Ellipse by Selecting Three Points (3D)

General

  • An ellipse is sketched by first clicking the main axis points and then clicking the radius point.
  • No automatic coincidence constraints are generated for the ellipse during the sketching phase, even if you click the points of the ellipse from lines or their endpoints.
  • You can enter the length of the main axis of the ellipse, and if you lock the cursor in a direction perpendicular to the main axis, you can enter the second radius of the ellipse, in which case the program adds two radius constraints to the ellipse.
  • You can dimension an ellipse with two radius constraints.

Sketch an ellipse

  1. Select Sketch | Lines | Ellipse or
    • select the context-sensitive function Circle > Ellipse.
  2. If necessary, select the line properties, under Sketch | Style
  3. Click the first point on the ellipse ring.
  4. Click the second point from the first main axes.
  5. Click the third point from the ellipse ring.
  6. Repeat steps 2 to 5 to continue sketching ellipses.
  7. Stop sketching circles
    • Select another function or
    • Press the middle mouse button or
    • Press the Esc key or
    • Press the V key (V = Confirm).

Example

  • 1: The first point of the ellipse is clicked.
  • 2: The relative coordinate of the second point (50) is entered from the keyboard.
  • 3: The cursor is locked from the center of the ellipse in a vertical direction (along the Y axis of the sketch).
  • Distance 10 is entered.