| Directory: | ./ |
|---|---|
| File: | src/parsers/mjcf/mjcf-graph-geom.cpp |
| Date: | 2025-02-12 21:03:38 |
| Exec | Total | Coverage | |
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| Lines: | 236 | 291 | 81.1% |
| Branches: | 383 | 834 | 45.9% |
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| 1 | // | ||
| 2 | // Copyright (c) 2016-2024 CNRS INRIA | ||
| 3 | // | ||
| 4 | |||
| 5 | #include "pinocchio/parsers/mjcf/mjcf-graph.hpp" | ||
| 6 | #ifdef PINOCCHIO_WITH_HPP_FCL | ||
| 7 | |||
| 8 | #include <hpp/fcl/mesh_loader/loader.h> | ||
| 9 | #include <hpp/fcl/mesh_loader/assimp.h> | ||
| 10 | |||
| 11 | #endif // PINOCCHIO_WITH_HPP_FCL | ||
| 12 | |||
| 13 | namespace pinocchio | ||
| 14 | { | ||
| 15 | namespace mjcf | ||
| 16 | { | ||
| 17 | namespace details | ||
| 18 | { | ||
| 19 | 46 | static double computeVolume(const Eigen::VectorXd & size, const std::string & geomType) | |
| 20 | { | ||
| 21 | 46 | double pi = boost::math::constants::pi<double>(); | |
| 22 |
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46 | if (geomType == "box") |
| 23 | { | ||
| 24 | 6 | return size.prod(); | |
| 25 | } | ||
| 26 |
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40 | else if (geomType == "cylinder") |
| 27 | { | ||
| 28 | 8 | return 2 * pi * std::pow(size(0), 2) * size(1); | |
| 29 | } | ||
| 30 |
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32 | else if (geomType == "sphere") |
| 31 | { | ||
| 32 | 3 | return 4.0 / 3 * pi * std::pow(size(0), 3); | |
| 33 | } | ||
| 34 |
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29 | else if (geomType == "capsule") |
| 35 | { | ||
| 36 | 24 | return 4.0 / 3 * pi * std::pow(size(0), 3) + 2 * pi * std::pow(size(0), 2) * size(1); | |
| 37 | } | ||
| 38 |
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5 | else if (geomType == "ellipsoid") |
| 39 | { | ||
| 40 | 5 | return 4.0 / 3 * pi * size.prod(); | |
| 41 | } | ||
| 42 | else | ||
| 43 | { | ||
| 44 | ✗ | throw std::invalid_argument("geometry type does not exist"); | |
| 45 | } | ||
| 46 | } | ||
| 47 | |||
| 48 | 5 | bool isType(const MjcfGeom & geom, const GeometryType & type) | |
| 49 | { | ||
| 50 |
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5 | switch (type) |
| 51 | { | ||
| 52 | 5 | case ::pinocchio::COLLISION: | |
| 53 | 5 | return geom.geomKind != MjcfGeom::VISUAL; | |
| 54 | ✗ | default: | |
| 55 | case ::pinocchio::VISUAL: | ||
| 56 | ✗ | return geom.geomKind != MjcfGeom::COLLISION; | |
| 57 | } | ||
| 58 | } | ||
| 59 | |||
| 60 | /** | ||
| 61 | * @brief Get a fcl::CollisionObject from an mjcf geometry, searching | ||
| 62 | * for it in specified package directories | ||
| 63 | * | ||
| 64 | * @param[in] geom A mjcf geometry object | ||
| 65 | * @return A shared pointer on the geometry converted as a fcl::CollisionGeometry | ||
| 66 | */ | ||
| 67 | #ifdef PINOCCHIO_WITH_HPP_FCL | ||
| 68 | 5 | static std::shared_ptr<fcl::CollisionGeometry> retrieveCollisionGeometry( | |
| 69 | ::hpp::fcl::MeshLoaderPtr & meshLoader, | ||
| 70 | const MjcfGeom & geom, | ||
| 71 | const MjcfGraph & currentGraph, | ||
| 72 | std::string & meshPath, | ||
| 73 | Eigen::Vector3d & meshScale) | ||
| 74 | { | ||
| 75 |
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5 | if (geom.geomType == "mesh") |
| 76 | { | ||
| 77 | ✗ | MjcfMesh currentMesh = currentGraph.mapOfMeshes.at(geom.meshName); | |
| 78 | ✗ | if (currentMesh.vertices.size() > 0) | |
| 79 | { | ||
| 80 | ✗ | auto vertices = currentMesh.vertices; | |
| 81 | // Scale vertices | ||
| 82 | ✗ | for (std::size_t i = 0; i < vertices.rows(); ++i) | |
| 83 | ✗ | vertices.row(i) = vertices.row(i).cwiseProduct(currentMesh.scale.transpose()); | |
| 84 | ✗ | auto model = std::make_shared<hpp::fcl::BVHModel<fcl::OBBRSS>>(); | |
| 85 | ✗ | model->beginModel(); | |
| 86 | ✗ | model->addVertices(vertices); | |
| 87 | ✗ | model->endModel(); | |
| 88 | ✗ | model->buildConvexHull(true, "Qt"); | |
| 89 | ✗ | return model->convex; | |
| 90 | } | ||
| 91 | ✗ | meshPath = currentMesh.filePath; | |
| 92 | ✗ | meshScale = currentMesh.scale; | |
