This is a very simple use of the $set
operator. So essentially the update form is:
db.objects.update(
{ "_id": 1 },
{
"$set": {
"area": { /* all of your object properties */ },
"dimension": { /* all of your object properties */ }
}
}
)
Alternately you do them separately:
db.objects.update(
{ "_id": 1 },
{
"$set": {
"area.position_x1": 1,
"area.position_y1": 1,
"dimension.width": 1
}
}
)
According to you actual needs.
Or as C# type code with a Builder:
var query = Query.EQ("_id",1);
var update = Update.Set("area.position_x1", 1)
.Set("area.position_y1", 1)
.Set("dimension.width", 1);
MongoCollection<Class>.update(query, update);