renamed and stuff

particle-track-and-trace/src/layers/EGlyphLayer.h

@@ -0,0 +1,38 @@
+#ifndef EGLYPHLAYER_H
+#define EGLYPHLAYER_H
+
+#include "Layer.h"
+#include <vtkPolyData.h>
+
+#include "../advection/UVGrid.h"
+
+/** Implements the Layer class for the case of a Eulerian visualization.
+  * Specifically, this class models the eulerian flow-fields of the simulation using the 'glyph' mark and 'direction' and 'form' channels to denote direction and strength of velocities.
+  */
+class EGlyphLayer : public Layer {
+private:
+  vtkSmartPointer<vtkPolyData> data;
+  vtkSmartPointer<vtkDoubleArray> direction;
+  std::shared_ptr<UVGrid> uvGrid;
+  int numLats;
+  int numLons;
+
+  /** This private function sets up the initial coordinates for the glyphs in the dataset.
+    * It also reads some initial data to actually display.
+    */
+  void readCoordinates();
+
+public:
+  /** Constructor.
+    */
+  EGlyphLayer(std::shared_ptr<UVGrid> uvGrid);
+
+  /** updates the glyphs to reflect the given timestamp in the dataset.
+    * @param t : the time at which to fetch the data.
+    */
+  void updateData(int t);
+
+};
+
+
+#endif