Constructor
new Point(a, b)
Constructs a point of cartesian coordinates (x=a, y=b).
Parameters:
| Name | Type | Description |
|---|---|---|
a |
number | |
b |
number |
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Members
x
Returns the horizontal coordinate of the cartesian coordinates.
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y
Returns the vertical coordinate of the cartesian coordinates.
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Methods
add(other) → {Point}
Returns a new point that is the sum.
Parameters:
| Name | Type | Description |
|---|---|---|
other |
Point |
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Returns:
- Type
- Point
compare(other) → {number}
Compare two points before with x coordinate
and maybe after with y coordinate.
Parameters:
| Name | Type | Description |
|---|---|---|
other |
Point |
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Returns:
-1, 0 or 1
- Type
- number
distance(other) → {number}
Returns the distance between the two points.
Parameters:
| Name | Type | Description |
|---|---|---|
other |
Point |
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Returns:
>= 0
- Type
- number
distanceSqr(other) → {number}
Returns the square of the distance between the two points.
Parameters:
| Name | Type | Description |
|---|---|---|
other |
Point |
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Returns:
>= 0
- Type
- number
distanceTo0() → {number}
Returns the distance to (0, 0).
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Returns:
>= 0
- Type
- number
distanceTo0Sqr() → {number}
Returns the square of the distance to (0, 0).
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Returns:
>= 0
- Type
- number
isEquals(other) → {boolean}
Returns true iff the point is equals to the point other,
namely iff they are same cartesian coordinates.
Parameters:
| Name | Type | Description |
|---|---|---|
other |
Point |
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Returns:
- Type
- boolean
mulScalar() → {Point}
Returns a new point multiply by the scalar n.
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Returns:
- Type
- Point
sub(other) → {Point}
Returns a new point that is the difference.
Parameters:
| Name | Type | Description |
|---|---|---|
other |
Point |
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Returns:
- Type
- Point
toString() → {String}
Returns a string cartesian representation of the point.
Each number is represented with at most precision figures after the decimal point.
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Returns:
- Type
- String