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Renumber Cross Sections Command

The Renumber Cross Sections command allows the user to automatically renumber cross sections, reaches, and junctions along a defined flow path.

Follow the steps below to use the Renumber Cross Sections command:

  1. From the Input ribbon menu, click the Cross Sections dropdown menu and then select the Renumber Cross Sections command.
    Renumber Cross Sections command input ribbon menu
  2. The Renumber Cross Sections dialog box will be displayed.
    Renumber Cross Sections dialog box

The following sections describe the Renumber Cross Sections command and how to interact with the above dialog box.

Selecting Reaches

The Select Reaches panel is used to select all the reaches (or cross sections) that define the river path.

Selecting Multiple (Interconnected) Reaches

The Select Multiple (Interconnected) Reaches section is used to manually select the reaches (or cross sections) that make up a river path. If a reach (or cross section) is already selected on the Map View prior to running this command, the same reach (or cross section) will be shown selected within the table.

Alternatively, the user can click the [Pick] button to select the reaches (or cross sections) from the Map View. On clicking the [Pick] button, the Renumber Cross Sections dialog box will temporarily disappear, and a prompt will be displayed on the status bar instructing the user to select the reaches (or cross sections) from the Map View. After selecting the reaches (or cross sections), the user can press the [Enter] key or right-click and choose Done from the displayed context menu. The Renumber Cross Sections dialog box will be redisplayed, and the total number of selected reaches (or cross sections) will be displayed in the Total selected read-only field.
Total selected read-only field

Notes:

  • The user can select multiple reaches (or cross sections) from the Map View prior to running the Renumber Cross Sections command by holding the [Ctrl] key while selecting the desired reaches (or cross sections).
  • Only those reaches that contain irregular cross sections are listed.
  • Multiple reaches that reference the same irregular cross section geometry are not listed.

Manual Editing

This section contains a data grid listing all IDs of the selected cross sections, reaches, and junctions. The data grid also lists the reach distance and total reach distance in miles and feet. The values in the last three columns of the data grid provides a preview of the cross sections, reaches, and junctions naming specifications defined in the Cross Section Renumbering, Reach Renumbering, and Junction Renumbering panels.

Cross Section Renumbering

This panel allows the user to number the cross sections based upon river chainage or incrementally.
Cross Section Renumbering panel

Cross Section River Stationing

This section is used to define the river stationing to be used for the constructed cross sections. Cross sections can be numbered using a fixed increment or by the river chainage along the river reach. The river chainage can be in miles or feet if working in US units, or kilometers or meters if working in metric (SI) units.

The following options are provided in the data panel:

  • Cross section ID prefix: This option allows a prefix to be added to the start of the cross section ID.
  • Cross section ID suffix: This option allows a suffix to be added to the end of the cross section ID.
  • Cross section ID preview: This entry provides a preview of the cross section naming specifications defined above.
  • Numbering direction: This dropdown combo box defines the direction that the cross section IDs are increasing. The following options are available
    1. Increasing Downstream
    2. Increasing Upstream (HEC-RAS style) (default)
      Based on the option selected, the content of the Use reach distance radio button subsection will be changed.

Use Reach Distance

The Use reach distance subsection is used to number the cross section by using the river chainage along the river reach. The following entries are provided:

  • Downstream cross section ID: This entry provides a cross section ID that will be used as the downstream most river station.
    Note that if the Increasing Downstream option is selected in the Numbering direction dropdown combo box, then the Downstream cross section ID entry will be changed in the Upstream cross section ID. In addition, the numbering methodology is altered to account for the selected direction.
    Downstream cross section ID entry
  • Upstream cross section ID: This entry provides a cross section ID that will be used as the upstream most river station.
  • Distance units: This dropdown combo box defines the unit for the reach length. Two available options are:
    1. Feet
    2. Miles
  • Decimal precision: This optional checkbox defines the decimal precision that will be used in determining the cross section river stations. By default, this check box is disabled (grayed out). If enabled, then the user can enter a value ranging from 0 to 15.

Use Auto Increment

The Use auto increment subsection is used to number the cross section using a fixed increment. The following options are provided.

