OSGeo - User contributions [en]

Archaeology

2006-09-28T22:07:51Z

Wiki-Leifuss: /* Groups */

A special interest group for archaeology would help develop both archaeology's use of open source GIS and develop archaeology's use of GIS. The latter would be helped by using open source tools that could be adapted to deal with the special requirements of archaeology GIS, in stark contrast to the proprietary tools commonly used.

===Interesting links===
* http://www.iosa.it
** http://list.iosa.it International Mailing List
* http://www.arc-team.com Creators of the first GNU/Linux distribution for archaeology
* http://www.archeogr.unisi.it/asiaa
* http://www.bajr.org/bajrresources/Software.asp
* http://www.online-archaeology.co.uk
* http://www.perseus.tufts.edu/
* http://www.maparch.com

===Archaeology-Focussed GIS Blogs===
* http://www.gisarch.com/
* http://www.alexandriaarchive.org/blog/
* http://www.pastthinking.com/
* http://archaeogeek.wordpress.com/
* http://www.online-archaeology.co.uk/wordpress/

===Open Source Persuaders===
* http://digifreedom.net/

===Groups===
[[Mapping The Past]] - (OSGeo Arch. Sig) Theory Group discussing the practice of mapping history

===Sign up here!===
* [[user:chrisputtick]]
* [[User:Steko|Steko]]
* [[user:Leifuss]]
* [[user:JoCook]]
* [[user:Davidjlock]]
* [[user:Stuarteve]]
* [[user:mharris]]
* [[user:SteveW]]
* [[user::andrewlarcombe]]
* [[user::vera]]

Archaeology

2006-09-28T22:07:06Z

Wiki-Leifuss: /* Groups */

A special interest group for archaeology would help develop both archaeology's use of open source GIS and develop archaeology's use of GIS. The latter would be helped by using open source tools that could be adapted to deal with the special requirements of archaeology GIS, in stark contrast to the proprietary tools commonly used.

===Interesting links===
* http://www.iosa.it
** http://list.iosa.it International Mailing List
* http://www.arc-team.com Creators of the first GNU/Linux distribution for archaeology
* http://www.archeogr.unisi.it/asiaa
* http://www.bajr.org/bajrresources/Software.asp
* http://www.online-archaeology.co.uk
* http://www.perseus.tufts.edu/
* http://www.maparch.com

===Archaeology-Focussed GIS Blogs===
* http://www.gisarch.com/
* http://www.alexandriaarchive.org/blog/
* http://www.pastthinking.com/
* http://archaeogeek.wordpress.com/
* http://www.online-archaeology.co.uk/wordpress/

===Open Source Persuaders===
* http://digifreedom.net/

===Groups===
[[Mapping The Past]] - Theory Group discussing the practice of mapping history

===Sign up here!===
* [[user:chrisputtick]]
* [[User:Steko|Steko]]
* [[user:Leifuss]]
* [[user:JoCook]]
* [[user:Davidjlock]]
* [[user:Stuarteve]]
* [[user:mharris]]
* [[user:SteveW]]
* [[user::andrewlarcombe]]
* [[user::vera]]

Archaeology

2006-09-28T22:05:59Z

Wiki-Leifuss: /* Groups */

A special interest group for archaeology would help develop both archaeology's use of open source GIS and develop archaeology's use of GIS. The latter would be helped by using open source tools that could be adapted to deal with the special requirements of archaeology GIS, in stark contrast to the proprietary tools commonly used.

