The CurveBuilder class provides static methods for constructing curves.
Constructors
new CurveBuilder()
new CurveBuilder():
CurveBuilder
Returns
Methods
arc()
staticarc(origin,radius,alpha1,alpha2):Curve
Creates an arc curve.
Parameters
• origin: Vector
The origin point of the arc.
• radius: number
The radius of the arc.
• alpha1: number
The starting angle of the arc in radians.
• alpha2: number
The ending angle of the arc in radians.
Returns
A Curve object representing the arc curve.
arc3Pnt()
staticarc3Pnt(pointA,pointB,pointC):object
Constructs an arc of a circle passing through three given points.
Parameters
• pointA: Vector
The first point.
• pointB: Vector
The second point.
• pointC: Vector
The third point.
Returns
object
An object containing the constructed arc shape, radius, and center.
center
center:
Vector
radius
radius:
number
shape
shape:
Curve
arcSED()
staticarcSED(start,end,direction):object
Constructs an arc of a circle in 3D space.
Parameters
• start: Vector
The starting point of the arc.
• end: Vector
The ending point of the arc.
• direction: Vector
The direction vector of the arc.
Returns
object
An object containing the constructed arc curve, radius, and plane.
curve
curve:
Curve
plane
plane:
Plane
radius
radius:
number
bSplineCurve()
staticbSplineCurve(pointList,degree,closed):Curve
Constructs a B-spline curve based on the given list of points.
Parameters
• pointList: Vector[]
The list of points to construct the curve from.
• degree: number
The degree of the B-spline curve.
• closed: boolean
Indicates whether the curve should be closed.
Returns
A Curve object representing the constructed B-spline curve.
blendCurve()
staticblendCurve(curveA,curveB,factorA,factorB):Curve
Blends two curves together based on the given factors.
Parameters
• curveA: Curve
The first curve to blend.
• curveB: Curve
The second curve to blend.
• factorA: number
The blending factor for curveA (0 to 1).
• factorB: number
The blending factor for curveB (0 to 1).
Returns
A Curve object representing the blended curve.
circle()
staticcircle(origin,radius):Curve
Creates a circle curve with the given origin and radius.
Parameters
• origin: Vector
The origin point of the circle.
• radius: number
The radius of the circle.
Returns
A Curve object representing the circle curve.
circle3Pnt()
staticcircle3Pnt(pointA,pointB,pointC):object
Constructs a circle from three given points.
Parameters
• pointA: Vector
The first point.
• pointB: Vector
The second point.
• pointC: Vector
The third point.
Returns
object
An object containing the constructed circle curve, radius, and plane.
curve
curve:
Curve
plane
plane:
Plane
radius
radius:
number
circleBy2Tan()
staticcircleBy2Tan(curveA,curveB,point):Curve
Constructs a circle by two tangents.
Parameters
• curveA: Curve
The first curve.
• curveB: Curve
The second curve.
• point: Vector
The circle center point.
Returns
A new Curve object representing the constructed circle.
circleBy3Tan()
staticcircleBy3Tan(curveA,curveB,curveC,point):Curve
Constructs a circle by three tangent curves.
Parameters
• curveA: Curve
The first curve for tangency constraint.
• curveB: Curve
The second curve for tangency constraint.
• curveC: Curve
The third curve for tangency constraint.
• point: Vector
The circle center point.
Returns
A new Curve object representing the constructed circle.
circleCNR()
staticcircleCNR(center,normal,radius):Curve
Constructs a circular curve in 3D space using the Center-Normal-Radius (CNR) method.
Parameters
• center: Vector
The center point of the circle.
• normal: Vector
The normal vector of the circle's plane.
• radius: number
The radius of the circle.
Returns
A Curve object representing the constructed circle curve.
connectWithCurve()
staticconnectWithCurve(start,end,curve):Curve
Connects two points with a curve.
Parameters
• start: Vector
The starting point of the curve.
• end: Vector
The ending point of the curve.
• curve: Curve
The curve to connect the points with.
Returns
The resulting curve after connecting the points.
curveToSurface()
staticcurveToSurface(curve):Surface
Converts a curve to a surface.
Parameters
• curve: Curve
The curve to convert.
Returns
The converted surface.
delaunayEdges()
staticdelaunayEdges(points,plane?):object
Generates Delaunay edges from a set of points.
Parameters
• points: Vector[]
An array of Vector objects representing the points.
• plane?: Plane
An optional Plane object to set the plane of the curves.
Returns
object
A Curve object representing the generated Delaunay edges.
curves
curves:
Curve[]
graph
graph:
Map<any,any>
ellipse()
staticellipse(origin,radius1,radius2):Curve
Creates an ellipse curve.
