PlantWise Help

Segment/Point Manipulator

The Segment/Point Manipulator lets you manually relocate piping or cable segments or vertices. When you move a segment, the manipulator changes the connecting segments of the pipe/cable to keep the segments connected and creates additional bends and segments, if required. When pipeway pipes are manipulated, the pipeline/cable will need to be re-routed. With the pipeline/cable manipulator, you can place pipeline or cable segments anywhere; the result is the responsibility of yours.

Segment/Point Manipulator in Segment and Point modes.

Pipelines and cables can be partially frozen, meaning that you can choose to freeze just specified segments of a path and to leave the remainder of the route in the control of the AutoRouter. When lines/cables are partially frozen, the frozen segments will remain where they were frozen regardless of layout changes.

There are multiple ways to open the Segment/Point Manipulator:
  • Select he Modify tool icon on the Router Toolbox in CAD and double click on the pipe or cable to be manipulated;
  • Select Modify > Manipulate Pipe Route menu of the pipeline’s Pipeline Editor;
  • Select Modify > Manipulate menu of the cable’s Cable Editor;
  • Select Modify > Manipulate Pipe/Cable Route menu of the Connectivity Editor.

When the manipulator has been opened, the selected pipeline/cable changes to the highlight drawing level and becomes represented by a single line.

Regardless of what is being manipulated, pipeline or cable, segments or points, much of the dialog stays the same.
SettingDescription
Segment / Point The two radio buttons in the upper left hand corner, one for segment manipulation and the other for points.
Prev / Next You can scroll through points or segments with the Prev and Next buttons. Prev selects the point/segment upstream of the current one while the Next moves downstream.
Points List The Points List lists the centerline coordinates of each vertex of the pipeline/cable. Points are listed from Origin to Terminus.
As indicated with the lighter shading of the Points List, there is a special pop up menu that opens when you click the right mouse button over that area. This menu simplifies freezing and thawing points and segments.
  • Freeze this point/segment – marks the selected point or segment frozen;
  • Freeze to Origin – freezes the current point and all points upstream of it;
  • Freeze to Terminus – freezes the current point and all points downstream of it;
  • Freeze to previously frozen – freezes the current point and all points between it and the next upstream frozen point;
  • Freeze to next frozen – freezes the current point and all the points between it and the next downstream frozen point;
  • Thaw this point/segment – thaws the selected point or segment;
  • Thaw to Origin – thaws the current point and all the points upstream of it;
  • Thaw to Terminus – thaws the current point and all the points down stream of it;
  • Thaw to previously thawed – thaws the current point and all the points between it and the next upstream thawed point; and
  • Thaw to next thawed – thaws the current point and all the points between it and the next downstream thawed point.
Relative Offset You can move points and segments in any orthogonal direction by any value by entering the value in the Relative Offset field and then clicking on one of the direction buttons (N, S, E, W, Up, Dn). Once one of the direction buttons has been clicked, the coordinate of the point or points will be updated in the points list.
Dynamic – Move Any point or segment can be moved dynamically in CAD using the Dynamic Move button. Click the button first, then grab/drop the desired point/segment in CAD. (The axis lock can help to improve accuracy.) The previous and next segments will be trimmed or stretched as needed to accommodate the new location.
Edit - Undo Any actions made since the dialog was opened can be reversed with the Undo button found in the Edit section of the dialog.
Partial Freeze/Thaw A selection of points can be frozen or thawed in the Partial Freeze/Thaw section towards the bottom of the dialog.
  • Mark Frozen – a range of points is frozen by entering the numbers to be frozen (such as 2-5 or 2-5, 7-8) in the Range field and clicking the Mark Frozen button.
  • Thaw – will thaw the selected range.
You do not have to partially freeze segments or points that they have manipulated. As long as the Freeze button is clicked when all manipulations are completed, the changes will be implemented and the entire path of the pipeline or cable will be frozen.
Note: The individual points are not frozen; rather, the endpoints of segments are frozen. If you try to freeze a solitary point and not both endpoints of a segment, PlantWise will prompt you when the Freeze button is clicked.
Freeze, Thaw, and Cancel The buttons at the bottom of the dialog are used to:
  • Freeze – confirm all action made (Freeze),
  • Thraw – thaw the pipeline/cable, and
  • Freeze – close the dialog.

Segment Manipulator

When manipulating segments, the selected segment is displayed in CAD with a cylinder surrounding the centerline of the pipe/cable. The diameter of the segment cylinder equals the nominal pipe diameter or the outer diameter of the cable.

Segment Manipulator.