===Interesting links===
* http://www.iosa.it
** http://list.iosa.it International Mailing List
* http://www.arc-team.com Creators of the first GNU/Linux distribution for archaeology
* http://www.archeogr.unisi.it/asiaa
* http://www.bajr.org/bajrresources/Software.asp
* http://www.online-archaeology.co.uk
* http://www.perseus.tufts.edu/
* http://www.maparch.com

===Archaeology-Focussed GIS Blogs===
* http://www.gisarch.com/
* http://www.alexandriaarchive.org/blog/
* http://www.pastthinking.com/
* http://archaeogeek.wordpress.com/
* http://www.online-archaeology.co.uk/wordpress/

===Open Source Persuaders===
* http://digifreedom.net/

===Groups===
[[Mapping The Past]]

===Sign up here!===
* [[user:chrisputtick]]
* [[User:Steko|Steko]]
* [[user:Leifuss]]
* [[user:JoCook]]
* [[user:Davidjlock]]
* [[user:Stuarteve]]
* [[user:mharris]]
* [[user:SteveW]]
* [[user::andrewlarcombe]]
* [[user::vera]]

Talk:Past Mapping Periodic Table

2006-09-28T22:00:44Z

Wiki-Leifuss:

Should we add a sample picture to each map to give a better indication of what information it is intended to convey?--[[User:Leifuss|Leifuss]] 00:00, 29 September 2006 (CEST)

Past Mapping Periodic Table

2006-09-28T21:59:28Z

Wiki-Leifuss:

This discussion is about the different ways in which we map the past.

As we all know, every map is a conceptual conceit in which certain aspects of reality are distorted in order to better represent other ones. This is particularly the case in past mapping where often the data that we are dealing with is extremely limited whilst we are (generally) forced by the 'total' nature of spatial representation to give a 'complete' picture. The now common use of multiple layers within a GIS which may have been derived from entirely different contexts only adds to the danger that assumptions may be made, and conclusions drawn that cannot, and were never intended to be, supported by the data.

It is hoped that by listing, and then comparing, the different kinds of information we map, it is possible to build up a kind of family or 'periodic table' of techniqiues which we can then use to appraise the manner in which we undertake these tasks, as well as the ways in which we can meaningfully compare and analyze them. In all cases the point of criteria by which we can distinguish different types of data is "what would it mean for this map to be correct?". i.e. on the assumption that all maps distort elements which are not the primary focus of the map, what ''must'' remain undistorted in order to maintain a 'correct' past map?

To use the technical jargon of ''sufficiency'' and ''necessity'', the map is accurate if and only if (iff) ''x''.
''
The headings below are intended to generate discussion are not (yet) exhaustive or mutually exclusive. Some of the headings will almost certainly correspond to 'clusters' within the table.''

'''Present Maps'''

In one sense, present mapping is past mapping also, for there is always an intervening period between an observation and its record.
However, present maps are accurate '''iff''' ''a survey carried out now would correspond to the depiction on the map'' where 'depiction' is shorthand for the representative framework used by the cartographer.
In other words, Present Maps can suffer ontological obsolesence (i.e. due to changes in the world). Past Maps can only suffer from epistemic obsolesence (i.e. due to changes in our knowledge).

'''Past Maps'''

* Old Present Maps
As mentioned above, all Present Maps suffer from virtually instantaneous obsolesence unless continuously maintained. That makes them useful as 'snapshots' of the past, as long as they can be dated accurately. The map is correct '''iff''' ''the world corresponded to the depiction on the map at the given time''.

* Location maps (known points)

* Location maps (known lines)

* Location maps (known polygons)

* Hard boundaries

* Soft boundaries

* 'Natural' variables

* 'Modern' concepts (eg Caucasians?)

* 'Ancient concepts (eg Barbarians?)

* Predictive Modelling

* Viewshed Analysis

* Network Analysis

* Choropleth mapping

* Topological maps/data

* Hodological space

* Universal accuracy (accuracy to an overall framework)

* Local accuracy ( accuracy with regard to eg nearest neighbour)

* Framework accuracy (correspondence of framework to real world)

* Descriptive space(?) (eg Pliny/Strabo etc)

Past Mapping Periodic Table

2006-09-28T21:25:37Z

Wiki-Leifuss:

Mapping The Past

2006-09-28T20:39:36Z

Wiki-Leifuss:

This page is the beginnings of a discussion forum on using geospatial technologies to map the past. It starts from the observation that mapping past landscapes is unlike mapping the future (which is predictive or prescriptive), or the present (which is descriptive and verifiable).

