Drawable.DrawArc Method
Draws an elliptic arc.
DrawArc(System.Double radiusX, System.Double radiusY, System.Double startAngle, System.Double sweepAngle, Pen pen, Brush brush)
Draws an elliptic arc.Syntax
public void DrawArc (
System.Double radiusX,
System.Double radiusY,
System.Double startAngle,
System.Double sweepAngle,
Pen pen,
Brush brush
)Parameters
The X component of the radius of the arc.
The Y component of the radius of the arc.
The start angle of the arc, in radians.
The sweep angle, in radians. If equal to 2 * pi, a full ellipse will be drawn.
Remarks
The arc is generated with its center in (0.0, 0.0) and the specified radii and angles. The start angle is interpreted counter-clockwise from the positive X axis, and the sweep angle counter-clockwise from the start angle.
The coordinates of the generated arc are then transformed to screen coordinates using the current Transform.
In a custom symbol, this means that the radii should normally be specified in pixels, and the angles counter-clockwise. A custom visualizer on the other hand usually has a transform set up to map from view coordinates to screen coordinates, so the radii are expressed in view coordinates, and the angles are specified clockwise instead.
The pattern property of the brush is currently not supported.
Platforms
Windows, Linux, Android