| 93 | ✗ | hpp::fcl::BVHModelPtr_t bvh = meshLoader->load(meshPath, meshScale); | |
| 94 | ✗ | return bvh; | |
| 95 | } | ||
| 96 |
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5 | else if (geom.geomType == "cylinder") |
| 97 | { | ||
| 98 |
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1 | meshPath = "CYLINDER"; |
| 99 |
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1 | meshScale << 1, 1, 1; |
| 100 |
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1 | double radius = geom.size(0); |
| 101 |
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1 | double height = geom.size(1) * 2; |
| 102 |
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1 | return std::make_shared<fcl::Cylinder>(radius, height); |
| 103 | } | ||
| 104 |
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4 | else if (geom.geomType == "box") |
| 105 | { | ||
| 106 |
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1 | meshPath = "BOX"; |
| 107 |
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1 | meshScale << 1, 1, 1; |
| 108 |
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1 | double x = geom.size(0); |
| 109 |
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1 | double y = geom.size(1); |
| 110 |
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1 | double z = geom.size(2); |
| 111 |
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1 | return std::make_shared<fcl::Box>(x, y, z); |
| 112 | } | ||
| 113 |
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3 | else if (geom.geomType == "sphere") |
| 114 | { | ||
| 115 |
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1 | meshPath = "SPHERE"; |
| 116 |
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1 | meshScale << 1, 1, 1; |
| 117 |
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1 | double radius = geom.size(0); |
| 118 |
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1 | return std::make_shared<fcl::Sphere>(radius); |
| 119 | } | ||
| 120 |
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2 | else if (geom.geomType == "ellipsoid") |
| 121 | { | ||
| 122 |
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1 | meshPath = "ELLIPSOID"; |
| 123 |
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1 | meshScale << 1, 1, 1; |
| 124 |
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1 | double rx = geom.size(0); |
| 125 |
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1 | double ry = geom.size(1); |
| 126 |
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1 | double rz = geom.size(2); |
| 127 |
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1 | return std::make_shared<fcl::Ellipsoid>(rx, ry, rz); |
| 128 | } | ||
| 129 |
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1 | else if (geom.geomType == "capsule") |
| 130 | { | ||
| 131 |
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1 | meshPath = "CAPSULE"; |
| 132 |
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1 | meshScale << 1, 1, 1; |
| 133 |
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1 | double radius = geom.size(0); |
| 134 |
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1 | double height = geom.size(1) * 2; |
| 135 |
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1 | return std::make_shared<fcl::Capsule>(radius, height); |
| 136 | } | ||
| 137 | else | ||
| 138 | ✗ | throw std::invalid_argument("Unknown geometry type :"); // Missing plane, hfield and sdf | |
| 139 | } | ||
| 140 | #else | ||
| 141 | static std::shared_ptr<fcl::CollisionGeometry> retrieveCollisionGeometry( | ||
| 142 | ::hpp::fcl::MeshLoaderPtr &, | ||
| 143 | const MjcfGeom &, | ||
| 144 | const MjcfGraph &, | ||
| 145 | std::string &, | ||
| 146 | Eigen::Vector3d &) | ||
| 147 | { | ||
| 148 | return std::make_shared<fcl::CollisionGeometry>(); | ||
| 149 | } | ||
| 150 | #endif | ||
| 151 | |||
| 152 | /// @brief Add all geometries associated with a body | ||
| 153 | /// @param currentBody Body from which geometries will be collected | ||
| 154 | /// @param type Type of geometry to parse (COLLISION or VISUAL) | ||
