qatt Struct Reference

Quaternion Attitude. More...

#include <convertdef.h>

Collaboration diagram for qatt:

Public Member Functions
json11::Json	to_json () const
	Convert class contents to JSON object. More...
void	from_json (const string &js)
	Set class contents from JSON string. More...

Public Attributes
double	utc = 0.
quaternion	s
	0th derivative: Quaternion More...
rvector	v
	1st derivative: Omega - angular velocity More...
rvector	a
	2nd derivative: Alpha - acceleration More...
uint32_t	pass = 0
	pass indicator: allows synchronization with other attitude and position values. More...

Detailed Description

Quaternion Attitude.

Full attitude structure (0th, 1st and 2nd derivative), using a Quaternion to present the 0th derivative.

Member Function Documentation

json11::Json qatt::to_json ( ) const

inline

Convert class contents to JSON object.

Returns a json11 JSON object of the class

Returns

A json11 JSON object containing every member variable within the class

                               {
        return json11::Json::object {
            { "utc" , utc },
            { "s" , s },
            { "v" , v },
            { "a" , a },
            { "pass" , static_cast<int>(pass) }
        };
    }

void qatt::from_json ( const string &  js )

inline

Set class contents from JSON string.

Parses the provided JSON-formatted string and sets the class data. String should be formatted like the string returned from to_json()

Parameters

s	JSON-formatted string to set class contents to

Returns

n/a

                                     {
        string error;
        json11::Json parsed = json11::Json::parse(js,error);
        if(error.empty()) {
            if(!parsed["utc"].is_null())    utc = parsed["utc"].number_value();
            if(!parsed["s"].is_null())    s.from_json(parsed["s"].dump());
            if(!parsed["v"].is_null())    v.from_json(parsed["v"].dump());
            if(!parsed["a"].is_null())    a.from_json(parsed["a"].dump());
            if(!parsed["pass"].is_null())    pass = parsed["pass"].int_value();
        } else {
            cerr<<"ERROR = "<<error<<endl;
        }
        return;
    }

Member Data Documentation

double qatt::utc = 0.

quaternion qatt::s

0th derivative: Quaternion

rvector qatt::v

1st derivative: Omega - angular velocity

rvector qatt::a

2nd derivative: Alpha - acceleration

uint32_t qatt::pass = 0

pass indicator: allows synchronization with other attitude and position values.

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The documentation for this struct was generated from the following file:

• convertdef.h