To compute the intersection angle

Use the Compute intersection angle function to calculate the angle that other pipelines or utilities cross the pipeline.

  1. From the map, select the two points (1) and (2) that define the pipeline. Typically these points are previously measured weld points. Then select the two points (3) and (4) that define the object crossing the pipeline. If they are not already either side of the pipeline, these two points are projected to determine the crossing point for the object.

    When two points are selected to define the pipeline, the direction between point 1 and point 2 is assumed to be the direction of flow. However, if an alignment has been defined in Pipeline options, then the alignment is used to define the direction of flow and the order of points 1 and 2 does not matter.

  2. Tap and hold in the map and select More / Compute intersection angle. Alternatively, tap and select Cogo / Compute intersection angle.

    The Compute intersection angle screen displays the pipeline definition method and the selected points defining the pipeline and the object crossing the pipeline.

  3. Tap Calc.

    The intersection angle (5) is shown. The reported intersection angle is the first angle clockwise, measured from the pipeline in the direction of flow.

    If the selected points have elevation values, the software also reports the vertical clearance. The vertical clearance is calculated assuming the points defining the pipeline are located on the top of the pipe.

  4. If required, specify a diameter for the object that crosses above the other object.
  5. To store the intersection point as a new point, select the Store check box and edit the point details as required.
  6. Tap Store to store the calculation and, if applicable, the new point in the job.

  1. From the map, select the two points (1) and (2) that define the object that crosses the pipeline.

    If they are not already either side of the pipeline, these two points are projected to determine the crossing point for the object.

  2. Tap and hold in the map and select Compute intersection angle. Alternatively, tap and select Cogo / Compute intersection angle.

    The Compute intersection angle screen displays the pipeline alignment selected in the Pipeline options screen and the selected points defining the object crossing the pipeline.

  3. Tap Calc.

    The intersection angle (3) is shown. The reported intersection angle is the first angle clockwise, measured from the pipeline in the direction of flow.

    If the pipeline has a vertical alignment and the selected points have elevation values, the software also reports the vertical clearance. The vertical clearance is calculated assuming the vertical alignment defines the top of the pipe.

  4. If the pipeline has no vertical alignment, you can measure and key in the vertical clearance.
  5. If required, specify a diameter for the object that crosses above the other object.
  6. To store the intersection point as a new point, select the Store check box and edit the point details as required.
  7. Tap Store to store the calculation and, if applicable, the new point in the job.