| 155 | /// @param geomModel geometry model to fill | ||
| 156 | /// @param meshLoader mesh loader from hpp::fcl | ||
| 157 | 29 | static void addLinksToGeomModel( | |
| 158 | const MjcfBody & currentBody, | ||
| 159 | const MjcfGraph & currentGraph, | ||
| 160 | GeometryModel & geomModel, | ||
| 161 | ::hpp::fcl::MeshLoaderPtr & meshLoader, | ||
| 162 | const GeometryType & type) | ||
| 163 | { | ||
| 164 | 29 | const std::string & bodyName = currentBody.bodyName; | |
| 165 |
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29 | FrameIndex frame_id = currentGraph.urdfVisitor.getBodyId(bodyName); |
| 166 |
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29 | Frame frame = currentGraph.urdfVisitor.getBodyFrame(bodyName); |
| 167 | |||
| 168 | 29 | const SE3 & bodyPlacement = frame.placement; | |
| 169 | |||
| 170 | 29 | std::size_t objectId = 0; | |
| 171 |
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34 | for (const auto & geom : currentBody.geomChildren) |
| 172 | { | ||
| 173 |
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5 | std::string meshPath = ""; |
| 174 |
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5 | Eigen::Vector3d meshScale(Eigen::Vector3d::Ones()); |
| 175 |
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5 | if (isType(geom, type)) |
| 176 | { | ||
| 177 | const GeometryObject::CollisionGeometryPtr geometry = | ||
| 178 |
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5 | retrieveCollisionGeometry(meshLoader, geom, currentGraph, meshPath, meshScale); |
| 179 | |||
| 180 | 5 | bool overrideMaterial = false; | |
| 181 |
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5 | Eigen::Vector4d meshColor = geom.rgba; |
| 182 | 5 | std::string texturePath; | |
| 183 |
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5 | if (!geom.materialName.empty()) |
| 184 | { | ||
| 185 | ✗ | MjcfMaterial mat = currentGraph.mapOfMaterials.at(geom.materialName); | |
| 186 | ✗ | meshColor = mat.rgba; | |
| 187 | ✗ | overrideMaterial = true; | |
| 188 | ✗ | if (!mat.texture.empty()) | |
| 189 | { | ||
| 190 | ✗ | MjcfTexture text = currentGraph.mapOfTextures.at(mat.texture); | |
| 191 | ✗ | texturePath = text.filePath; | |
| 192 | } | ||
| 193 | } | ||
| 194 |
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5 | const SE3 geomPlacement = bodyPlacement * geom.geomPlacement; |
| 195 |
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5 | std::ostringstream geometry_object_suffix; |
| 196 |
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5 | geometry_object_suffix << "_" << objectId; |
| 197 |
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5 | std::string geometry_object_name = std::string(bodyName + geometry_object_suffix.str()); |
| 198 | |||
| 199 | GeometryObject geometry_object( | ||
| 200 | geometry_object_name, frame.parentJoint, frame_id, geomPlacement, geometry, meshPath, | ||
| 201 |
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5 | meshScale, overrideMaterial, meshColor, texturePath); |
| 202 |
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5 | geomModel.addGeometryObject(geometry_object); |
| 203 | 5 | ++objectId; | |
| 204 | 5 | } | |
| 205 | 5 | } | |
| 206 | 29 | } | |
| 207 | |||
| 208 | 1 | void MjcfMaterial::goThroughElement(const ptree & el) | |
| 209 | { | ||
| 210 | // texture name | ||
| 211 |
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2 | auto text_s = el.get_optional<std::string>("<xmlattr>.texture"); |
| 212 |
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1 | if (text_s) |
| 213 |
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1 | texture = *text_s; |
| 214 | |||
| 215 | // Emission | ||
| 216 |
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1 | auto single_v = el.get_optional<float>("<xmlattr>.emission"); |
| 217 |
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1 | if (single_v) |
| 218 | ✗ | emission = *single_v; | |
| 219 | |||
| 220 | // Specular | ||
| 221 |
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2 | if ((single_v = el.get_optional<float>("<xmlattr>.specular"))) |
