Drop Target Guidelines for Trellises

The following guidelines apply to working with drop targets in trellises:

• Expanding Drop Targets in Trellises — The Layout Pane of the trellis editor is notably different in that it is vertical rather than horizontal. When drop targets contain more data than can be shown within this more narrow Layout Pane, the drop target containers expand on hover. That is, when you hover the mouse over an overfilled drop target, you see the complete selection of measures and columns, and you can move and reorder even the measures and columns that were not visible before the hover. The chosen item appears with a slight transparency as you drag it.

• Placement of Measures — The following are considerations to keep in mind as you work with measure columns in trellis views:

  • Measures can be reordered within the measures drop targets by dragging left or right.

  • In simple trellis views, measure columns can be placed only on the measure edge of Color By or Group By.

  • In some simple trellis visualizations (scatter graphs, bubble graphs, and line-bar graphs), you can swap measures. If you drag an existing measure from one axis and drop it in the target for another axis, the two measures' positions in the view are swapped.

  • Scatter graphs, bubble graphs, and line-bar graphs allow a single measure per axis, as follows:

    • Scatter graph drop targets: Horizontal Axis, Vertical Axis

    • Bubble graph drop targets: Horizontal Axis, Vertical Axis, Size

    • Line-bar graph drop targets: Bar Axis, Line Axis

  • In advanced trellis views, measures comprise the innermost column headers of the trellis.

  • When moving measures from the Color By drop target to or from the Group By drop target:

    • Dragging a single measure moves all the measures along with it. (This is known as sticky behavior.)

      Exception: Upgraded analyses automatically select the Treat as an Attribute Column box for measures (in the Edit Column Formula dialog: Column Formula tab), so this sticky measure behavior only happens if you deselect the Treat as an Attribute Column box for existing measures.

    • Dragging a new measure into the view moves all existing measures to wherever you place the new measure.

  • To place a measure on the non-measure edge of a visualization, or in the Rows target or Columns target, you must first convert the measure to an attribute column. You do this in the Edit Column Formula dialog: Column Formula tab.

  • Attribute columns can be dragged out of the Measures drop target without causing the drop target or the measures inside it to move with the attributes.