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CAD Circles

Also see Circle codes Circles use shortcut key C (Circle) See also: circle codes See also: dynamic circles

CIR Cen Radius [Z-Axis]

Circle from centre, radius [Arc Vector] # Circle (360-degree) C20 = P20 VAL(25) DZ

CIR Axis Point

Circle from centerline and point on circle. Axis-centerline centerline of new circle. Point on Circle # Center, tangential to line or circle C23=L(P(0 0 0) DX) P(10 10 0)

CIR Cen Tang

Circle from center, tangential to element. Centerpoint center of new circle. Tang tangent-element: point, line, circle or polygon; line or circle in CCV. [Version] only for tangent to circle: 1=small circle, 2=big circle. # Center, tangential to line or circle C1 = P1 L1 C1 = P1 C1

CIR Tang Tang Radius [Version]

Circles, tangential to two elements, with a fixed radius and position indication. Element: (currently only) point, line or arc. Version: 1 - 8 (there are up to 8 solutions. Select with PgUp/PgDown keys). # Tangential to 2 elements, radius. # C1 = P1, L1, Radius, Side # C2 = P1, C1, Radius, Side # C5 = L1, L2, Radius, Side # C5 = L1, C1, Radius, Side # C5 = C1, C2, Radius, Side L1 = X(10) L2 = Y(10) C1 = L1 L2 VAL(5) MOD(1) # 2 points on the circumference, radius. # C1 = P1 P2 radius side Z-Axis Vector P20 = P(98.6 5.4 0) P21 = (114.5 -15.2 0) C22 = P20 P21 VAL(12) MOD(1) DZ # Point on the perimeter, tangent, radius. # C1 = P1 L1 radius side L20 = P (44.6 -32.8 0) P (86.5 -69.3 0) P26 = P (56.2 -35.5 0) C21 = P26 L20 VAL (8) MOD (2) # Point on the perimeter, tangent to a circle. # C2 = P1 C1 radius side C20 = P(114.5 -15.2 0) VAL(12) DZ P27 = P(96.9 -19.7 0) C21 = P27 C20 VAL(8) MOD(1)

CIR Tang Tang Tang [Version]

Circle tangential to 3 elements. Element: (currently only) point, line or arc. Version: 1 - 8 (there are up to 8 solutions; PgUp/PgDown keys). Entry points must exactly on an input element. # Circle between 3 lines C20 = L20 L21 L22

ARC Cen Ang1 Ang2 Radius [Direction of Rotation]

Circular arc by center, start angle, end angle and radius. Direction of Rotation: CW shows clockwise, the default is CCW (counter clockwise). # Central quadrant, R = 10, clockwise. C21 = ARC P20 ANG(0) ANG(90) 10 CW

ARC Cen PT Angle [Z-Axis] ARC

Arc through centre, starting point and opening angle. Arc vector is optional. # Focal starting point quarter C21 = ARC P20 P21 ANG(90) DZ

ARC PT PT Radius [Z-Axis] [CW/CCW] [Version] ARC

Circular arc by starting point, end point and radius. Z-axis-vector is optional. Version 1 and Default = openingAngle 0-180 degree Version 2 = openingAngle 180-360 degree # Arc from start point to endpoint radius arc vector C21 = ARC P(251 23 0) P(189 75 0) VAL(50) DZ

ARC PT Tang Radius [Angle] [Z-Axis] [CW/CCW] ARC

Circular arc by starting point, starting direction and radius. Starting direction: the tangent-direction to the circle in the starting point. Vector, line, circle, polygon, ellipsis, b-spline, clothoid. Radius. Angle: opening-angle, optional. Default is 360 degrees. Axis-vector: optional. Invert vector to change side (eg "DIZ"). [CW/CCW] is the direction of rotation. Change with PageUp-key. # Example: Final tangent of a clothoid (spiral-form curve) as a starting direction. S20 = CLOT P(0 0 0) DX ANG(30) 0 10 P20 = P(S20 1) D20 = TNG P20 S20 C20 = ARC P20 D20 25 ANG(30)


Circular arc by starting point, end point and center Arc vector is optional. [CW/CCW] is the direction of rotation. Default is "CW". C20=ARC P(10,6) P(16 0) DIZ


Arc by three points on the perimeter. [CW/CCW] is the direction of rotation. Default is "CW". C20 = ARC1 P(0 0) P(10 0) P(10 10) -------------------------------------------------- ---------------- Others: # change sense of rotaion of existing circle C2=C1,REV