add updateBC

CMakeLists.txt

@@ -367,4 +367,4 @@ add_subdirectory(sim-test/rigid-test)
 # IPC link static simulation
 target_link_libraries(rigid_ipc_sim PUBLIC StaticSim)
 
-add_compile_definitions(DEBUG_SSIM)
+#add_compile_definitions(DEBUG_SSIM)

sim-test/rigid-test/rocker-arm/config.json.in

@@ -0,0 +1,19 @@
+{
+    "material": [1e5, 0.3, 1e3],
+    "mshFilePath": "@LOCAL_DIR@/rocker-arm_.msh",
+
+    "DBC": [
+        {
+            "min": [-0.001, 0.8, 0.8],
+            "max": [1.001, 1.1, 1.1]
+        }
+    ],
+
+    "NBC": [
+        {
+            "min": [-0.001, 0.25, -0.001],
+            "max": [1.001, 0.4, 0.1],
+            "force": [0, -10, 0]
+        }
+    ]
+}

src/viewer/UIStaticMenu.cpp

@@ -171,10 +171,11 @@ namespace ipc::rigid {
                     std::vector<float> v_max_point = {(float) i_DBC.relMaxBBox.x(), (float) i_DBC.relMaxBBox.y(),
                                                       (float) i_DBC.relMaxBBox.z()};
                     ImGui::InputFloat3(("Dirichlet最小值 " + std::to_string(i + 1)).c_str(), v_min_point.data());
-                    ImGui::InputFloat3(("Dirichlet最大值 " + std::to_string(i + 1)).c_str(), v_min_point.data());
+                    ImGui::InputFloat3(("Dirichlet最大值 " + std::to_string(i + 1)).c_str(), v_max_point.data());
                     i_DBC.relMinBBox = {v_min_point[0], v_min_point[1], v_min_point[2]};
                     i_DBC.relMaxBBox = {v_max_point[0], v_max_point[1], v_max_point[2]};
                 }
+                sp_StaticSim_->updateBC();
 
             }
 
@@ -192,12 +193,13 @@ namespace ipc::rigid {
                                                       (float) i_NBC.force.z()};
 
                     ImGui::InputFloat3(("Neumann最小值 " + std::to_string(i + 1)).c_str(), v_min_point.data());
-                    ImGui::InputFloat3(("Neumann最大值 " + std::to_string(i + 1)).c_str(), v_min_point.data());
+                    ImGui::InputFloat3(("Neumann最大值 " + std::to_string(i + 1)).c_str(), v_max_point.data());
                     ImGui::InputFloat3(("Neumann力 " + std::to_string(i + 1)).c_str(), v_force.data());
                     i_NBC.relMinBBox = {v_min_point[0], v_min_point[1], v_min_point[2]};
                     i_NBC.relMaxBBox = {v_max_point[0], v_max_point[1], v_max_point[2]};
                     i_NBC.force={v_force[0],v_force[1],v_force[2]};
                 }
+                sp_StaticSim_->updateBC();
 
             }
 

src/viewer/UIStaticSimState.h

@@ -218,18 +218,19 @@ namespace ipc {
 //                Eigen::MatrixXd ends = starts.array() + 0.1 * longest_size * N.array();
 //                viewer->data().add_edges(starts, ends, Eigen::RowVector3d(0, 0, 1));
                 for (int i = 0; i < sp_StaticSim_->DirichletBCs.size(); ++i) {
-                    auto [V, F] = get_V_F_from_bd_box(sp_StaticSim_->DirichletBCs[i].relMinBBox,
+                    auto [V, F] = get_V_F_from_bd_box(sp_StaticSim_->DirichletBCs[i].absMinBBox,
-                                                      sp_StaticSim_->DirichletBCs[i].relMaxBBox);
+                                                      sp_StaticSim_->DirichletBCs[i].absMaxBBox);
                     viewer->data(i + 1).set_mesh(V, F);
-                    viewer->data(i + 1).set_colors(Eigen::RowVector3d(1, 0, 0));
+                    viewer->data(i + 1).set_colors(Eigen::RowVector4d(1, 0, 0, 0.5));
                     viewer->data(i + 1).is_visible = gui_ctrl_.is_visible_BC;
 
                 }
                 for (int i = 0; i < sp_StaticSim_->NeumannBCs.size(); ++i) {
-                    auto [V, F] = get_V_F_from_bd_box(sp_StaticSim_->NeumannBCs[i].relMinBBox,
+                    auto [V, F] = get_V_F_from_bd_box(sp_StaticSim_->NeumannBCs[i].absMinBBox,
-                                                      sp_StaticSim_->NeumannBCs[i].relMaxBBox);
+                                                      sp_StaticSim_->NeumannBCs[i].absMaxBBox);
                     viewer->data(i + 1 + sp_StaticSim_->DirichletBCs.size()).set_mesh(V, F);
-                    viewer->data(i + 1 + sp_StaticSim_->DirichletBCs.size()).set_colors(Eigen::RowVector3d(0, 0, 1));
+                    viewer->data(i + 1 + sp_StaticSim_->DirichletBCs.size()).set_colors(
+                            Eigen::RowVector4d(0, 0, 1, 0.5));
                     viewer->data(i + 1 + sp_StaticSim_->DirichletBCs.size()).is_visible = gui_ctrl_.is_visible_BC;
 
                 }

static_sim/StaticSim.cpp

@@ -65,6 +65,22 @@ namespace ssim {
 
 
     void StaticSim::simulation() {
+        { // update BC
+            Eigen::Vector3d modelMinBBox = TV.colwise().minCoeff();
+            Eigen::Vector3d modelMaxBBox = TV.colwise().maxCoeff();
+            for (auto &DBC: DirichletBCs) {
+                DBC.calcAbsBBox(modelMinBBox, modelMaxBBox);
+            }
+            for (auto &NBC: NeumannBCs) {
+                NBC.calcAbsBBox(modelMinBBox, modelMaxBBox);
+            }
+            setBC();
+        }
+
+        { // update material
+            Utils::elasticMatrix(material_property_.Youngs_Modulus, material_property_.Poisson_ratio, D);
+        }
+
         int ENUM_SIZE = SimTargetOption::Target::ENUM_SIZE;
         map_target_to_evaluated_.clear();
         map_target_to_evaluated_.resize(ENUM_SIZE);
@@ -81,6 +97,17 @@ namespace ssim {
         }
     }
 
+    void StaticSim::updateBC() {
+        Eigen::Vector3d modelMinBBox = TV.colwise().minCoeff();
+        Eigen::Vector3d modelMaxBBox = TV.colwise().maxCoeff();
+        for (auto &DBC: DirichletBCs) {
+            DBC.calcAbsBBox(modelMinBBox, modelMaxBBox);
+        }
+        for (auto &NBC: NeumannBCs) {
+            NBC.calcAbsBBox(modelMinBBox, modelMaxBBox);
+        }
+    }
+
     void StaticSim::prepare_surf_result() {
         surf_U_.resize(SVI.size(), 3);
         surf_stress_.resize(SVI.size(), 6);

static_sim/StaticSim.h

@@ -62,6 +62,11 @@ namespace ssim {
 
     void simulation();
 
+    /**
+     * update BC's absBBox
+     */
+    void updateBC();
+
 
     /**
      * Given query points Q, compute their displacements and stress