Re: [JPP-Devel] Error with Map coloring plugin

2014-10-05 Thread Larry Reeder
Hey Jukka,

It might be possible to detect that less than 5 polygons are touching at a
point and treat that particular area as through the features were adjacent
to get the behavior in the 0.4 version of the plugin.  However, it would
 complicate the code quite a bit and slow it down.

Regarding packaging the plugin into a libfolder in
lib\ext\ojmapcoloring-0.5,   I used to do that with the DB Query plugin,
and prefer it also, but recent versions of OJ don't load plugins unless
they are in the lib\ext directory.  I'm using Linux
 OpenJUMP-1.6.1-r3501-PLUS to test.   Maybe the Windows versions behave
differently?

 -lreeder


On Sun, Sep 28, 2014 at 2:41 AM, Rahkonen Jukka (Tike) 
jukka.rahko...@mmmtike.fi wrote:

  Hi Larry,



 Version 0.5 colors now all the Finnish municipalities and all the
 multi-slice pizzas which I digitized fine. However, I think that when there
 are at maximum 5 areas touching on one point the version 0.4 does better
 coloring. The new version may give the same color for areas which touch on
 one point even it would not be necessary. My municipality map seems to be a
 good test dataset because it has a) multipolygons where the parts are
 touching on one point - parts should be painted with the same color and b)
 separate simple polygons touching on one point - would be better to paint
 with different colors if possible.



 If I had to select between 0.4 and 0.5 I think I would select 0.4 because
 of the better coloring result in normal cases.



 I prefer to keep the lib\ext folder a bit more clean by copying only
 ojmapcoloring.jar there and putting the rest of the package into folder
 lib\ext\ojmapcoloring-0.5. Perhaps it is still not worth changing the
 packaging or installation instructions.



 -Jukka Rahkonen-





 Larry Reeder wrote:



 Well, no matter how many times you slice it, a pizza is always (mostly)
 planar :-).  The problem with map coloring occurs when you can't draw a
 line on a plane from a fixed point on all features to a fixed point on
 their adjacent features without the lines crossing.  You have to lift the
 lines off the plane to connect adjacent features, so the adjacency graph
 becomes non-planar.



 I've got a fix for it now, one that doesn't count features touching on a
 point as adjacent.  Give it a try -
 https://sourceforge.net/projects/ojmapcoloring/files/0.5/



 -lreeder



 On Mon, Sep 22, 2014 at 4:09 AM, Rahkonen Jukka (Tike) 
 jukka.rahko...@mmmtike.fi wrote:

 Hi Larry,



 I should have actually guessed what happened. There used to be 8
 municipalies sharing a common landmark but because of some fusions there
 are only 6 left now.

 I tried to find a document that says that pizza is no more planar when it
 is sliced into 6 pieces.  However, I found some documents which define the
 four or five color theorem so that polygons are considered to be adjacent
 if they share an edge, not only a point. This is one of those
 http://www.mathpages.com/home/kmath266/kmath266.htm.





 -Jukka-





 Larry Reeder wrote:



 Hey Jukka,



 Just got a chance to look at this.   The region that is not coloring is
 interesting.




 ​

   It's like a pizza sliced into six pieces, each touching at the point.
 You can't color this portion of the map with only five colors without two
 adjacent (maybe just adjacent at one point in the enter) regions having the
 same color.   In graph-theory terms, the graph is non-planar and can't be
 colored correctly with the five-color theorem.  The map coloring plugin
 detects this and refuses to color this portion of the map.



 From a practical standpoint, you probably don't care that regions touching
 at a single point have the same color, as long as they don't share a color
 along a long edge.   I'll look at updating the plugin to detect this and
 continue coloring.



  -lreeder







 On Mon, Sep 15, 2014 at 7:15 AM, Rahkonen Jukka (Tike) 
 jukka.rahko...@mmmtike.fi wrote:

 Hi,

 I found a shapefile from which some polygons are not colored with the Map
 coloring plugin v. 0.4.  Shapefile does not have topology errors but some
 multipolygons have quite a many parts because of archipelago. However,
 exploding multipolygons into polygons does not change the behaviour. The
 problematic shapefile can be found from
 http://latuviitta.org/downloads/ojmapcolor_error.zip

 Error appears always in the same place in South-West. For example features
 with OGR_FID=180 or 234 stays without color.

