User Interface Behaviors for Spatially Overlaid Implicit Structures
نویسنده
چکیده
Spatial hypertext systems typically assume that when objects are placed in proximity as a spatial aggregation, at least some part of each object will be visible, allowing an object to be selected by clicking on a visible part. This presents problems when an object becomes completely occluded. This paper presents various user interface behaviors which seek to solve the problem of discovery and exposure of completely occluded objects. Behaviors are divided into current behaviors, discovery behaviors, and exposure behaviors. Finally general issues are discussed, such as screen geometry requirements, pluggability, and negotiation among objects for user interface resources.
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