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CurvePrimitive

constructor remarks json
LineSegment3d.create Simple line segment {"lineSegment":[[0,0,0],[4,0,0]]}
LineString3d.create linestring by points {"lineString":[[0,0,0],[4,0,0],[4,4,0],[0,4,0]]}
Arc3d.createCircularStartMiddleEnd arc passing through 3 points {"arc":{"center":[2,2.000000000000001,0],"vectorX":[-2,-2.000000000000001,0],"vectorY":[2.000000000000001,-2,0],"sweepStartEnd":[0,179.99999999999997]}}
Arc3d.create circular arc {"arc":{"center":[0,0,0],"vectorX":[4,0,0],"vectorY":[0,4,0],"sweepStartEnd":[-45,90]}}
Arc3d.create elliptic arc {"arc":{"center":[0,0,0],"vectorX":[4,0,0],"vectorY":[0,12,0],"sweepStartEnd":[-45,190]}}
BSplineCurve3d.create curve by poles {"bcurve":{"points":[[0,0,0],[4,0,0],[4,4,0],[0,4,0]],"knots":[0,0,0,0,1,1,1,1],"closed":false,"order":4}}

CurveCollections

constructor remarks json
Path.create path with line, arc, line {"path":[{"lineSegment":[[4,4,0],[4,0,0]]},{"arc":{"center":[0,0,0],"vectorX":[4,0,0],"vectorY":[0,4,0],"sweepStartEnd":[0,180]}},{"lineSegment":[[-4,4.898587196589413e-16,0],[0,0,0]]}]}
Loop.create loop with semicircle and diameter segment {"loop":[{"arc":{"center":[0,0,0],"vectorX":[4,0,0],"vectorY":[0,4,0],"sweepStartEnd":[0,180]}},{"lineSegment":[[-4,4.898587196589413e-16,0],[4,0,0]]}]}
ParityRegion.create rectangle with semicirular hole {"parityRegion":[{"loop":[{"lineString":[[-4.5,-4.5,0],[4.5,-4.5,0],[4.5,4.5,0],[-4.5,4.5,0],[-4.5,-4.5,0]]}]},{"loop":[{"arc":{"center":[0,0,0],"vectorX":[4,0,0],"vectorY":[0,4,0],"sweepStartEnd":[0,180]}},{"lineSegment":[[-4,4.898587196589413e-16,0],[4,0,0]]}]}]}

SolidPrimitive types

constructor remarks json
Sphere.createCenterRadius(center, radius) full sphere {"sphere":{"center":[1,1,0],"radius":3}}
Cone.createAxisPoints(centerA, centerB, radiusA, radiusB, capped) full sphere {"cone":{"capped":true,"start":[-1,1,0],"end":[3,2,0],"startRadius":1.5,"endRadius":2,"xyVectors":[[-0.24253562503633297,0.9701425001453319,0],[0,0,1]]}}
Box.createDgnBox(cornerA, xVector, yVector, baseX, baseY, topX, topY, capped) box with sides slanting inward {"box":{"origin":[-1,1,0],"baseX":4,"baseY":3,"capped":true,"topOrigin":[-1,2,4],"topY":2}}
TorusPipe.createInFrame(frame, majorRadius, minorRadius, sweep, capped) 90 degree elbos {"torusPipe":{"center":[1,1,1],"majorRadius":3,"minorRadius":1,"xyVectors":[[0,1,0],[-0.8320502943378437,0,0.5547001962252291]],"sweepAngle":90,"capped":true}}
LinearSweep.create(contour, sweepVector, capped) swept hexagon {"linearSweep":{"contour":{"loop":[{"lineString":[[2,0,0],[1.5,0.8660254037844386,0],[0.5,0.8660254037844387,0],[0,0,0],[0.5,-0.8660254037844385,0],[1.5,-0.866025403784439,0],[2,0,0]]}]},"capped":true,"vector":[0,0,4]}}
RotationalSweep.create(contour, axisOfRotation, sweepAngle, capped) hexagon rotated {"rotationalSweep":{"axis":[0,1,0],"contour":{"loop":[{"lineString":[[2,0,0],[1.5,0.8660254037844386,0],[0.5,0.8660254037844387,0],[0,0,0],[0.5,-0.8660254037844385,0],[1.5,-0.866025403784439,0],[2,0,0]]}]},"capped":true,"center":[-1,0,0],"sweepAngle":135}}

Isolated point

class name property name Minimal Example
CoordinateXYZ isolated point {"point":[0,0,0]}

Last Updated: 10 June, 2025