CONSISTENCY OF RENDERED IMAGES AND THEIR TEXTUAL LABELS

We present algorithms and their implementation in the ZOOM ILLUSTRATOR which enable textual labels to “float”around rendered images to which they refer. The labeling remains consistent, even when the image is rotated or scaled. Furthermore, the level of detail of the labeling adjusts to the screen space available. This is accomplished using fisheye techniques on the labels. We describe a prototypical implementation using the Open Inventorand C++ on Silicon Graphics Workstations.