Getting to Know Web GIS (2022, 5th edition)
Chapter 1
Web GIS is accessible and versatile with many ways for information to be shared and utilized by various organizations. The five main content types of web GIS: data, layers, tools, web maps and scenes, and apps (basemaps, operational layers, and tools are basic components).Ā
Depending on where the underlying data is stored, feature layers can either be hosted or nonhosted.
Hosted: A web service is based on ArcGIS- managed data (data is stored in ArcGIS Online cloud database or ArcGIS Data Store)
Nonhosted: A web service connects directly to user-managed data (data is stored and managed by an organization)
Workflow for Building Web GIS Apps = Data sources, desktop tools, ArcGIS Online/ArcGIS Enterprise, client apps
Attachment Viewer is an instant app template that allows the user to quickly build an app that presents spatial data with a feature-by-feature browsing experience and image-based display.
Chapter 1 – App
Chapter 2
Feature layers are the most common type of operational layers and hosted feature layers are the most widely used operational layer. Hosted feature layers, hosted Web Feature Service (WFS) layers, hosted tile layers, hosted vector tile layers, hosted Web Map Title Service (WMTS) layers, hosted scene layers, hosted image layers, and hosted map image layers are all all types of hosted layers that can be published to the Esri geospatial cloud. To publish a hosted feature layer, a user could create a feature layer from their own data, create a feature layer from an existing template, or create an empty feature layer and define their own fields interactively.Ā
Smart mapping uses intelligent defaults, data-driven visualizations, and innovative workflows to allow the user to share professional-quality maps easily and with minimal cartographic or software skills.Ā
ArcGIS Arcade allows the user to build custom expressions based on existing fields and geometries the way that Microsoft Excel allows the user to write formulas to work with their spreadsheet.Ā
ArcGIS Living Atlas provides basemap, imagery, boundaries, people, infrastructure, and environment content categories.
The types of blocks (components used to build a story) include sidecars, slideshow blocks, map tours, swipe blocks, and timeline blocks.
Chapter 2 – Story Map
Application based on ideas from Chapters 1 & 2
I could create a Flood Resilience Planning App to help Delaware County officials and residents see how new infrastructure projects might be affected by flooding. Delaware data layers like floodplain boundaries, road networks, parcel data, and elevation contours would visualize areas prone to flooding and how developments might be impacted. Users could explore “what-if” scenarios, like whether a proposed road expansion could become a flood hazard or if a new neighborhood is at risk. Interactive tools could allow users to click on specific locations to see flood risk levels, past flood events, and property ownership details.