The BIVAS Web viewer is used to present the results of calculated BIVAS scenarios and to inspect the output of the AIS Network Mapper. By selecting a scenario or AIS dataset, the viewer opens and displays statistics per arc and, optionally, per segment. These statistics can be explored both in an interactive map and in a table view.

The BIVAS Web viewer can be opened by clicking on a BIVAS scenario or AIS dataset from their respective overview pages. The viewer consists of three main components: a map component and two table components (Data and Segments). Depending on whether BIVAS scenarios or AIS data are viewed, different filters and statistics are available.

The map component provides a geographical visualization of the calculated scenario or AIS dataset. Based on the selected filters, statistic, and grouping method, the resulting values are displayed per arc. Navigation within the map is possible by dragging the mouse while holding the left mouse button. Zooming in and out can be done using the mouse scroll wheel or the + and - buttons in the top-left corner. Clicking on an arc displays its associated properties and statistics. The same information is shown when hovering over an arc while holding the CTRL key. This interaction also applies to the segments layer. Several additional options are available on the right-hand side of the map:

• Layers: allows individual map layers to be enabled or disabled.
• Legend: displays the legend for the Statistics and Arcs layers, if enabled.
• Configuration: allows adjustment of visual properties of the Statistics map layer (scale, minimum and maximum values of the color range, and width).
• Restore: resets the map to its original bounding box.

The example below illustrates how these settings can be customized.

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stroke-function: logarithmic; stroke-range-low: 10; stroke-range-high: 1000; stroke-width: 3;

The table component shows the aggregated statistics for each arc. It also displays the name of each arc along with its origin and destination zones, providing a clear view of its location. Tables can be sorted by clicking on a column header: the first click sorts in ascending order, a second click sorts in descending order. You can search and filter the results by clicking the magnifying glass icon, which provides two ways to search and filter the data:

1. A global search bar that searches the entire table for the entered term.
2. Per-column search fields that search only within the selected column.

The available filter options depend on the column type. For text-based columns, the following filter modes are supported:

• =Aa returns values exactly equal to Aa
• ≠Aa returns values not equal to Aa
• ..Aa.. returns values containing Aa
• Aa.. returns values starting with Aa
• ..Aa returns values ending with Aa

For numeric columns, the following filters are available:

• =100 returns values equal to 100
• ≠100 returns values not equal to 100
• >100 returns values greater than 100
• ≥100 returns values greater than or equal to 100
• <100 returns values less than 100
• ≤100 returns values less than or equal to 100

Tables can be exported to a CSV file via the three-dot menu by selecting Export. Please note that values displayed in the table are rounded, while the exported file contains higher-precision values.