## View

It operates the viewpoint on 3D screen.

You can reset a view by View header > [Disp] > [View panel] if you miss where the view displays.

### Zoom

It scales a view by dragging up or down.

### Move

It moves the viewpoint.

If you use 3 button mouse, you can move by dragging a mouse with pressing the middle button on 3D image without selecting this command at the default setting.

### Rotate

It rotates the viewpoint.

The center of rotation changes according to Center of rotation in Configuration.

You can set up in [Configuration] when you want to rotate 360 degrees up and down freely. And you can also change the type of rotation like a trackball in the configuration.

You can rotate by dragging a mouse with pressing the right button on 3D image without selecting this command at default setting.

### Perspective

It changes the viewing angle.

### Dolly

It changes the distance between the eye position and the fixation point without changing the viewing angle.

You can zoom as dolly by dragging a mouse with pressing the middle button or both the right and the left buttons on 3D image without selecting this command at the default setting.

### Clip plane

Change the position of the clip plane.

Objects are displayed only one side with the clip plane as the boundary when [Viewheader > Display > Clip plane] is checked.

One side with the clip plane as a boundary is hidden.

X/Y/Z
  If you click it, the position of the clip plane moves parallel to each axis, X/Y/Z.
Flip
  Flip the clip plane, and switch the display side.
Hide faces only
  If it is checked, vertices and lines are displayed while the side of the objects is clipped.
Show cutting line
  If it is checked, cutting line by clip plane is shown on the objects.