Autodesk 00128-051462-9310 - AUTOCAD 2008 COMM UPG FRM 2005 DVD, User Manual

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Working With Elevations
You can create elevations of the building models in your drawings by first drawing an elevation line and mark, and
then creating a 2D or 3D elevation based on that line. You can control the size and shape of any elevation that you
create, and you can update an existing elevation when the objects included in the elevation are modified. 2D elevations
are created with hidden and overlapping lines removed. You can control the appearance of 2D elevations by applying
rules that are controlled by the style and display properties of the 2D elevation.
Elevation Line and Marks
The elevation line defines the extents of the elevation view of your building model. Elevation lines can be straight or
jogged. You can also specify the length and the height of the area defined by the elevation line. Elevation marks, which
typically contain a letter or number and indicate the direction of the elevation, appear at each end of the elevation
line.
After you draw the elevation line, you create an elevation object from the line.
Viewing the elevation line and mark
2D Elevations
2D elevations are created by drawing an elevation line in front of a number of objects and then creating a 2D elevation
object from them. The elevation object is drawn without hidden and overlapping lines. You can edit a 2D elevation
by changing its object display properties or its style display properties. The 2D elevation style lets you add display
components to the display representation of the elevation and create rules that assign different parts of the elevation
to different display components. You can control the visibility, layer, color, linetype, lineweight, and linetype scale of
each component. You can also assign a material, such as a brick or concrete hatch, to individual components of the
object or the style. Furthermore, you can use linework editing commands to assign individual lines in a 2D elevation
to different display components, and merge geometry into a 2D elevation. You can dimension 2D elevations.
2D building elevation
3D Elevations
3D elevations are created by drawing an elevation line in front of a number of objects and then creating a 3D isometric
elevation object from them. 3D elevations do not use styles. However, you can control the display of subdivisions
within 3D elevations. Using the Hidden Line Projection command, you can create 2D hidden line projections of any
1806 | Chapter 38 Elevations