## View Header

There are buttons for controlling displays in the [View Header] on the top of each view.

### View change

When a title of a 3D view is clicked, the following menu will be shown. It switches a perspective view and an orthogonal view, and also changes a view angle. In the three orthogonal views, it switches perspective, orthogonal, top, front, left, bottom, back and right views.

[Capture and save] saves the displayed image to a file or a clipboard.

### Point/Line/Face

When the buttons are clicked, points, lines or faces are shown or hidden. When you click the buttons with Shift key, only the element of the button is shown.

### Simple

When the simple button is on, patches, blobs and so on are displays as simple shapes.

Simple patches is ON | Simple patches is OFF

When you right-click on the button, a menu will shown. You can select the target to display simply.

### Front

When the button is on, only front side of vertices and lines are shown.

ON | OFF

You can specify the opacity of back side of lines when the front option is off in [Display > Line > Back line opacity] in Configuration.

### Display

It selects display options for a view.

For each view
  XY/YZ/ZX plane
    It displays a XY, YZ, or ZX plane as a mesh on the 3D view. When you click the icon, you can execute [Set Grid].
  Scale
    It displays a scale by a constant interval on X, Y or Z axis. When you click the icon, you can execute [Set Grid].
  Axes
    It displays X, Y and Z axes.
  Background image
    It specifies whether to display a background image in the view. When you click theicon, you can execute [Set Background Image].
  Alpha
    It selects from [Disable] or [Enable], [Correct depth] how to display semi-transparent objects. Objects on the back side may not displayed in the [Enable] mode when the semi-transparent objects overlap multiple in the depth direction. [Correct depth] displays them correctly, but it is available only in Direct3D 11 display.
  Textures
    It specifies whether to display textures.
  Smooth shading
    It specifies whether the display a surface of an object smoothly. It can show the surface of the object smoothly. It delays a little to show.

    ON | OFF

  Lighting direction/color
    It specifies whether to apply lights' direction and color for displaying faces. When this check is off, only one light is applied. When you click the icon, you can execute [Lighting Settings].
  Shadow (only EX edition)
    It specifies whether a shadow is displayed or hidden. The shadow can be displayed in [Direct3D 11] only.

    Shadow ON | Shadow OFF

  View Panel
    It can numerically input a direction and a position of the camera, clipping and shadow parameters, and can initialize the viewpoint. You can also change the target view in [Target]. When you choose this menu with pushing the shift key, the viewpoint is initialized without showing the dialog.
  Reset
    It restores the view state to the initial one.
For all views
  Show only faces in a current object
    It shows only faces in a current object.
  Show line of uncurrent objects
    It specifies how to show vertices and lines of objects excluding a current object.

    Normal | It shows vertices and lines with the assigned color to the object.
    Dark | It shows lines by the color specified in [Display > Color > Dark] in Configuration.
    Hidden | It hides vertices and lines.

  Show selected parts only
    It shows the selected vertices and lines only, and hides the unselected part.
  Lines overwrite faces
    It always shows vertices and lines overwrite faces without considering for the z-order.
  Show back faces by force
    It shows back side faces in red.

    ON | OFF

  Highlight open edges
    It highlights lines that are not shared by other lines.

    ON | OFF

  Show subdivision wires
    It displays or hides subdivision wires.

    ON | OFF

  Display unit (only EX edition)
    It selects the display unit from [None], [mm], [cm], [m], [in] and [ft].
  Renderer
    It selects the rendering method from [Direct3D 9], [Direct3D 11] and [OpenGL]. Please see details in Preview.

### Synchronize

Operations in the view header on each view (Point/Line/Face /Simple/Front display, view scaling, view move) are synchronized.

### Zoom

When you drag this icon, the view is scaled.

This operation is same as the wheel rotation in the view.

### Move

When you drag this icon, the view is moved.

This operation is same as the middle-button dragging in the view.

### Rotate

When you drag this icon, the view is rotated.

This operation is same as the right-button dragging in the view.

### Layout

You can select the view layout.

And you can also add a current view layout as a new item by [Register current layout]. The registered layout can be deleted by clicking the icon.

### Single view / 4 views

It switches the display to a single view or 4 views.

Single view | 4 views