Mariner GPS Tools

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com.watchandnavy/mariner-gps-toolsv1.0.1 Domain verified

Marine navigation calculators for GPS distance, bearing, cross track error, coordinates and speed.

Maps & Travel

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calculate_bearing

Calculate the initial true bearing between two GPS coordinates.

toobject, required

fromobject, required

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Tools (6)

calculate_bearing

Calculate the initial true bearing between two GPS coordinates.

Argument	Type	Description
to*	object
from*	object

Input schema (JSON)

{
  "type": "object",
  "required": [
    "from",
    "to"
  ],
  "properties": {
    "to": {
      "type": "object",
      "required": [
        "lat",
        "lng"
      ],
      "properties": {
        "lat": {
          "type": "string",
          "description": "Latitude as signed decimal degrees (-33.8688), decimal degrees with a hemisphere letter (33.8688° S), degrees and decimal minutes (33° 52.13′ S) or DMS (51° 30′ 26.4″ N). S is negative. Do not combine a sign with a hemisphere letter."
        },
        "lng": {
          "type": "string",
          "description": "Longitude as signed decimal degrees (-4.15), decimal degrees with a hemisphere letter (4.15° W), degrees and decimal minutes (4° 09.0′ W) or DMS (0° 07′ 39″ W). W is negative. Do not combine a sign with a hemisphere letter."
        }
      },
      "additionalProperties": false
    },
    "from": {
      "type": "object",
      "required": [
        "lat",
        "lng"
      ],
      "properties": {
        "lat": {
          "type": "string",
          "description": "Latitude as signed decimal degrees (-33.8688), decimal degrees with a hemisphere letter (33.8688° S), degrees and decimal minutes (33° 52.13′ S) or DMS (51° 30′ 26.4″ N). S is negative. Do not combine a sign with a hemisphere letter."
        },
        "lng": {
          "type": "string",
          "description": "Longitude as signed decimal degrees (-4.15), decimal degrees with a hemisphere letter (4.15° W), degrees and decimal minutes (4° 09.0′ W) or DMS (0° 07′ 39″ W). W is negative. Do not combine a sign with a hemisphere letter."
        }
      },
      "additionalProperties": false
    }
  },
  "additionalProperties": false
}

calculate_cross_track_error

Calculate cross track error (XTE) — the perpendicular distance from a vessel position to the great-circle track between two waypoints — plus side of track (port/starboard) and along-track distances.

Argument	Type	Description
end*	object	Track end waypoint (B).
start*	object	Track start waypoint (A).
position*	object	Vessel position (P).

Input schema (JSON)

{
  "type": "object",
  "required": [
    "start",
    "end",
    "position"
  ],
  "properties": {
    "end": {
      "type": "object",
      "required": [
        "lat",
        "lng"
      ],
      "properties": {
        "lat": {
          "type": "string",
          "description": "Latitude as signed decimal degrees (-33.8688), decimal degrees with a hemisphere letter (33.8688° S), degrees and decimal minutes (33° 52.13′ S) or DMS (51° 30′ 26.4″ N). S is negative. Do not combine a sign with a hemisphere letter."
        },
        "lng": {
          "type": "string",
          "description": "Longitude as signed decimal degrees (-4.15), decimal degrees with a hemisphere letter (4.15° W), degrees and decimal minutes (4° 09.0′ W) or DMS (0° 07′ 39″ W). W is negative. Do not combine a sign with a hemisphere letter."
        }
      },
      "description": "Track end waypoint (B).",
      "additionalProperties": false
    },
    "start": {
      "type": "object",
      "required": [
        "lat",
        "lng"
      ],
      "properties": {
        "lat": {
          "type": "string",
          "description": "Latitude as signed decimal degrees (-33.8688), decimal degrees with a hemisphere letter (33.8688° S), degrees and decimal minutes (33° 52.13′ S) or DMS (51° 30′ 26.4″ N). S is negative. Do not combine a sign with a hemisphere letter."
        },
        "lng": {
          "type": "string",
          "description": "Longitude as signed decimal degrees (-4.15), decimal degrees with a hemisphere letter (4.15° W), degrees and decimal minutes (4° 09.0′ W) or DMS (0° 07′ 39″ W). W is negative. Do not combine a sign with a hemisphere letter."
        }
      },
      "description": "Track start waypoint (A).",
      "additionalProperties": false
    },
    "position": {
      "type": "object",
      "required": [
        "lat",
        "lng"
      ],
      "properties": {
        "lat": {
          "type": "string",
          "description": "Latitude as signed decimal degrees (-33.8688), decimal degrees with a hemisphere letter (33.8688° S), degrees and decimal minutes (33° 52.13′ S) or DMS (51° 30′ 26.4″ N). S is negative. Do not combine a sign with a hemisphere letter."
        },
        "lng": {
          "type": "string",
          "description": "Longitude as signed decimal degrees (-4.15), decimal degrees with a hemisphere letter (4.15° W), degrees and decimal minutes (4° 09.0′ W) or DMS (0° 07′ 39″ W). W is negative. Do not combine a sign with a hemisphere letter."
        }
      },
      "description": "Vessel position (P).",
      "additionalProperties": false
    }
  },
  "additionalProperties": false
}

calculate_distance

Calculate great-circle and rhumb-line routes between two GPS coordinates.

