qfirst Struct Reference

Quaternion, scalar first using vector elements. More...

#include <vector.h>

Collaboration diagram for qfirst:

Public Member Functions
	qfirst ()
	qfirst (double tq0, double tq1, double tq2, double tq3)
json11::Json	to_json () const
	Convert class contents to JSON object. More...
void	from_json (const string &s)
	Set class contents from JSON string. More...

Public Attributes
double	q0
double	q1
double	q2
double	q3

Detailed Description

Quaternion, scalar first using vector elements.

Can be thought of as scalar element, q0, followed by vector elements, q1, q2, q3.

Constructor & Destructor Documentation

qfirst::qfirst ( )

inline

{}

qfirst::qfirst ( double  tq0, double  tq1, double  tq2, double  tq3  )

inline

                                                           {
        q0 = tq0;
        q1 = tq1;
        q2 = tq2;
        q3 = tq3;
    }

Member Function Documentation

json11::Json qfirst::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 {
            { "q0" , q0 },
            { "q1" , q1 },
            { "q2" , q2 },
            { "q3" , q3 }
        };
    }

void qfirst::from_json ( const string &  s )

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(s,error);
        if(error.empty()) {
            if(!parsed["q0"].is_null()) q0 = parsed["q0"].number_value();
            if(!parsed["q1"].is_null()) q1 = parsed["q1"].number_value();
            if(!parsed["q2"].is_null()) q2 = parsed["q2"].number_value();
            if(!parsed["q3"].is_null()) q3 = parsed["q3"].number_value();
        } else  {
            cerr<<"ERROR: <"<<error<<">"<<endl;
        }
        return;
    }

Member Data Documentation

double qfirst::q0

double qfirst::q1

double qfirst::q2

double qfirst::q3

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

• vector.h