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Introduction

The construction of outer limits is (obviously) a complex operation. Sometimes it is best to do this area by area and in multiple steps, then combining points into one or more final outer limits. Sometimes the outer limit line may be constructed from a combined formula line and a combined constraint line.

The ultimate construction may still be a complex logical and strategical operation. The Geocap Final Outer Limit tool is designed to digitize to combine line segments and keep distances between points less than 60M.

Exercises

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About the Outer Limit Menu

The "Outer Limit Menu" is used in order to select the final outer limit points from the formula and constraint lines. You may open the outer limit menu by right-clicking on the project folder 4. Outer limit and selecting Generate Outer Limit.

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Try the Outer Limit tool

Before doing the exercise below, get a hand on feeling with the functionality of the digitizer, just by playing around with two datasets.

  • Copy the 200M line into 4. Outer limit / Formulae
  • Copy your 2500m + 100M into 4. Outer limit / Constraints
  • Display the data from the Final Outer Limits panel. Note that the data may also be displayed from the project, e.g. Display Points.
  • Try the various digitizing operations.
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Generate the Outer Limit

In this exercise we are going to digitize the outer limit from your formula, and constraint lines using the Outer Limit menu.

  1. Copy all your formula lines to the 4. Outer limit / Formulae folder (200M, FOS+60, Sed>1% points)
  2. Copy all your constraint lines to the 4. Outer limit / Constraints folder (350M, 2500m + 100M)
  3. Open the Outer limit menu, and check some of the datasets and use the Display and scale buttons

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