renamed and stuff

particle-track-and-trace/src/layers/Layer.cpp

@@ -0,0 +1,17 @@
+#include "Layer.h"
+#include <vtkRenderWindow.h>
+#include <vtkRenderWindowInteractor.h>
+
+using std::string;
+
+vtkSmartPointer<vtkRenderer> Layer::getLayer() {
+  return this->ren;
+}
+
+void Layer::updateData(int t) {
+  // By default, do nothing
+}
+
+void Layer::addObservers(vtkSmartPointer<vtkRenderWindowInteractor> interactor) {
+    // By default, do nothing
+}