In fact, it is remarkably difficult to state plainly what past mapping is intended to do, other than 'reflect the past', because it is hard to define criteria by which the 'correctness' of a map can be ascertained. This is not merely due to the truism that it is impossible to verify things for which one has no data, but also because the variety of different kinds of information which maps try to convey, combined with the 'total' nature of spatial representation, mean that few past maps will be 'correct' in anything but the most limited of senses.

The general function of this Theory Group is to further explore just what we are intending to do when mapping the past and create a future agenda by which appropriate techniques and technologies can be created by the community in order to better undertake them. We will start with an approximate agenda (outlined below) but, being a wiki, all contributors are welcome to add content to any of the debates at any time.

The initial discussion is intended to try and create a 'periodic table' of past mapping techniques. This is not a catalogue of things that we map (eg geology, roads, extents of empire, etc) but an attempt to cluster those things into ontological categories. When and how do we map snapshots? Changes? Inferences? Facts? Predictions? and so on.

The second discussion will be to ask how well current (especially Open) software and techniques are able to cope with these different aspects of spatial information.

The third discussion will attempt to establish a future agenda to work on new software and methodologies where required.

It is hoped that the discusion will also lead to a colloquium in which these matters can be debated with a wider public.

* [[Past Mapping Periodic Table]]

* [[Past Mapping Software and Methodologies]]

* [[Past Mapping Future]]

[[Image:Routes.jpg |Autogenerated map of known Roman itineraries through Baetica (Andalucia, Spain)]]

Mapping The Past

2006-09-28T20:38:38Z

Wiki-Leifuss:

This page is the beginnings of a discussion forum on using geospatial technologies to map the past. It starts from the observation that mapping past landscapes is unlike mapping the future (which is predictive or prescriptive), or the present (which is descriptive and verifiable).

In fact, it is remarkably difficult to state plainly what past mapping is intended to do, other than 'reflect the past', because it is hard to define criteria by which the 'correctness' of a map can be ascertained. This is not merely due to the truism that it is impossible to verify things for which one has no data, but also because the variety of different kinds of information which maps try to convey, combined, with the 'total' nature of spatial representation mean that few past maps will be 'correct' in anything but the most limited of senses.

The general function of this theory group is to further explore just what we are intending to do when mapping the past and create a future agenda by which appropriate techniques and technologies can be created by the community in order to better undertake them. We will start with an approximate agenda (outlined below) but, being a wiki, all contributors are welcome to add content to any of the debates at any time.

The initial discussion is intended to try and create a 'periodic table' of past mapping techniques. This is not a catalogue of things that we map (eg geology, roads, extents of empire, etc) but an attempt to cluster those things into ontological categories. When and how do we map snapshots? Changes? Inferences? Facts? Predictions? and so on.

The second discussion will be to ask how well current (especially Open) software and techniques are able to cope with these different aspects of spatial information.

The third discussion will attempt to establish a future agenda to work on new software and methodologies where required.

It is hoped that the discusion will also lead to a colloquium in which these matters can be debated with a wider public.

* [[Past Mapping Periodic Table]]

* [[Past Mapping Software and Methodologies]]

* [[Past Mapping Future]]

[[Image:Routes.jpg |Autogenerated map of known Roman itineraries through Baetica (Andalucia, Spain)]]

Mapping The Past

2006-09-28T20:37:48Z

Wiki-Leifuss:

This page is the beginnings of a discussion forum on using geospatial technologies to map the past. It starts from the observation that mapping past landscapes is unlike mapping the future (which is predictive or prescriptive), or the present (which is descriptive and verifiable).

In fact, it is remarkably difficult to state plainly what past mapping is, other than 'reflecting the past' because it is hard to define criteria by which the 'correctness' of a map can be ascertained. This is not merely due to the truism that it is impossible to verify things for which one has no data, but also because the variety of different kinds of information which maps try to convey, combined, with the 'total' nature of spatial representation mean that few past maps will be 'correct' in anything but the most limited of senses.

