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Finally, this is an iterative process. The user would continue this until they were satisfied that all important features had been made visible, and the visualization is complete.

A key element of our system is its ability to provide the user with immediate feedback. This is important, given the complexity of setting higher dimensional transfer functions, and our limited understanding of the space of the space in which they live. Interactivity helps us achieve our goal of guiding the user toward setting better transfer functions.