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Point Class Reference

point for 2D coordinate system More...

Inheritance diagram for Point:
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Collaboration diagram for Point:
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Public Member Functions

 Point ()
 create with x = 0, y = 0
 
 Point (number x, number y)
 create and set x & y values
 
 Point (number[] xy)
 create and set x & y values
 
 Point (object xy)
 create and set x & y values
 
number distance (Point point)
 get distance from another point
 
Point projection (Point point)
 do a projection of a second point onto this point
 
- Public Member Functions inherited from Offset
 Offset ()
 
 Offset (number x, number y)
 
 Offset (number[] xy)
 
 Offset (object xy)
 
Offset add (Offset offset)
 
Offset assign (Offset offset)
 
Offset div (Offset offset)
 
Offset dividedby (Offset offset)
 
boolean equals (Offset offset)
 
Offset minus (Offset offset)
 
Offset mul (Offset offset)
 
boolean notEquals (Offset offset)
 
Offset plus (Offset offset)
 
Offset sub (Offset offset)
 
Offset times (Offset offset)
 

Public Attributes

number x
 
number y
 
- Public Attributes inherited from Offset
number x
 
number y
 

Detailed Description

point for 2D coordinate system

Point provides support for dealing with points as x, y floating point values in 2 dimensional space. The PDG coordinate space starts with the top left corner of the drawing port at Point(0,0) and the bottom left corner at Point( width, height );

Coordinates Diagram

Constructor & Destructor Documentation

Point ( )

create with x = 0, y = 0

Point ( number  x,
number  y 
)

create and set x & y values

Parameters
xthe horizontal coordinate
ythe vertical coordinate
Point ( number[]  xy)

create and set x & y values

Parameters
xyan array of numbers with x as element 0 and y as element 1
Point ( object  xy)

create and set x & y values

Parameters
xyan object with x and y members, for example: {x: 1, y: 4}

Member Function Documentation

distance ( Point  point)

get distance from another point

Parameters
pointthe other Point
projection ( Point  point)

do a projection of a second point onto this point

Member Data Documentation

number x
number y

User Comments