...about the visualization
Data describing a section of the atmosphere are imported.
This particular section of the atmosphere shows a wide variation
in moisture content, temperature, and wind velocity. Choose
a variable in the "Data Selection" page, and then vary the
isosurface value in order to see regions with common characteristics.
...about the visual program
This visual program demonstrates the use of data-driven scalar
and integer interactors. The integer interactor controls the
slab position and is constrained by the size of the data sets.
The Scalar interactor which chooses the isosurface value is also
data-driven, so that it cannot exceed the range of the data values.
...about the conversion to web page
The original visual program rendered an object and used the Collect
tool to combine that with a color bar and a caption. The web version
of the .net file, does not use Collect. Instead each part of the
original image is separated into its own Image tool. The resulting
pictures are then assembled in an html table giving the web page
author greater flexibilty in layouting out the document and increasing
the proportion of meaningful gif byte transmitted with each new image.
...about Enable Animation
This web page passes the following parameter to the applet which
controls the Data Explorer sesssion:
< param name="CACHING_FEATURES" value="true">
The applet has the built-in ability to cache images inside the
browser. Normally this ability is used on behalf of Orbit
mode and on behalf of operating Data Explorer's Sequencer.
The html author can provide access to this caching function
in his web page by setting CACHING_FEATURES. Then the end-user
can enable caching by clicking the Enable Animation toggle
and specifing a cache size. The applet will cache as many images
as requested, allowing the user to play back a sequence by selecting
Review in the Mode menu.
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