[Haskell-cafe] ANNOUNCE: graphviz-29220.127.116.11
rasfar at gmail.com
Thu Apr 19 19:21:30 CEST 2012
Thanks for bringing Graphviz to Haskell, and for your continuing
dedication to making it more complete!
I just tried Graphvis for the first time a few days ago. I regretted
the absence of example code, especially as the API has been evolving,
so that examples on the Web do not generally work without change.
I see that the inclusion of QuickStart-style documentation is on your
short-term list of milestones. I suppose an example program is not
quite that, but it might help. Do you have something along these
lines? Or, if not, if I managed to put something together which
exercises a good cross-section of the features, do you think you could
include it with the next release? I suppose there's a trade-off
between ease of maintaining the code through releases, and feature
coverage of the example(s)...
I'm CC-ing haskell-cafe in case anyone reading already has some
example code like this, which they'd be willing to donate? If
possible, it ought to be small yet illustrate a lot of features.
On Thu, Apr 19, 2012 at 10:10 AM, Ivan Lazar Miljenovic
<ivan.miljenovic at gmail.com> wrote:
> I should have pointed out that for most people, there should be
> minimal to no API change with this release; the only change I needed
> to make in my own code was that a type-class I had defined in
> Graphalyze was removed as it provided the impetus for the ToGraphID
> class mentioned below.
> On 19 April 2012 22:52, Ivan Lazar Miljenovic <ivan.miljenovic at gmail.com> wrote:
>> I'm hoping the second part of the version number isn't ominous, but
>> I've just uploaded the latest release in my bindings for the Graphviz
>> suite of graph visualisation tools.
>> The changes in this release are:
>> * Added support for the `osage` and `patchwork` visualisation tools,
>> available as of Graphviz-2.28.0.
>> * Updated attributes as of Graphviz-2.28.0:
>> - `SVG` colors are now supported, and the support for different
>> colors has been revamped.
>> - `overlap=false` is now equivalent to `overlap=prism` and the
>> `RemoveOverlaps` option has been removed.
>> - `LabelScheme` and `Rotation` are new attributes for use with
>> - `Scale` is a new attribute for use with `twopi`.
>> - Add new italics, bold, underline, superscript and subscript
>> options for HTML-like labels.
>> - `LHeight` and `LWidth` for getting the height and width of the
>> root graph and clusters.
>> * Updated attributes from the current development branch of Graphviz
>> (i.e. 2.29.*). Please note that these will probably not work yet,
>> but are implemented now for future-proofing.
>> - A new style for edges: `Tapered`.
>> - `XLabel` allows you to specify labels external to a node or
>> edge. `ForceLabels` allow you to specify that these should be
>> drawn even when they will cause overlaps.
>> - `ImagePath` allows you to specify where to search for images.
>> - HTML-like labels now support `ID` values as well as horizontal
>> and vertical rules.
>> - `BgColor` and `FillColor` now take a list of colors: this allows
>> gradient fills for graphs, clusters and nodes. The `Radial`
>> style and `GradientAngle` are also used for this purpose.
>> - `FillColor` is now used by edges to set the color of any arrows.
>> - [WebP](http://en.wikipedia.org/wiki/WebP) output support added.
>> * Other attribute changes:
>> - Use a specified data type for the `Ordering` attribute rather
>> than an arbitrary `Text` value, and provide a documented wrapper
>> in `Data.GraphViz.Attributes`.
>> - `Bb` has been renamed `BoundingBox`.
>> - `ID` now only takes `EscString` (a type alias for `Text`) values
>> rather than arbitrary `Label`s.
>> - The `Data.GraphViz.Attributes.HTML` module has had all values
>> re-named and is now meant to be imported qualified. It is also
>> no longer re-exported from `Data.GraphViz.Attributes.Complete`.
>> * The `ToGraphID` class provides a common wrapper to help create
>> cluster identifiers, etc.
>> * Cabal's `Test-Suite` functionality is now used. As part of this,
>> the `Data.GraphViz.Testing` module and sub-modules are no longer
>> exported by the library.
>> * The new `Benchmark` support in Cabal-1.14 is now used for the
>> benchmark script.
>> * Dropped support for base-3.
>> * The `Data.GraphViz.State` module is no longer exposed, as there's no
>> need for users to use it.
>> * Bugfixes:
>> - Some corner cases in canonicalisation prevented it from being
>> - The `TestParsing` script will no longer crash and refuse to
>> continue if an IO-based error (e.g. unable to successfully call
>> `dot`) occurs.
>> - A typo was spotted by **Gabor Greif**.
>> Ivan Lazar Miljenovic
>> Ivan.Miljenovic at gmail.com
> Ivan Lazar Miljenovic
> Ivan.Miljenovic at gmail.com
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