Part 13 - Build a Teacup - continued.
Switch the main mode from "Select" to "Transform". This mode allows selected entities to be translated, scaled, or rotated in relation to other entities. Leave the mode set to "Translate". Click and drag the left mouse button to move the circle. Click on "Reset" to clear the entity transformation (and send the entity back where it started). Change the mode from "Translate" to "Rotate". Click the left mouse button in the center of the circle and drag the mouse up and down and side to side. This rotates the circle in 3D, with the center of the rotation about the first point that was clicked (near the center of the circle). Click on "Reset" to remove the rotations. Click on the "Vector..." button. The Rotate dialog will appear. For the rotation axis, enter 0,1,0 (a rotation axis parallel to the Y axis). For the Rotation (center) Point, enter 3,-0.75,0 (the center of the circle). For the Rotation Angle, enter 90. Click on "Ok". The circle is now rotated 90 degrees about the Y axis, so that it is seen "on edge" in the current view.

Switch the main mode from "Transform" to "Surface". Set the surface Type to "Revolution". Click on the "Geometry..." button. The Revolution surface dialog appears. Since the circle was selected when you clicked on the "Geometry..." button, the geometry (data points) from the circle are automatically fed into the list of points for the revolution surface. So the circle defines the shape of the perimeter that you will rotate to sweep out a surface. For the Revolution Point (rotation center) enter 3.5,0.7,0. For the Revolution axis, enter 0,0,1 (the Z axis). For the min/max Revolution Angle, enter -20,208. The "Perimeter" setting controls whether the perimeter is closed before it is swept. Since this is a circle, it is already closed, so this setting has no effect in this case. The "Revolution Steps" setting controls how many facets appear on the curved surface. The higher the number, the "smoother" the surface (and the more computer memory necessary). Leave this set to the default (64). Click on "Ok". The new surface of revolution is drawn as a shaded black arc. Note that the original circle is still selected. Switch the main mode from "Surface" to "Edit". Click on the "Delete" button. The selected entity (the circle) is deleted. Switch the main mode to "Select". Click on the spline curve to select it. Switch the main mode back to "Surface". Click on "Geometry...". The Revolution Surface dialog appears. For the Revolution Point, enter 0,0,0. Enter a Revolution Axis of 0,-1,0. Leave all the other settings as is. Click on "Ok". The main body of the cup is drawn. Switch the main mode to "Edit" and click on "Delete" to delete the spline curve. Switch the main mode to "View". Set the View mode to "Rotate". Click and drag the left mouse button on the view to rotate the view up-down and side-to-side. Switch the main mode to "Select". Click the left mouse button on the handle to select it. Click the RIGHT mouse button on the body to add it to the selected list. You could also accomplish the same thing by clicking on the "Select All" button. Switch the main mode to "Edit". Select "Color..." from the "Attributes" drop-down menu. Select "Blue"and click on "Ok". Switch the main mode to "View" and rotate the view some more.

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Guided Tour - Page 25