 |
Point
The point object is a structure used to represent a two-dimensional coordinate or vector.
Points can be transformed, scaled or rotated around their origin (0, 0)
Properties
- number x
Horizontal coordinate of the point in pixels. Default value is 0
- number y
Vertical coordinate of the point in pixels. Default value is 0
Constructors
- Point ( )
Creates a new point with default x and y coordinates
- Point ( Point pt )
Point ( number x, number y )
Creates a new point from given x and y coordinates
Constant Methods
- boolean is_zero ( )
Returns true if the size is zero
- boolean is_nonzero ( )
Returns true if the size is non-zero
- number size ( )
Returns the Euclidean distance from the origin, in pixels
- number size_squared ( )
Returns the squared Euclidean distance from the origin, in pixels
- number rotation ( )
Returns the angle of rotation from the origin, in degrees
- number rotation_r ( )
Returns the angle of rotation from the origin, in radians
Non-Constant Methods
- add ( Point pt )
Translates the point by adding it to another
- assign ( Point pt )
Assigns new coordinates from another point
- number direction ( Point pt )
Returns the direction from one point to another in degrees
- number direction_r ( Point pt )
Returns the direction from one point to another in radians
- number distance ( Point pt )
Returns the Euclidean distance between two points
- number distance_squared ( Point pt )
Returns the squared Euclidean distance between two points
- divide ( number n )
Scales the point by dividing its coordinates by a number
- number dot ( Point pt )
Returns the dot product of two points
- multiply ( number n )
Scales the point by multiplying its coordinates by a number
- normalize ( )
Translates the point by setting its size to 1
- number per ( Point pt )
Returns the per product of the two points
- rotate_by ( number degrees_delta )
Rotates the point by adding delta degrees to the current angle of rotation
- rotate_by_r ( number radians_delta )
Rotates the point by adding delta radians to the current angle of rotation
- rotate_by_180 ( )
Rotates the point by 180 degrees by negating its x and y coordinates
- rotate_by_90ccw ( )
Rotates the point by 90 degrees in counterclockwise direction
- rotate_by_90cw ( )
Rotates the point by 90 degrees in clockwise direction
- set_rotation ( number degrees )
Rotates the point by setting its rotation to a given angle, in degrees
- set_rotation_r ( number radians )
Rotates the point by setting its rotation to a given angle, in radians
- set_rs ( number rotation, number size )
Assigns new coordinates from a given rotation and size
- set_xy ( number x, number y )
Assigns new coordinates
- set_size ( number size )
Translates the point by setting its size to a given distance
- size_by ( number size_delta )
Translates the point by adding delta distance to its current size from the origin
- subtract ( Point pt )
Translates the point by subtracting another from it
- truncate ( number size )
Translates the point by limiting its size to a given number
- zero ( )
Sets both of the point's coordinates to 0
|
