InfoVis:Wiki - User contributions [en]

Talk:Hyperbolic trees

2006-06-20T15:41:02Z

UE-InfoVis06-11:

- minor problems are corrected now (picture link is now correct and the second "references" has been deleted)

Hyperbolic trees

2006-04-27T20:58:34Z

UE-InfoVis06-11:

== Authors ==
*[[Lamping, John|John Lamping]]
*[[Rao, Ramana|Ramana Rao]]
*[[Pirolli, Peter|Peter Pirolli]]

== Short Description ==
{{Quotation|[...]The essence of this scheme is to lay out the hierarchy in a uniform way on a hyperbolic plane and map this plane onto a circular display region. This supports a smooth blending between focus and context, as well as continuous redirection of the focus[...] Two salient properties of the figures are: First that components diminish in size as they move outwards, and second that there is an exponential growth in the number of components. These properties - "fisheye" distortion and the ability to uniformly embed an exponentially growing structure - are the aspects of this construction. [...]| [John Lamping et al., 1995]}}

== Suitable Datatypes ==
This visualization method can be used on hierarchies. With its characteristics the method is especially suitable for the visualization and manipulation of large hierachical data.

== Figures ==

The [http://www.mcescher.com/Gallery/recogn-bmp/LW436.jpg Circle Limit IV 1960 woodcut in black and ocre], printed from 2 blocks by [http://www.mcescher.com Maurits Cornelis Escher] (1898-1972) was the original inspiration for the hyperbolic browser.

The hyperbolic browser shows a tree of hierarchical information with its root initially in the center, but the display can be transformed to bring other nodes into focus.
The following figure shows an original hyperbolic tree with its origin in the center and 1004 nodes:

[[Image:Hyptree original.jpg]]

The origin does not have to be in the center of the fisheye as written above. The focus can be changed by the user either by clicking on any visible point to bring it into focus at the center or by dragging any visble point interactively to any other position:

[[Image:HypTree changinfocus.jpg]]

== Examples and use cases == [Image:Roget2000.jpg|thumb|Visualization of Roget Thesaurus using the IV XML Toolkit. ]]

Hyperbolic trees are often used to display webinformation. Therefore hyperbolic browsers were developed which support effective interaction with much lager hierarchies than conventional hierarchy viewers and complements the strengths of other novel tree browsers.

'''Comparison:'''

If you have a window of 600x600px a standard 2d-hierarchy browser can usually display 100 with 3 character text strings. The hyperbolic browser can display 1000 nodes in this area and about the 50 nearest to the focus can display from 3 up to dozens of characters of text.

So the big advantage of hyperbolic tree browsers is the possibility to display a big amount of hierarchical information within a small space without a loss of focus and context.

[[Image:Roget2000.jpg|thumb|Visualization of Roget Thesaurus using the IV XML Toolkit. ]]

*[http://www.inxight.com/products/sdks/st/ Inxight StarTree]
*[http://www.psych.uni-goettingen.de/congress/gor-2001/contrib/noller-stephan-poster GOR2001 - content]
*[http://ucjeps.berkeley.edu/map2.html Hyperbolic Tree Demonstration from Deep Green Research Tree]

== References ==
[Lamping, et al., 1995] John Lamping, Ramana Rao, Peter Pirolli, A Focus+Context Technique Based on Hyperbolic Geometry for Visualizing Large Hierarchies, Xerox Palo Alto Research Center, Last Retrieved at: April 27, 2006. http://www.acm.org/sigchi/chi95/Electronic/documnts/papers/jl_bdy.htm

[edit]
3 References

[[Category:Techniques]]

File:Roget2000.jpg

2006-04-27T20:56:51Z

UE-InfoVis06-11: Visualization of Roget Thesaurus using the IV XML Toolkit. The image appeared in Jason Baumgartner & Tim Waugh (2002) Roget2000: A 2D hyperbolic tree visualization of Roget’s Thesaurus. Poster accepted for SPIE Conference on Visualization and Data Analy

== Summary ==
Visualization of Roget Thesaurus using the IV XML Toolkit. The image appeared in Jason Baumgartner & Tim Waugh (2002) Roget2000: A 2D hyperbolic tree visualization of Roget’s Thesaurus. Poster accepted for SPIE Conference on Visualization and Data Analysis, January 20-25, 2002, San Jose, CA, USA.
== Copyright status ==

== Source ==
Information Visualization Cyberinfrastructure @ SLIS, Indiana University, http://iv.slis.indiana.edu/sw/hyptree.html

Hyperbolic trees

2006-04-27T20:50:34Z

UE-InfoVis06-11:

== Authors ==
*[[Lamping, John|John Lamping]]
*[[Rao, Ramana|Ramana Rao]]
*[[Pirolli, Peter|Peter Pirolli]]

== Short Description ==
{{Quotation|[...]The essence of this scheme is to lay out the hierarchy in a uniform way on a hyperbolic plane and map this plane onto a circular display region. This supports a smooth blending between focus and context, as well as continuous redirection of the focus[...] Two salient properties of the figures are: First that components diminish in size as they move outwards, and second that there is an exponential growth in the number of components. These properties - "fisheye" distortion and the ability to uniformly embed an exponentially growing structure - are the aspects of this construction. [...]| [John Lamping et al., 1995]}}

== Suitable Datatypes ==
This visualization method can be used on hierarchies. With its characteristics the method is especially suitable for the visualization and manipulation of large hierachical data.

