Building in Four Dimensions! - Google SketchUp Workshop: Modeling, Visualizing, and Illustrating - page 105

We started off by creating a “classic” SketchUp model, all the time keeping in
mind that this was a 4D project. This means that we have to model more than
just the final result: temporary elements also needed to be modeled, like, for
example, bicycle parking spaces, as well as logistical elements (e.g., cranes),
excavations, demolitions, etc. The presence of these elements would vary
according to the project stage.

The SketchUp model can be organized any way you like in terms of layers,
groups, or components, although it is better to group objects before linking
them to the database and reviewing the visualization. Layers, too, can be a
great help in organizing and visualizing the individual phases of the project,
although, as stated, this organization has no bearing on the database functions.

As in a traditional SketchUp model, materials and textures were applied to
the various elements. It should be remembered that in a 4D visualization, the
colors change as the visualization progresses, according to a palette chosen by
the user. Each element, however, stores its original material in the database.

FiG 6.1 Alongside “classic”-modeled
entities, 4D modeling also contains
logistic and temporary elements, as
well as any necessary demolition work.

Stage 2: Creation of xD Objects with Start and Finish Date

Objective : To create xD Objects. Each xD Object designates one activity.
Data : Inserting tasks and activities at the same time as their start and fin-
ish dates. Defining the type of activity. All these data are entered manually
into xD Virtual Builder.
Tools : xD Objects in SketchUp.