Circle from diameter

Circle from diameter defines a circle from two points. The distance between the two points specifies the circle's diameter. The midpoint between the two points becomes the circle center. To create this circle:

  1. Select Construct tab > Geometry panel > Circle > Diameter to enter the circle-creation mode.
  2. Pick or type the first point.
  3. Pick or type the second point. If you drag the mouse when locating the second point, the circle changes interactively as you drag.
  4. When you have finished creating circles, exit circle mode.