2.5 KiB
Angle
Arduino library for basic math for Angles in degrees, minute, seconds and ten-thousands.
Description
Angle is an Arduino class to print, compare and do basic maths with angles in degrees, minutes seconds and ten-thousands. The class was created to be able to print an angle with minutes and seconds instead of as a floating point or radians.
To make the library more useful basic maths ( + - * / ) and comparisons ( == != < <= > >= ) are added to the class.
The library implements the Printable interface, allowing one to call
Serial.println(angle) or SD.print(angle)
Interface
Constructors
- Angle(int dd=0, int mm=0, int ss=0, int tt=0) create an Angle, default is zero.
- Angle(double alpha) create an Angle from a double.
- Angle(char * str) create an Angle from a string e.g. "45.31234".
base
- int sign() returns -1 or 1
- int degree() returns # degrees
- int minute() returns # minutes
- int second() returns # seconds
- int tenthousand() returns # ten-thousands of a second
Conversions
- double toDouble() returns the angle as a double (0..360.0, float on UNO)
- double toRadians() returns the angle in radians (0..TWO_PI)
- void fromRadian(double rad) create an angle from radians.
Equality operators
The library supports equality operator "==", "!=", "<" "<=" ">" and ">="
Math operators
- negate -angle
- addition and subtract add angles to angles
- multiplication and division multiply an angle with a double
- ratio ratio = Angle/Angle;
Operation
See examples
Note
The library has not been tested extensively and it could still contain bugs. Especially the constructor does not check input so use it carefully.