Parameters
• origin: Vector
The origin point of the ellipse.
• radius1: number
The semi-major radius of the ellipse.
• radius2: number
The semi-minor radius of the ellipse.
Returns
A Curve object representing the ellipse curve.
helix()
statichelix(pitch,height,radius1,radius2,center,dir,leftHand):Curve
Generates a helix curve.
Parameters
• pitch: number
The pitch of the helix.
• height: number
The height of the helix.
• radius1: number
The radius at the start of the helix.
• radius2: number
The radius at the end of the helix.
• center: Vector
The base center point of the helix.
• dir: Vector
The direction vector of the helix.
• leftHand: boolean
Indicates whether the helix is left-handed or not.
Returns
A Curve object representing the helix curve.
inCircle()
staticinCircle(pointA,pointB,pointC):object
Calculates the incircle of a triangle.
Parameters
• pointA: Vector
The first corner of triangle.
• pointB: Vector
The second corner of triangle.
• pointC: Vector
The third corner of triangle.
Returns
object
An object containing the calculated circle curve, plane, and radius of the circle.
curve
curve:
Curve
plane
plane:
Plane
radius
radius:
number
inEllipse()
staticinEllipse(pointA,pointB,pointC):object
Calculates the inscribed ellipse of a triangle.
Parameters
• pointA: Vector
The first corner of triangle.
• pointB: Vector
The second corner of triangle.
• pointC: Vector
The third corner of triangle.
Returns
object
An object containing the generated ellipse curve and the plane it lies on.
curve
curve:
Curve
plane
plane:
Plane
line()
staticline(start,end):Curve
Creates a straight line curve between two points.
Parameters
• start: Vector
The starting point of the line.
• end: Vector
The ending point of the line.
Returns
A Curve object representing the straight line curve.
line2Pln()
staticline2Pln(line,planeA,planeB):Curve
Creates a straight line between two planes.
Parameters
• line: Curve
The input curve.
• planeA: Plane
The first plane to intersect with the input curve.
• planeB: Plane
The second plane to intersect with the input curve.
Returns
A new Curve object representing the straight line between the two planes.
line4Pnt()
staticline4Pnt(line,pointA,pointB):Curve
Creates a straight line from four points.
Parameters
• line: Curve
The input curve.
• pointA: Vector
The first point to project onto the input curve.
• pointB: Vector
The second point to project onto the input curve.
Returns
A new Curve object representing the straight line passing through the first and second points.
lineSDL()
staticlineSDL(start,direction,length):Curve
Creates a straight line curve in 3D space.
Parameters
• start: Vector
The starting point of the line.
• direction: Vector
The direction vector of the line.
• length: number
The length of the line.
Returns
A Curve object representing the straight line curve.
modifiedArc()
staticmodifiedArc(arc,radius,angle?):Curve
Modifies an arc by changing its radius and angle.
Parameters
• arc: Curve
The original arc to be modified.
• radius: number
The new radius for the arc.
• angle?: number
The new angle for the arc. If not provided, the end angle of the original arc will be used.
Returns
A new Curve object representing the modified arc.
nurbsCurve()
staticnurbsCurve(points,degree,closed):Curve
Creates a NURBS curve based on the given points, degree, and closed flag.
Parameters
• points: Vector[]
The control points of the curve.
• degree: number
The degree of the curve.
• closed: boolean
A flag indicating whether the curve is closed.
Returns
A Curve object representing the NURBS curve.
nurbsCurvePWKD()
staticnurbsCurvePWKD(points,weightsList,knotsList,degree):Curve
Constructs a NURBS curve using the specified control points, weights, knots, and degree.
Parameters
• points: Vector[]
The control points of the curve.
• weightsList: number[]
The weights associated with each control point.
• knotsList: number[]
The knot vector of the curve.
• degree: number
The degree of the curve.
Returns
A Curve object representing the constructed NURBS curve.
polygon()
staticpolygon(radius,countOfSides,origin):Curve
Generates a polygon shape with the specified radius and number of sides.
Parameters
• radius: number
The radius of the polygon.
• countOfSides: number
The number of sides of the polygon.
• origin: Vector
The origin point of the polygon.
Returns
A Curve object representing the generated polygon curve.
polygonEdge()
staticpolygonEdge(start,end,planePoint,countOfSides):object
Generates a polygon from a single edge.
Parameters
• start: Vector
The starting point of the edge.
• end: Vector
The ending point of the edge.
• planePoint: Vector
A point on the plane in which the edge lies.
• countOfSides: number
The number of sides of the polygon.
