feat: generate four points and planning config input string

README.md

 # generate rectangle coordinates
 
+Generate four coodinates from a starting waypoint of the left corner of the rectangle (or square), following ecoSUB GUI concepts.
+
+```
+usage: generate_rect_coords.py [-h] [-l LENGTH] [-w WIDTH] [-r ROTATION] lat long
+
+positional arguments:
+  lat                   Starting WP (bottom left) latitude (decimal degrees)
+  long                  Starting WP (bottom left) longitude (decimal degrees)
+
+optional arguments:
+  -h, --help            show this help message and exit
+  -l LENGTH, --length LENGTH
+                        vertical length (m)
+  -w WIDTH, --width WIDTH
+                        horizontal length (m)
+  -r ROTATION, --rotation ROTATION
+                        The bearing or rotation of the rectangle about the starting WP/origin. Defaulted to 0 degrees. (+ clockwise, - anti-clockwise)
+```
+
+Example usage:
+1. 1000x1000m SOTWB area
+`python generate_rect_coords.py 50.322231 -4.158497 -l 1000 -w 1000`
+
+![1000x1000m SOTWB area](image.png)
+
+2. 1000x500m Cawsand Bay area
+`python generate_rect_coords.py 50.330505 -4.191456 -l 1000 -w 500 -r 41.81`
+
+![1000x500m Cawsand Bay area](image-1.png)
+
+Verify result with Google Earth:
+![Google Earth](image-2.png)

generate_rect_coords.py

+import json
+import argparse
+from turfpy.measurement import destination
+from geojson import Point, Feature
+
+parser = argparse.ArgumentParser()
+parser.add_argument("lat",
+                    type=float,
+                    help="Starting WP (bottom left) latitude (decimal degrees)")
+parser.add_argument("long",
+                    type=float,
+                    help="Starting WP (bottom left) longitude (decimal degrees)")
+parser.add_argument("-l", "--length",
+                    type=int,
+                    help="vertical length (m)")
+parser.add_argument("-w", "--width",
+                    type=int,
+                    help="horizontal length (m)")
+parser.add_argument("-r", "--rotation",
+                    type=float,
+                    default=0,
+                    help="The bearing or rotation of the rectangle about the starting WP/origin." +
+                            " Defaulted to 0 degrees. (+ clockwise, - anti-clockwise)")
+
+args = parser.parse_args()
+
+origin = Feature(geometry=Point([args.long, args.lat]))
+# origin = Feature(geometry=Point([-4.158497, 50.322231]))
+
+distance_horizontal = args.width
+distance_vertical = args.length
+rotation = args.rotation
+options = {'units': 'm'}
+
+dest_bottom_right = destination(origin, distance_horizontal, 90+rotation, options)
+dest_top_left = destination(origin, distance_vertical, rotation, options)
+dest_top_right = destination(dest_top_left, distance_horizontal, 90+rotation, options)
+
+print("Bottom Left: ", origin.geometry.coordinates[::-1])
+print("Bottom Right: ", dest_bottom_right.geometry.coordinates[::-1])
+print("Top Left: ", dest_top_left.geometry.coordinates[::-1])
+print("Top Right: ", dest_top_right.geometry.coordinates[::-1])
+
+destination_result = [dest_top_left.geometry.coordinates,
+                      dest_top_right.geometry.coordinates,
+                      dest_bottom_right.geometry.coordinates,
+                      origin.geometry.coordinates,
+                      dest_top_left.geometry.coordinates]
+
+print("Planner config input from top left and going clockwise\n" +
+      " (to be copied and pasted): \n",
+      json.dumps(destination_result, indent=2))
+
+# print(json.dumps(destination_result, indent=2, sort_keys=True))