Module 7 - Neocartography, 3D Mapping and Google Earth

Lecture material for the final module in cartography covered several aspects from Neocartography and VGI (Volunteered geographic information) to 3D and Google Earth mapping. We explored the growth of volunteerism in gathering geographic information, mainly due to citizens mapping their communities. This has led to Volunteered Geographic Information. Technologies like Wikimapia and OpenStreetMap enable users to contribute to maps, but this can also create accuracy challenges. Many platforms require users to build credibility, and AI can help find false information.

In the 3D videos, we explored the integration of 2D and 3D visualizations within ArcGIS Pro, as well as the application of Lidar (Light Detection and Ranging) technology for enhanced 3D visualization. Lidar is a remote sensing technique that gathers data via aircraft equipped with laser technology, which emits laser light to measure distances and collect various data points for analytical purposes. Furthermore, we identified the method for producing animated videos in Google Earth Pro, which allows us to efficiently communicate our findings to audiences who may lack access to GIS applications.

During this week's lab session, we developed a population dot density map and a tour map utilizing ArcGIS Pro and Google Earth Pro. A significant advantage of employing Google Earth Pro for mapping purposes is its availability as a free download, making it accessible to individuals without a background in Geographic Information Systems (GIS). Furthermore, geographic data can be saved and shared in the form of KML (Keyhole Markup Language) files or KMZ files, which are compressed versions of KML. These formats are specifically designed for displaying geographic information in applications like Google Earth.

Initially, we incorporated the surface water layer into ArcGIS Pro and applied the appropriate symbology, ensuring it matched the legend provided in the accompanying JPEG file. Utilizing "Layer to KML" tool in ArcGIS pro to convert the layer into a KML file format. Double clicking on the new file will open it in Google Earth Pro. Following this, we added the legend along with two additional layers: one for counties border and another for the dot density layer. To ensure the dot density layer displayed prominently, we adjusted its settings in the altitude tab under layer properties. Consequently, we created a new folder within My Places and transferred the layers from the temporary places folder into this newly established folder, and saved the layers as a KMZ file.

The subsequent task involves creating a Google Earth tour that highlights the entirety of South Florida, including Miami metropolitan area, Downtown Miami, Downtown Fort Lauderdale, Tampa Bay area, St. Petersburg, Downtown Tampa, and culminating back at the full map of South Florida. To achieve this, we generated a placemark for each designated location by utilizing the Add Placemark button on the toolbar. Finally, we recorded the tour using the "Record a Tour" button, saved it, and organized it alongside the other map layers, ultimately saving the locations as a KMZ file for the tour.

Creating a seamless tour in Google Earth presented significant challenges due to its limitations. After numerous attempts, I successfully recorded a tour that meets my expectations. One key lesson learned in crafting a smooth tour in Google Earth is the importance of establishing multiple placemarks for the city. This approach facilitates a fluid transition between placemarks, resulting in a more cohesive and continuous movement throughout the tour.