add vtk solids

src/Vtk/HEP/Geant/vtkBoxSolid.cpp

@@ -0,0 +1,57 @@
+/*//////////////////////////////////////////////////////////////////////////////
+// CMT Cosmic Muon Tomography project //////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+
+  Copyright (c) 2014, Universita' degli Studi Padova, INFN sez. di Padova
+  All rights reserved
+
+  Authors: Andrea Rigoni Garola < andrea.rigoni@pd.infn.it >
+
+//////////////////////////////////////////////////////////////////////////////*/
+
+#include "vtkBoxSolid.h"
+#include <vtkCubeSource.h>
+#include <vtkPolyDataMapper.h>
+#include <vtkActor.h>
+
+namespace uLib {
+namespace Vtk {
+
+vtkBoxSolid::vtkBoxSolid(Geant::BoxSolid *content)
+    : vtkGeantSolid(content), m_BoxContent(content) {
+  // Re-run Update for box-specific pipe
+  this->Update();
+}
+
+vtkBoxSolid::~vtkBoxSolid() {}
+
+void vtkBoxSolid::Update() {
+  this->UpdateGeometry();
+  this->UpdateTransform();
+}
+
+void vtkBoxSolid::UpdateGeometry() {
+  if (!m_BoxContent || !m_BoxContent->GetObject()) {
+    // Fallback to base tessellation if no model object
+    vtkGeantSolid::UpdateGeometry();
+    return;
+  }
+
+  // Use the underlying ContainerBox for precise geometry
+  Vector3f size = m_BoxContent->GetObject()->GetSize();
+  
+  vtkNew<vtkCubeSource> cube;
+  cube->SetXLength(size(0));
+  cube->SetYLength(size(1));
+  cube->SetZLength(size(2));
+  cube->Update();
+
+  vtkPolyData *poly = GetPolyData();
+  if (poly) {
+      poly->ShallowCopy(cube->GetOutput());
+      poly->Modified();
+  }
+}
+
+} // namespace Vtk
+} // namespace uLib