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Incorporate profile in FixedRefSolid, some attempt at DirectrixDerived

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This commit is contained in:
Thomas Krijnen
2024-04-12 10:24:24 +02:00
parent 7b296629d6
commit 44deaedccc
1 changed files with 31 additions and 10 deletions
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src/ifcgeom/mapping/IfcFixedReferenceSweptAreaSolid.cpp
+31 -10
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@@ -74,22 +74,43 @@ taxonomy::ptr mapping::map_impl(const IfcSchema::IfcFixedReferenceSweptAreaSolid
std::wcout << s.c_str() << std::endl;
*/
Eigen::Vector3d tangent = m4.col(0).head<3>().normalized();
Eigen::Vector3d proj = (ref->components() - tangent * tangent.dot(ref->components()));
proj.normalize();
auto ref = proj.cross(tangent);
Eigen::Matrix4d m4b = Eigen::Matrix4d::Identity();
bool is_directrix_derived = false;
#ifdef SCHEMA_HAS_IfcDirectrixDerivedReferenceSweptAreaSolid
if (inst->as<IfcSchema::IfcDirectrixDerivedReferenceSweptAreaSolid>()) {
is_directrix_derived = true;
}
#endif
auto pos = m4.col(3).head<3>();
Eigen::Matrix4d m4b = Eigen::Matrix4d::Identity();
m4b.col(0).head<3>() = ref;
m4b.col(1).head<3>() = proj;
m4b.col(2).head<3>() = tangent;
m4b.col(3).head<3>() = pos;
if (is_directrix_derived) {
m4b.col(0).head<3>() = m4.col(2).head<3>().cross(m4.col(0).head<3>());
m4b.col(1).head<3>() = m4.col(2).head<3>();
m4b.col(2).head<3>() = m4.col(0).head<3>();
m4b.col(3).head<3>() = pos;
} else {
Eigen::Vector3d tangent = m4.col(0).head<3>().normalized();
Eigen::Vector3d proj = (ref->components() - tangent * tangent.dot(ref->components()));
proj.normalize();
auto ref = proj.cross(tangent);
m4b.col(0).head<3>() = ref;
m4b.col(1).head<3>() = proj;
m4b.col(2).head<3>() = tangent;
m4b.col(3).head<3>() = pos;
}
// @todo taxonomy::clone() does not actually clone. That's really confusing.
// loft->children.push_back(taxonomy::clone(profile));
loft->children.push_back(taxonomy::face::ptr(profile->clone_()));
loft->children.back()->matrix = taxonomy::make<taxonomy::matrix4>(m4b);
loft->children.back()->matrix = taxonomy::make<taxonomy::matrix4>();
if (profile->matrix) {
loft->children.back()->matrix->components() = (m4b * profile->matrix->ccomponents()).eval();
} else {
loft->children.back()->matrix->components() = m4b;
}
}
}