This map shows current real estate listings as red stars on a background colored by the percentage of the population that is under 18 - yellow denotes a low percentage, and orange denotes a higher percentage.

1
Thematic Mapping Over the Internet
This map shows current real estate listings as
red stars on a background colored by the
percentage of the population that is under 18 -
yellow denotes a low percentage, and orange
denotes a higher percentage.
2
Spatial Geo-Query over the Internet
Often users want to constrain their selection to
listings that fit geographic constraints, such as
distance from a place of employment, or proximity
to a school. This image shows all listings of
houses within 3/4 of a mile of a specific
hospital" (blue circle). The details of the first
property in the constrained shown, but users can
view the details of any house in the list simply
by clicking on link in the MLS column of the
table.
3
Extending Spatial Geo-Query
This image illustrates how multiple criteria can
be used to select listings. In the example a
geo-search is made to locate houses that are
within 3/4 of a mile of a specific hospital AND
also within 1 mile of a specific park." Only the
properties that satisfy both criteria (shown as
the intersection of the blue circles) are
selected and described in the results section at
the bottom of the query window.
4
Extending the Thematic Map
This map shows the selected houses (green stars)
on top of a Spot image. Real world features
provide insight into local conditions...
From location, location, location to
data, data,
data
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