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/SURF/ELLIPS

/SURF/ELLIPS

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/SURF/ELLIPS

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Block Format Keyword

/SURF/ELLIPS - Surface Definition (Hyper-ellipsoid)

Description

Describes the hyper-ellipsoid surface definition.

Format

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/SURF/ELLIPS/surf_ID/unit_ID

surf_title

skew_ID

n

 

 

 

 

 

 

 

 

Xc

Yc

Zc

 

 

 

 

a

b

c

 

 

 

 
hmtoggle_plus1Flag Definition

Field

Contents

surf_ID

Surface identifier

(Integer, maximum 10 digits)

unit_ID

Optional unit identifier

(Integer, maximum 10 digits)

surf_title

Surface title

(Character, maximum 100 characters)

skew_ID

Skew identifier defining the initial orientation of the surface

(Integer)

n

Degree of the hyper-ellipsoid

Default = 2  (Integer)

Xc

Center coordinate

(Real)

Yc

Center coordinate

(Real)

Zc

Center coordinate

(Real)

a

Semi-axis length

(Real)

b

Semi-axis length

(Real)

c

Semi-axis length

(Real)
hmtoggle_plus1Comments
1.All nodes must belong to a shell element, a brick element or a triangular shell element.
2.A surface cannot be defined using Madymo surfaces.
3.A surface cannot be defined by associating a hyper-ellipsoid and another type of surface.
4.The equation of the hyper-ellopsoid is:

clip0595

5.A hyper-ellipsoid can only be a master surface of /INTER/TYPE14.
6.Input format for MDELLIPS, see /SURF/MDELLIPS .

See Also:

Skew and Frame (/SKEW & /FRAME)