The general function of this theory group is to further explore just what we are intending to do when mapping the past and create a future agenda by which appropriate techniques and technologies can be created by the community in order to better undertake them. We will start with an approximate agenda (outlined below) but, being a wiki, all contributors are welcome to add content to any of the debates at any time.

The initial discussion is intended to try and create a 'periodic table' of past mapping techniques. This is not a catalogue of things that we map (eg geology, roads, extents of empire, etc) but an attempt to cluster those things into ontological categories. When and how do we map snapshots? Changes? Inferences? Facts? Predictions? and so on.

The second discussion will be to ask how well current (especially Open) software and techniques are able to cope with these different aspects of spatial information.

The third discussion will attempt to establish a future agenda to work on new software and methodologies where required.

It is hoped that the discusion will also lead to a colloquium in which these matters can be debated with a wider public.

* [[Past Mapping Periodic Table]]

* [[Past Mapping Software and Methodologies]]

* [[Past Mapping Future]]

[[Image:Routes.jpg |Autogenerated map of known Roman itineraries through Baetica (Andalucia, Spain)]]

File:Routes.jpg

2006-09-28T20:34:02Z

Wiki-Leifuss: map of itineraries in Roman Baetica

map of itineraries in Roman Baetica

Mapping The Past

2006-09-28T20:30:44Z

Wiki-Leifuss:

This page is the beginnings of a discussion forum on using geospatial technologies to map the past. It starts from the observation that mapping past landscapes is unlike mapping the future (which is predictive or prescriptive), or the present (which is descriptive and verifiable).

In fact, it is remarkably difficult to state plainly what past mapping is, other than 'reflecting the past' because it is hard to define criteria by which the 'correctness' of a map can be ascertained. This is not merely due to the truism that it is impossible to verify things for which one has no data, but also because the variety of different kinds of information which maps try to convey, combined, with the 'total' nature of spatial representation mean that few past maps will be 'correct' in anything but the most limited of senses.

The general function of this theory group is to further explore just what we are intending to do when mapping the past and create a future agenda by which appropriate techniques and technologies can be created by the community in order to better undertake them. We will start with an approximate agenda (outlined below) but, being a wiki, all contributors are welcome to add content to any of the debates at any time.

[[Image:routes.png]]

The initial discussion is intended to try and create a 'periodic table' of past mapping techniques. This is not a catalogue of things that we map (eg geology, roads, extents of empire, etc) but an attempt to cluster those things into ontological categories. When and how do we map snapshots? Changes? Inferences? Facts? Predictions? and so on.

The second discussion will be to ask how well current (especially Open) software and techniques are able to cope with these different aspects of spatial information.

The third discussion will attempt to establish a future agenda to work on new software and methodologies where required.

It is hoped that the discusion will also lead to a colloquium in which these matters can be debated with a wider public.

* [[Past Mapping Periodic Table]]

* [[Past Mapping Software and Methodologies]]

* [[Past Mapping Future]]

Archaeology

2006-09-28T19:18:18Z

Wiki-Leifuss:

A special interest group for archaeology would help develop both archaeology's use of open source GIS and develop archaeology's use of GIS. The latter would be helped by using open source tools that could be adapted to deal with the special requirements of archaeology GIS, in stark contrast to the proprietary tools commonly used.

