- In the Infrastructure Administrator, click .
- On the navigation pane, click the Modules link and do the following:
- Under Extensions, optionally select one or more of the following data model extensions:
- COGO Extension—Adds the COGO feature classes. See also "Construction Introduction" in the User's Guide.
- Dimension Extension—Adds the default feature classes for orthogonal and aligned dimensioning. See also Data Model: Dimensioning.
- Templates Extension—Adds the template feature classes. See also Data Model: Feature Templates.
- Under Modules, select one mode or module, such as Wastewater Data Model, to create a predefined data structure.
When you select a module, the Infrastructure Administrator stores the data model code in the system table; creates the database schema, using the unit settings; and imports pre-configured forms. See also Overview of Data Models.
To create a custom data model, do not select any module.
- On the navigation pane, click the Units link and specify the settings used for calculations.
The Unit settings specify the default units for attributes when the industry model is created. For example, during the creation of a Wastewater module the WA_TANK.CAPACITY attribute (a volume) is created. Depending on the default settings, the corresponding unit can be cubic meters, gallons, or litres (among others). You can also define specific units for each attribute when you create it.
The default orientation is dependent on the angle unit. For examples, if you select Degree and Clockwise, the default orientation is 90. If you select Gon and Clockwise, the default orientation is 100
Note: You cannot modify these settings later. The settings are saved in the system table TB_INFO.
- On the navigation pane, click the Spatial link and specify the settings used for spatial storage and operations.
- Dimensions: Select 2D to store the plane geometry (easting, northing) in the GEOM attribute, and the elevation (height) in the Z attribute. Select 3D to enable 3D support, and to store the coordinates (easting, northing, and elevation) in the GEOM attribute.
- Tolerance: Defines the maximum precision for numeric data; the default value is 0.0005.
Note: Tolerance is important for accuracy of coordinates, and is critical for data processing performance and the size of spatial indices. For best results, set it to a consistent value between 0.01 and 0.005 for all tables in a schema. For example, a setting of 0.005 means that measurements in meters can be precise to 5 mm. The spatial tolerance value can be altered for a specific feature class.
- Min Northing, Min Easting, Max Northing, Max Easting: Defines the range of the spatial index. For faster performance, set these values close to the actual range of coordinates that is used.
- Spatial Reference ID: Assigns a coordinate system. Select a coordinate system from the drop-down list.
This parameter is important for later spatial operations, such as transformation into another system. All feature classes will inherit this coordinate system. See also About Coordinate Systems.
- Click OK.
If any critical fields are blank, the Create New Industry Model dialog box displays the tab with the missing data. A flashing exclamation point indicates the field you must complete.
Once all the fields are properly completed, the industry model is created. The basic structure is displayed in the Data Model administrator.
- To save your settings as an industry model template or drawing, click .
Use the Save As Type field to specify whether the settings are saved as a template or as a drawing. By default, industry model templates are saved in the Industry Templates folder.
Note: You can also save your settings as a SQLite Data Model, which might be useful for developers or those using custom applications.
To change settings in your template or drawing later, click .
Next workflow:
Determine Needed Feature Classes and Attributes