Name 
quad() 
Examples 
quad(38, 31, 86, 20, 69, 63, 30, 76); 
Description 
A quad is a quadrilateral, a four sided polygon. It is similar to a rectangle, but the angles between its edges are not constrained to ninety degrees. The first pair of parameters (x1,y1) sets the first vertex and the subsequent pairs should proceed clockwise or counterclockwise around the defined shape. 
Syntax 
quad(x1, y1, x2, y2, x3, y3, x4, y4) 
Parameters 
x1 
int or float: xcoordinate of the first corner 
y1 
int or float: ycoordinate of the first corner 
x2 
int or float: xcoordinate of the second corner 
y2 
int or float: ycoordinate of the second corner 
x3 
int or float: xcoordinate of the third corner 
y3 
int or float: ycoordinate of the third corner 
x4 
int or float: xcoordinate of the fourth corner 
y4 
int or float: ycoordinate of the fourth corner 

Returns 
None 
Usage 
Web & Application 