| 222 | ✗ | specular = *single_v; | |
| 223 | |||
| 224 | // Shininess | ||
| 225 |
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2 | if ((single_v = el.get_optional<float>("<xmlattr>.shininess"))) |
| 226 | ✗ | shininess = *single_v; | |
| 227 | |||
| 228 |
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2 | if ((single_v = el.get_optional<float>("<xmlattr>.reflectance"))) |
| 229 | ✗ | reflectance = *single_v; | |
| 230 | |||
| 231 |
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2 | auto rgba_ = el.get_optional<std::string>("<xmlattr>.rgba"); |
| 232 |
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1 | if (rgba_) |
| 233 | ✗ | rgba = internal::getVectorFromStream<4>(*rgba_); | |
| 234 | 1 | } | |
| 235 | |||
| 236 | 107 | void MjcfGeom::goThroughElement(const ptree & el, const MjcfGraph & currentGraph) | |
| 237 | { | ||
| 238 |
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232 | if (el.get_child_optional("<xmlattr>.pos") && el.get_child_optional("<xmlattr>.fromto")) |
| 239 | ✗ | throw std::invalid_argument("Both pos and fromto are defined in geom object"); | |
| 240 | |||
| 241 | // Placement | ||
| 242 |
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107 | geomPlacement = currentGraph.convertPosition(el); |
| 243 | |||
| 244 | // density | ||
| 245 |
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107 | auto value_v = el.get_optional<double>("<xmlattr>.density"); |
| 246 |
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107 | if (value_v) |
| 247 | ✗ | density = *value_v; | |
| 248 | |||
| 249 | // contype | ||
| 250 |
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107 | auto val_v = el.get_optional<int>("<xmlattr>.contype"); |
| 251 |
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107 | if (val_v) |
| 252 |
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57 | contype = *val_v; |
| 253 | // condim | ||
| 254 |
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214 | if ((val_v = el.get_optional<int>("<xmlattr>.conaffinity"))) |
| 255 |
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57 | conaffinity = *val_v; |
| 256 | // group | ||
| 257 |
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214 | if ((val_v = el.get_optional<int>("<xmlattr>.group"))) |
| 258 |
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38 | group = *val_v; |
| 259 | |||
| 260 | // mass | ||
| 261 |
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107 | massGeom = el.get_optional<double>("<xmlattr>.mass"); |
| 262 | |||
| 263 | // shellinertia | ||
| 264 |
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214 | auto value_s = el.get_optional<std::string>("<xmlattr>.shellinertia"); |
| 265 |
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107 | if (value_s) |
| 266 | ✗ | throw std::invalid_argument("Shell inertia computation is not supported yet."); | |
| 267 | |||
| 268 | // type | ||
| 269 |
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214 | if ((value_s = el.get_optional<std::string>("<xmlattr>.type"))) |
| 270 |
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51 | geomType = *value_s; |
| 271 | |||
| 272 | // material name | ||
| 273 |
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214 | if ((value_s = el.get_optional<std::string>("<xmlattr>.material"))) |
| 274 |
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19 | materialName = *value_s; |
| 275 | |||
| 276 |
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107 | if (geomType == "mesh") |
| 277 | { | ||
| 278 |
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4 | value_s = el.get_optional<std::string>("<xmlattr>.mesh"); |
| 279 |
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4 | if (value_s) |
| 280 |
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4 | meshName = *value_s; |
| 281 | } | ||
| 282 | |||
| 283 | // rgba | ||
| 284 |
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214 | if ((value_s = el.get_optional<std::string>("<xmlattr>.rgba"))) |
| 285 | ✗ | rgba = internal::getVectorFromStream<4>(*value_s); | |
| 286 | |||
| 287 | // size | ||
| 288 |