Returns
object
An object containing the generated polygon curve, the origin of the circle that circumscribes the polygon, the radius of the circumscribed circle, and the radius of the inscribed circle.
curve
curve:
Curve=polygon
inRadius
inRadius:
number
origin
origin:
Vector=outCircle.plane.origin
outRadius
outRadius:
number
polyline()
staticpolyline(pointList,closed):Curve
Creates a polyline curve from a list of points.
Parameters
• pointList: Vector[]
The list of points defining the polyline.
• closed: boolean
Indicates whether the polyline is closed or not.
Returns
A Curve object representing the polyline curve.
rectangle()
staticrectangle(origin,width,length):Curve
Creates a rectangle curve.
Parameters
• origin: Vector
The origin point of the rectangle.
• width: number
The width of the rectangle.
• length: number
The length of the rectangle.
Returns
A Curve object representing the rectangle curve.
rectangle2Pnt()
staticrectangle2Pnt(pointA,pointB):Curve
Creates a rectangle curve based on two given points.
Parameters
• pointA: Vector
The first corner point of the rectangle.
• pointB: Vector
The second corner point of the rectangle.
Returns
A Curve object representing the rectangle curve.
rectangle3Pnt()
staticrectangle3Pnt(aPnt,bPnt,cPnt):Curve
Creates a rectangle in 3D space using three points.
Parameters
• aPnt: Vector
The first corner point of the rectangle.
• bPnt: Vector
The second corner point of the rectangle.
• cPnt: Vector
The third point along the rectangle edge is opposite the first and second points.
Returns
A Curve object representing the rectangle.
rectangleByCenter()
staticrectangleByCenter(center,width,length):Curve
Creates a rectangle by specifying the center point, width, and length.
Parameters
• center: Vector
The center point of the rectangle.
• width: number
The width of the rectangle.
• length: number
The length of the rectangle.
Returns
A Curve object representing the rectangle.
star()
staticstar(origin,radiusIn,radiusOut,countOfSides):Curve
Generates a star-shaped curve.
Parameters
• origin: Vector
The origin point of the star.
• radiusIn: number
The radius of the inner points of the star.
• radiusOut: number
The radius of the outer points of the star.
• countOfSides: number
The number of sides of the star.
Returns
A Curve object representing the star-shaped curve.
tangentArcs()
statictangentArcs(circle1,circle2,radius):object
Calculates the tangent arcs between two circles.
Parameters
• circle1: Curve
The first circle.
• circle2: Curve
The second circle.
• radius: number
The radius of tangent arcs.
Returns
object
An object containing the tangent lines as tangent1 and tangent2.
arc1
arc1:
Curve
arc2
arc2:
Curve
Throws
Error if the circle is not of type Circle.
Throws
Error if the circles are not in the same plane.
tangentLines()
statictangentLines(point,circle):object
Calculates the tangent lines between a given point and a circle.
Parameters
• point: Vector
The point to calculate the tangent lines from.
• circle: Curve
The circle to calculate the tangent lines to.
Returns
object
An object containing the tangent lines as tangent1 and tangent2.
tangent1
tangent1:
Curve
tangent2
tangent2:
Curve
Throws
Error if the curve is not of type Circle.
Throws
Error if the circle and the point are not in the same plane.
tangentLinesEx()
statictangentLinesEx(circle1,circle2):object
Calculates the tangent lines between two circles.
Parameters
• circle1: Curve
The first circle.
• circle2: Curve
The second circle.
Returns
object
An object containing the tangent lines as tangent1 and tangent2.
tangent1
tangent1:
Curve
tangent2
tangent2:
Curve
Throws
Error if the circle is not of type Circle.
Throws
Error if the circles are not in the same plane.
tangentLinesIn()
statictangentLinesIn(circle1,circle2):object
Calculates the tangent lines between two circles.
Parameters
• circle1: Curve
The first circle.
• circle2: Curve
The second circle.
Returns
object
An object containing the tangent lines as tangent1 and tangent2.
tangent1
tangent1:
Curve
tangent2
tangent2:
Curve
Throws
Error if the circle is not of type Circle.
Throws
Error if the circles are not in the same plane.
voronoi2D()
staticvoronoi2D(points,boundary?,plane?):Curve[]
Computes the Voronoi diagram in 2D for a given set of points.
Parameters
• points: Vector[]
An array of Vector objects representing the points.
• boundary?: Curve | Surface | Solid
Optional boundary object (Surface, Solid, or Curve) to constrain the Voronoi diagram.
• plane?: Plane
Optional Plane object to project the points onto before computing the Voronoi diagram.
Returns
Curve[]
An array of Curve objects representing the Voronoi diagram.