Visualizing 3D data

The DV was offers some facilities to visualize 3D data sets. Specifically, the 3D slicer window allows one to choose a particular coordinate slice of a register to display when the Send to local view is used. As an example, there is a function, inspiral, in DV that produces a 3D register containing an x-y-t slice of a black hole merger (calculated using Newtonian gravity plus the quadrupole formula, and the output is the Newtonian potential). After selecting inspiral from the function window, enter the following arguments (1,10,1,120,100), and press Go! (NOTE: if you have a slower machine, it is advised that you reduce the resolution by changing the arguments to something like (1,10,3,120,32) ):

Two registers, inspiral_2D and inspiral_3D should be produced. Now click on 3D Slicer in the main window, select the inspiral_3D register, and click on Send to local view. In the 3D slicer window, a point-map of the 3D data set is drawn, and various widgets allow one to select different slices of this data. Changing a slice option causes the corresponding 2D slice to be drawn in the 2D local view window. For example, after some manipulation of the view (and changing some of the send options), the 3D slicer window will look something like this:

and the corresponding z=62 slice (in this case) will look like this in the 2D window:

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