Menu: View->Rotate
Mouse menu: Rotate
Toolbar: 
There are various ways to rotate the image in order to view it from different angles. This does not affect the geometry.
Note: Instead of picking twice to begin and end the rotation, hold down the left mouse button and move the cursor.
View Menu>Rotate>Trackball
With this option you can rotate the image as if using a trackball device. This means that when you left-click on a point and move the mouse, the geometric point tries to follow the mouse pointer. This can be imagined as a ball over the graphical window which is moved with the mouse.
The left mouse button can be pressed several times to engage and disengage the movement. To cancel this function, use escape (see Escape).
View Menu>Rotate>Screen axes
This option allows a dynamic rotation about the screen axes. Screen axes are defined as:
- X-axis: The horizontal axis.
- Y-axis: The vertical axis.
- Z-axis: The axis at a right angle to the screen.
When entering this command, Z-axis is set by default and moving the mouse to the left or to the right will rotate the geometry around this axis. Clicking the left mouse button changes the axis. To cancel this function, use escape (see Escape).
Can be changed the axis about which the image in rotated by entering the letters x, y or z in the command line.
To move the geometry by a fixed angle, enter the number of degrees, positive or negative, in the command line.
View Menu>Rotate>Object axes
This option allows a dynamic rotation of the object about its own axes. These are displayed in the bottom left-hand corner of the screen.
When entering this command, Z-axis is set by default and moving the mouse to the left or to the right will rotate the geometry around this axis. Clicking the left mouse button changes the axes. To cancel this function, use escape (see Escape).
Can be changed the axis about which the image in rotated by entering the letters x, y or z in the command line.
To move the geometry by a fixed angle, enter the number of degrees, positive or negative, in the command line.
View Menu>Rotate>Center
The default center of rotation is defined as a point approximately in the center of the geometry.
If you wish to change this center point, use this command to enter a point (see Point definition ). This new centre of rotation will be maintained until the next zoom frame (see Zoom ).
In the Contextual mouse menu (the menu which appears when you right-click over the graphical window) the option 'Automatic rotation center' / 'No automatic rotation center' is listed. If this option is active, for each 'Zoom In' / 'Zoom Out' / 'Pan' the point of the geometry or mesh nearest to the center of the screen will be selected as the center of rotation for subsequent rotations. This variable is also present in the Right buttons menu under Utilities -> Variables.
If a new Rotation center is selected, this option is deactivated.
View Menu>Rotate>Plane XY (Original)
This option changes the view to the original one, i.e. with the screen at a right angle to the Z-axis and with the X-axis lying horizontally and pointing to the right.
View Menu>Rotate>Plane XZ
This option changes the view so that the screen is at a right angle to the Y-axis with the X-axis lying horizontally and pointing to the right.
View Menu>Rotate>Plane YZ
This option changes the view so that the screen is at a right angle to the X-axis with the Y-axis lying horizontally and pointing to the right.
View Menu>Rotate>Isometric
This option changes the view to isometric one, i.e. with the screen at the viewing direction that the angles between the projection of the x, y, and z axes are all the same.