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This case study illustrates:
(1) Tools for analysing and reporting on the
semantic structures of attributes associated with shapefiles:
(2) Working with
hierarchically structured attributes (eg: rock types):
| Selecting a rock-type during
attribute input: |
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(3) Working
with lists of "same-type" attributes (eg: two rock types in the same
polygon; many minerals in same rock):
| Semantic net storing two rock types
in one polygon (psammite and pelite). |
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| Semantic net storing details of
many minerals in one rock. |
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(4) Storing information about compound objects
(eg: rocks made out of rocks):
| Storing a description of
intercalations which details the rock types within them. |
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| Storing a description of anorthositic
and gabbroic bands in a schist. |
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(5) Displaying close and intermediate matches to a query:
| "Show metamorphic rocks that are
light grey". [Red => a perfect match; Medium red => "grey
metamorphic rocks"; Light red => "metamorphic rocks". |
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(6) Providing explanations:
| "Explain why polygon 73 is a perfect
match to the query" |
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(7) Combining the results of multiple
LegendBurster queries into one map:
| "Find igneous rocks"
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(1) ArcGIS 8 Screenshot
(2) Interactive map in web browser (160 Kb). Click
on polygons to see all original shapefile attributes. |
| "Find metamorphic rocks"
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| "Find all light grey rocks" |
(8) Comparing different classification systems
| Using the BGS Rock Classification
System [view]
alongside the GSC-proposed system [view]. |
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