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214 | if ((value_s = el.get_optional<std::string>("<xmlattr>.size"))) |
| 289 |
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46 | sizeS = *value_s; |
| 290 | // fromto | ||
| 291 |
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107 | if (!fromtoS) |
| 292 |
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107 | fromtoS = el.get_optional<std::string>("<xmlattr>.fromto"); |
| 293 |
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214 | if (fromtoS) |
| 294 | { | ||
| 295 |
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24 | Eigen::VectorXd poses = internal::getVectorFromStream<6>(*fromtoS); |
| 296 |
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24 | geomPlacement.translation() = (poses.head(3) + poses.tail(3)) / 2; |
| 297 | |||
| 298 |
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24 | Eigen::Vector3d zaxis = poses.tail(3) - poses.head(3); |
| 299 | // Compute the rotation matrix that maps z_axis to unit z | ||
| 300 |
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24 | geomPlacement.rotation() = |
| 301 |
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48 | Eigen::Quaterniond::FromTwoVectors(Eigen::Vector3d::UnitZ(), zaxis).toRotationMatrix(); |
| 302 | 24 | } | |
| 303 | 107 | } | |
| 304 | |||
| 305 | 50 | void MjcfGeom::findKind() | |
| 306 | { | ||
| 307 | // Common mechanism to set visual only geometry | ||
| 308 |
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50 | if (contype == 0 && conaffinity == 0) |
| 309 | ✗ | geomKind = VISUAL; | |
| 310 |
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50 | else if (group > 2) // Mechanism for Collision only geometries |
| 311 | 19 | geomKind = COLLISION; | |
| 312 | else | ||
| 313 | 31 | geomKind = BOTH; | |
| 314 | 50 | } | |
| 315 | |||
| 316 | 50 | void MjcfGeom::computeSize() | |
| 317 | { | ||
| 318 |
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350 | std::vector<std::string> forbiddenListFromTo = {"plane", "hfield", "mesh", "sphere"}; |
| 319 | 50 | if ( | |
| 320 | fromtoS | ||
| 321 |
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74 | && std::find(forbiddenListFromTo.begin(), forbiddenListFromTo.end(), geomType) |
| 322 |
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174 | != forbiddenListFromTo.end()) |
| 323 | ✗ | throw std::invalid_argument( | |
| 324 | ✗ | "fromto tag can only be used with capsules, boxes, cylinders and ellipsoids"); | |
| 325 | |||
| 326 | // First deal with cases that do not work with fromto | ||
| 327 |
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50 | if (geomType == "sphere") |
| 328 |
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3 | size = internal::getVectorFromStream<1>(sizeS); |
| 329 |
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47 | else if (geomType == "plane") |
| 330 | ✗ | size = internal::getVectorFromStream<3>(sizeS); | |
| 331 |
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47 | else if (geomType == "box") |
| 332 | { | ||
| 333 |
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6 | if (!fromtoS) |
| 334 |
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5 | size = internal::getVectorFromStream<3>(sizeS) * 2; // half x, half y, half z |
| 335 | else | ||
| 336 | { | ||
| 337 |
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1 | size = Eigen::Vector3d::Zero(); |
| 338 |
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1 | size(0) = internal::getVectorFromStream<1>(sizeS)(0) * 2; |
| 339 |
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1 | size(1) = size(0); |
| 340 |
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1 | Eigen::VectorXd poses = internal::getVectorFromStream<6>(*fromtoS); |
| 341 |
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1 | Eigen::Vector3d zaxis = poses.tail(3) - poses.head(3); |
| 342 |
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1 | size(2) = zaxis.norm(); |
| 343 | 1 | } | |
| 344 | } | ||
| 345 |
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41 | else if (geomType == "ellipsoid") |
