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1.1 Basic Concepts and Terms used in TimeMap
| Dataset |
The term dataset is used to
describe any set of electronically available information
that may come in the form of a relational database or
downloadable data files.
In ECAI's methodology, a dataset must have two components
in order to be viewed in TMView:
- spatial structure: point, line or polygon, and
- metadata in the form of a .TMM or .XML file
Datasets may include temporal data to take advantage of
the time-enabled map display feature of TMView. |
| Layer |
A layers can be thought of as a view of
a datasets. It may be a view of the dataset in its entirety,
or a filtered view of just certain elements in the dataset.
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| MapSpace |
MapSpaces provides a way to organize datasets
and layers with a common theme into a single map. |
| Metadata |
Metadata is often referred to as "data
about data". It serves to describe the contents of
a dataset in general terms - it is effectively catalogue
information. ECAI has adopted the Dublin Core standard
for descriptive metadata. ECAI has created its own administrative
metadata, as well as connective and structural metadata. |
1.2 Web TimeMap Viewer - TMJava
The TimeMap Java map viewer, TMJava, is an intelligent
client which downloads vector and raster data and can handle
temporal filtering, data-driven hotlinks and access to distributed
datasets. Additional functionality built into TMJava include:
- Map panning and zooming
- Switching dataset layers on and off
- Popup information on map rollovers
TMJava is not platform specific, but does have
the following Internet browser requirements:
MacIntosh users - TMJava will run on Internet Explorer
on a Mac.
PC users - TMJava will run on Internet Explorer or
Netscape Navigator on a PC. Users of either browser will need
the Java™ 2 Standard Edition Runtime Environment Plug-in
installed. The Plug-in and installation directions for either
browsers can be found at: http://java.sun.com/getjava/download.html.
Note: If you browse web sites that use international
characters, see Netscape's information about using the Java
Plug-in for international characters with various browsers,
http://www.netscape.com/eng/intl/ns6-jrefontinfo.html.
You can get a Java Plug-in for international users from
the Netscape site at: http://www.netscape.com/plugins/jvm-intl.html.
Enhanced interactive map creation and display
can be accomplished with the suite of TimeMap software applications.
The TimeMap software download file is approximately 57MB.
The software download includes the following applications:
| Software |
Description |
Functionality |
| TMView |
TMView is the
data browser, map viewer and map manager of the TimeMap
suite. |
Allows zooming,
panning, labelling and symbolisation of map. Enhanced
features include the abilities for time-enabled GIS, map
animation, access to Internet datasets and distributed
GIS, dataset layer control and map-object to resource
linking. TMView is also a clearinghouse browser and a
MapSpace manager. |
| TMEdit |
TMEdit is the metadata creation
and editing tool of the TimeMap suite. The tool creates
metadata that can then be read by TMView. |
Includes metadata editing and
creation capabilities including a 'wizard' for automated
metadata creation. Other features include the ability
to connect to the ECAI Clearinghouse to register and retrieve
datasets, and the ability to pump data to an SQL data
server, web server or GIS server. |
| TMGeoreg |
TMGeoreg is designed to quickly
georegister an image and generate worldfile metadata that
easily integrates into metadata files. |
Correctly geo-registraters
unprojected (lat/long) images. |
| TMLocate |
TMLocate is a
program designed to position photographs, paintings or
other spatially located objects relative to digital map
data. |
Allows user to
select a photograph, zooms in on the location of the photograph
on a map, locate the exact point from which the photograph
was taken, and then
clicks and drags in the direction the photograph was taken.
A symbol representing the direction from which the photograph
was taken is placed on the map.
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| MapObjects Runtime Iinstallation |
MapObjects software combines
components for embeddable mapping and GIS functionality.
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MapObjects can be used to create
applications with dynamic mapping and GIS capabilities.
See www.esri.com. |
Minimum Requirements
Platform: The TimeMap application suite
runs on Windows 95, 98, NT and 2000. It is recommended that
all applicable Service Packs be installed.
Disk Space: The applications combined with sample data
require approximately 230MB of diskspace. More diskspace will
be needed if you download the ECAI ePublication map resources
or additional datasets available through the ECAI Clearinghouse.
How much diskspace is needed will depend on the size of the
dataset.
Memory: TimeMap is not memory hungry and will run comfortably
on any system capable of running standard office software.
Other Requirements
On Windows NT and 2000 you must install these
programs with Administrator privileges.
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