== Figures ==

The [http://www.mcescher.com/Gallery/recogn-bmp/LW436.jpg Circle Limit IV 1960 woodcut in black and ocre], printed from 2 blocks by [http://www.mcescher.com Maurits Cornelis Escher] (1898-1972) was the original inspiration for the hyperbolic browser.

The hyperbolic browser shows a tree of hierarchical information with its root initially in the center, but the display can be transformed to bring other nodes into focus.
The following figure shows an original hyperbolic tree with its origin in the center and 1004 nodes:

[[Image:Hyptree original.jpg]]

The origin does not have to be in the center of the fisheye as written above. The focus can be changed by the user either by clicking on any visible point to bring it into focus at the center or by dragging any visble point interactively to any other position:

[[Image:HypTree changinfocus.jpg]]

== Examples and use cases ==

Hyperbolic trees are often used to display webinformation. Therefore hyperbolic browsers were developed which support effective interaction with much lager hierarchies than conventional hierarchy viewers and complements the strengths of other novel tree browsers.

'''Comparison:'''

If you have a window of 600x600px a standard 2d-hierarchy browser can usually display 100 with 3 character text strings. The hyperbolic browser can display 1000 nodes in this area and about the 50 nearest to the focus can display from 3 up to dozens of characters of text.

So the big advantage of hyperbolic tree browsers is the possibility to display a big amount of hierarchical information within a small space without a loss of focus and context.

*[http://www.inxight.com/products/sdks/st/ Inxight StarTree]
*[http://www.psych.uni-goettingen.de/congress/gor-2001/contrib/noller-stephan-poster GOR2001 - content]
*[http://ucjeps.berkeley.edu/map2.html Hyperbolic Tree Demonstration from Deep Green Research Tree]

== References ==
[Lamping, et al., 1995] John Lamping, Ramana Rao, Peter Pirolli, A Focus+Context Technique Based on Hyperbolic Geometry for Visualizing Large Hierarchies, Xerox Palo Alto Research Center, Last Retrieved at: April 27, 2006. http://www.acm.org/sigchi/chi95/Electronic/documnts/papers/jl_bdy.htm

[edit]
3 References

[[Category:Techniques]]

Hyperbolic trees

2006-04-27T20:50:15Z

UE-InfoVis06-11:

== Authors ==
*[[Lamping, John|John Lamping]]
*[[Rao, Ramana|Ramana Rao]]
*[[Pirolli, Peter|Peter Pirolli]]

== Short Description ==
{{Quotation|[...]The essence of this scheme is to lay out the hierarchy in a uniform way on a hyperbolic plane and map this plane onto a circular display region. This supports a smooth blending between focus and context, as well as continuous redirection of the focus[...] Two salient properties of the figures are: First that components diminish in size as they move outwards, and second that there is an exponential growth in the number of components. These properties - "fisheye" distortion and the ability to uniformly embed an exponentially growing structure - are the aspects of this construction. [...]| [John Lamping et al., 1995]}}

== Suitable Datatypes ==
This visualization method can be used on hierarchies. With its characteristics the method is especially suitable for the visualization and manipulation of large hierachical data.

== Figures ==

The [http://www.mcescher.com/Gallery/recogn-bmp/LW436.jpg Circle Limit IV 1960 woodcut in black and ocre], printed from 2 blocks by [http://www.mcescher.com Maurits Cornelis Escher] (1898-1972) was the original inspiration for the hyperbolic browser.

The hyperbolic browser shows a tree of hierarchical information with its root initially in the center, but the display can be transformed to bring other nodes into focus.
The following figure shows an original hyperbolic tree with its origin in the center and 1004 nodes:

[[Image:Hyptree original.jpg]]

The origin does not have to be in the center of the fisheye as written above. The focus can be changed by the user either by clicking on any visible point to bring it into focus at the center or by dragging any visble point interactively to any other position:

[[Image:HypTree changinfocus.jpg]]

== Examples and use cases ==

Hyperbolic trees are often used to display webinformation. Therefore hyperbolic browsers were developed which support effective interaction with much lager hierarchies than conventional hierarchy viewers and complements the strengths of other novel tree browsers.
'''Comparison:'''

If you have a window of 600x600px a standard 2d-hierarchy browser can usually display 100 with 3 character text strings. The hyperbolic browser can display 1000 nodes in this area and about the 50 nearest to the focus can display from 3 up to dozens of characters of text.