  • Cross section ID digits: This option permits specification of a set number of digits to use for the cross section ID. For example, using 3 digits causes the cross section ID to be of the format 001, 002, etc.
  • Next available Cross section ID: This entry defines the next element ID number to be used.
  • Cross section ID increment: This entry defines the increment to use when numbering elements. The default value is 1.

Previewing Cross Section ID

Clicking on the [Preview] button causes the software to fill the cross section IDs in the New Cross Section ID column of the Manual Editing data grid.
Preview of Cross Section ID

Reach Renumbering

This panel allows the user to number the reaches based upon river chainage or incrementally. By default, the Reach Renumbering checkbox panel is checked. If the panel checkbox is unchecked, then the content of this panel will be disabled and the reach will not be renumbered.
Preview of Cross Section ID

Reach Stationing

This section is used to define the river stationing to be used for the constructed reaches.

The following options are provided in the data panel:

  • Reach ID prefix: This option allows a prefix to be added to the start of the reach ID.
  • Reach ID suffix: This option allows a suffix to be added to the end of the reach ID.
  • Reach ID preview: This entry provides a preview of the reach naming specifications defined above.
  • Numbering direction: This dropdown combo box defines the direction that the reach IDs are increasing. The following options are available:
    1. Increasing Downstream
    2. Increasing Upstream (HEC-RAS style) (default)
      Based on the option selected, the content of the Use reach distance radio button subsection will be changed.

Use Reach Distance

This subsection is similar to that of the Use reach distance subsection of the Cross Sections Renumbering panel. Hence, refer to the first subsection of the Cross Sections Renumbering panel to learn more about it.

Use Auto Increment

The Use auto increment subsection is used to number the reach using a fixed increment. The following options are provided.

  • Reach ID digits: This option permits specification of a set number of digits to use for reach ID. For example, using 3 digits causes the reach ID to be of the format 001, 002, etc.
  • Next available Reach ID: This entry defines the next element ID number to be used.
  • Reach ID increment: This entry defines the increment to use when numbering elements. The default value is 1.

Previewing Reach ID

Clicking on the [Preview] button causes the software to fill the reach IDs in the New Reach ID column of the Manual Editing data grid.
Preview of reach ID

Junction Renumbering

This panel allows the user to number the junctions based upon river chainage or incrementally. By default, the Junction Renumbering checkbox panel is checked. If the panel checkbox is unchecked, then the content of this panel will be disabled and the junction will not be renumbered.
Junction Renumbering checkbox panel

Junction Stationing

This section is used to define the river stationing to be used for the constructed junctions.

The following options are provided in the data panel:

  • Junction ID prefix: This option allows a prefix to be added to the start of the junction ID.
  • Junction ID suffix: This option allows a suffix to be added to the end of the junction ID.
  • Junction ID preview: This entry provides a preview of the junction naming specifications defined above.
  • Numbering direction: This dropdown combo box defines the direction that the junction IDs are increasing. The following options are available:
    1. Increasing Downstream
    2. Increasing Upstream (HEC-RAS style) (default)
      Based on the option selected, the content of the Use reach distance radio button subsection will be changed.

Use Reach Distance

This subsection is similar to that of the Use reach distance subsection of the Cross Sections Renumbering panel. Hence, refer to the first subsection of the Cross Sections Renumbering panel to learn more about it.

Use Auto Increment

The Use auto increment subsection is used to number the junction using a fixed increment. The following options are provided:

  • Junction ID digits: This option permits specification of a set number of digits to use for junction ID. For example, using 3 digits causes the junction ID to be of the format 001, 002, etc.
  • Next available Junction ID: This entry defines the next element ID number to be used.
  • Junction ID increment: This entry defines the increment to use when numbering elements. The default value is 1.

Previewing Junction ID

Clicking on the [Preview] button causes the software to fill the junction IDs in the New Junction ID column of the Manual Editing data grid.
Preview of Junction ID

Renumbering Cross Sections, Reaches, and Junctions

When the data has been defined in the Renumber Cross Sections dialog box, click the [Apply] button.
[Apply] button

The software will then renumber the IDs of the cross sections, reaches, and junctions along a defined flow path.

About the Author Chris Maeder

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