Star

o1.stars.Star
class Star(val id: Int, val coords: StarCoords, val magnitude: Double, val name: Option[String])

Each Star object represents a star on a star map. It records some basic information (an identifier, a location, and a magnitude); in addition, some but not all stars have been assigned a name. (In reality, many stars have multiple alternative names, but this class does not capture that fact.)

Parameters

coords

the location of the star on a two-dimensional star map

id

a number that uniquely identifies the star from the other visible stars (a so-called Henry Draper number)

magnitude

the apparent magnitude (brightness) of the star: smaller means brighter!

name

the star’s name (wrapped in Some), or None

Attributes

Graph
Supertypes
class Object
trait Matchable
class Any

Members list

Value members

Concrete methods

def posIn(skyPic: Pic): Pos

Determines the location of this star within a given image of a star map. This method effectively converts the coords of this star (a StarCoords) into a Pos within the given image. For instance, if this star has coords of (0,0), and a 400-by-400 pixel image is given, this method returns a Pos of (200,200).

Determines the location of this star within a given image of a star map. This method effectively converts the coords of this star (a StarCoords) into a Pos within the given image. For instance, if this star has coords of (0,0), and a 400-by-400 pixel image is given, this method returns a Pos of (200,200).

Attributes

See also
override def toString: String

Returns a string description of the star. The format of the string varies slightly depending on whether the star has a name or not. For a named star, the description has the form "#ID NAME (COORDS)"; e.g., "#39801 Betelgeuse (x=0.02, y=0.99)". In case of an unnamed star, the name and one of the spaces are omitted; e.g.,"#39810 (x=0.016, y=0.30)".

Returns a string description of the star. The format of the string varies slightly depending on whether the star has a name or not. For a named star, the description has the form "#ID NAME (COORDS)"; e.g., "#39801 Betelgeuse (x=0.02, y=0.99)". In case of an unnamed star, the name and one of the spaces are omitted; e.g.,"#39810 (x=0.016, y=0.30)".

Attributes

Definition Classes
Any

Concrete fields

val id: Int