PLOT AREA: x1, ,y1 ; x2 ,y2 ; ……; xn ,yn
draws a filled polygon of which vertices are (x1 ,y1),(x2 ,y2),……,(xn ,yn)
and (x1 , y1).
SET AREA COLOR numeric_expression
specifies the filling color
The defalut area color is 1.
ASK AREA COLOR Numeric_Variable
assigns the current area color.
[Note]
A point is defined to be internal if any ray beginning that point crosses the boundary an odd number of times.
Enhancements to the Standard
SET AREA STYLE string_expression
The value of the string_expression must be one of followngs.
"HOLLOW", "SOLID", "HATCH"
SET AREA STYLE INDEX numeric_expression
assigns the hatch pattern when area style "HATCH" specifed.
Area styles are
1: Horizontal 2:Vertical 3:Slanted(135°) 4:slanted(45°) 5:cross 6:slanted cross
[Note]
Hatch patterns are defined on the physical coordinates.
On this version, if a transformation such as the polygon crosses a line at infinity is assigned, the area style shall be ignored.
ASK AREA STYLE String_variable
assigns the current area style.
ASK AREA STYLE INDEX Numeric_expression
assigns the current area style index.