C# Class ArcMapAddinVisibility.ViewModels.LOSBaseViewModel

returns ILayer if found in the map layer collection

Method to get a ISurface from a map with layer name

Method to get all the names of the raster/tin layers that support ISurface we use this method to populate a combobox for input selection of surface layer

Method to get a z offset distance in the correct units for the map

Method used to check to see if a point is contained by an envelope

Method to check to see point is withing the currently selected surface returns true if there is no surface selected or point is contained by layer AOI returns false if the point is not contained in the layer AOI

Override this method to implement a "Mode" to separate the input of observer points and target points

Command method to delete points

Method to handle the display coordinate type change Need to update the list boxes

Handler for opening the edit properties dialog

Method called when the map TOC is updated Reset surface names

Override this event to collect observer points based on tool mode

Override to add aditional items in the class to reset tool

Method used to reset the currently selected surfacename Use when toc items or map changes, on tab selection changed, etc