– The X center of the ellipse. Default is 0.
– The Y center of the ellipse. Default is 0.
– The radius of the ellipse in the x direction. Default is 1.
– The radius of the ellipse in the y direction. Default is 1.
– The start angle of the curve in radians starting from the positive X axis. Default is 0.
– The end angle of the curve in radians starting from the positive X axis. Default is 2 x Math.PI.
– Whether the ellipse is drawn clockwise. Default is false.
– The rotation angle of the ellipse in radians, counterclockwise from the positive X axis Default is 0.
This constructor creates a new Curve.
Whether the ellipse is drawn clockwise.
The end angle of the curve in radians starting from the middle right side.
The rotation angle of the ellipse in radians, counterclockwise from the positive X axis Default is 0.
The start angle of the curve in radians starting from the middle right side.
The X center of the ellipse.
The Y center of the ellipse.
This value determines the amount of divisions when calculating the cumulative segment lengths of a curve via .getLengths. To ensure precision when using methods like .getSpacedPoints, it is recommended to increase .arcLengthDivisions if the curve is very large. Default is 200.
The radius of the ellipse in the x direction.
The radius of the ellipse in the y direction.
Generates the Frenet Frames. Requires a curve definition in 3D space. Used in geometries like TubeGeometry or ExtrudeGeometry.
Get total curve arc length.
Get list of cumulative segment lengths.
A position on the curve according to the arc length. Must be in the range [ 0, 1 ].
If specified, the result will be copied into this Vector, otherwise a new Vector will be created.
Returns a vector for a given position on the curve according to the arc length.
A position on the curve. Must be in the range [ 0, 1 ].
If specified, the result will be copied into this Vector, otherwise a new Vector will be created.
Returns a unit vector tangent at t. If the derived curve does not implement its tangent derivation, two points a small delta apart will be used to find its gradient which seems to give a reasonable approximation.
A position on the curve according to the arc length. Must be in the range [ 0, 1 ].
If specified, the result will be copied into this Vector, otherwise a new Vector will be created.
Returns tangent at a point which is equidistant to the ends of the curve from the point given in .getTangent.
Given u in the range ( 0 .. 1 ), returns t also in the range ( 0 .. 1 ). u and t can then be used to give you points which are equidistant from the ends of the curve, using .getPoint.
Returns a JSON object representation of this instance.
Update the cumlative segment distance cache. The method must be called every time curve parameters are changed. If an updated curve is part of a composed curve like CurvePath, .updateArcLengths() must be called on the composed curve, too.
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Alias for EllipseCurve.