Services or capabilities described in AWS documentation might vary by Region. To see the differences applicable to the AWS European Sovereign Cloud Region, see the AWS European Sovereign Cloud User Guide.$degreesToRadians
New from version 8.0.1.
The $degreesToRadians operator in Amazon DocumentDB converts a value from degrees to radians.
Parameters
Example (MongoDB Shell)
The following example shows how to use the $degreesToRadians operator to convert degree values to radians.
Create sample documents
db.angles.insertMany([
{ "_id": 1, "degrees": 0 },
{ "_id": 2, "degrees": 90 },
{ "_id": 3, "degrees": 180 },
{ "_id": 4, "degrees": 360 }
]);
Query example
db.angles.aggregate([
{ $project: {
"radians": { $degreesToRadians: "$degrees" }
}}
]);
Output
[
{ "_id": 1, "radians": 0 },
{ "_id": 2, "radians": 1.5707963267948966 },
{ "_id": 3, "radians": 3.141592653589793 },
{ "_id": 4, "radians": 6.283185307179586 }
]
Code examples
To view a code example for using the $degreesToRadians operator, choose the tab for the language that you want to use:
- Node.js
-
const { MongoClient } = require('mongodb');
async function main() {
const client = await MongoClient.connect('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false');
const db = client.db('test');
const collection = db.collection('angles');
const result = await collection.aggregate([
{ $project: {
"radians": { $degreesToRadians: "$degrees" }
}}
]).toArray();
console.log(result);
await client.close();
}
main();
- Python
-
from pymongo import MongoClient
def main():
client = MongoClient('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false')
db = client['test']
collection = db['angles']
result = list(collection.aggregate([
{ '$project': {
'radians': { '$degreesToRadians': '$degrees' }
}}
]))
print(result)
client.close()
if __name__ == "__main__":
main()