So the big advantage of hyperbolic tree browsers is the possibility to display a big amount of hierarchical information within a small space without a loss of focus and context.

*[http://www.inxight.com/products/sdks/st/ Inxight StarTree]
*[http://www.psych.uni-goettingen.de/congress/gor-2001/contrib/noller-stephan-poster GOR2001 - content]
*[http://ucjeps.berkeley.edu/map2.html Hyperbolic Tree Demonstration from Deep Green Research Tree]

== References ==
[Lamping, et al., 1995] John Lamping, Ramana Rao, Peter Pirolli, A Focus+Context Technique Based on Hyperbolic Geometry for Visualizing Large Hierarchies, Xerox Palo Alto Research Center, Last Retrieved at: April 27, 2006. http://www.acm.org/sigchi/chi95/Electronic/documnts/papers/jl_bdy.htm

[edit]
3 References

[[Category:Techniques]]

Hyperbolic trees

2006-04-27T20:49:37Z

UE-InfoVis06-11:

== Authors ==
*[[Lamping, John|John Lamping]]
*[[Rao, Ramana|Ramana Rao]]
*[[Pirolli, Peter|Peter Pirolli]]

== Short Description ==
{{Quotation|[...]The essence of this scheme is to lay out the hierarchy in a uniform way on a hyperbolic plane and map this plane onto a circular display region. This supports a smooth blending between focus and context, as well as continuous redirection of the focus[...] Two salient properties of the figures are: First that components diminish in size as they move outwards, and second that there is an exponential growth in the number of components. These properties - "fisheye" distortion and the ability to uniformly embed an exponentially growing structure - are the aspects of this construction. [...]| [John Lamping et al., 1995]}}

Hyperbolic trees are often used to display webinformation. Therefore hyperbolic browsers were developed which support effective interaction with much lager hierarchies than conventional hierarchy viewers and complements the strengths of other novel tree browsers.
'''Comparison:'''

If you have a window of 600x600px a standard 2d-hierarchy browser can usually display 100 with 3 character text strings. The hyperbolic browser can display 1000 nodes in this area and about the 50 nearest to the focus can display from 3 up to dozens of characters of text.

So the big advantage of hyperbolic tree browsers is the possibility to display a big amount of hierarchical information within a small space without a loss of focus and context.

== Suitable Datatypes ==
This visualization method can be used on hierarchies. With its characteristics the method is especially suitable for the visualization and manipulation of large hierachical data.

== Figures ==

The [http://www.mcescher.com/Gallery/recogn-bmp/LW436.jpg Circle Limit IV 1960 woodcut in black and ocre], printed from 2 blocks by [http://www.mcescher.com Maurits Cornelis Escher] (1898-1972) was the original inspiration for the hyperbolic browser.

The hyperbolic browser shows a tree of hierarchical information with its root initially in the center, but the display can be transformed to bring other nodes into focus.
The following figure shows an original hyperbolic tree with its origin in the center and 1004 nodes:

[[Image:Hyptree original.jpg]]

The origin does not have to be in the center of the fisheye as written above. The focus can be changed by the user either by clicking on any visible point to bring it into focus at the center or by dragging any visble point interactively to any other position:

[[Image:HypTree changinfocus.jpg]]

== Examples and use cases ==
*[http://www.inxight.com/products/sdks/st/ Inxight StarTree]
*[http://www.psych.uni-goettingen.de/congress/gor-2001/contrib/noller-stephan-poster GOR2001 - content]
*[http://ucjeps.berkeley.edu/map2.html Hyperbolic Tree Demonstration from Deep Green Research Tree]

== References ==
[Lamping, et al., 1995] John Lamping, Ramana Rao, Peter Pirolli, A Focus+Context Technique Based on Hyperbolic Geometry for Visualizing Large Hierarchies, Xerox Palo Alto Research Center, Last Retrieved at: April 27, 2006. http://www.acm.org/sigchi/chi95/Electronic/documnts/papers/jl_bdy.htm

[edit]
3 References

[[Category:Techniques]]

Hyperbolic trees

2006-04-27T20:49:18Z

UE-InfoVis06-11:

== Authors ==
*[[Lamping, John|John Lamping]]
*[[Rao, Ramana|Ramana Rao]]
*[[Pirolli, Peter|Peter Pirolli]]

== Short Description ==
{{Quotation|[...]The essence of this scheme is to lay out the hierarchy in a uniform way on a hyperbolic plane and map this plane onto a circular display region. This supports a smooth blending between focus and context, as well as continuous redirection of the focus[...] Two salient properties of the figures are: First that components diminish in size as they move outwards, and second that there is an exponential growth in the number of components. These properties - "fisheye" distortion and the ability to uniformly embed an exponentially growing structure - are the aspects of this construction. [...]| [John Lamping et al., 1995]}}

Hyperbolic trees are often used to display webinformation. Therefore hyperbolic browsers were developed which support effective interaction with much lager hierarchies than conventional hierarchy viewers and complements the strengths of other novel tree browsers. So the big advantage of hyperbolic tree browsers is the possibility to display a big amount of hierarchical information within a small space without a loss of focus and context.

