feat: date legend

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

@@ -0,0 +1,40 @@
+#include "TimeLayer.h"
+#include <vtkTextProperty.h>
+
+using std::string;
+
+TimeLayer::TimeLayer() {
+  this->ren = vtkSmartPointer<vtkRenderer>::New();
+  this->ren->SetLayer(4);
+
+  this->years = 0;
+  this->lastT = 0;
+
+  this->textActor = vtkSmartPointer<vtkTextActor>::New();
+  this->textActor->SetDisplayPosition(10, 10);
+  vtkSmartPointer<vtkTextProperty> textProp = this->textActor->GetTextProperty();
+  textProp->SetFontFamilyToArial();
+  textProp->BoldOn();
+  textProp->SetFontSize(16);
+  textProp->ShadowOff();
+  textProp->SetColor(0,0,0);
+
+  ren->AddActor(this->textActor);
+}
+
+string TimeLayer::secondsToDate(int t) {
+  if (t < lastT) this->years++;
+
+  int hours = t /3600;
+  int days = hours / 24;
+  
+  this->lastT = t;
+  return string("year " + std::to_string(years) + ", day " + std::to_string(days));
+  // return string("seconds  " + std::to_string(t));
+}
+
+
+void TimeLayer::updateData(int t) {
+  this->textActor->SetInput(secondsToDate(t).c_str());
+  this->textActor->Modified();
+}