An image file can be displayed on 3D view as a background image.
Click [Load] at left top of 3D view or
button of [Disp > Background image] in View header. You can specify a file-pass for a background image.
Click [OK], an image file is displayed on 3D view.
The following operations on a background image in a view modify the placement.
| Move | Drag the center of the image. |
| Change an aspect | Drag the edge of the image. |
| Resize | Drag the corner point of the image. |
| Rotate | Drag the outer arrow of the image. |
The background image can be switch showing or hiding with checking [Disp > BkImg] in View header.