Querying GIS with Animated Spatial Sketches

@inproceedings{Haarslev1997QueryingGW,
  title={Querying GIS with Animated Spatial Sketches},
  author={Volker Haarslev and Michael Wessel},
  booktitle={VL},
  year={1997}
}
We present the design of the visual query system VISCO that offers a sketch-based query language for defining approximate spatial constellations of objects. VISCO smoothly integrates geometrical and topological querying with deductive spatial reasoning. It is based on a strong physical metaphor visualizing semantics of query elements. Approximate queries… CONTINUE READING