![]() When you style a layer using smart mapping, the available styling options depend on the type of data you are mapping (point, line, polygon, or imagery) as well as the type of data attributes (numbers, categories, dates, and so on) and number of attributes you choose. On the Contents (dark) toolbar, click Save and open and click Save to save your styling changes to the map.In the Style options pane, click Done when you finish customizing your style, or click Cancel to return to the Styles pane without saving your choices.For example, if you choose the Types and Size style, choose options for Types (unique symbols) and Counts and Amounts (size). With Color and Size, Types and Size, Predominant Category and Size, Relationship and Size, Types and Size (age), and Color and Size (age), you apply styling options to each attribute. To apply a style or change the style of a feature layer, do the following: You can change the style of a supported layer at any time by clicking the Styles button on the Settings toolbar. If you add a layer with existing styling applied, Map Viewer respects that styling. When you add a layer without any styling attached to it-for example, you add a hosted feature or imagery layer from its item page immediately after publishing- Map Viewer displays the layer with default styling applied. You can also use Arcade expressions when setting transparency for features or the rotation angle of symbols, as well as when configuring pop-ups and labels. You can also create an Arcade expression or edit an existing Arcade expression directly in Map Viewer. ![]() The yearly sales figures can then be represented as different-sized symbols on the map. For example, you can create an Arcade expression to derive a yearly sales figure for individual sales territories by summing the value of monthly sales fields. Instead of styling a feature layer using explicit attributes in the layer, you can create a custom attribute expression written in ArcGIS Arcade to use for styling. By analyzing these and other characteristics of the data, Map Viewer presents the best styling options. Not every styling option can be used for every type of data. Styling options also vary depending on whether you want to show one or two attributes, such as revenue or population. For example, a point feature may only have location information such as geographic coordinates but may also have categorical information such as tree species or numeric information such as air temperature. The options are also influenced by the type of attribute data associated with the layer. For example, heat map styling options are available for a layer composed of points, but not for line or polygon layers. The available options depend on whether the feature layer is composed of point, line, or polygon features, or whether you are mapping imagery or raster data. The styling options provided for a layer are based on the type of data you are mapping. To view the full list of keyboard shortcuts in Map Viewer, press Alt+? on Microsoft Windows or Option+? on Mac. You can use keyboard shortcuts to quickly complete common workflows in Map Viewer.
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