'''Comparison:'''

If you have a window of 600x600px a standard 2d-hierarchy browser can usually display 100 with 3 character text strings. The hyperbolic browser can display 1000 nodes in this area and about the 50 nearest to the focus can display from 3 up to dozens of characters of text.

== Suitable Datatypes ==
This visualization method can be used on hierarchies. With its characteristics the method is especially suitable for the visualization and manipulation of large hierachical data.

== Figures ==

The [http://www.mcescher.com/Gallery/recogn-bmp/LW436.jpg Circle Limit IV 1960 woodcut in black and ocre], printed from 2 blocks by [http://www.mcescher.com Maurits Cornelis Escher] (1898-1972) was the original inspiration for the hyperbolic browser.

The hyperbolic browser shows a tree of hierarchical information with its root initially in the center, but the display can be transformed to bring other nodes into focus.
The following figure shows an original hyperbolic tree with its origin in the center and 1004 nodes:

[[Image:Hyptree original.jpg]]

The origin does not have to be in the center of the fisheye as written above. The focus can be changed by the user either by clicking on any visible point to bring it into focus at the center or by dragging any visble point interactively to any other position:

[[Image:HypTree changinfocus.jpg]]

== Examples and use cases ==
*[http://www.inxight.com/products/sdks/st/ Inxight StarTree]
*[http://www.psych.uni-goettingen.de/congress/gor-2001/contrib/noller-stephan-poster GOR2001 - content]
*[http://ucjeps.berkeley.edu/map2.html Hyperbolic Tree Demonstration from Deep Green Research Tree]

== References ==
[Lamping, et al., 1995] John Lamping, Ramana Rao, Peter Pirolli, A Focus+Context Technique Based on Hyperbolic Geometry for Visualizing Large Hierarchies, Xerox Palo Alto Research Center, Last Retrieved at: April 27, 2006. http://www.acm.org/sigchi/chi95/Electronic/documnts/papers/jl_bdy.htm

[edit]
3 References

[[Category:Techniques]]

Hyperbolic trees

2006-04-27T20:48:06Z

UE-InfoVis06-11:

== Authors ==
*[[Lamping, John|John Lamping]]
*[[Rao, Ramana|Ramana Rao]]
*[[Pirolli, Peter|Peter Pirolli]]

== Short Description ==
{{Quotation|[...]The essence of this scheme is to lay out the hierarchy in a uniform way on a hyperbolic plane and map this plane onto a circular display region. This supports a smooth blending between focus and context, as well as continuous redirection of the focus[...] Two salient properties of the figures are: First that components diminish in size as they move outwards, and second that there is an exponential growth in the number of components. These properties - "fisheye" distortion and the ability to uniformly embed an exponentially growing structure - are the aspects of this construction. [...]| [John Lamping et al., 1995]}}

Hyperbolic trees are often used to display webinformation. Therefore hyperbolic browsers were developed which support effective interaction with much lager hierarchies than conventional hierarchy viewers and complements the strengths of other novel tree browsers.

'''Comparison:'''

If you have a window of 600x600px a standard 2d-hierarchy browser can usually display 100 with 3 character text strings. The hyperbolic browser can display 1000 nodes in this area and about the 50 nearest to the focus can display from 3 up to dozens of characters of text.

== Suitable Datatypes ==
This visualization method can be used on hierarchies. With its characteristics the method is especially suitable for the visualization and manipulation of large hierachical data.

== Figures ==

The [http://www.mcescher.com/Gallery/recogn-bmp/LW436.jpg Circle Limit IV 1960 woodcut in black and ocre], printed from 2 blocks by [http://www.mcescher.com Maurits Cornelis Escher] (1898-1972) was the original inspiration for the hyperbolic browser.

The hyperbolic browser shows a tree of hierarchical information with its root initially in the center, but the display can be transformed to bring other nodes into focus.
The following figure shows an original hyperbolic tree with its origin in the center and 1004 nodes:

[[Image:Hyptree original.jpg]]

The origin does not have to be in the center of the fisheye as written above. The focus can be changed by the user either by clicking on any visible point to bring it into focus at the center or by dragging any visble point interactively to any other position:

[[Image:HypTree changinfocus.jpg]]

== Examples and use cases ==
*[http://www.inxight.com/products/sdks/st/ Inxight StarTree]
*[http://www.psych.uni-goettingen.de/congress/gor-2001/contrib/noller-stephan-poster GOR2001 - content]
*[http://ucjeps.berkeley.edu/map2.html Hyperbolic Tree Demonstration from Deep Green Research Tree]

