Applying the conventions - Intergraph Smart Isometrics - Help - Hexagon PPM

Intergraph Smart Isometrics Help

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English
Product
Intergraph Smart Isometrics
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SmartPlant Foundation / SDx Version
10
I-Configure Version
6.0(2016)
Isogen Version
13.0(2016)
Smart Isometrics Version
7.0(2019)
Spoolgen Version
9.0(2019)

Orthogonal pipe (aligned with axis)

  • In a pipe running N-S, the view direction for a section sketch is NORTH, with UP being 0-degrees.

  • In a pipe running E-W, the view direction for a section sketch is EAST, with UP being 0-degrees.

  • In a pipe running U-D, the view direction is UP, with EAST being the 0-degree point.

Horizontal pipe (2D skew and falling / sloped lines)

Angle is measured clockwise from the UP axis looking along the pipe toward NORTH or EAST:

This convention is also applied for small falls / slopes in horizontal lines. There is still a clear understanding of the U/D axis in a sloped line, even though in reality it is rotated by a small amount from vertical.

General non–orthogonal pipe

It is mathematically possible to compute the angle of rotation of a component in a general case, where the pipeline is running at some arbitrary angle. However, it is extremely difficult to interpret what the "rotation" angle means and difficult to see how it would be helpful to a fabricator.

These situations are probably best left to manual annotation and selection of sketch with appropriate fabrication details.