A `StarCoords`

object describes the location of a star on a two-dimensional star map.
A location consists of two components, `x`

and `y`

, each of which has a value between
-1.0 and +1.0. The x coordinate ranges from -1.0 at the very left of the map to +1.0 on
the right; the y coordinate similarly ranges from -1.0 at the bottom to +1.0 at the top.
For instance, a star with `StarCoords`

of (0.0,0.0) appears at the exact center of the map.

- Value parameters:
- x
the x coordinate of a location on the star map, between -1.0 and +1.0

- y
the y coordinate of a location on the star map, between -1.0 and +1.0

- Companion:
- object

## Value members

### Concrete methods

Converts this pair of star coords to the position (`Pos`

) of a pixel within a given
image (`Pic`

). For instance, if this `StarCoords`

represents the middle (0,0)
of a star map, and a 400-by-400 pixel image is given, this method returns a `Pos`

of (200,200). Another example: if this `StarCoords`

is (-0.5,0.2) and the given
image is a 1000-by-1000 pixel square, returns a `Pos`

of (250,400).

Converts this pair of star coords to the position (`Pos`

) of a pixel within a given
image (`Pic`

). For instance, if this `StarCoords`

represents the middle (0,0)
of a star map, and a 400-by-400 pixel image is given, this method returns a `Pos`

of (200,200). Another example: if this `StarCoords`

is (-0.5,0.2) and the given
image is a 1000-by-1000 pixel square, returns a `Pos`

of (250,400).

Returns a string description of the star coords; e.g., "x=0.62, y=0.04".

Returns a string description of the star coords; e.g., "x=0.62, y=0.04".

- Definition Classes

Returns a value between 0 and 1 that indicates how many percent from the left this location’s x coordinate is. For example, 0.5 is halfway from the left.

Returns a value between 0 and 1 that indicates how many percent from the left this location’s x coordinate is. For example, 0.5 is halfway from the left.

Returns a value between 0 and 1 that indicates how many percent from the top this location’s y coordinate is. For example, 0.25 is a quarter of the way down from the top.

Returns a value between 0 and 1 that indicates how many percent from the top this location’s y coordinate is. For example, 0.25 is a quarter of the way down from the top.