===Interesting links===
* http://www.iosa.it
** http://list.iosa.it International Mailing List
* http://www.arc-team.com Creators of the first GNU/Linux distribution for archaeology
* http://www.archeogr.unisi.it/asiaa
* http://www.bajr.org/bajrresources/Software.asp
* http://www.online-archaeology.co.uk
* http://www.perseus.tufts.edu/
* http://www.maparch.com

===Archaelogy-Focussed GIS Blogs===
* http://www.gisarch.com/
* http://www.alexandriaarchive.org/blog/
* http://www.pastthinking.com/
* http://archaeogeek.wordpress.com/
* http://www.online-archaeology.co.uk/Blog/tabid/94/Default.aspx

===Open Source Persuaders===
* http://digifreedom.net/

===Groups===
[[Mapping The Past]]

'''Sign up here!'''
* [[user:chrisputtick]]
* [[User:Steko|Steko]]
* [[user:Leifuss]]
* [[user:JoCook]]
* [[user:Davidjlock]]
* [[user:Stuarteve]]
* [[user:mharris]]
* [[user:SteveW]]
* [[user::andrewlarcombe]]
* [[user::vera]]

Archaeology

2006-09-28T19:17:05Z

Wiki-Leifuss:

A special interest group for archaeology would help develop both archaeology's use of open source GIS and develop archaeology's use of GIS. The latter would be helped by using open source tools that could be adapted to deal with the special requirements of archaeology GIS, in stark contrast to the proprietary tools commonly used.

===Interesting links===
* http://www.iosa.it
** http://list.iosa.it International Mailing List
* http://www.arc-team.com Creators of the first GNU/Linux distribution for archaeology
* http://www.archeogr.unisi.it/asiaa
* http://www.bajr.org/bajrresources/Software.asp
* http://www.online-archaeology.co.uk
* http://www.perseus.tufts.edu/
* http://www.maparch.com

===Archaelogy-Focussed GIS Blogs===
* http://www.gisarch.com/
* http://www.alexandriaarchive.org/blog/
* http://www.pastthinking.com/
* http://archaeogeek.wordpress.com/
* http://www.online-archaeology.co.uk/Blog/tabid/94/Default.aspx

===Open Source Persuaders===
* http://digifreedom.net/

===Groups===
[[Archaeology Spatial Theory]]

'''Sign up here!'''
* [[user:chrisputtick]]
* [[User:Steko|Steko]]
* [[user:Leifuss]]
* [[user:JoCook]]
* [[user:Davidjlock]]
* [[user:Stuarteve]]
* [[user:mharris]]
* [[user:SteveW]]
* [[user::andrewlarcombe]]
* [[user::vera]]

Archaeology

2006-09-20T15:55:41Z

Wiki-Leifuss: /* Interesting links */

A special interest group for archaeology would help develop both archaeology's use of open source GIS and develop archaeology's use of GIS. The latter would be helped by using open source tools that could be adapted to deal with the special requirements of archaeology GIS, in stark contrast to the proprietary tools commonly used.

===Interesting links===
* http://www.iosa.it
** http://list.iosa.it International Mailing List
* http://www.arc-team.com Creators of the first GNU/Linux distribution for archaeology
* http://www.archeogr.unisi.it/asiaa
* http://www.bajr.org/bajrresources/Software.asp
* http://www.online-archaeology.co.uk
* http://www.perseus.tufts.edu/

===Archaelogy-Focussed GIS Blogs===
* http://www.gisarch.com/
* http://www.alexandriaarchive.org/blog/
* http://www.pastthinking.com/
* http://archaeogeek.wordpress.com/

'''Sign up here!'''
* [[user:chrisputtick]]
* [[User:Steko|Steko]]
* [[user:Leifuss]]
* [[user:JoCook]]
* [[user:Davidjlock]]
* [[user:Stuarteve]]
* [[user:mharris]]

United Kingdom

2006-09-20T09:08:04Z

Wiki-Leifuss:

Sign up here to show interest!

[[user:Chrisputtick]]

Yes, definitely worth doing

[[user:JoCook]]

woohoo!
[[user:Leifuss]]

Archaeology

2006-09-19T12:02:30Z

Wiki-Leifuss: /* Interesting links */

User:Leifuss

2006-09-19T11:58:44Z

Wiki-Leifuss:

Hi there, interested third party.

I'm a GISer-cum-coder at Oxford Archaeology, tickled by the challenge of making spatial analysis and presentation possible for everyone, everywhere. Beyond that, I'm mainly in it for the beer ;-)