Function Context.arcNegative
Adds a circular arc of the given radius to the current path.
The arc is centered at center, begins at angle1 and proceeds
in the direction of decreasing angles to end at angle2.
If angle2 is greater than angle1 it will be progressively
decreased by 2*PI until it is less than angle1.
See arc() for more details. This function differs only
in the direction of the arc between the two angles.
Prototypes
void arcNegative(
Point!(double) center,
double radius,
double angle1,
double angle2
);
void arcNegative(
double centerX,
double centerY,
double radius,
double angle1,
double angle2
);
Parameters
| Name | Description |
|---|
| radius | the radius of the arc |
| angle1 | the start angle, in radians |
| angle2 | the end angle, in radians |
Authors
| Johannes Pfau | cairoD |
| Andrej Mitrovic | cairoD |
| cairo team | cairo |