| 346 | { | ||
| 347 |
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5 | if (!fromtoS) |
| 348 |
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4 | size = internal::getVectorFromStream<3>(sizeS); // radius and half length |
| 349 | else | ||
| 350 | { | ||
| 351 |
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1 | size = Eigen::Vector3d::Zero(); |
| 352 |
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1 | size(0) = internal::getVectorFromStream<1>(sizeS)(0); |
| 353 |
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1 | size(1) = size(0); |
| 354 |
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1 | Eigen::VectorXd poses = internal::getVectorFromStream<6>(*fromtoS); |
| 355 |
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1 | Eigen::Vector3d zaxis = poses.tail(3) - poses.head(3); |
| 356 |
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1 | size(2) = zaxis.norm() / 2; // to get radius; |
| 357 | 1 | } | |
| 358 | } | ||
| 359 |
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36 | else if (geomType == "cylinder" || geomType == "capsule") |
| 360 | { | ||
| 361 |
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32 | if (!fromtoS) |
| 362 |
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10 | size = internal::getVectorFromStream<2>(sizeS); |
| 363 | else | ||
| 364 | { | ||
| 365 |
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22 | size = Eigen::Vector2d::Zero(); |
| 366 |
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22 | size(0) = internal::getVectorFromStream<1>(sizeS)(0); |
| 367 |
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22 | Eigen::VectorXd poses = internal::getVectorFromStream<6>(*fromtoS); |
| 368 |
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22 | Eigen::Vector3d zaxis = poses.tail(3) - poses.head(3); |
| 369 |
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22 | size(1) = zaxis.norm() / 2; // to get half height |
| 370 | 22 | } | |
| 371 | } | ||
| 372 |
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4 | else if (geomType == "mesh") |
| 373 | 4 | return; | |
| 374 | else | ||
| 375 | ✗ | throw std::invalid_argument("geomType does not exist"); | |
| 376 |
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50 | } |
| 377 | |||
| 378 | 50 | void MjcfGeom::computeInertia() | |
| 379 | { | ||
| 380 |
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50 | if (geomType == "mesh" || geomType == "plane" || geomType == "hfield") |
| 381 | 4 | return; | |
| 382 | |||
| 383 | double mass; | ||
| 384 |
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92 | if (massGeom) |
| 385 | ✗ | mass = *massGeom; | |
| 386 | else | ||
| 387 | 46 | mass = computeVolume(size, geomType) * density; | |
| 388 | |||
| 389 |
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46 | if (geomType == "box") |
| 390 | { | ||
| 391 |
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6 | geomInertia = Inertia::FromBox(mass, size(0), size(1), size(2)); |
| 392 | } | ||
| 393 |
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40 | else if (geomType == "cylinder") |
| 394 | { | ||
| 395 |
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8 | geomInertia = Inertia::FromCylinder(mass, size(0), size(1) * 2); |
| 396 | } | ||
| 397 |
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32 | else if (geomType == "ellipsoid") |
| 398 | { | ||
| 399 |
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5 | geomInertia = Inertia::FromEllipsoid(mass, size(0), size(1), size(2)); |
| 400 | } | ||
| 401 |
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27 | else if (geomType == "sphere") |
| 402 | { | ||
| 403 |
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3 | geomInertia = Inertia::FromSphere(mass, size(0)); |
| 404 | } | ||
| 405 |
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24 | else if (geomType == "capsule") |
| 406 | { | ||
| 407 |
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24 | geomInertia = Inertia::FromCapsule(mass, size(0), size(1) * 2); |
| 408 | } | ||
| 409 | else | ||
| 410 | { | ||