The Segment Manipulator does not apply restrictions on which direction you can move a segment. This can mean that new segments may need to be created (by adding points) depending on the desired effect of the segment move.
Note: the use of the “>>” characters in the Range # column of the Points List indicate which two points make up the current segment.
Manipulation Procedure
Moving Segments A segment can be moved directionally or vertically using the N, S, E, W, UP, or DN buttons. The distance a segment is moved when one of the directional buttons is clicked is controlled by the value in the Relative Offset field. The route shown in the below image shows the original route that is manipulated for later examples.

Sample pipeline.

Routed segments can be moved either in the direction of or orthogonally to its previous and/or next segments.

A — Moving the original east-west segment to the north; or, B — orthogonally down.

A shows the movement of a segment in the direction of its previous and next segments, while B shows orthogonal movement. Note that when the segment was moved orthogonally, the necessary connecting segments were automatically added.

When the previous and next segments do not run in the same direction the manipulator will add only the segment necessary.

Vertical segment with previous and next segments running in different directions. Then movement of the vertical segment to the south.

If the movement direction is along the direction of the segment, the segment will be extended in that direction. (For example, if the W button is selected for an east-west running segment, the western point of the segment will be extended by the distance in the Relative offset field.)

Changing Segment Length

The length of a segment can be changed through the Modify Segment Length options. Before editing the length of a segment, a fixed end must be selected. The Fixed end radio buttons are to the left of the Prev and Next buttons and fix the point that is either nearer the origin (Up stream) or the terminus (Down stream).

To extend the segment a certain amount, enter that value in the field to the right of the Extend button and click on the Extend button. To make the segment a specific length, enter that value into the field to the right of the Absolute button and click on the Absolute button.

Adding Slope to a Segment

You can enter a slope for the segment in the Slope input area of the dialog. As with changing a segment length, a fixed end must be selected before adding slope to a segment.

After filling in values for the Rise and Run of the segment, you must check either the Ratio or the Absolute button.

If the Ratio button is clicked, the values will be used as a relative slope from the fixed point. For example, if 1 is entered in the Rise field and 4 in the Run field the segment will be given a 25% slope from the fixed point. (Negative slopes can also be input.)

If the Absolute button is clicked, the values are taken to be the total horizontal and vertical change in the segment from the fixed point, and the length of the segment will be altered to meet the new requirement.

Segments with Reducers In the points list of the Segment/Point Manipulator, the start and endpoints of eccentric reducers will be indicated with an R in the left hand column. Pipeline segments that have reducers in them will be manipulated as if the reducer points did not interrupt the segment.

Point Manipulator

Points are selected with the Next or Prev buttons. The selected point is shown with an expanded segment about the point that has the nominal diameter of the pipe or the outer diameter of the cable.

The move functions for the point manipulator are the same as those for the segment manipulator.

The point manipulator will also allow you to edit the Absolute Coordinates of a point. Individual X-, Y-, and Z-coordinates can be entered in the fields. Alternatively, a point can be “grabbed” from CAD with the Get button. To change a point this way, first click on the Get button and then select the desired position in CAD. This will input the new coordinates in the Absolute Coordinates fields. No coordinate changes will be implemented until the Apply button is clicked.

Elbows of 90° and 45° can be created with the Point Manipulator using the 90 Elbow and 45 Elbow buttons. When changing an elbow, you can select which point to anchor so that the correct segments are altered. Most commonly, you want the previous and next points to stay in their current location while moving the active point. To do this, the Prev and Next or Prev check boxes are selected and turn off the Active box. You then just needs to click on the button for the desired elbow angle. It is possible that the location of the anchored points are too close together for PlantWise to create the elbow. If that is the case you will be notified.

You can also Add or Delete points. These buttons are in the Edit section of the dialog along with Apply and Undo. When a point is added in the manipulator, it is given the same coordinates as the currently selected point and added to the point list down stream from the original point. The new point can then be edited like any other.

After making changes with the Point Manipulator, it is a good practice for you to Check the route. If the router finds any errors for a point: a flag will come up in the Range # column of the Points List next to the point, and a comment will appear in the Comments about Current Point field when the point is selected. Common flags are L (for Length), and A (for Angle).

Relocating Frozen Pipeline/Cable Paths

If a change in layout occurs after freezing a pipe or cable, the pattern of the frozen line can be maintained if:
  • both endpoints of the have moved by the same vector (distance and direction);
  • if one endpoint has been moved parallel to its pipeway approach; or
  • if the pipeway has moved along the same vector of the endpoints.
If an endpoint has moved and does not fall into one of the above categories, then the line or cable will be thawed and the router will record the following exception:
Previously frozen <direct, to-pipeway, or from-pipeway> 
path is invalid, probably because either one endpoint moved 
or both endpoints moved by different amounts. Reverting to 
router calculated path.