 -Jukka Rahkonen-


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Re: [JPP-Devel] Error with Map coloring plugin

2014-10-05 Thread edgar . soldin
On 05.10.2014 16:09, Larry Reeder wrote:
 Regarding packaging the plugin into a libfolder in lib\ext\ojmapcoloring-0.5, 
   I used to do that with the DB Query plugin, and prefer it also, but recent 
 versions of OJ don't load plugins unless they are in the lib\ext directory.  
 I'm using Linux  OpenJUMP-1.6.1-r3501-PLUS to test.   Maybe the Windows 
 versions behave differently?

that's kind of my department as i did the latest changes ;) .. let me shed some 
light on it.

the vision - 
is to have extensions placing one jar (containing the extension class) into 
lib/ext and their libs/files into a subfolder e.g.
lib\ext\ojmapcoloring-0.5.jar
lib\ext\ojmapcoloring-0.5\dependency.jar 
lib\ext\ojmapcoloring-0.5\readme.txt
...
eventually i dream of modifying the plugin loading in a way that concurrent 
library versions in extensions will be possible by using one classloader per 
plugin. therefor the foldernames of course will have to be standardized e.g. 
like above.

the status quo -
to speedup the loading process not all jars recursively are searched for 
extension classes, but only those in lib/ext. but to prepare for the vision and 
also to clean up lib/ext in general it is already possible to package 
extensions like described above.

please try ;).. ede

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[JPP-Devel] Macro recorder for OpenJUMP (work in progress)

2014-10-05 Thread Michael Michaud
Hi Jumpers,

I've started to add a big feature for OJ : capability to record macros.

I did not find a way to implement it without the need to revisit
each plugin, but I tried to adopt a design
- which does not break existing plugins
- where adaptation to make a plugin recordable in a macro is minimal

The general idea is :
- make plugins persistable along with its parameters
- make plugins runnable from a map of parameters (instead of
an interactive dialog box)
To achieve that in a simple way, plugins must be able to store/access
their parameters through a simple MapString,Object

Usually, to make a plugin recordable :
- you must put parameters gathered from a MultiInputDialog into a map
- refactor the code so  that it accepts the map values as parameters
instead of named plugin attributes (see changes in BufferPlugIn)

I have tested the concept with several different tools :
- DisposeSelectedLayerPlugIn
- BufferPlugIn
- ViewSchemaPlugIn
- DataSourceFileLayerLoader
Some are easy to adapt (ex. DisposeSelectedLayerPlugIn), other
are difficult (ex. ViewSchemaPlugIn)

Any comment about the design is welcome
Any help to make all our plugins recordable is welcome

Michaël

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Re: [JPP-Devel] Error with Map coloring plugin

2014-10-05 Thread Rahkonen Jukka (Tike)
Hi ,

I was rather thinking that users could select the v. 0.4 path at their own risk 
for example by checking a box “Disjoint colors” with a tooltip hint “Tries to 
prevent same colors from touching at any point”. But that is not especially 
important feature and I do like simple and fast solutions a lot.

-Jukka Rahkonen-


Larry Reeder wrote:

Hey Jukka,

It might be possible to detect that less than 5 polygons are touching at a 
point and treat that particular area as through the features were adjacent to 
get the behavior in the 0.4 version of the plugin.  However, it would  
complicate the code quite a bit and slow it down.

Regarding packaging the plugin into a libfolder in lib\ext\ojmapcoloring-0.5,   
I used to do that with the DB Query plugin, and prefer it also, but recent 
versions of OJ don't load plugins unless they are in the lib\ext directory.  
I'm using Linux  OpenJUMP-1.6.1-r3501-PLUS to test.   Maybe the Windows 
versions behave differently?

 -lreeder


On Sun, Sep 28, 2014 at 2:41 AM, Rahkonen Jukka (Tike) 
jukka.rahko...@mmmtike.fimailto:jukka.rahko...@mmmtike.fi wrote:
Hi Larry,

Version 0.5 colors now all the Finnish municipalities and all the multi-slice 
pizzas which I digitized fine. However, I think that when there are at maximum 
5 areas touching on one point the version 0.4 does better coloring. The new 
version may give the same color for areas which touch on one point even it 
would not be necessary. My municipality map seems to be a good test dataset 
because it has a) multipolygons where the parts are touching on one point - 
parts should be painted with the same color and b) separate simple polygons 
touching on one point - would be better to paint with different colors if 
possible.