| 411 | ✗ | throw std::invalid_argument("Unsupported geometry type"); | |
| 412 | } | ||
| 413 | } | ||
| 414 | |||
| 415 | void | ||
| 416 | 50 | MjcfGeom::fill(const ptree & el, const MjcfBody & currentBody, const MjcfGraph & currentGraph) | |
| 417 | { | ||
| 418 | // Name | ||
| 419 |
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100 | auto name_s = el.get_optional<std::string>("<xmlattr>.name"); |
| 420 |
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50 | if (name_s) |
| 421 |
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8 | geomName = *name_s; |
| 422 | else | ||
| 423 | geomName = | ||
| 424 |
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42 | currentBody.bodyName + "Geom_" + std::to_string(currentBody.geomChildren.size()); |
| 425 | |||
| 426 | // default < ChildClass < Class < Real Joint | ||
| 427 |
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50 | if (currentGraph.mapOfClasses.find("mujoco_default") != currentGraph.mapOfClasses.end()) |
| 428 | { | ||
| 429 |
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21 | const MjcfClass & classD = currentGraph.mapOfClasses.at("mujoco_default"); |
| 430 |
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42 | if (auto geom_p = classD.classElement.get_child_optional("geom")) |
| 431 |
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19 | goThroughElement(*geom_p, currentGraph); |
| 432 | } | ||
| 433 | // childClass | ||
| 434 |
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50 | if (currentBody.childClass != "") |
| 435 | { | ||
| 436 |
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19 | const MjcfClass & classE = currentGraph.mapOfClasses.at(currentBody.childClass); |
| 437 |
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38 | if (auto geom_p = classE.classElement.get_child_optional("geom")) |
| 438 |
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19 | goThroughElement(*geom_p, currentGraph); |
| 439 | } | ||
| 440 | |||
| 441 | // Class | ||
| 442 |
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100 | auto cl_s = el.get_optional<std::string>("<xmlattr>.class"); |
| 443 |
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50 | if (cl_s) |
| 444 | { | ||
| 445 |
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19 | std::string className = *cl_s; |
| 446 |
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19 | const MjcfClass & classE = currentGraph.mapOfClasses.at(className); |
| 447 |
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38 | if (auto geom_p = classE.classElement.get_child_optional("geom")) |
| 448 |
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19 | goThroughElement(*geom_p, currentGraph); |
| 449 | 19 | } | |
| 450 | |||
| 451 | // Geom | ||
| 452 |
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50 | goThroughElement(el, currentGraph); |
| 453 |
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50 | if (geomType == "mesh" && meshName.empty()) |
| 454 | ✗ | throw std::invalid_argument("Type is mesh but no mesh file were provided"); | |
| 455 | // Compute Kind of geometry | ||
| 456 |
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50 | findKind(); |
| 457 | |||
| 458 |
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50 | computeSize(); |
| 459 | |||
| 460 | // Compute Mass and inertia of geom object | ||
| 461 |
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50 | computeInertia(); |
| 462 | 50 | } | |
| 463 | |||
| 464 | 2 | void MjcfSite::goThroughElement(const ptree & el, const MjcfGraph & currentGraph) | |
| 465 | { | ||
| 466 |
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6 | if (el.get_child_optional("<xmlattr>.pos") && el.get_child_optional("<xmlattr>.fromto")) |
| 467 | ✗ | throw std::invalid_argument("Both pos and fromto are defined in site object"); | |
| 468 | |||
| 469 | // Placement | ||
| 470 |
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2 | sitePlacement = currentGraph.convertPosition(el); |
| 471 | |||
| 472 |
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4 | auto fromtoS = el.get_optional<std::string>("<xmlattr>.fromto"); |
