The user can (1) highlight a region on the map by drawing and selecting the points on the plot, (2) click on the map to highlight that point on the scatterplot and get the pixel values, and (3) define an optional area of interest for which the plot should be drawn. The IS Scatterplot widget allows the user to select two bands from the image service layer and plot their values on a graph.The IS Image Date widget will show the date of the primary or secondary layer (whichever is visible in the app).The dropdown menu in the widget is automatically populated with the service functions associated with the primary layer. The IS Renderer widget sets the service functions and stretch on the primary layer.The IS Display Parameters widget allows users to set interpolation and compression for the primary layer.The IS Display Order widget sets the mosaic rule for the primary layer, which determines which image in the mosaic will be visualized if images overlap.Optionally, users can also use transparency or a horizontal swipe to compare the primary and secondary imagery layers with a Results layer.IS Display Order The IS Compare widget uses a vertical swipe to compare the topmost imagery layer with a secondary imagery layer.
The result is added as a new Results layer, which can be added to the dropdown list of image services available to your app using the IS Layers widget. The IS Change Detection widget allows users to calculate the difference between the primary and secondary layer rasters.After the app user performs analysis, it can also be used to add the Results layer to the secondary layer list. The IS Layers widget sets and changes the primary and secondary imagery layers in the app.The IS Image Selector widget allows the app user to search an imagery layer by a field (chosen during widget configuration), as well as set primary and secondary layers.Web AppBuilder for Image Services (WABIS) is a set of custom widgets to be used in Web AppBuilder that are designed to work with image services.
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