If I had to select between 0.4 and 0.5 I think I would select 0.4 because of 
the better coloring result in normal cases.

I prefer to keep the lib\ext folder a bit more clean by copying only 
ojmapcoloring.jar there and putting the rest of the package into folder 
lib\ext\ojmapcoloring-0.5. Perhaps it is still not worth changing the packaging 
or installation instructions.

-Jukka Rahkonen-


Larry Reeder wrote:

Well, no matter how many times you slice it, a pizza is always (mostly) planar 
:-).  The problem with map coloring occurs when you can't draw a line on a 
plane from a fixed point on all features to a fixed point on their adjacent 
features without the lines crossing.  You have to lift the lines off the plane 
to connect adjacent features, so the adjacency graph becomes non-planar.

I've got a fix for it now, one that doesn't count features touching on a point 
as adjacent.  Give it a try - 
https://sourceforge.net/projects/ojmapcoloring/files/0.5/

-lreeder

On Mon, Sep 22, 2014 at 4:09 AM, Rahkonen Jukka (Tike) 
jukka.rahko...@mmmtike.fimailto:jukka.rahko...@mmmtike.fi wrote:
Hi Larry,

I should have actually guessed what happened. There used to be 8 municipalies 
sharing a common landmark but because of some fusions there are only 6 left now.
I tried to find a document that says that pizza is no more planar when it is 
sliced into 6 pieces.  However, I found some documents which define the four or 
five color theorem so that polygons are considered to be adjacent if they share 
an edge, not only a point. This is one of those 
http://www.mathpages.com/home/kmath266/kmath266.htm.


-Jukka-


Larry Reeder wrote:

Hey Jukka,

Just got a chance to look at this.   The region that is not coloring is 
interesting.

[cid:image001.jpg@01CFE0D1.B3C87800]
​
  It's like a pizza sliced into six pieces, each touching at the point.   You 
can't color this portion of the map with only five colors without two adjacent 
(maybe just adjacent at one point in the enter) regions having the same color.  
 In graph-theory terms, the graph is non-planar and can't be colored 
correctly with the five-color theorem.  The map coloring plugin detects this 
and refuses to color this portion of the map.

From a practical standpoint, you probably don't care that regions touching at a 
single point have the same color, as long as they don't share a color along a 
long edge.   I'll look at updating the plugin to detect this and continue 
coloring.

 -lreeder



On Mon, Sep 15, 2014 at 7:15 AM, Rahkonen Jukka (Tike) 
jukka.rahko...@mmmtike.fimailto:jukka.rahko...@mmmtike.fi wrote:
Hi,

I found a shapefile from which some polygons are not colored with the Map 
coloring plugin v. 0.4.  Shapefile does not have topology errors but some 
multipolygons have quite a many parts because of archipelago. However, 
exploding multipolygons into polygons does not change the behaviour. The 
problematic shapefile can be found from 
http://latuviitta.org/downloads/ojmapcolor_error.zip

Error appears always in the same place in South-West. For example features with 
OGR_FID=180 or 234 stays without color.

-Jukka Rahkonen-

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Re: [JPP-Devel] Macro recorder for OpenJUMP (work in progress)

2014-10-05 Thread edgar . soldin
On 05.10.2014 17:57, Michael Michaud wrote:
 Hi Jumpers,
 
 I've started to add a big feature for OJ : capability to record macros.

that's really a nice feature! i like it..

without looking at the implementation details (you explained it pretty good), 
here some questions remarks. first and most important question:

are all non-interactive (dialogless) recordable now out of the box?

 I did not find a way to implement it without the need to revisit
 each plugin, but I tried to adopt a design
 - which does not break existing plugins
 - where adaptation to make a plugin recordable in a macro is minimal

what happens when during macro recording and a non-recordable plugin is 
executed?
 
 The general idea is :
 - make plugins persistable along with its parameters
 - make plugins runnable from a map of parameters (instead of
 an interactive dialog box)
 To achieve that in a simple way, plugins must be able to store/access
 their parameters through a simple MapString,Object
 
 Usually, to make a plugin recordable :
 - you must put parameters gathered from a MultiInputDialog into a map
 - refactor the code so  that it accepts the map values as parameters
 instead of named plugin attributes (see changes in BufferPlugIn)
 
 I have tested the concept with several different tools :
 - DisposeSelectedLayerPlugIn
 - BufferPlugIn
 - ViewSchemaPlugIn
 - DataSourceFileLayerLoader
 Some are easy to adapt (ex. DisposeSelectedLayerPlugIn), other
 are difficult (ex. ViewSchemaPlugIn)

i am pretty sure you had a specific use case in mind. could you post a simple 
step-by-step list of it that would illustrate a workflow that profits from 
automating?
 