| 473 |
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2 | if (fromtoS) |
| 474 | { | ||
| 475 | ✗ | Eigen::VectorXd poses = internal::getVectorFromStream<6>(*fromtoS); | |
| 476 | ✗ | sitePlacement.translation() = (poses.head(3) + poses.tail(3)) / 2; | |
| 477 | |||
| 478 | ✗ | Eigen::Vector3d zaxis = poses.tail(3) - poses.head(3); | |
| 479 | // Compute the rotation matrix that maps z_axis to unit z | ||
| 480 | ✗ | sitePlacement.rotation() = | |
| 481 | ✗ | Eigen::Quaterniond::FromTwoVectors(Eigen::Vector3d::UnitZ(), zaxis).toRotationMatrix(); | |
| 482 | } | ||
| 483 | 2 | } | |
| 484 | |||
| 485 | void | ||
| 486 | 2 | MjcfSite::fill(const ptree & el, const MjcfBody & currentBody, const MjcfGraph & currentGraph) | |
| 487 | { | ||
| 488 | // Name | ||
| 489 |
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4 | auto name_s = el.get_optional<std::string>("<xmlattr>.name"); |
| 490 |
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2 | if (name_s) |
| 491 |
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2 | siteName = *name_s; |
| 492 | else | ||
| 493 | siteName = | ||
| 494 | ✗ | currentBody.bodyName + "Site_" + std::to_string(currentBody.siteChildren.size()); | |
| 495 | |||
| 496 | // default < ChildClass < Class < Real Joint | ||
| 497 |
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2 | if (currentGraph.mapOfClasses.find("mujoco_default") != currentGraph.mapOfClasses.end()) |
| 498 | { | ||
| 499 |
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1 | const MjcfClass & classD = currentGraph.mapOfClasses.at("mujoco_default"); |
| 500 |
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2 | if (auto site_p = classD.classElement.get_child_optional("site")) |
| 501 | ✗ | goThroughElement(*site_p, currentGraph); | |
| 502 | } | ||
| 503 | // childClass | ||
| 504 |
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2 | if (currentBody.childClass != "") |
| 505 | { | ||
| 506 |
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1 | const MjcfClass & classE = currentGraph.mapOfClasses.at(currentBody.childClass); |
| 507 |
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2 | if (auto site_p = classE.classElement.get_child_optional("site")) |
| 508 | ✗ | goThroughElement(*site_p, currentGraph); | |
| 509 | } | ||
| 510 | |||
| 511 | // Class | ||
| 512 |
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4 | auto cl_s = el.get_optional<std::string>("<xmlattr>.class"); |
| 513 |
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2 | if (cl_s) |
| 514 | { | ||
| 515 | ✗ | std::string className = *cl_s; | |
| 516 | ✗ | const MjcfClass & classE = currentGraph.mapOfClasses.at(className); | |
| 517 | ✗ | if (auto site_p = classE.classElement.get_child_optional("site")) | |
| 518 | ✗ | goThroughElement(*site_p, currentGraph); | |
| 519 | } | ||
| 520 | |||
| 521 | // Site | ||
| 522 |
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2 | goThroughElement(el, currentGraph); |
| 523 | 2 | } | |
| 524 | |||
| 525 | 7 | void MjcfGraph::parseGeomTree( | |
| 526 | const GeometryType & type, | ||
| 527 | GeometryModel & geomModel, | ||
| 528 | ::hpp::fcl::MeshLoaderPtr & meshLoader) | ||
| 529 | { | ||
| 530 | #ifdef PINOCCHIO_WITH_HPP_FCL | ||
| 531 |
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7 | if (!meshLoader) |
| 532 |
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7 | meshLoader = std::make_shared<fcl::MeshLoader>(fcl::MeshLoader()); |
| 533 | #endif // ifdef PINOCCHIO_WITH_HPP_FCL | ||
| 534 | |||
| 535 |
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36 | for (const auto & entry : bodiesList) |
| 536 | { | ||
| 537 |
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29 | const MjcfBody & currentBody = mapOfBodies.at(entry); |
| 538 | |||
| 539 |
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29 | addLinksToGeomModel(currentBody, *this, geomModel, meshLoader, type); |
| 540 | } | ||
| 541 | 7 | } | |
| 542 | } // namespace details | ||
| 543 | } // namespace mjcf | ||
| 544 | } // namespace pinocchio | ||
| 545 |