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A primitive closed solid containing two elliptical bases of identical major and minor radii connected by a curved surface. Oblique cylinders are supported by defining the axial direction to not be perpendicular to the bottom base.


Label – A unique name that identifies the solid. (ISolid/Label)

Coordinate System – The coordinate system in which the solid is defined. Defaults to working coordinate system at time of creation. (ISolid/CoordinateSystem)

Material – Chosen material for the solid. (ISolid/Material)

Include in Simulation – Indicates if the solid is included in the simulation.  If False, the solid is also not shown in the view. (ISolid/Include)

Visible - Indicates if the solid is shown in the view. (ISolid/Visible)

Mesh Control Only - Indicates if the solid is used as a tool to control meshing. If True, the portion of the solid that does not overlap the other normal solid is thrown away prior to simulation. Additionally, the material of such a solid is irrelevant so the material parameter is hidden. (ISolid/MeshControlOnly)

Center - [LENGTH] – Center of the base of the cylinder defined in the solid’s coordinate system. (ICylinder/Center)

Major Radius - [LENGTH] - Major radius of the cylinder. (ICylinder/Radius)

Minor Radius - [LENGTH] - Minor radius of the cylinder. (IEllipticalCylinder/MinorRadius)

Height - [LENGTH] - Extent of the cylinder in the axial direction. (ICylinder/Height)

Axial Direction - Direction of the axis of the cylinder defined in the solid’s coordinate system. This is a unitless vector and its magnitude is irrelevant. (ICylinder/Direction)

Major Axis Direction - Direction of the major axis of the cylinder defined in the solid's coordinate system. This is a unitless vector and its magnitude is irrelevant. (IEllipticalCylinder/MajorAxisDirection)

Split Curved Faces - If true, curved faces are split into multiple faces. (ICylinder/SplitPeriodicFaces)


User Interface Button

Command Details

Mouse click order is:
1. Center
2. Major Axis Direction and Radius
3. Minor Radius
4. Height
See command hint for detailed instructions.


Both radii must be greater than zero. The magnitude of the axial and bottom major axis directions must be non-zero.

Other Notes

You can collapse a cylinder in the axial direction by setting the height to zero as one method of constructing a 2D circle (also known as a sheet body).

Example Creation Script

Solid_1 = Geometry_1.EllipticalCylinder("Elliptical Cylinder_1", "World", "Air", "0.002, 0.01, 0", "0, 0, 1", "0, 1, 0", "-0.005", "0.014", "0.005")

Scripting Interfaces


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