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A CURVE is specified by a series of points and a curve type.
A minimum of two points is required in the list to at least produce a straight line.
The following curve types are available via Curve Type:
When using the first three curve types (Bezier, Bezier without corners and B-Spline), the curve drawn will not necessarily pass through all the points specified. However, curves drawn using the final three curve types (Catmull-Rom, Closed Natural Cubic and Natural Cubic) will pass through all points specified.
The use of object references in Points: referencing LIST's containing X and Y coordinate values is a powerful way to define a CURVE. These LIST's are typically generated using an INTERLEAVE.
|Points:||List of curve point coordinates: x1,y1,x2,y2,… At least two points are required.
Object references and expressions are allowed
|Line Style:||Select LINE STYLE from list|
|Show if:||Logical expression, if FALSE then curve NOT shown, else default→TRUE|
|Transform:||Select one or more TRANSFORM from list. Order selected is order applied.|
|Curve Type:||Type of curve to be drawn (default→CATMULLROM, BEZIER, BEZIER WITHOUT CORNERS, BSPLINE, CLOSED NATURAL CUBIC, NATURAL CUBIC)|
|Delimiter:||Character to delimit object references in Points:|