Autodesk CIVIL3D - CIVILDESIGNCOMP 2007 SLM CD Tutorials Manual page 184

The Mapcheck command checks the figure for length, course, perimeter, area,
error of closure, and precision. It starts at the beginning of the figure and
computes the figure vertex XY coordinates for each segment. These
computations are based on the inverse direction and distance/curve data and
the Linear and Angle precision (set in the Survey Database Settings).
For closed figures, error is introduced into the sequential computation of
vertices of the mapcheck report, so a closure error, closure direction, and
precision can be calculated. The area is also based on the computed vertex XY
coordinates.
The Inverse command starts at the beginning of the figure and lists the
direction and distance, or curve data computed from the XY coordinates of
the endpoints of the figure segments. The area is calculated from the XY
coordinates of each segment.
For more information, see the AutoCAD Civil 3D Help topic Figure Inquiry
Commands.
This exercise continues from the
tutorial.
View inverse information for a figure
1 Open Survey-5A.dwg, which is located in the
819).
This drawing contains the survey network that was created in the
Importing Field-Coded Survey Data
2 In Toolspace, on the Survey tab, right-click the database Survey 1. Click
Open For Edit.
3 Under Survey 1, select the Figures collections.
NOTE If a
to refresh it and then click
4 Right-click the figure BLDG2. Click Display Inverse.
The figure inverse information is displayed in the Figure Display vista.
The
5 When you have finished reviewing the inverse data, click
vista.
172 | Chapter 6 Survey Tutorials
Manually Creating Survey Data
is displayed beside the Figures collection, click the collection
to view all the figures.
icon indicates that a vertex is associated with a survey point.
tutorial drawings folder
(page 136) exercise.
(page 155)
(page
to close the