Interactive Zoom Navigations Standard (geometric) Zooming ▫ Get close in to see information in more detail ▫ Example: Google earth zooming in Intelligent Zooming ▫ Show semantically relevant information out of proportion ▫ Smart speed up and slow down ▫ Example: speed-dependent zooming, Igarishi & Hinkley Semantic Zooming ▫ Zooming can be conceptual as opposed to simply reducing pixels ▫ Example tool: Pad++ and Piccolo projects  http://hcil.cs.umd.edu/video/1998/1998_pad.mpg http://hcil.cs.umd.edu/video/1998/1998_pad.mpg
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