 Any comment about the design is welcome
 Any help to make all our plugins recordable is welcome

that's my main issue with your approach. 
A. who is going to make at least most of our plugins recordable? shouldn't 
there be a mode where interactive plugins are allowed and come up with their 
respective dialog during automation?
B. our non-interactive plugins (e.g. Copy,Cut,Paste..) should be enabled by 
default, if they are not already by your current implementation.
C. users will assume that they can record _any: workflow when they use this 
feature, not just some enabled plugins. if we'd go down this road we should 
disable (via the Enabled interface) plugins that are not automatable during 
recording.

one implementation for C. could be a Plugin wrapper, that implements the Plugin 
interface and is instantiated given the original plugin. as _all_ our plugins 
are now installed via one routine we could easily wrap each plugin in this 
RecordableCheckedPlugin one during the startup.

RecordableCheckedPlugin could then implement
- an additional EnabledCheck which is enabled during recording and de/activates 
the plugin according to it's implemented interface.
.

just some quick thoughts ;).. ede

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Re: [JPP-Devel] OJ Wiki

2014-10-05 Thread Rahkonen Jukka (Tike)
Hi Ede,

Edit seems to be possible now, thanks.

-Jukka-

 -Alkuperäinen viesti-
 Lähettäjä: edgar.sol...@web.de [mailto:edgar.sol...@web.de]
 Lähetetty: 2. lokakuuta 2014 19:29
 Vastaanottaja: OpenJump develop and use
 Aihe: Re: [JPP-Devel] OJ Wiki
 
 please retry.. ede
 
 On 01.10.2014 14:41, Rahkonen Jukka (Tike) wrote:
  Hi Ede,
 
  I would like to make some updates to wiki.  I can log in with my account but
 not edit.
 
  -Jukka-
 
  edgar soldin wrote:
 
  hmm.. it should be write protected as i didn't find the time or
  energy to setup user mgmt so far ;(.. ede
 
  On 13.09.2014 19:39, Michael Michaud wrote:
  I got it,
 
  Just received my temporary password,
 
  Michaël
  Hi Ede,
 
  I've been unable to get write access to the new wiki.
  Can you give me a hint ?
  Should I create a new account (I could not)
 
  Thanks,
 
  Michaël
  no. you are free to familiarize yourself with these platforms and to do 
  so.
  afaics the swing ui and feature rich desktop approach of OJ will
  probably make any port as such unfeasible.
 
  ..ede
 
  On 15.07.2014 14:45, sukhjit sehra wrote:
  Any body working on conceptualization of Open Jump on to Mobile
  devices such as android/ios
 
  thanks
 
 
  On Sun, Jul 13, 2014 at 8:49 PM, edgar.sol...@web.de
  mailto:edgar.sol...@web.de wrote:
 
the wiki is online again. you can follow the links on
 http://openjump.org
.
 
for now there is no registration or editing. that will come
  in a next step,
  as users will have to reregister and i have the permissions not
  properly set up so far.
 
the webspace is located in germany and should be
  sufficiently
  responsive and fast from all over the world.
 
here are the reasons why i ended up there:
 
why not sf.net http://sf.net?
 
because my other much smaller wiki is disastrously slow.
  the pages
  need several seconds most of the time, sometimes even longer.
  especially when you try to edit something ending up with timeouts is a deal
 breaker.
 
other 'free' mediawiki hosters?
 
i had a look around. but it already started with me having
  the old wiki in
  form of an sql dump and the files in an archive. this is simply not
  the format these services allow to import. they prefer an xml export,
  that unfortunately omits all image files.
the same issue would have hit us when moving from one
  hoster to
  another. there are scripts avail to export mediawiki via API calls
  and web access, but that was something i definitely didn't wanted to invest
 effort in.
 
so far, so jumpy.. ede
 

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Re: [JPP-Devel] Macro recorder for OpenJUMP (work in progress)

2014-10-05 Thread Michael Michaud
Hi Ede,

Thanks for the feed-back
 On 05.10.2014 17:57, Michael Michaud wrote:
 Hi Jumpers,

 I've started to add a big feature for OJ : capability to record macros.
 that's really a nice feature! i like it..

 without looking at the implementation details (you explained it pretty good), 
 here some questions remarks. first and most important question:

 are all non-interactive (dialogless) recordable now out of the box?
Absolutely not.
When there is no dialog the adaptation is minimal (ex. 
DisposeSelectedLayerPlugIn).
Don't know if it can be reduced to nothing by adding some code in 
AbsractPlugIn
but the problem is that plugins with or without dialog have the same 
interface.

