Initial commit

Lts/Tools/WlsRandomPositions/position_helper.cpp

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+/*
+ * @RDE_HEADER@
+ * Generates a postion for a player
+ * $Id$
+ * $HeadURL$
+ * $Author$
+ * Created by Hanna E. Rathje, SLTE, 2022-03-29
+ */
+
+#include "position_helper.h"
+
+#include <LtsCoordTrans/lts_coord_trans.h>
+#include <NGLLogger/NGLLoggerBootstrap.h>
+#include <QLineF>
+
+static QRectF s_area;
+static double s_heightMin;
+static double s_heightMax;
+
+namespace WlsRandomPositions
+{
+
+PositionHelper::PositionHelper(const QPointF &topLeft, const QPointF &bottomRight, double heightMin, double heightMax)
+  : m_logger(NGL::NGLLoggerBootstrap::getNGLRootLogger().getNGLLogger("PositionHelper"))
+{  
+  s_area = QRectF(topLeft, bottomRight).normalized();
+  s_heightMin = heightMin;
+  s_heightMax = heightMax;
+  INFO_LOG(m_logger) << "Area initialized: " << LtsCoordTrans::UtmCoordinate::fromGeographic(s_area.topLeft()).mgrs() << "//"
+                     << LtsCoordTrans::UtmCoordinate::fromGeographic(s_area.bottomRight()).mgrs();
+}
+
+void PositionHelper::set(const QPointF &topLeft, const QPointF &bottomRight, double heightMin, double heightMax)
+{
+  s_area = QRectF(topLeft, bottomRight).normalized();
+  s_heightMin = heightMin;
+  s_heightMax = heightMax;
+
+  INFO_LOG(m_logger) << "New Area initialized: " << LtsCoordTrans::UtmCoordinate::fromGeographic(s_area.topLeft()).mgrs() << "//"
+                     << LtsCoordTrans::UtmCoordinate::fromGeographic(s_area.bottomRight()).mgrs();
+}
+
+QPair<QPointF,double> PositionHelper::randPos()
+{
+  LtsCoordTrans::UtmCoordinate bl = LtsCoordTrans::UtmCoordinate::fromGeographic(s_area.bottomLeft());
+  LtsCoordTrans::UtmCoordinate tr = LtsCoordTrans::UtmCoordinate::fromGeographic(s_area.topRight());
+
+  QPointF distance = bl.relativeTo(tr);
+
+  // Multiplying with -1 works for all Degree Squares (northern/southern hemisphere, west/east of Greenwich)
+  distance.setX((rand() % 100) / 100.0 * distance.x() * -1.0);
+  distance.setY((rand() % 100) / 100.0 * distance.y() * -1.0);
+  double z = (rand() % 100) / 100.0 * (s_heightMax - s_heightMin) + s_heightMin;
+  return {bl.geographic(distance),z};
+}
+
+QPair<QPointF,double> PositionHelper::randPos(const QPointF &oldPos, double maxDistance)
+{
+  double z = (rand() % 100) / 100.0 * (s_heightMax - s_heightMin) + s_heightMin;
+
+  LtsCoordTrans::UtmCoordinate utm = LtsCoordTrans::UtmCoordinate::fromGeographic(oldPos);
+  QLineF line;
+  line.setP1({0,0});
+  line.setP2({1,0});
+  do
+  {
+    line.setAngle((rand() % 36000) / 100.0);
+    line.setLength(((rand() % 100) / 100.0) * maxDistance);
+  } while (!s_area.contains(utm.geographic(line.p2())));
+
+  return {utm.geographic(line.p2()),z};
+}
+
+} // Namespace WlsRandomPositions