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Chapter 4 - How Do I?
Stacking 3D Objects
Any objects in the program (like symbols, bodies, walls, lines, curves and
circles) can be given 3D values for elevation and height. The height value
determines the height to which the object is extruded in 3D space and the
elevation determines if the object is placed above or below the ground plane.
For example, an object with an elevation of 4' will be placed 4' above the
ground plane. You can use the height and elevation values to make one 3D
object sit on top of another 3D object. This is known as “stacking.”
In the examples below we will show how you can use stacking to get the 3D
results you want. For example, by default a body has an elevation of 0, which
places it on the ground or floor. If you select that same body and use the 3D
Builder toolbox to give it an elevation of 2', the body can now be shown lying
on top of a bed. A section of building can be stacked on top of another section
of building. A skybridge between two buildings is created by extruding the
walls of the bridge and elevating the entire bridge to the required height. To
create an archway or bridge, use the elevation values to stack one block on
top of two supporting blocks. Stacking is even used to create windows by
stacking an opening, or hole, on top of a section of wall, then elevating
another section of wall on top of the opening.
Using 3D Linetypes
Many custom line types in the Diagram Program convert automatically in the
3D Viewer to 3D objects. The illustration below shows some of the line types
that convert to 3D entities. Other custom line types will be displayed in the
3D Viewer just as they are in 2D. For example, footprints and skidmarks will
still be displayed as flat, 2D objects.
Some of the custom line types that convert to 3D objects are:
• cyclone fence (10' tall) • concrete wall (4' tall) • barbed-wire fence (4' tall)
• power poles
• guardrails
• highway dividers
• cones
• barrels
• concertina (razor) wire
• car1 line type
• car2 line type
• motorcycle line type.
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Figure 4.1 - Custom Linetypes that convert to 3D