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In this video, we'll learn how to use GeoCanvas' 3D visualization tools to explore building data.
We'll take advantage of the fact that we can color shapes with a different attribute than the one used to extrude them.
Here's a shape layer with the footprints of all the buildings in Chicago.
Each building footprint shape has several attributes
including the number of stories in the building and the year of construction.
We can color each building based on the year it was built.
We use a linear scale, and customize it so that it begins in 1850 and ends in 2015.
This map gives us a good idea of the ages of the buildings and even of different neighborhoods.
Lighter buildings are older, and darker buildings are newer.
Now, let's extrude each shape to a height proportional to the number of stories.
Let's assume roughly four meters per story,
or 0.25 stories per meter, and use this as the scale.
Scale factors can be specified in either meters or feet.
The result is a 3D representation of the buildings in Chicago,
color coded by their age, generated from a 2D shape layer.
We can easily capture an image of this view by clicking on the "Capture Screenshot" button in the toolbar.
Clicking this button saves an image of the current view.
This feature just captures the contents of the 3D view, and leaves out the surrounding panels, toolbar, and window frame.
You can expose more of the 3D view by hiding the layer, legend, and table panels.
You can do this either from the "View" menu, or with the shortcut keys shown in the menu.