To Extend a Pipeline Using a Csys Reference

1. Make sure there is a free end or start feature.

2. Click Extend. The Extend dialog box opens.

3. Select To Coordinates from the list.

4. Select a coordinate system or click the Use Route Csys check box to use the route coordinate system as a reference.

5. Select the Dimension options:

◦ Select a System:

▪ Cartesian—Uses Cartesian coordinates for dimensions. This is the default.

▪ Cylindrical—Uses cylindrical coordinates for dimensions.

▪ Spherical—Uses spherical coordinates for dimensions.

◦ Use the Angle box to define the format of the angle in the selected system:

▪ Degrees—The angle is expressed as degrees.

▪ Gradient Ratio—The angle is expressed as a ratio. For example, for a 1:25 slope, set the ratio to 25. The end of the pipe segment drops 1 unit for every 25 units it moves forward.

▪ Gradient Percent—The angle is expressed as a percentage. For example, a 1:25 slope, set the angle to 4. The end of the pipe segment drops 4 percent of its total forward length.

The Angle option is not applicable for the Cartesian system. The angle dimension is always displayed in degrees irrespective of the format specified in the Angle box. |

◦ Select a dimension Type:

▪ Relative—The extension is created relative to the start of the segment.

▪ Absolute—The extension is created relative to the global coordinate system.

6. Set the value for the extend in the Coordinates section:

◦ For Cartesian, type a value in the box, drag the handle in the graphics window, or use the thumbwheel to change an axis coordinate.

◦ For Spherical, type a value in the box, drag the handle in the graphic window, or use the thumbwheel to change the radius, Theta, or Phi.

◦ For Cylindrical, type a value in the box, drag the handle in the graphics window, or use the thumbwheel to change the radius, Theta, or Z-axis.

Click to lock the coordinate value and click to unlock it. |

7. Click OK to extend the pipe segment and quit the dialog box or click Apply or middle-click to extend the segment and configure a new segment.