== References ==
[Lamping, et al., 1995] John Lamping, Ramana Rao, Peter Pirolli, A Focus+Context Technique Based on Hyperbolic Geometry for Visualizing Large Hierarchies, Xerox Palo Alto Research Center, Last Retrieved at: April 27, 2006. http://www.acm.org/sigchi/chi95/Electronic/documnts/papers/jl_bdy.htm

[edit]
3 References

[[Category:Techniques]]

Hyperbolic trees

2006-04-27T20:42:00Z

UE-InfoVis06-11:

== Authors ==
*[[Lamping, John|John Lamping]]
*[[Rao, Ramana|Ramana Rao]]
*[[Pirolli, Peter|Peter Pirolli]]

== Short Description ==
{{Quotation|[...]The essence of this scheme is to lay out the hierarchy in a uniform way on a hyperbolic plane and map this plane onto a circular display region. This supports a smooth blending between focus and context, as well as continuous redirection of the focus[...] Two salient properties of the figures are: First that components diminish in size as they move outwards, and second that there is an exponential growth in the number of components. These properties - "fisheye" distortion and the ability to uniformly embed an exponentially growing structure - are the aspects of this construction. [...]| [John Lamping et al., 1995]}}

Hyperbolic trees are often used to display webinformation. Therefore hyperbolic browsers were developed which support effective interaction with much lager hierarchies than conventional hierarchy viewers and complements the strengths of other novel tree browsers.

'''Comparison:'''

If you have a window of 600x600px a standard 2d-hierarchy browser can usually display 100 with 3 character text strings. The hyperbolic browser can display 1000 nodes in this area and about the 50 nearest to the focus can display from 3 up to dozens of characters of text.

== Suitable Datatypes ==
This visualization method can be used on hierarchies. With its characteristics the method is especially suitable for the visualization and manipulation of large hierachical data.

== Figures ==

The [http://www.mcescher.com/Gallery/recogn-bmp/LW436.jpg Circle Limit IV 1960 woodcut in black and ocre], printed from 2 blocks by [http://www.mcescher.com Maurits Cornelis Escher] (1898-1972) was the original inspiration for the hyperbolic browser.

The hyperbolic browser shows a tree of hierarchical information with its root initially in the center, but the display can be transformed to bring other nodes into focus.
The following figure shows an original hyperbolic tree with its origin in the center and 1004 nodes:

[[Image:Hyptree original.jpg]]

The origin does not have to be in the center of the fisheye as written above. The focus can be changed by the user either by clicking on any visible point to bring it into focus at the center or by dragging any visble point interactively to any other position:

[[Image:HypTree changinfocus.jpg]]

== Examples and use cases ==
*[http://www.inxight.com/products/sdks/st/ Inxight StarTree]

== References ==
[Lamping, et al., 1995] John Lamping, Ramana Rao, Peter Pirolli, A Focus+Context Technique Based on Hyperbolic Geometry for Visualizing Large Hierarchies, Xerox Palo Alto Research Center, Last Retrieved at: April 27, 2006. http://www.acm.org/sigchi/chi95/Electronic/documnts/papers/jl_bdy.htm

[edit]
3 References

[[Category:Techniques]]

Hyperbolic trees

2006-04-27T20:41:47Z

UE-InfoVis06-11:

== Authors ==
*[[Lamping, John|John Lamping]]
*[[Rao, Ramana|Ramana Rao]]
*[[Pirolli, Peter|Peter Pirolli]]

== Short Description ==
{{Quotation|[...]The essence of this scheme is to lay out the hierarchy in a uniform way on a hyperbolic plane and map this plane onto a circular display region. This supports a smooth blending between focus and context, as well as continuous redirection of the focus[...] Two salient properties of the figures are: First that components diminish in size as they move outwards, and second that there is an exponential growth in the number of components. These properties - "fisheye" distortion and the ability to uniformly embed an exponentially growing structure - are the aspects of this construction. [...]| [John Lamping et al., 1995]}}

Hyperbolic trees are often used to display webinformation. Therefore hyperbolic browsers were developed which support effective interaction with much lager hierarchies than conventional hierarchy viewers and complements the strengths of other novel tree browsers.

Comparison:
If you have a window of 600x600px a standard 2d-hierarchy browser can usually display 100 with 3 character text strings. The hyperbolic browser can display 1000 nodes in this area and about the 50 nearest to the focus can display from 3 up to dozens of characters of text.

== Suitable Datatypes ==
This visualization method can be used on hierarchies. With its characteristics the method is especially suitable for the visualization and manipulation of large hierachical data.

== Figures ==

The [http://www.mcescher.com/Gallery/recogn-bmp/LW436.jpg Circle Limit IV 1960 woodcut in black and ocre], printed from 2 blocks by [http://www.mcescher.com Maurits Cornelis Escher] (1898-1972) was the original inspiration for the hyperbolic browser.

