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Software Installation | Map
Resource Packet | Using
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Beyond
the Basics of TMView | Using TMJava
6.0 Using TMJava - General
Information
TMJava incorporates many of the functions of TMWin. Figure 1
illustrates the ease of accessing web resources linked to a map.
To view web resources, (1) activate the select arrow (see Map
Toolbar) and click on a feature of the map or draw a bounding
box the encompasses a selected area of the map. As in the example,
(2) a grey screen will appear that shows the map layers that have
information for the selection made. The number of records for the
layer will show in brackets. Click one of the listed resources. If
there is more than one record for the layer, (3) a table of
resources with associated attribute data will appear. Choose a
record and link to the (4) web resource for the record.
Fig. 1 is from ECAI Iraq.
6.1 Map Toolbar
The map toolbar includes a variety of tools for navigating a
dynamic map. Some of the tools might be familiar (zoom and select
features), while some are unique features of TimeMap maps
(animation). The diagram below identifies the toolbar map viewing
tools.
Use the magnifying glasses to zoom in(+) and zoom
out (-), or the crossed bi-directional arrows to move around
the map, or pan, in any direction. Use the single arrow
to select map features, either by clicking on a single
point or by drawing a bounding box around a number of features,
and view attribute information and web resources for the selected
feature(s). The copyright button shows information,
including intellectual property, about each layer of information
on the map. Select the label button to identify features
by name or another attribute value, and use the animation
button (see below) to create a dynamic view of the data as it
changes over time. Theme and extent selection display
views of the map based on a theme designed by the map's author. To
use the zoom to selected layer feature, first select a
layer from the legend and then click on the button. The map view
will change to include all the content of the selected layer. The
zoom to maximum extent feature will show the maximum
extent, or view, of the entire map, with all layers selected. Use
the search field to search for information by map layer.
6.2 Animation
Use the animation button (see above) to create an automated
dynamic view of the map content as it changes over time. Map
content must be time-enabled in order to use this feature. Try the
example settings here on the map below. After changing the
settings, click on the right facing triangle and watch the map
change.
6.3 Map Legend
Use the functions of the map legend to turn layers
off and on, expand the legend for more cartographic information,
and tell when a map layer is out of spatial or temporal
range.
6.4 Map Timebar
The ability to dyanically view map content based on time as
wells as place is an unique feature of TimeMap. When the
features on the map include time values as part of the attribute
data, geographic data with corresponding temporal data, the
display of those features change as the timebar is adjusted to
reflect different points or ranges of time.
Use the tool buttons on the timebar and slide the triangles at
the ends of the lower bar to set a time period for the map
display. The maximum time range depends on the start and end time
values for the data. The range can be limited to the smallest unit
of time for the data (year, month, day, hour) depending on the
nature of the temporal data.
Use this 2-step process to adjust the time range and
zoom in on the timebar
6.5 Sample Map
Experiment with the functionality of TMJava in the
dynamic map below from ECAI
Iraq: Eras and Empires - 1000CE to
1500CE.
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