Cone

Insert Primitives Cone

The Cone command enables you to create a cone.

Obtaining a parametric solid or a set of surfaces
The final result of the command can be either the set of three surfaces composing the cone or a unique parametric solid cone. The Associative Mode check box enables you to control the result:

When the box is checked, the resulting entity will be a parametric solid. A drive dimension will be associated with the radius of the base of the cone and another one with the cone height. Depending on the construction method, if a truncation has been set, a drive dimension will be associated with the radius of the minor base of the cone or with the vertex angle, while, if the truncation is set through the taper ratio, the latter can be redefined using the Redefine Feature command. The icon of a solid will be displayed in the Model Structure.
When the box is cleared, the final result will be the surfaces composing the shape.

For further details, see "Associative surfaces".

To start the creation, you will have to specify a point to be used for the placement of the cone.

The positioning method can be chosen in the Point drop-down list:

Base center	The point you specify will be the center of the cone base.
Center of mass	The point you specify will be the center of mass of the cone.

When the placement point is specified, a set of handles is displayed. At any time during the creation of the cone, you can:

Change the position of the placement point just by clicking in a different position.

Change the orientation of the cone. The three arcs represent the three angles of rotation (about each of the three orthogonal directions). You can rotate the cone about an axis by dragging the corresponding arc or by typing the value of the rotation into the Angle box which shows up when you pick the arc or also by using the X Axis, Y Axis, Z Axis drop-down lists under Axis Alignment:

Line	to align the axis to a line. Select the line.
2 points	to align the axis to the direction identified by the two points. Select the two points.
End point	to align the axis so that its second endpoint coincides with a point. Select the point.

You will have to define the length of the Radius and the Height of the cone. You can either type the values into the corresponding mini-dialog boxes, or define them interactively by dragging the corresponding handle.

In the Truncate by drop-down list, activated by selecting the adjacent check box, you can choose the method to be used to apply a truncation to the cone you are creating.

Minor radius	To truncate the cone by specifying the value of the second base radius. A Minor Radius mini-dialog box is displayed. Type in an appropriate value or define it interactively by dragging the corresponding handle.
Vertex angle	To truncate the cone by defining its vertex angle (given the cone height, the angle formed by the axis of the cone and by its generatrix). A Vertex Angle mini-dialog box is displayed. Type in an appropriate value or define it interactively by dragging the corresponding handle.
Taper ratio	To truncate the cone by defining the tangent of the vertex angle (which is also the ratio between the difference major radius/minor radius and the height). Type the appropriate value in the Taper Ratio box.

A dynamic preview of the cone is displayed since the very moment you specify the placement point, so as to enable you to immediately assess the result of your actions.

Try to ...

Create a parametric cone