Argument	Type	Description
to*	object
from*	object

Input schema (JSON)

{
  "type": "object",
  "required": [
    "from",
    "to"
  ],
  "properties": {
    "to": {
      "type": "object",
      "required": [
        "lat",
        "lng"
      ],
      "properties": {
        "lat": {
          "type": "string",
          "description": "Latitude as signed decimal degrees (-33.8688), decimal degrees with a hemisphere letter (33.8688° S), degrees and decimal minutes (33° 52.13′ S) or DMS (51° 30′ 26.4″ N). S is negative. Do not combine a sign with a hemisphere letter."
        },
        "lng": {
          "type": "string",
          "description": "Longitude as signed decimal degrees (-4.15), decimal degrees with a hemisphere letter (4.15° W), degrees and decimal minutes (4° 09.0′ W) or DMS (0° 07′ 39″ W). W is negative. Do not combine a sign with a hemisphere letter."
        }
      },
      "additionalProperties": false
    },
    "from": {
      "type": "object",
      "required": [
        "lat",
        "lng"
      ],
      "properties": {
        "lat": {
          "type": "string",
          "description": "Latitude as signed decimal degrees (-33.8688), decimal degrees with a hemisphere letter (33.8688° S), degrees and decimal minutes (33° 52.13′ S) or DMS (51° 30′ 26.4″ N). S is negative. Do not combine a sign with a hemisphere letter."
        },
        "lng": {
          "type": "string",
          "description": "Longitude as signed decimal degrees (-4.15), decimal degrees with a hemisphere letter (4.15° W), degrees and decimal minutes (4° 09.0′ W) or DMS (0° 07′ 39″ W). W is negative. Do not combine a sign with a hemisphere letter."
        }
      },
      "additionalProperties": false
    }
  },
  "additionalProperties": false
}

convert_coordinates

Parse latitude and longitude and format them as decimal degrees or DMS.

Argument	Type	Description
format*	string	Output coordinate format.
latitude*	string	Latitude as signed decimal degrees, decimal degrees with N/S (33.8688° S), degrees and decimal minutes, or DMS. Do not combine a sign with a hemisphere letter.
longitude*	string	Longitude as signed decimal degrees, decimal degrees with E/W (4.15° W), degrees and decimal minutes, or DMS. Do not combine a sign with a hemisphere letter.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "latitude",
    "longitude",
    "format"
  ],
  "properties": {
    "format": {
      "enum": [
        "decimal",
        "dms"
      ],
      "type": "string",
      "description": "Output coordinate format."
    },
    "latitude": {
      "type": "string",
      "description": "Latitude as signed decimal degrees, decimal degrees with N/S (33.8688° S), degrees and decimal minutes, or DMS. Do not combine a sign with a hemisphere letter."
    },
    "longitude": {
      "type": "string",
      "description": "Longitude as signed decimal degrees, decimal degrees with E/W (4.15° W), degrees and decimal minutes, or DMS. Do not combine a sign with a hemisphere letter."
    }
  },
  "additionalProperties": false
}

convert_speed

Convert a speed value between knots, mph, km/h, m/s, and ft/s.

Argument	Type	Description
to	string	Optional target unit. When omitted, all units are returned.
from*	string	Input speed unit.
value*	number	Speed value to convert.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "value",
    "from"
  ],
  "properties": {
    "to": {
      "enum": [
        "kn",
        "mph",
        "kmh",
        "ms",
        "fts"
      ],
      "type": "string",
      "description": "Optional target unit. When omitted, all units are returned."
    },
    "from": {
      "enum": [
        "kn",
        "mph",
        "kmh",
        "ms",
        "fts"
      ],
      "type": "string",
      "description": "Input speed unit."
    },
    "value": {
      "type": "number",
      "description": "Speed value to convert."
    }
  },
  "additionalProperties": false
}

list_tools

List the public Mariner GPS Tools calculators currently available.

No arguments.

Input schema (JSON)

{
  "type": "object",
  "additionalProperties": false
}