Graphics Programs Reference
In-Depth Information
Orthographic views will always show parallel edges along Cartesian x-, y-, and z-axes.
Orthographic views are best if you need to show model information to scale. A lot of people
don't realize that it's possible to dimension and detail in Revit software from a 3D orthographic
view. For a more thorough explanation of annotating a 3D view, refer to Chapter 20, “Presenting
You r D e sig n.”
Create camera views by placing the start and end points of a camera (typically from a plan
view). The first point you select in plan is the point from which the view will be taken, but the
second point is also the rotation origin for the view (Figure 2.57). This is important because if
you select a second point that is far beyond your view, when you open the view and attempt
to modify it, it will rotate around a target that doesn't seem to make sense. That's because the
target location of the view is off in the distance.
Figure 2.57
setting camera and
target origins
A perspective view will not be to scale, but it can be made relatively larger or smaller by
selecting the view's crop region and then selecting the Size Crop button from the Modify |
Camera tab. Once you do this, you'll have the option to change the view size and field of view,
proportionally or not proportionally (Figure 2.58). You can also simply drag the nodes of the
bounding box.
Camera extents are defined by the Far Clip Offset option, accessed in the Properties palette
for the view. If the Far Clip Offset is too low, the view may resemble the image shown in
Figure 2.59. Geometry that you'd expect to see will be “clipped” in the view.
Simply increase the Far Clip Offset value to show more of the model. You may also do this
graphically by returning to a plan view, right-clicking the camera view in the Project Browser,
and then selecting Show Camera. Once the camera is shown in your plan view, you can select
the node at the far end of your clipping plane and manually drag the node to extend the far clip
offset of your view in a similar manner to that shown in Figure 2.58.
