void beam::calc()
{
double k=leng/100.0;
for(int i=0;i<101;i++){
bend[i]=bending(i*k);
Fsy[i]=neili(i*k);
innerMz[i]=wanju(i*k);
}
}
bool ThinPlateRenderer::visualization() {
if (!this->m_provider) {
_GT_LOGGER_ERR(this->name(), "Subroutine <visualization> failed. Missing provider.");
return (false);
}
if (!this->m_provider->model()) {
_GT_LOGGER_ERR(this->name(), "Subroutine <visualization> failed. Missing model.");
return (false);
}
const openmesh::Mesh &mesh(this->m_provider->model()->mesh());
const ThinPlateProvider *provider = (const ThinPlateProvider *)this->m_provider;
const Provider::Vertices::DataType &control_vertices(provider->controlVertices().data());
const eigen::Matrix &weight(provider->weight());
const eigen::Matrix &transformation(provider->transformation());
osg::ref_ptr<osg::Group> group = new osg::Group();
// Computes bending coordinates.
eigen::Matrix3xN coordinates(3, mesh.n_vertices());
eigen::Vector dists(control_vertices.size());
eigen::Vector coord = eigen::Vector::Ones(4);
for (size_t i = 0; i < mesh.n_vertices(); ++i) {
const openmesh::Point &point(mesh.point(mesh.vertex_handle(i)));
for (size_t j = 0; j < control_vertices.size(); ++j) {
dists(j) = (point - mesh.point(mesh.vertex_handle(control_vertices[j]))).length();
}
coord.bottomRows<3>() = algo::Util::toVector3(point);
eigen::Vector bending = coord.transpose() * transformation - dists.transpose() * weight;
coordinates.col(i) = bending.bottomRows<3>() / bending(0);
}
// Builds mesh with vertex positions representing bending coordinates.
osg::ref_ptr<osg::Vec3Array> model_vertex_array = new osg::Vec3Array();
model_vertex_array->reserve(mesh.n_vertices());
osg::ref_ptr<osg::Vec3Array> model_normal_array = new osg::Vec3Array();
model_normal_array->reserve(mesh.n_vertices());
for (openmesh::Mesh::ConstVertexIter cv_iter = mesh.vertices_begin(); cv_iter != mesh.vertices_end(); ++cv_iter) {
model_vertex_array->push_back(algo::Util::toVec3(coordinates.col(cv_iter.handle().idx())));
model_normal_array->push_back(algo::Util::toVec3(mesh.normal(cv_iter.handle())));
}
osg::ref_ptr<osg::Vec4Array> model_color_array = new osg::Vec4Array();
model_color_array->push_back(osg::Vec4(1.0f, 0.0f, 0.0f, 0.0f));
osg::ref_ptr<osg::DrawElementsUInt> model_primitives = new osg::DrawElementsUInt(osg::PrimitiveSet::Mode::TRIANGLES, 0);
model_primitives->reserve(mesh.n_faces() * 3);
for (openmesh::Mesh::ConstFaceIter cf_iter = mesh.faces_begin(); cf_iter != mesh.faces_end(); ++cf_iter) {
openmesh::Mesh::ConstFaceVertexIter cfv_iter = mesh.cfv_iter(cf_iter.handle());
model_primitives->push_back(( cfv_iter).handle().idx());
model_primitives->push_back((++cfv_iter).handle().idx());
model_primitives->push_back((++cfv_iter).handle().idx());
}
osg::ref_ptr<osg::Geometry> model_geometry = new osg::Geometry();
model_geometry->setVertexArray(model_vertex_array);
model_geometry->setNormalArray(model_normal_array);
model_geometry->setNormalBinding(osg::Geometry::AttributeBinding::BIND_PER_VERTEX);
model_geometry->setColorArray(model_color_array);
model_geometry->setColorBinding(osg::Geometry::AttributeBinding::BIND_OVERALL);
model_geometry->addPrimitiveSet(model_primitives);
osg::ref_ptr<osg::Geode> model_geode = new osg::Geode();
model_geode->addDrawable(model_geometry);
group->addChild(model_geode);
// Appends mesh faces.
osg::ref_ptr<osg::Material> mesh_material = new osg::Material();
mesh_material->setAmbient(osg::Material::Face::FRONT_AND_BACK, osg::Vec4(0.0f, 1.0f, 0.0f, 1.0f));
mesh_material->setDiffuse(osg::Material::Face::FRONT_AND_BACK, osg::Vec4(0.0f, 1.0f, 0.0f, 1.0f));
mesh_material->setSpecular(osg::Material::Face::FRONT_AND_BACK, osg::Vec4(0.0f, 0.0f, 0.0f, 1.0f));
mesh_material->setEmission(osg::Material::Face::FRONT_AND_BACK, osg::Vec4(0.0f, 0.0f, 0.0f, 0.0f));
mesh_material->setShininess(osg::Material::Face::FRONT_AND_BACK, 1.0f);
osg::ref_ptr<osg::Group> mesh_group = new osg::Group();
mesh_group->addChild(provider->model()->node().faces());
mesh_group->getOrCreateStateSet()->setAttribute(mesh_material, osg::StateAttribute::Values::ON | osg::StateAttribute::Values::OVERRIDE);
group->addChild(mesh_group);
this->m_node->removeChildren(0, this->m_node->getNumChildren());
this->m_node->addChild(group);
this->m_node->dirtyBound();
return (true);
}
