![]() | Discrete Dynamics Lab |
Update January 2025 ddlabz13... is documented in this hyperref .pdf book (EDD) ExploringDiscreteDynamics‑updateJan2025... an updated version of the paperback Exploring Discrete Dynamics, Second Edition, 2016, Luniver Press -- available at Amazon-UK, Amazon-USA, and other online book sellers.
This Jan 2025 update (following the Sept 2024 update)
includes
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Isolating fragments in a 6x6 2d network-graph with a k=3 triangular
n-template (#10.1.3).
Center: the graph with a linked fragment and a block
both slightly dragged and and rotated.
Left: the isolated linked fragment centered on node 22 according
to ``inputs'' and ``step=1''.
Right: the isolated ``block'' defined between nodes 14 and 0.
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DDLab has been updated at regular intervals since its release in 1995.
Its precursor was the Atlas software included on diskette
inside the back cover of
"The Global Dynamics of Cellular Automata" 1992. Click here for a list and downloads of this and older versions Below are links to previous updates,
Sep 2024
(EDD2ndEd-update) |
An update to ddlabz13 (EDD #20.4.9)
includes isolating ``fragments'' (in addition to ``components'')
in interactive graphs, applying to all three types: network, ibaf, and jump.
The drag toggle just-j to isolate a component (such as a basin in the ibaf-graph) has been
extended to just-j/J to also toggle isolating the active fragment or active block
and hide the rest the graph.
A red top-right inset in the drag reminder
j
or
J
keeps track if either is active.
Isolating a linked fragment in a 2d network-graph
Click the central cell (24) to activate it and enter drag-mode --- node 24 should appear in the drag-reminder. Enter i to set the link status to inputs, then enter a number<6 to set link-steps, step=3 for example. The linked fragment can be moved or manipulated as usual, but here it is left in place --- enter J to isolate the fragment. While J is active --- J appears in the drag-reminder --- changing link-steps will immediately show the new isolated fragment, where link-steps≥6 includes the whole network. Note that the boundary of an isolated linked fragment includes incoming edges. |
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Last modified: Jan 2025