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See the recommended documentation of this function

# xarc

draw a part of an ellipse

### Syntax

`xarc(x,y,w,h,a1,a2)`

### Arguments

x,y,w,h

four real values defining a rectangle.

a1,a2

real values defining a sector.

### Description

`xarc` draws a part of an ellipse contained in the rectangle `(x,y,w,h)` (upper-left point, width, height), and in the sector defined by the angle `alpha1` and the angle `alpha1+alpha2`. `alpha1` and `alpha2` are given respectively by `a1/64` degrees and `a2/64` degrees. This function uses the current graphics color and user coordinates.

### Examples

```// isoview scaling
plot2d(0,0,-1,"031"," ",[-2,-2,2,2])
xarc(-1,1,2,2,0,90*64)
xarc(-1.5,1.5,3,3,0,360*64)
gca().children(1:2).foreground = color("green");``` ```rect=[-1,-1,1,1]
plot2d(0,0,0,rect=rect,frameflag=3,axesflag=5)
xrpoly([0,0],3,1)
xarc(-1,1,2,2,0,64*360)
xarc(-1,1,2,2,0,64*360)
xstring(1,0.1,'A')//label A
xstring(-0.5,0.9,'B')//label B
xstring(-0.5,-1,'C')//label C``` • xarcs — draw parts of a set of ellipses
• xfarc — Fill a part of an ellipse
• xfarcs — Fill parts of a set of ellipses