Module 3 - Visibility Analysis

    This week, in the third Applications in GIS lab, was about Visibility Analysis.  

    For this weeks module, we took some ESRI learning courses to learn more about Visibility Analysis and how to use the tools within ArcGIS. This was broken up into three courses. 

    The first course was introduction to 3D virtualization, which took about 3 hours. This course focused on using the ArcGIS analyst extension and and screen viewer in order to use transform 2D data into 3D as well as view and interact with the 3D data. In using it we also learn how to organize, navigate, and view the realistic representation of the data we are looking at. 

    The second course was performing line of sight analysis, which took 1 hour. This course focused on using the line of sight tool and 3D analysis in order to determine visibility from certain viewpoints and performing more detailed analysis on the data. This also taught us input accuracy for our points as we have to account for obstacle obstructions to happen. This ties into scenario testing where we have to consider more factors that may impact our sight analysis. 

    The third course was performing viewshed analysis within ArcGIS Pro, which also took an hour. This course focused on using the viewshed tool and digital elevation model to look out upon the 3D data from an area while also taking into account the changes in elevation needed for the tool to work. This was helpful in expanding on the previous course and also providing a more practical uses for the tools we are using. It also was helpful in learning what our analysis parameters should be and how we should visualize our 3D models. 

    The last course was sharing 3D content using scene layer packages, which took 2 hours. This course focused on using scene layer packages as well as how to share our content on the ArcGIS ESRI site. Mostly with scene layer packages, it was utilizing the tools needed extract and export them. The later subject of ESRI site data managements is a slight refresher as I have utilized it in the past.

    In review, this module was a good expansion on the lecture content and provided decent information in using 3D tools in ArcGIS. Whether this is strictly in learning to use it or utilize it in future maps remains to be seen. Overall though, it provides a good learning experience more into ArcGIS. 

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