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If you understand Grids, you have the basics you need to work with Levels as well. Levels run parallel to the ground. You cannot see them in a plan view, so to edit them, open an elevation or section. Otherwise, they will have similar behaviors to grids: the same types of control points, locking and stretching behavior, etc.
Catch-up file completed to this point: 04_Medical Center_Levels.rvt
For now, we will adjust the height of the existing Level 2 and add two new levels for the roofs of the various portions of the building.
Figure 4–1 Edit the height of Level 2
You can add levels using techniques similar to adding grids. The level tool is on the Architecture tab, on the Datum panel. Its keyboard shortcut is ll. When you click points, they will attempt to align and lock to other levels just like grids do. You can also copy levels as we did with grids.
There is a difference in the result with these two methods. When you add a new level, the default behavior also gives you one or more floor plan views associated to the new levels. When you copy, you do not get plans automatically and must add them later if desired. So for this example we’ll go with adding levels and plans together using the Level tool.
Let’s add levels with the Level tool and introduce the “Pick” option.
The Pick Lines option allows you to create levels from the edges of other geometry already in your model, in this case, we will offset from the existing levels.
Figure 4–2 Run the Level tool and configure the settings
Figure 4–3 The Pick Lines option creates a new level offset above the one you click
Notice that the Level heads of the two new levels will change color to blue. This indicates that they have floor plans associated with them. Glance over at your Project Browser. Since we used the “Make Plan View” checkbox above, we now have a Level 3 and Level 4 floor plan on the Project Browser.
The level will move down. We can rename the levels the same way.
Figure 4–4 Move and rename the Level, answer yes to also rename the floor plan
When you enter the new name, Revit will ask you to confirm the renaming of the floor plan as well. If you want the names of the floor plans to also change, click Yes. If you want to leave the floor plan names unchanged, click No.
Take note of the new name on Project Browser as well (see Figure 4–5).
Figure 4–5 Rename both new levels and the corresponding floor plans on Project Browser follow suit
You are welcome to experiment more with the other controls on the levels. The checkboxes at either end hide and show the levels as they did with the grids. You can also stretch one level and the aligned and locked ones will follow. You may also want to adjust the height of the grids to make them go above the levels.
Figure 4–6 Edit the height of the grids to stretch them above the levels
If you open either the North or East elevations, you will notice that the change is not necessary here. This is because once you adjust the extents of the grid or level, like other elements in your model, the change will be visible everywhere.
Figure 4–7 Levels appear in 3D views. Grid do not
Notice that the levels appear here in our default 3D view. Grids however, do not. Despite their 3D visibility, you will usually find you gain more control over manipulating levels in elevation views instead.
Datum elements help you establish context in your project. Every model element you draw will be associated to a level or grid in your project. The best part is that later if you modify these datum elements, associated geometry will follow. We’ll see examples of this later.