The hyperbolic browser shows a tree of hierarchical information with its root initially in the center, but the display can be transformed to bring other nodes into focus.
The following figure shows an original hyperbolic tree with its origin in the center and 1004 nodes:

[[Image:Hyptree original.jpg]]

The origin does not have to be in the center of the fisheye as written above. The focus can be changed by the user either by clicking on any visible point to bring it into focus at the center or by dragging any visble point interactively to any other position:

[[Image:HypTree changinfocus.jpg]]

== Examples and use cases ==
*[http://www.inxight.com/products/sdks/st/ Inxight StarTree]

== References ==
[Lamping, et al., 1995] John Lamping, Ramana Rao, Peter Pirolli, A Focus+Context Technique Based on Hyperbolic Geometry for Visualizing Large Hierarchies, Xerox Palo Alto Research Center, Last Retrieved at: April 27, 2006. http://www.acm.org/sigchi/chi95/Electronic/documnts/papers/jl_bdy.htm

[edit]
3 References

[[Category:Techniques]]

Hyperbolic trees

2006-04-27T20:41:35Z

UE-InfoVis06-11:

== Authors ==
*[[Lamping, John|John Lamping]]
*[[Rao, Ramana|Ramana Rao]]
*[[Pirolli, Peter|Peter Pirolli]]

== Short Description ==
{{Quotation|[...]The essence of this scheme is to lay out the hierarchy in a uniform way on a hyperbolic plane and map this plane onto a circular display region. This supports a smooth blending between focus and context, as well as continuous redirection of the focus[...] Two salient properties of the figures are: First that components diminish in size as they move outwards, and second that there is an exponential growth in the number of components. These properties - "fisheye" distortion and the ability to uniformly embed an exponentially growing structure - are the aspects of this construction. [...]| [John Lamping et al., 1995]}}
Hyperbolic trees are often used to display webinformation. Therefore hyperbolic browsers were developed which support effective interaction with much lager hierarchies than conventional hierarchy viewers and complements the strengths of other novel tree browsers.

Comparison:

If you have a window of 600x600px a standard 2d-hierarchy browser can usually display 100 with 3 character text strings. The hyperbolic browser can display 1000 nodes in this area and about the 50 nearest to the focus can display from 3 up to dozens of characters of text.

== Suitable Datatypes ==
This visualization method can be used on hierarchies. With its characteristics the method is especially suitable for the visualization and manipulation of large hierachical data.

== Figures ==

The [http://www.mcescher.com/Gallery/recogn-bmp/LW436.jpg Circle Limit IV 1960 woodcut in black and ocre], printed from 2 blocks by [http://www.mcescher.com Maurits Cornelis Escher] (1898-1972) was the original inspiration for the hyperbolic browser.

The hyperbolic browser shows a tree of hierarchical information with its root initially in the center, but the display can be transformed to bring other nodes into focus.
The following figure shows an original hyperbolic tree with its origin in the center and 1004 nodes:

[[Image:Hyptree original.jpg]]

The origin does not have to be in the center of the fisheye as written above. The focus can be changed by the user either by clicking on any visible point to bring it into focus at the center or by dragging any visble point interactively to any other position:

[[Image:HypTree changinfocus.jpg]]

== Examples and use cases ==
*[http://www.inxight.com/products/sdks/st/ Inxight StarTree]

== References ==
[Lamping, et al., 1995] John Lamping, Ramana Rao, Peter Pirolli, A Focus+Context Technique Based on Hyperbolic Geometry for Visualizing Large Hierarchies, Xerox Palo Alto Research Center, Last Retrieved at: April 27, 2006. http://www.acm.org/sigchi/chi95/Electronic/documnts/papers/jl_bdy.htm

[edit]
3 References

[[Category:Techniques]]

Hyperbolic trees

2006-04-27T17:56:40Z

UE-InfoVis06-11:

Hyperbolic trees

2006-04-27T17:51:13Z

UE-InfoVis06-11:

Hyperbolic trees

2006-04-27T17:49:16Z

UE-InfoVis06-11:

Hyperbolic trees

2006-04-27T12:34:17Z

UE-InfoVis06-11:

== Authors ==
*[[Lamping, John|John Lamping]]
*[[Rao, Ramana|Ramana Rao]]
*[[Pirolli, Peter|Peter Pirolli]]

== Short Description ==
{{Quotation|...The essence of this scheme is to lay out the hierarchy in a uniform way on a hyperbolic plane and map this plane onto a circular display region. This supports a smooth blending between focus and context, as well as continuous redirection of the focus...| [John Lamping et al., 1995]}}

== Suitable Datatypes ==
This visualization method can be used on hierarchies. With its characteristics the method is especially suitable for the visualization and manipulation of large hierachical data.

== Figures ==

The [http://www.mcescher.com/Gallery/recogn-bmp/LW436.jpg Circle Limit IV 1960 woodcut in black and ocre], printed from 2 blocks by [http://www.mcescher.com Maurits Cornelis Escher] (1898-1972) was the original inspiration for the hyperbolic browser.

