Pyramid

Insert Primitives Pyramid

The Pyramid command enables you to create a pyramid (a geometric shape formed by connecting a polygonal base and a point called the apex, by triangular faces).

Obtaining a parametric solid or a set of surfaces
The final result of the command can be either the set of surfaces composing the pyramid or a unique parametric solid pyramid. 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 length of the pyramid edge or with the radius of the circle circumscribed to the base (depending on how you created the pyramid) and with that of the pyramid height. The number of edges can also be changed 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 set of 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 pyramid.

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

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

In the Edges box, you can define the number of sides of the base polygon.

Choose the creation method for the base polygon in the Base By drop-down list:

Radius	The base polygon will be the one with the number of edges defined as described above and inscribed in a circle which you will define the Radius of.
Edge length	The base polygon will be the one with the number of edges defined as described above and with an edge length to be defined (Edge Length).

As soon as the placement point is specified, a set of handles is displayed. At any time during the creation of the pyramid, you can:

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

Change the orientation of the pyramid. The three arcs represent the three angles of rotation (about each of the three orthogonal directions). You can rotate the pyramid 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.

Finally, depending on your Base By choice, you will have to define the Radius of the circle circumscribed to the base polygon or the Edge Length pyramid Height. You can either type the values into the said mini-dialog boxes, or define them interactively by dragging the corresponding handles.

A dynamic preview of the pyramid 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 pyramid