API Reference > geometry-core > Curve > Arc3d > createScaledXYColumns createScaledXYColumns MethodStatic Create an arc from center, x column to be scaled, and y column to be scaled. createScaledXYColumns(center: undefined | Point3d, matrix: Matrix3d, radius0: number, radius90: number, sweep?: AngleSweep, result?: Arc3d): Arc3d Parameter Type Description center undefined | Point3d center of ellipse matrix Matrix3d matrix whose x and y columns are unit vectors to be scaled by radius0 and radius90 radius0 number radius in x direction. radius90 number radius in y direction. sweep AngleSweep sweep limits result Arc3d optional preallocated result. Returns - Arc3d Defined in curve/Arc3d.ts Line 186 Last Updated: 11 June, 2024