The following figure shows an original hyperbolic tree with its origin in the center and 1004 nodes:

[[Image:Hyptree original.jpg]]

The origin does not have to be in the center of the fisheye. The focus can be changed by the user either by clicking on any visible point to bring it into focus at the center or by dragging any visble point interactively to any other position:

[[Image:HypTree changinfocus.jpg]]

== Examples and use cases ==
*[http://www.inxight.com/products/sdks/st/ Inxight StarTree]

== Evaluation ==
== References ==
[Lamping, et al., 1995] John Lamping, Ramana Rao, Peter Pirolli, A Focus+Context Technique Based on Hyperbolic Geometry for Visualizing Large Hierarchies, Xerox Palo Alto Research Center, Last Retrieved at: April 27, 2006. http://www.acm.org/sigchi/chi95/Electronic/documnts/papers/jl_bdy.htm

[edit]
3 References

[[Category:Techniques]]

Hyperbolic trees

2006-04-27T12:05:46Z

UE-InfoVis06-11:

== Authors ==
*[[Lamping, John|John Lamping]]
*[[Rao, Ramana|Ramana Rao]]
*[[Pirolli, Peter|Peter Pirolli]]

== Short Description ==
{{Quotation|...The essence of this scheme is to lay out the hierarchy in a uniform way on a hyperbolic plane and map this plane onto a circular display region. This supports a smooth blending between focus and context, as well as continuous redirection of the focus...| [John Lamping et al., 1995]}}

== Suitable Datatypes ==
This visualization method can be used on hierarchies. With its characteristics the method is especially suitable for the visualization and manipulation of large hierachical data.

== Figures ==

The [http://www.mcescher.com/Gallery/recogn-bmp/LW436.jpg Circle Limit IV 1960 woodcut in black and ocre], printed from 2 blocks by [http://www.mcescher.com Maurits Cornelis Escher] (1898-1972) was the original inspiration for the hyperbolic browser.

The following figure shows an original hyperbolic tree with its origin in the center and 1004 nodes:

[[Image:Hyptree original.jpg]]

The origin does not have to be in the center of the fisheye. The focus can be changed by the user either by clicking on any visible point to bring it into focus at the center or by dragging any visble point interactively to any other position:

[[Image:HypTree changinfocus.jpg]]

== Examples and use cases ==
== Evaluation ==
== References ==
[Lamping, et al., 1995] John Lamping, Ramana Rao, Peter Pirolli, A Focus+Context Technique Based on Hyperbolic Geometry for Visualizing Large Hierarchies, Xerox Palo Alto Research Center, Last Retrieved at: April 27, 2006. http://www.acm.org/sigchi/chi95/Electronic/documnts/papers/jl_bdy.htm

[edit]
3 References

[[Category:Techniques]]

Hyperbolic trees

2006-04-27T12:00:50Z

UE-InfoVis06-11:

== Authors ==
*[[Lamping, John|John Lamping]]
*[[Rao, Ramana|Ramana Rao]]
*[[Pirolli, Peter|Peter Pirolli]]

== Short Description ==
{{Quotation|...The essence of this scheme is to lay out the hierarchy in a uniform way on a hyperbolic plane and map this plane onto a circular display region. This supports a smooth blending between focus and context, as well as continuous redirection of the focus...| [John Lamping et al., 1995]}}

== Suitable Datatypes ==
This visualization method can be used on hierarchies. With its characteristics the method is especially suitable for the visualization and manipulation of large hierachical data.

== Figures ==

The [http://www.mcescher.com/Gallery/recogn-bmp/LW436.jpg Circle Limit IV 1960 woodcut in black and ocre], printed from 2 blocks by [http://www.mcescher.com Maurits Cornelis Escher] (1898-1972) was the original inspiration for the hyperbolic browser.

The following figure shows an original hyperbolic tree with its origin in the center and 1004 nodes:

[[Image:Hyptree original.jpg]]

The origin does not have to be in the center of the fisheye. The focus can be changed by the user either by clicking on any visible point to bring it into focus at the center or by dragging any visble point interactively to any other position:

[[Image:HypTree changinfocus.jpg]]

== Examples and use cases ==
== Evaluation ==
== References ==

[[Category:Techniques]]

Hyperbolic trees

2006-04-27T08:38:55Z

UE-InfoVis06-11:

Hyperbolic trees

2006-04-27T08:38:26Z

UE-InfoVis06-11:

Hyperbolic trees

2006-04-27T08:38:00Z

UE-InfoVis06-11:

Hyperbolic trees

2006-04-27T08:37:56Z

UE-InfoVis06-11:

File:HypTree changinfocus.jpg

2006-04-27T08:36:43Z

UE-InfoVis06-11:

== Summary ==
The figure shows a hyperbolic tree with four different focus.

