DegOperations.js

Functions

rad(d) ⇒ number

converts radians to degrees

deg(r) ⇒ number

converts degrees to radians

sinDeg(a) ⇒ number

calculates sines with value in degrees

cosDeg(a) ⇒ number

calculates cosines with value in degrees

tanDeg(a) ⇒ number

calculates tangent with value in degrees

atanDeg(x) ⇒ number

calculates arctangent in degrees

ascent(p0, p1) ⇒ number

calculates ascent of two two-dimentsional points in radians

ascentDeg(p0, p1) ⇒ number

calculates ascent of two two-dimentsional points in degrees

simplifyRotation(val) ⇒ number

Sometimes, it's inpractical when the angles are bigger than a half turn or smaller than -a half turn. This function aims to avoid this problem by 'normalizing' the value

rad(d) ⇒ number

converts radians to degrees

Kind: global function
Returns: number - number in radians

Param	Type	Description
d	number	number in degree

Example

DegOperations.rad(0) //is 0
  DegOperations.rad(90) === Math.PI/2 //is true
  DegOperations.rad(180) === Math.PI //is true

deg(r) ⇒ number

converts degrees to radians

Kind: global function
Returns: number - number in degree

Param	Type	Description
r	number	number in radians

Example

DegOperations.deg(0) //is 0
  DegOperations.deg(Math.PI) //is 180

sinDeg(a) ⇒ number

calculates sines with value in degrees

Kind: global function
Returns: number - sines value

Param	Type	Description
a	number	abscissa for the sines function in degrees

Example

DegOperations.sinDeg(0)  //is 0
  DegOperations.sinDeg(90) //is 1

cosDeg(a) ⇒ number

calculates cosines with value in degrees

Kind: global function
Returns: number - cosines value

Param	Type	Description
a	number	abscissa for the cosines function in degrees

Example

DegOperations.cosDeg(0)   //is 1
  DegOperations.cosDeg(90)  //is 0
  DegOperations.cosDeg(180) //is -1
  DegOperations.cosDeg(270) //is 0

tanDeg(a) ⇒ number

calculates tangent with value in degrees

Kind: global function
Returns: number - tangent value

Param	Type	Description
a	number	abscissa for the tangent function in degrees

Example

DegOperations.tanDeg(0)  //is 0
  DegOperations.tanDeg(90) //is 16331239353195370

atanDeg(x) ⇒ number

calculates arctangent in degrees

Kind: global function
Returns: number - arctangent value in degrees

Param	Type	Description
x	number	abscissa for the arctangent function

Example

DegOperations.atanDeg(0) //is 0
  DegOperations.atanDeg(16331239353195370) //is 90

ascent(p0, p1) ⇒ number

calculates ascent of two two-dimentsional points in radians

Kind: global function
Returns: number - ascent in rad

Param	Type	Description
p0	Array.<number>	first of two two-dimensional points
p1	Array.<number>	second of two two-dimensional points

Example

const p0 = [0, 0],
      p1 = [1, 1];
  DegOperations.ascent(p0, p1) === Math.PI/4 //is true

Example

const p0 = [0, 0],
      p1 = [1, 0];
  DegOperations.ascent(p0, p1) //is 0

ascentDeg(p0, p1) ⇒ number

calculates ascent of two two-dimentsional points in degrees

Kind: global function
Returns: number - ascent in deg

Param	Type	Description
p0	Array.<number>	first of two two-dimensional points
p1	Array.<number>	second of two two-dimensional points

Example

const p0 = [0, 0],
      p1 = [1, 1];
  DegOperations.ascentDeg(p0, p1) //is 45

Example

const p0 = [0, 0],
      p1 = [1, 0];
  DegOperations.ascentDeg(p0, p1) //is 0

simplifyRotation(val) ⇒ number

Sometimes, it's inpractical when the angles are bigger than a half turn or smaller than -a half turn. This function aims to avoid this problem by 'normalizing' the value

Kind: global function
Returns: number - angle between -πrad and πrad

Param	Type	Description
val	number	initial angle in rad that might be too big or small

Example

DegOperations.simplifyRotation(0) //is 0
  DegOperations.simplifyRotation(2 * Math.PI) //is 0
  DegOperations.simplifyRotation(10 * Math.PI + 1) //is 1