Defines the settings for the elevation planes that you want to place in the model. You can also modify the Elevation Plane Locations options after creating a coordinate system.
Elevation Plane Settings
You cannot use the Grid Wizard to modify these options after initial placement.
Reference CS
Select the coordinate system to reference for the location of the Start Plane. The name of the coordinate system set in the Create Coordinate System dialog box of the Grid Wizard displays by default.
Start plane
Specify the location of the first elevation plane. The location is relative to the Up (Z) coordinate in the coordinate system that you specified in the Reference CS box. If elevation planes already exist, you can select one from the list. The Start plane list allows you to type the text for plane name along with the location information. For example, you can do the following:
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Specify the plane position as 20.00 m
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Type the text for plane name as 'ElevPlane1'
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Type the text for plane name along with the plane position as 'ElevPlane1' + 20.00 m
Copies
Type the number of elevation plane copies to create.
Spacing
Type the spacing between the elevation planes. Be sure to include the units when defining the spacing; for example, ft or m.
End plane
Displays the location of the last elevation plane. You cannot edit this value.
Name rule
Select the Grids Naming Rules that you want to use to name the elevation planes that you are creating.
Nesting level
Defines the nesting level for the elevation plane. You can select Primary, Secondary, or Tertiary. Between two adjacent planes, a difference of only one level is allowed. Therefore, secondary planes are only allowed between two primary planes. Similarly, tertiary planes are only allowed between two secondary planes.
Type
Select the type of elevation plane to place. Examples of grids elevation plane types are as follows: Bottom of Base Plate, Bottom of Concrete, Top of Steel, Top of Concrete, Grade Elevation, and Column Splice Elevation. You can define elevation plane types in the reference data.
Add
Adds the defined elevation plane settings to the Elevation Plane Locations list.
Elevation Plane Locations
If you are editing an existing coordinate system, the Elevation Plane Locations grid displays existing elevation planes in blue and new elevation planes in black.
Location
Displays the location of the elevation plane relative to its parent coordinate system.
Type
Specifies the type of elevation plane. You can change the elevation plane type if needed.
Name
Displays the name of the elevation plane. You can select and edit the text in the box if needed.
Nesting level
Defines the nesting level for the elevation plane. You can select Primary, Secondary, or Tertiary. Between two adjacent elevation planes, a difference of only one level is allowed. Therefore, secondary elevation planes are only allowed between two primary elevation planes. Similarly, tertiary elevation planes are only allowed between two secondary elevation planes.
Global Location
Displays the location of the elevation plane relative to the global coordinate system.
Spacing
Specifies the spacing between planes for a project to monitor the relative location of these planes. The first plane is always set to 0.00. For each subsequent plane, the Spacing value is its relative distance from the previous plane. This is a read-only value when creating a new coordinate system but can be modified in an existing coordinate system.
If you edit the Spacing value of an existing plane, the plane shifts to the new location as required. In addition, the remaining planes along that axis will also re-locate relative to the new location of the edited plane to maintain their existing Spacing values.
Delete
Deletes the selected elevation plane from the list of planes to be created. You cannot delete elevation planes that have already been placed in the model using the Grid Wizard.