PathOperationEllipticArcTo

Type

statement

Summary

Adds an arc to a path.

Syntax

arc to <mEnd> with radii <mRadii> rotated by <mAngle> on <mPath>

Description

Adds an arc from the previous point to mEnd on mPath, following a section of an ellipse with the given radii & angle. As there can be two different ellipses that match the parameters, and two potential arcs for each ellipse, this variation of "arc to ..." will select the arc that most closely matches the direction from the last point to the current position on mPath.

Parameters

Name	Type	Description
mEnd		An expression which evaluates to a point.
mRadii		An expression which evaluates to a list of numbers.
mAngle		An expression which evaluates to a number.
mPath		An expression which evaluates to a path.

Examples

// Construct a path tracing out a rectangle with rounded bottom corners.
variable tPath
put the empty path into tPath

// Begin a new subpath
move to point [0, 0] on tPath

// Trace the left edge
line to point [0, my height - 25] on tPath

// Continue path with an arc to the bottom edge
arc to point [my height, 25] with radii [25, 25] rotated by 0 on tPath

// Trace the bottom edge
line to point [my width - 25, my height] on tPath

// Continue path with an arc to the right edge
arc to point [my width, my height - 25] with radii [25, 25] rotated by 0 on tPath

// Trace the right edge
line to point [my width, 0] on tPath

// Close the path with a line back to the starting point
close path on tPath