Name
ccontext:CurveTo -- add cubic Bezier spline to path
Synopsis
ccontext:CurveTo(x1, y1, x2, y2, x3, y3)
Function
Adds a cubic Bezier spline to the path from the current point to position (x3, y3) in user-space coordinates, using (x1, y1) and (x2, y2) as the control points. After this call the current point will be (x3, y3).

If there is no current point before the call to ccontext:CurveTo() this function will behave as if preceded by a call to ccontext:MoveTo() with x1 and y1.

Inputs
x1
the X coordinate of the first control point
y1
the Y coordinate of the first control point
x2
the X coordinate of the second control point
y2
the Y coordinate of the second control point
x3
the X coordinate of the end of the curve
y3
the Y coordinate of the end of the curve
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