Add ticks to linked vectors

scwx-qt/source/scwx/qt/util/geographic_lib.cpp

@@ -92,6 +92,23 @@ GetAngle(double lat1, double lon1, double lat2, double lon2)
    return units::angle::degrees<double> {azi1};
 }
 
+common::Coordinate GetCoordinate(const common::Coordinate&     center,
+                                 units::angle::degrees<double> angle,
+                                 units::length::meters<double> distance)
+{
+   double latitude;
+   double longitude;
+
+   DefaultGeodesic().Direct(center.latitude_,
+                            center.longitude_,
+                            angle.value(),
+                            distance.value(),
+                            latitude,
+                            longitude);
+
+   return {latitude, longitude};
+}
+
 common::Coordinate GetCoordinate(const common::Coordinate& center,
                                  units::meters<double>     i,
                                  units::meters<double>     j)

scwx-qt/source/scwx/qt/util/geographic_lib.hpp

@@ -49,13 +49,28 @@ bool AreaContainsPoint(const std::vector<common::Coordinate>& area,
 units::angle::degrees<double>
 GetAngle(double lat1, double lon1, double lat2, double lon2);
 
+/**
+ * Get a coordinate from a polar coordinate offset.
+ *
+ * @param [in] center The center coordinate from which the angle and distance
+ * are given
+ * @param [in] angle The angle at which the destination coordinate lies
+ * @param [in] distance The distance from the center coordinate to the
+ * destination coordinate
+ *
+ * @return offset coordinate
+ */
+common::Coordinate GetCoordinate(const common::Coordinate&     center,
+                                 units::angle::degrees<double> angle,
+                                 units::length::meters<double> distance);
+
 /**
  * Get a coordinate from an (i, j) offset.
  *
  * @param [in] center The center coordinate from which i and j are offset
  * @param [in] i The easting offset in meters
  * @param [in] j The northing offset in meters
- * 
+ *
  * @return offset coordinate
  */
 common::Coordinate GetCoordinate(const common::Coordinate& center,