Conventions used in the calculation of rotation angle - Intergraph Smart Isometrics - Help - Hexagon PPM

Intergraph Smart Isometrics Help

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English
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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
2019 R1 (7.1)
Spoolgen Version
2019 R1 (9.1)

The convention used follows that of a right-hand coordinate system as depicted in the illustration below.

The direction of the rotation about each axis is as follows:

  • Rotation about X (Rx) rotates the y-axis towards the z-axis. The rotation angle is measured clockwise from the UP axis.

  • Rotation about Y (Ry) rotates the z-axis towards the x-axis. The rotation angle is measured clockwise from the UP axis.

  • Rotation about Z (Rz) rotates the x-axis towards the y-axis. The rotation angle is measured counter-clockwise from EAST (0-degrees).

In each case, the view direction of a 2D section view through the pipe at the point where there is a branch (support, valve operator, and so forth) is along the pipe in the direction of the axis (E,N or U).

In the example below, the branch of tee is pointing EAST and has a 0-degree rotation.

Rotating the branch by 90-degrees about the UP/DOWN axis produces the following results:

In the next example, the pipe is running N-S, and the tee is inserted at 0-degrees (UP).

After rotating by 90-degrees about the N/S axis, the tee displays as shown in the illustration below.