A Visual Tool for Querying Geographic Databases

  title={A Visual Tool for Querying Geographic Databases},
  author={Andreas D. Blaser and Max J. Egenhofer},
  booktitle={Advanced Visual Interfaces},
To support users in querying geographic databases we have developed a system that lets people sketch what they are looking for. It closes the gap between user and information system, because the translation of a user's question into a processable query statement is delegated to the information system so that a user can focus on the actual query rather than spending time with its formulation. This system paper highlights a set of interaction methods and sketch interpretation algorithms that are… CONTINUE READING


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Multi-Modal Spatial Querying

M. Egenhofer
Seventh International 215 Symposium on Spatial Data Handling, • 1996
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