 I did not find a way to implement it without the need to revisit
 each plugin, but I tried to adopt a design
 - which does not break existing plugins
 - where adaptation to make a plugin recordable in a macro is minimal
 what happens when during macro recording and a non-recordable plugin is 
 executed?
Just ignored.
Until I add a piece of code at the end of plugin execution, the action 
is executed as before,
but not added to the macro.

 The general idea is :
 - make plugins persistable along with its parameters
 - make plugins runnable from a map of parameters (instead of
 an interactive dialog box)
 To achieve that in a simple way, plugins must be able to store/access
 their parameters through a simple MapString,Object

 Usually, to make a plugin recordable :
 - you must put parameters gathered from a MultiInputDialog into a map
 - refactor the code so  that it accepts the map values as parameters
 instead of named plugin attributes (see changes in BufferPlugIn)

 I have tested the concept with several different tools :
 - DisposeSelectedLayerPlugIn
 - BufferPlugIn
 - ViewSchemaPlugIn
 - DataSourceFileLayerLoader
 Some are easy to adapt (ex. DisposeSelectedLayerPlugIn), other
 are difficult (ex. ViewSchemaPlugIn)
 i am pretty sure you had a specific use case in mind. could you post a simple 
 step-by-step list of it that would illustrate a workflow that profits from 
 automating?
Not precisely. I know that OpenJUMP is efficient for prototyping or to do
one shot production, but that it has limitations to do repetitive tasks in a
production environment. :
Exemple (fictive)
- get a dataset from a partner
- tansform the schema
- join the data with our own data to keep data of interest only
- save or upload to a database

   
 Any comment about the design is welcome
 Any help to make all our plugins recordable is welcome
 that's my main issue with your approach.
 A. who is going to make at least most of our plugins recordable? shouldn't 
 there be a mode where interactive plugins are allowed and come up with their 
 respective dialog during automation?
There is a lot of work to make all plugins recordable but it can be done 
progressively.
I would have liked to find a way to make plugins recordable all at one 
time but there
is a great variety of implementations, and it seems difficult to me. For 
example, it
took me several hours to find where to implement my piece of code to 
make open
this shapefile recordable in a macro (not in a plugin).

Interesting question about mixing macro and dialog. From my point of 
view, macro
should not open dialog, but I can imagine particular cases where a 
dialog is needed.
It would add much complexity though.

 B. our non-interactive plugins (e.g. Copy,Cut,Paste..) should be enabled by 
 default, if they are not already by your current implementation.
I'll give more thought about it. Not sure that you can implement 
something working for these plugins
without interfering with other plugins as execute() may either
- do an action or
- open a dialog
I think if we implement a general method for non-interactive plugin (ex 
in AbstractPlugIn)
the side effect will be that dialog-based plugins will also be recorded 
and executed by opening
their dialog within a macro.
This behaviour maybe acceptable, and maybe easy to fix through a new 
abstract class or
interface to differenciate different kinds of plugins.
 C. users will assume that they can record _any: workflow when they use this 
 feature, not just some enabled plugins. if we'd go down this road we should 
 disable (via the Enabled interface) plugins that are not automatable during 
 recording.
Good point
 one implementation for C. could be a Plugin wrapper, that implements the 
 Plugin interface and is instantiated given the original plugin. as _all_ our 
 plugins are now installed via one routine we could easily wrap each plugin in 
 this RecordableCheckedPlugin one during the startup.

 RecordableCheckedPlugin could then implement
 - an additional EnabledCheck which is enabled during recording and 
 de/activates the plugin according to it's implemented interface.
Seems a good idea. Plugins should explicitely inherit their parent's 
EnabledCheck in this case.
It would also need to check-up/update all plugins or did I misses the 
point ?
 just