To List Inverse Information for a Survey Figure

Use the Inverse command to display the inverse information which includes the length, course, perimeter, area, closure error, and precision information for a given figure.

Closure, perimeter, precision, and area values are calculated using the exact XY coordinate data of each figure vertex.

Notes About Inverse Information

The Inverse report starts at the beginning of the figure. For each segment, the inverse report 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.

Tutorial Exercise: Viewing Inverse and Mapcheck Information

To display Inverse (exact closure) information using Toolspace

To calculate the mathematical closure of a figure using the Survey Command Window

  1. In Toolspace, on the Survey tab, right-click a named network Survey Command Window.
  2. At the Command line, enter:

    INVERSE FIGURE [figure]

Command Line Example

The following is a typical report generated by the Inverse command:

Figure Name: WALL
North: 5000.000              East: 5000.000
Line   Length: 431.47               Course: 355-00-19
North: 5429.830              East: 4962.435
Line   Length: 265.59               Course: 43-52-25
Line   Length: 609.71               Course: 93-31-48
North: 5583.743              East: 5755.061
Line   Length: 954.40               Course: 232-17-32
North: 5000.000              East: 5000.000
Perimeter: 2261.16
Area: 234948.16                        5.39 acres
Mathematical Closure - (Uses Survey Units)
Error Closure: 0.000                Course: 0-00-00
Error Closure: 0.000                Course: 0-00-00
Precision 1: 2261164601.60

Command Syntax

INVERSE FIGURE [figure]

Command Synonym

INV FIG

Parameter Definition
figure The name of the figure you want to inverse.