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Pyramid (LPYR)

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  • Last UpdatedMar 16, 2026
  • 1 minute read

The main use of this element is in the creation of rectangular reducers for ducting LPYR has the particular attributes as follows:

  • PAAX - direction of axis normal to top face of pyramid (the A axis):

  • this is taken to be in the Z direction

  • PBAX, PCAX - the directions of the two axes perpendicular to the A axis and mutually perpendicular to define the position of the B and C sides

  • PBTP, PCTP - length of top faces in B axis and C axis directions

  • PBBT, PCBT - length of bottom faces in B axis and C axis directions

  • PBOF, PCOF - top face offsets in B axis and C axis directions

  • PTDI - distance from origin to centre of top face along A axis

  • PBDI - distance from origin to centre of bottom face along A axis

  • TVISI - visibility of top face

  • BVISI - visibility of bottom face

    Pyramid Catalogue Primitive