![]() ![]() The next step was to create simple rules to display the data from the ArcGIS online story map. Since the buildings are not really the main focus area of the scene, and used as reference only, I applied a simple Extract rule to extrude all the buildings to their height attribute and set the transparency at 0.8 (1 = fully visible). I decided to include the Cape Town building footprints in the scene as 3D basemap only. The point cloud is so detailed, so complete and so. The density and accuracy of this recording creates clouds of 3d points which are the equivalent of making a cast of the object or site being surveyed. A laser scanner can record hundreds of points in a matter of seconds. Although the image layer appears to be a null, for cells with height values of 0 it displays the entire terrain once exported. A modern theodolite records 3d coordinate data one coordinate at a time. When I draped an aerial image over a height map, I saw that raster values with a 0 height (at sea level) were displayed as white. The first thing that I noticed with CityEngine 2013 is the new way it displays raster images. I then decided to create a 3D version of that map. Esri South Africa created an ArcGIS online story map to help guide visitors around the city. ![]() The main talking point this year at the office is the first ever Esri Africa User Conference in Cape Town later in the year. ![]() It took a while to remove all the cobwebs after the long break, but I finally got around to playing with CityEngine 2013 (could have just as well been CE 2014!). ![]()
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