Geoscience Reference
In-Depth Information
Points of Interest based on Active Source (Active POI), dynamical mapping, and dynamical
applications.
9.1 InfoPoints and dynamical cartography
With the integration of interactive dynamical components and dynamical cartography various
surplus values can be used. Figure
a shows an interactive Map of México (Rückemann,
2009). The yellow circle is an event sensitive Active Source object containing a collection
of references for particular objects in the application. This type of object has been named
InfoPoint.
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InfoPoints can use any type of start and stop routines triggered by events.
Figure
b shows a defined assortment of information, a view set, fetched and presented
by triggering an event on the InfoPoint. The information has been referenced from within
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(a) Interactive México with InfoPoint Yucatán.
(b) Sample view set of InfoPoint Yucatán.
Fig. 11. Integrated interactive dynamical components and InfoPoints.
the World Wide Web in this case. InfoPoints can depend on the cognitive context within the
application as this is a basic feature of Active Source: Creating an application data set it is for
example possible to define the Level of Detail (LoD) for zoom levels and how the application
handles different kinds of objects like Points of Interest (PoI) or resolution of photos in the
focus area of the pointing device.
9.2 Inside InfoPoints
The following passages show all the minimal components necessary for a fully functional
InfoPoint. The example for this case study is mainly based on the Active Source framework.
Triggered program execution (“Geoevents”) of applications is shown with event bindings,
start and stop routines for the data.
9.3 InfoPoints bindings and creation
Listing 2 shows the creation of the canvas for the InfoPoint and loading of the Active Source
via bindings.
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