line(x1, y1, x2, y2)
Draws a line (a direct path between two points) to the page.
Type: function
Parameter(s):
- x1 {Number}:
X-coordinate of Point 1.
 - y1 {Number}:
Y-coordinate of Point 1.
 - x2 {Number}:
X-coordinate of Point 2.
 - y2 {Number}:
Y-coordinate of Point 2.
 
Returns:
- 
    {GraphicLine}:
New GraphicLine.
 
Example(s):
var vec1 = new Vector(x1, y1);
var vec2 = new Vector(x2, y2);
line( vec1, vec2 );