In this week's module, we completed 4 Esri courses to learn more about creating 3D map scenes with ArcGIS Pro, and how to conduct visibility and viewshed analysis.
I used the local and global scene views to explore three-dimensional cities in ArcPro. I updated the symbology of plain grey 3D buildings to make them look more realistic by using a procedural symbology. In a global scene view, I could set the time of day to a specific date and time to see how the sun would cast a shadow over my buildings.
I used several new tools geoprocessing tools to conduct a line of sight analysis. I started with the GIS analyst tool, Construct Sight Lines, to create new line features between my observation point and my target point. I used the Line of Sight 3D analyst tool to determine the visibility of each of the new lines. The results showed red lines and green lines, and the green lines represented unobstructed views. I then used the Add Z Information 3D analyst tool to calculate the length of each line and add that length to my attribute table. Finally, I used the Delete Features data analyst tool to remove lines that represented obstructed views and were longer than 1100ft. The end result was a fan triangle on my 3D map scene that showed the specific area that was visible from a certain vantage point in the city.
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