The General Preferences section of the Options backstage page allows the user to configure default settings at both the project and application levels. These settings are described in the following sections:
- Project Options – General Preferences
- Application Options – General Preferences
Project Options – General Preferences
The General Preferences section under the Project Options allows the user to control project-level settings. The changes made within this section apply only to the current project and are automatically updated when the project settings are modified.
The following sections describe the General Preferences section for each CivilGEO software.
GeoHECHMS
The options available in the General Preferences section of GeoHECHMS are as follows:
- Project data units
This dropdown combo box allows the user to set the data units used in the project. Available options are US Units and Metric (SI) Units. To learn how to set model units, refer to this article in our knowledge base.
- Drainage area units
This dropdown combo box allows the user to set the units for the subbasin’s drainage area. The following options are available:
- US Units – Acres, Feet2, Miles2
- Metric (SI) Units – Hectares, Kilometers2, Meters2
- Drainage length units
This dropdown combo box allows the user to set the units for the length used in drainage elements (e.g., pipes, storage areas, etc.). The following options are available:
- US Units – Feet, Miles
- Metric (SI) Units – Kilometers, Meters
- TOC/Lag Time units
This dropdown combo box allows the user to set the time units used for TOC/Lag Time values. The following options are available:
- US Units – Hours, Minutes
- Metric (SI) Units – Hours, Minutes
- SCS hydrograph peaking factor
This dropdown combo box allows the user to select the peaking factor, which controls the volume of water on the rising and recession limbs. By default, the Standard (PRF=484) option is selected. Refer to this article in our knowledge base to learn more about the hydrograph peaking factor.
- Pipe dimensional units
This dropdown combo box allows the user to set the units of the pipe dimensions. The following options are available:
- US Units – Inches, Feet
- Metric (SI) Units – Meters, mm, cm
- Precipitation units
This dropdown combo box allows the user to set the measurement units for rainfall or precipitation data. The following options are available:
- US Units – Inches
- Metric (SI) Units – mm
- Output volume units
This dropdown combo box allows the user to set the units for displaying output runoff volumes. The following options are available:
- US Units – ac-ft, ac-in, ft3
- Metric (SI) Units – 1000m3, m3
GeoHECRAS
The options available in the General Preferences section of GeoHECRAS are as follows:
- Project data units
This dropdown combo box allows the user to set the data units either in US or Metric (SI) units. To learn how to set model units, refer to this article in our knowledge base.
- Minimum distance between 2D flow area nodes
This spin control checkbox option allows the user to define the minimum distance between 2D flow area nodes. By default, this checkbox is checked. To learn more about 2D flow area nodes, refer to this article in our knowledge base.
GeoSTORM
The options available in the General Preferences section of GeoSTORM under Project Options are similar to those in GeoHECHMS, as explained above in this article, with the following additional options:
- Storage area units
This dropdown combo box allows the user to set the units for the storage area. The following options are available:
- US Units – Acres, Feet2, Miles2
- Metric (SI) Units – Hectares, Kilometers2, Meters2
- Flow units
This dropdown combo box allows the user to set the units used to represent flow rates throughout the model, including inflow, outflow, and discharge through structures. The following options are available:
- US Units – cfs
- Metric (SI) Units – itr/sec, m3/s
- Standard pipe dimensions
This option allows the user to define the standard pipe dimensions to be provided in the Pipe Data dialog box. Clicking the [Define] button displays the Define Standard Pipe Dimensions dialog box that allows the user to define additional pipe diameters. Refer to this article in our knowledge base to learn more about the Pipe Data command.
- Catch basin inlet type
This option allows the user to select the type of catch basin structure that is being defined along the roadway segment. Clicking the [Select] button displays the Select Catch Basin Inlet Type dialog box, which allows the user to select an additional catch basin inlet type.
- Storage chamber manufacturer
This option allows the user to select the storage chamber manufacturer that the software supports. Clicking the [Select] button displays the Select Storage Chamber Manufacturer dialog box that allows the user to select additional storage chamber manufacturers. Refer to this article in our knowledge base to learn more about storage chamber manufacturers.
- Subbasin – TOC/Lag Time Method
This dropdown combo box allows the user to select the TOC/Lag time method to use. The following options are available: FAA TOC, SCS TR-55 TOC, and SCS Watershed Lag TOC. Refer to this article in our knowledge base to learn more about these methods.
- Use acre-in/hr to cfs conversion factor for Rational Method
This checkbox option allows the user to enable or disable the use of the 1.0083333208097 conversion factor in the Rational Method peak flow computation (i.e., Q = CIA). By default, this checkbox is checked.
- Compute pipe interval WSEL profile during analysis
This checkbox option allows the user to enable or disable the computation of the pipe interval water surface elevation (WSEL) profile while running the analysis. By default, this checkbox is checked.
Application Options – General Preferences
The General Preferences section under the Application Options allows the user to control application-level settings. The changes made within this section change the overall settings of the project at the application level. These changes will always be applied by default to the project when it is prepared.
The following sections describe the General Preferences section for each CivilGEO software.
GeoHECHMS
The options available in the General Preferences section of GeoHECHMS are as follows:
- Application data units
This dropdown combo box allows the user to set the application data units either in US or metric units.
- Default local file location
This read-only field displays the default local file locations. Clicking the adjacent [Browse] button allows the user to modify the folder location to save the files.
- Default CRS
This read-only field displays information of the default project CRS applied by the user. Clicking the adjacent [Assign Current CRS] button assigns the current project’s CRS as the default. Clicking the [Remove CRS] button removes the applied CRS. Refer to this article in our knowledge base to learn more about the coordinate reference system (CRS).
- Company logo
This read-only field displays the name of the company logo. Clicking the […] button displays the Select Company Logo dialog box that allows the user to select the company logo file.
- Define Keyboard Shortcuts
Clicking the [Define Keyboard Shortcuts] button displays the Keyboard Shortcuts dialog box, where the user can edit or assign keyboard shortcuts for any command. Refer to this article in our knowledge base to learn more about the customization of keyboard shortcuts.
GeoHECRAS
The options available in the General Preferences section of GeoHECRAS under Application Options are similar to those in GeoHECHMS, as explained above in this article.
GeoSTORM
The options available in the General Preferences section of GeoSTORM under Application Options are similar to those in GeoHECHMS, as explained above in this article.
In addition, GeoSTORM provides additional options shown in the red rectangular box, which are similar to the General Preferences section of GeoSTORM under Project Options. Accordingly, refer to the General Preferences section of GeoSTORM under Project Options part of this article to learn more about them.