| Toolbar | Menu | 
|---|---|
| 
                             | View Background Bitmap > <Options> | 
The BackgroundBitmap command manages a background image in the current viewport for tracing or design analysis.
Only one image can be placed in a viewport at a time; placing a second deletes the first.
Background bitmaps are a construction aid, not a part of the scene that will be rendered. To place an image that will render, see the Picture command or viewport Wallpaper.
Background bitmaps are always aligned with the x axis of the construction plane. If you want your bitmap rotated with respect to the construction plan, you must open it in a bitmap editing program and rotate it there, or you can create a rotated construction plane and place the bitmap on it.
| Command-line options | |
|---|---|
| 1To1 | The 1to1 option determines the width and height of the image in pixels, the resolution of the image in dots-per-inch, and automatically scales the image based on the model's current unit system. | 
| 
                             | The Align option lines the background bitmap up with selected locations. Align steps
 | 
| Grayscale | Determines whether the background bitmap image displays in its original color or a grayscale version of the bitmap. 
 Grayscale=Yes (left); Grayscale=No (right). | 
| Extract | Saves the bitmap to an external file. | 
| Filter | Estimates pixel values to try to create a smoother image. | 
| 
                             | Moves the background image. Move steps
 | 
| 
                             | Inserts a background image in the current viewport. Placing a new background bitmap replaces the current bitmap. Place steps
 1To1Determines the width and height of the image in pixels, the resolution of the image in dots-per-inch, and automatically scales the image based on the model's current unit system. | 
| Refresh | Updates the stored bitmap if the file has changed. | 
| Removes the background image from the current viewport. | |
| Changes the size of the background image in the current viewport. Scale steps
 | |
| Visible   | Determines whether the background bitmap displays in the viewport. | 
Rhinoceros 6 © 2010-2020 Robert McNeel & Associates. 11-Nov-2020