Sunday, April 4, 2010

Introducing Revit Architecture 2010, BIM for Beginners: Chapter 3 - Working With Views

Introducing Revit Architecture 2010, BIM for Beginners
Chapter 3 ■ Views
- Working With Views (partial)

"Creating New Plan Views with Levels
...default plan view is referred to as a Level 1 view and is organized under Floor Plans in the Project Browser. A level typically represents one story in a building, but as you’ll see later, a level can also be used to reference the position or height of other elements..."

"Creating Levels
"To create a level using the Level tool, you have to be in section or elevation view."
...select the Level command from the Datum panel under the Home tab...draw a level using two mouse clicks to define the start point and endpoint...this will add a new
level and plan view to the model...note that the Level command is disabled
unless you’re actively in an elevation or section view."
"You can also create a level by copying an existing one. ...To create additional levels, open a section or elevation view; select the level line in the view; and, using the Copy command, copy the existing level, thus creating a new one.
...the copied level doesn’t automatically create a new view (you will see in the
Project Browser that no new plan has been added); it only gives you another level graphic in the project that shows in elevation or in section. ...useful when you need another benchmark in elevation to show heights or want to associate geometry to a level, but you don’t necessarily want to generate an associated plan view. A good example is the top of a parapet wall."

To change copied level to actual plan view, do the following:
"Adding a Plan View
...Go to View tab and under the Create panel, select Plan Views/Floor Plan. A dialog box opens that allows you to select a level and create a new floor plan based on that level. Check Do not duplicate existing views at the bottom of the dialog box. (This process is the same for ceiling plans.) The level symbol will then change to blue, indicating that it is a hyperlink to a plan view."


"Duplicating Views
...want to create a new view based on an existing floor plan? Say you already have a design plan of Level 1, but also need a presentation plan and a fully annotated plan for your documentation set. You can achieve this...by duplicating
views. ...right-click the view’s name in the Project Browser (Level 1 for
example), and choose Duplicate View from the context menu."

"three different ways to duplicate a view:
Duplicate - Makes a duplicated view in which only the model data of that view is copied. ...when you don’t wish to copy any tags, dimensions, or annotations from one view to the next. ...model is not copied — you’re just creating a duplicate view of the model without bringing along any 2D graphics.

Duplicate with Detailing - Makes a copy of the model data and any 2D information (such as text, dimensions, or keynotes) in the view. ...annotations and detailing that are added or edited in the original view after the duplication aren’t propagated
in the duplicated view. Only model-data modifications are propagated in the duplicated view. The copied annotations are not linked.

Duplicate as a Dependent - Not only creates a duplicate of all the model and drafting data, but also creates a dependency between the detailing information of the duplicate view and the original view. When this type of duplication is used, changes of both model (3D) and drafting (2D) elements in the original view will propagate in the duplicate view. A use case for this type of duplication would be a project with a big floor plate that you need to split into separate segments for printing."

NOTE: "Dependent views created with the third method (Duplicate as a Dependent) must always remain in the same scale as the original."


"Types of Views
Plans
Callouts (Enlarged Plan View)"

"Plans - ...To control how the plan is represented, a view range is defined."
View range settings control what you see beyond the cut plane. This applies only to floor and ceiling plans.
"View Range options ...influences the visibility and appearance of the elements in the plan or ceiling views of the project. To access ...right-click in the drawing area and choose View Properties, Edit (under Extents), View Range."

"The following list describes the Primary Range features in the View Range dialog box:
Top plane ...defines the uppermost plane above the cut plane up to which
elements will be considered. If an element is above the cut plane but still in the primary range (partially or fully), the element is visible in the plan view as if it were seen from below the element."

Cut plane ...defines the height at which the 3D elements of the model are physically cut."

"Bottom plane ...is coincident with the view depth plane, but it doesn’t have to be. If an element is below the cut plane and is wholly in the primary range, it’s still shown. Note that only a few Revit elements are considered here: windows, furniture
systems, and generic models."

"View depth ...defines the extent to which you want to view what is below the
cut plane."

"some Revit families are never cut. ...choose the Manage tab and click Project Settings, Settings, Object Styles. ...some elements are grayed out in the Cut column. These objects...are not affected by a change of cut height."

"Floor plans ...horizontal slices through the building and are associated with
levels. These views typically cut the model at 4′ (1.2 m) above the level line."

"Ceiling plans ...behave in a similar fashion to floor plans..."

"Site plans ...by default are at 1″-20′ (1:250) scale and are views from above your
model. The site plan typically shows the physical and topographic features of the model and doesn’t show certain annotations that normally would not appear at scales greater than 1⁄16″-1′ 0″ (1:200)."

"Area plans ...can be used for gross area, rentable, or Building Owners and
Managers Association (BOMA) area calculations, to name a few. To create one of these
types of plans, click the Home tab and under the Room and Area panel select Area and then Area Plan. Area plans are most effective when you have areas that span multiple rooms."

"Callout ...detail view that can be placed in plan, section, or elevation views. ...if you have a plan view...and you want to create another plan view that represents
only part...at a larger scale to show more detail, you use this command.
Callouts...show a larger-scale cutout of a view...dependent on the parent view from which it was placed. ...if the parent view is deleted, any callout view or views dependent on that parent view will also be deleted. ...two possible types of callout views for floor plans (as shown in the Type Selector when you select the Callout tool): Floor Plan and Detail View. ...the new callout will show up in the Project Browser..."

How to create a callout
(From Revit Help file)
1. In a project, click View tab, Create panel, Callout.
2. Click Callout tab, Element panel, and from the Type Selector, select the type of callout to create: a detail callout or a view callout (a callout view that has the same view type as the parent view).
3. On the Options Bar, for Scale, select a scale for the callout view.
4. To define the callout area, drag the cursor from the upper-left to the lower-right, creating a callout bubble as shown by the dashed line enclosing the upper-left corner of the grid.
5. To see the callout view, double-click the callout head to view


(see next post for continuation)

time log:
4.4.10 9:00-9:19am 19mins
4.6.10 7:40-8:10pm 30mins
4.8.10 8:40-9:40pm 60mins

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