Make Design Surface
Function
This command makes the triangulation models for the design
surface. There are three surfaces that are created: initial design,
design after applying subgrade zones, and design after subgrade zones
and topsoil replacement. These surface files
are automatically named as "filename-bs.tin", "filename-zn.tin" and
"filename-fn.tin" respectively. The "filename" is set to the name of
the current drawing (dwg) file. Also, the file extension will be .tin
for the binary format triangultion and .flt for the ASCII format
triangulation. This file format is set in Configure->Takeoff. The
subgrade zones are defined in the Define Layer
Target/Material/Subgrade command. If there aren't any subgrade zones
for the Design surface, then the design after subgrades surface with
be the same as the initial design surface. The topsoil replacement
depths
and areas are set with the commands in the Topsoil Removal/Replacement
sub-menu. The topsoil replacement areas will lower the design surface
by
the topsoil depth to leave room for the topsoil replacement. If there
aren't any topsoil replacement areas, then the design after subgrade
and topsoil surface will be the same as
the design after subgrade surface.
Before running this command, the layer names for the entities on the
Design layer target must be set in the Define Layer
Target/Material/Subgrade command. Also these entities must be at their
proper elevations. The entity elevations can be reviewed using commands
from the Inquiry menu and the elevations can be assigned if needed
using command from the Elevate menu. Another prerequisite is that the
Boundary Polyline must be set for the site.
When the program finds errors in the existing entities, a Data Error
Log dialog reports these errors. Refer to the Make Existing Surface
command for more information on the Data Error Log dialog.
Keyboard Command: mk_final_tin
Prerequisite: a boundary polyline and elevated entities on the
Existing layer target