Create an area in the form of the minimum enclosing circle for each object.
In the illustration above we have created an enclosing circle for the province of Zacatecas in Mexico.
Enclosing circles are created as areas and are selected when they are created. We would normally move them to their own layer so that they can be formatted and placed where desired in the layer stack. If we would like to have enclosing circles as lines we can take the areas and use the Boundaries transform toolbar operator to create lines.
The Common Enclosing Circle transform operator is like Enclosing Circles, but creates one minimum enclosing circle for all objects in the scope.
In the example above the green areas were created with Enclosing Circles using the lines and the blue area was created with Common Enclosing Circle.
Many transforms automatically run a Normalize Topology transform before running to eliminate common errors that may affect correct operation. The Enclosing Circles transform operator does not normalize target objects before running.