Create Trench Network Structure

This command allows you to create or modify a trench network structure on a drawing. Before you are able to locate the trench structure, the drawing has to be open, has been cleaned up and pre-processed by such commands as Define Layer Target, Set Boundary Polyline, Make Existing Ground Surface and Make Design Surface. You can locate the trench structure by one of three methods: picking points on the drawing, entering the point number, or specifying the station and offset of a centerline. If you use centerline method, you need to specify a centerline file. After you locate a point on the drawing, you are prompted the Sewer Structure Data Dialog for entering the sewer structure information, such as Structure Name, System Name, Symbol Name, and Elevations. Take a look at the list of the trench points that have been defined. If there is any point that is connected upstream to the current point, you add it to the Upstream Connections list. The Invert Elevation and the Pipe Size fields will be filled with the information of the upstream point. Use Pipe Group allows you to set multiple pipes for the trench run by using a existing or new Pipe Group. Click OK to finish entering the trench structure data. The command will repeatedly ask you to pick a structure point until you hit Enter to finish. The trench network structure data is saved in a .sew file.

Prompts

By Pick:

Locate by pick point, point number or station-offset [<Pick>/Number/CL]?   press Enter to do Pick point

Loading edges...
Loaded 4 points and 5 edges
Created 2 triangles

Pick structure location:   pick a point
Sewer Structure Data Dialog:   enter trench structure information
Pick structure location (Enter to end):   pick a point
Sewer Structure Data Dialog:   enter trench structure information
Pick structure location (Enter to end):   pick a point
Sewer Structure Data Dialog:   enter trench structure information
Pick structure location (Enter to end):   pick a point
Sewer Structure Data Dialog:   enter trench structure information
Pick structure location (Enter to end):   press Enter to finish

By station-offset of CL:

Locate by pick point, point number or station-offset [<Pick>/Number/CL]?    CL (enter CL to do locating trench structure by station-offset of a centerline)
Specify a centerline file.

Loading edges...
Loaded 4 points and 5 edges
Created 2 triangles

Structure Station:   0 (enter the station number on the centerline)
Structure Offset:    200 (enter the offset from the centerline)
Sewer Structure Data Dialog:   enter trench structure information
Structure Station (Enter to end):    100 (enter the station number on the centerline)
Structure Offset:    200 (enter the offset from the centerline)
Sewer Structure Data Dialog:   enter trench structure information
Structure Station (Enter to end):   press Enter to finish

Prerequisite: Your drawing is open, has been cleaned up and pre-processed by such commands as Define Layer Target, Set Boundary Polyline, Make Existing Ground Surface and Make Design Surface.
Keyboard Command: locate_trench