |
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| 102 | return externalAreaOfEllipsoid(model, partIndex, density); |
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| 103 | |
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| 104 | case Part::SHAPE_CUBOID: |
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| 105 | return externalAreaOfCuboid(model, partIndex, density); |
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| 106 | |
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| 107 | case Part::SHAPE_CYLINDER: |
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| 108 | return externalAreaOfCylinder(model, partIndex, density); |
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| 109 | } |
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[234] | 110 | return 0; |
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[191] | 111 | } |
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| 112 | |
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| 113 | double externalAreaOfSurface(const Model &model, const int partIndex, MeshBuilder::Iterator &surface, const double area) |
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| 114 | { |
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| 115 | Pt3D point; |
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| 116 | int all = 0, sur = 0; |
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| 117 | |
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| 118 | while (surface.tryGetNext(point)) |
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| 119 | { |
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| 120 | all += 1; |
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| 121 | sur += GeometryUtils::isPointInsideModelExcludingPart(point, &model, partIndex) ? 0 : 1; |
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| 122 | } |
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| 123 | |
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| 124 | return sur * area / all; |
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| 125 | } |
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| 126 | |
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| 127 | double ModelGeometryInfo::externalAreaOfEllipsoid(const Model &model, const int partIndex, const double density) |
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| 128 | { |
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| 129 | Part *part = model.getPart(partIndex); |
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| 130 | |
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| 131 | MeshBuilder::EllipsoidSurface ellipsoid(density); |
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| 132 | ellipsoid.initialize(part); |
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| 133 | |
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| 134 | double area = GeometryUtils::ellipsoidArea(part->scale); |
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| 135 | |
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| 136 | return externalAreaOfSurface(model, partIndex, ellipsoid, area); |
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| 137 | } |
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| 138 | |
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| 139 | double ModelGeometryInfo::externalAreaOfCuboid(const Model &model, const int partIndex, const double density) |
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| 140 | { |
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| 141 | Part *part = model.getPart(partIndex); |
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| 142 | |
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| 143 | double externalArea = 0.0; |
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| 144 | |
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| 145 | MeshBuilder::RectangleSurface rectangle(density); |
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| 146 | |
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| 147 | for (CuboidFaces::Face f = CuboidFaces::FIRST; f < CuboidFaces::NUMBER; f = CuboidFaces::Face(f+1)) |
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| 148 | { |
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| 149 | rectangle.initialize(part, f); |
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| 150 | |
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| 151 | double area = 4.0; |
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| 152 | area *= !CuboidFaces::isX(f) ? part->scale.x : 1.0; |
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| 153 | area *= !CuboidFaces::isY(f) ? part->scale.y : 1.0; |
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| 154 | area *= !CuboidFaces::isZ(f) ? part->scale.z : 1.0; |
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| 155 | |
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| 156 | externalArea += externalAreaOfSurface(model, partIndex, rectangle, area); |
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| 157 | } |
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| 158 | |
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| 159 | return externalArea; |
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| 160 | } |
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| 161 | |
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| 162 | double ModelGeometryInfo::externalAreaOfCylinder(const Model &model, const int partIndex, const double density) |
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| 163 | { |
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| 164 | Part *part = model.getPart(partIndex); |
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| 165 | |
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| 166 | double externalArea = 0.0; |
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| 167 | |
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| 168 | MeshBuilder::EllipseSurface ellipse(density); |
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| 169 | |
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| 170 | double area = M_PI * part->scale.y * part->scale.z; |
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| 171 | |
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| 172 | for (CylinderBases::Base b = CylinderBases::FIRST; b < CylinderBases::NUMBER; b = CylinderBases::Base(b+1)) |
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| 173 | { |
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| 174 | ellipse.initialize(part, b); |
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| 175 | |
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| 176 | externalArea += externalAreaOfSurface(model, partIndex, ellipse, area); |
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| 177 | } |
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| 178 | |
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| 179 | MeshBuilder::CylinderWallSurface cylinderWall(density); |
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| 180 | cylinderWall.initialize(part); |
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| 181 | |
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| 182 | area = 2.0*part->scale.x * GeometryUtils::ellipsePerimeter(part->scale.y, part->scale.z); |
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| 183 | |
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| 184 | externalArea += externalAreaOfSurface(model, partIndex, cylinderWall, area); |
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| 185 | |
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| 186 | return externalArea; |
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| 187 | } |
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