Nx Witness User Manual
The Viewing Grid is the empty background of cells into which items are placed to create a layout. Each layout is displayed in a separate tab of the Viewing Grid. Tabs allow you to have multiple layouts open at once.
The cells of the Viewing Grid are only visible when you move or re-size an object in layout. When an item is being moved, a green cell indicates where it can be placed, red cells indicate where it cannot be placed.
The Viewing Grid has a default cell aspect ratio of 16:9, currently the most common aspect ratio of cameras on the market, but will shift to the aspect ratio of the first item placed in a new layout. This is important to consider when designing your layout. Subsequent items added to layout retain their native aspect ratio regardless of the aspect ratio of the Viewing Grid. However, the default aspect ratio for a layout can be changed using Cell Aspect Ratio from the Viewing Grid context menu.
It is also possible to control the size of the Viewing Grid cells for specific layouts; see "Configuring Layouts".
The Viewing Grid has a setting for the space between cells (None, Small, Medium, or Large) which is useful when you need to make a layout more compact. Access this control from the Viewing Grid context menu by choosing Change Cell Spacing.
There is also a setting for the display resolution of the items that are currently displayed (Auto, Low, High), which is controlled from the Resolution option in the Viewing Grid context menu (right-click on the camera tile).
This feature is used to change the spacing between items in a layout so they can be closer together or further apart.
For example, four individual single-sensor cameras that together form a 180 degree panoramic view would best be displayed without any space between cells.
To adjust the distance between items, open the Viewing Grid context menu and select Cell Spacing, or use Ctrl+Mouse Wheel over the Viewing Grid. Options are None, Small, Medium, or Large.
Cameras provide video in a variety of aspect ratio formats. To populate layouts efficiently, Nx Witness attempts to match the default aspect ratio of an Item window to the aspect ratio of its contents.
The Viewing Grid adjusts to the aspect ratio of the first item added. To change the aspect ratio of an entire layout, right-click anywhere on the Viewing Grid, and use Cell Aspect Ratio from the context menu to select from the available options (4:3, 16:9, 1:1, 3:4, or 9:16).
You can set the resolution for all items in a layout by right-clicking anywhere on the Viewing Grid, and using Resolution from the context menu to select from the available options (Auto, High, or Low). Auto allows each device to display at it's own default setting. Once the resolution for an entire layout is set, you can still set the resolution of an individual item as desired, in which case the layout resolution will display Custom to indicate that not all items are using the same resolution setting.