== Source ==
[John Lamping et al., 1995] John Lamping, Ramana Rao, Peter Pirolli. A Focus+Context Technique Based on Hyperbolic Geometry for Visualizing Large Hierarchies, 1-8, 1995

File:HypTree changinfocus.jpg

2006-04-27T08:36:35Z

UE-InfoVis06-11: The figure shows a hyperbolic tree with four different focus.

== Summary ==
The figure shows a hyperbolic tree with four different focus.
== Copyright status ==

== Source ==
[John Lamping et al., 1995] John Lamping, Ramana Rao, Peter Pirolli. A Focus+Context Technique Based on Hyperbolic Geometry for Visualizing Large Hierarchies, 1-8, 1995

File:Hyptree original.jpg

2006-04-27T08:34:23Z

UE-InfoVis06-11:

== Summary ==
The figure shows an initial layout of a tree with 1004 nodes. A Poisson distribution is used for number of children.
The orgin of the hyperbolic tree is in the center.

== Source ==
[John Lamping et al., 1995] John Lamping, Ramana Rao, Peter Pirolli. A Focus+Context Technique Based on Hyperbolic Geometry for Visualizing Large Hierarchies, 1-8, 1995

File:Hyptree original.jpg

2006-04-27T08:33:34Z

UE-InfoVis06-11: The figure shows an initial layout of a tree with 1004 nodes. A Poisson distribution is used for number of children. The orgin of the hyperbolic tree is in the center.

== Summary ==
The figure shows an initial layout of a tree with 1004 nodes. A Poisson distribution is used for number of children.
The orgin of the hyperbolic tree is in the center.
== Copyright status ==

== Source ==
[John Lamping et al., 1995] John Lamping, Ramana Rao, Peter Pirolli. A Focus+Context Technique Based on Hyperbolic Geometry for Visualizing Large Hierarchies, 1-8, 1995

Hyperbolic trees

2006-04-27T08:25:52Z

UE-InfoVis06-11:

Hyperbolic trees

2006-04-27T08:03:36Z

UE-InfoVis06-11:

Hyperbolic trees

2006-04-25T19:51:26Z

UE-InfoVis06-11:

Hyperbolic trees

2006-04-25T18:40:15Z

UE-InfoVis06-11:

Hyperbolic trees

2006-04-25T17:31:58Z

UE-InfoVis06-11:

Hyperbolic trees

2006-04-25T17:31:45Z

UE-InfoVis06-11:

== 1 Authors ==
*[[Lamping, John|John Lamping]]
*[[Rao, Ramana|Ramana Rao]]
*[[Pirolli, Peter|Peter Pirolli]]

== 2 Short Description ==
{{Quotation|...The essence of this scheme is to lay out the hierarchy in a uniform way on a hyperbolic plane and map this plane onto a circuular diesplay region. This supports a smooth blending between focus and context, as well as continuous redirection of the focus...| [John Lamping et al., 1995]}}

[[Category:Techniques]]

Rao, Ramana

2006-04-24T10:55:29Z

UE-InfoVis06-11:

[[Image:Rao.jpg|thumb|Ramana Rao]]

'''Ramana Rao''' is a computer scientist, software developer and one of the founders of [http://www.inxight.com/ Inxight Software, Inc.] (1997). Moreover he leads its agency to build next-generation interface and information software products for the ever growing community of Internet users.

During his career Ramana Rao has pursued the goal of building interactive systems that enable people to perform much better on various knowledge tasks. Ramana Rao is the designer and co-inventor of [[Hyperbolic trees]] and [[Table lens]], two innovative techniques for effective interacting with large amounts of information.

Ramana Rao has spent much of his career at [http://www.parc.xerox.com/ Xerox’s Palo Alto Research Center] (PARC) and Inxight Software Center. At Xerox PARC he was a key member of the team that pioneered the field of information visualization. He researched a diversity of topics related to enabling people to interact with information more effectively. This explorations and inventions contain:

* intelligent information access,
* digital libraries,
* information visualization and
* user interfaces.

His work includes 25 patent filings and numerous research papers.
Ramana Rao has been noted for his speeches at many conferences and is frequently quoted by the media on topics ranging from interactive design to corporate innovation.

Ramana Rao received BS and MS degrees from [http://web.mit.edu/ MIT] in computer science and engineering. He lives in California with his wife and two daughters.

== Publications: ==
* [http://www.ramanarao.com/papers.html Papers and Talks]

[[Category:Persons]]

== External Links: ==

Here you can find the Homepage of: [http://www.ramanarao.com Ramana Rao]

[http://www.interaction-design.org/references/authors/ramana_rao.html Interaction-Design.org]

Rao, Ramana

2006-04-24T10:55:21Z

UE-InfoVis06-11:

[[Image:Rao.jpg|thumb|Ramana Rao]]

'''Ramana Rao''' is a computer scientist, software developer and one of the founders of [http://www.inxight.com/ Inxight Software, Inc.] (1997). Moreover he leads its agency to build next-generation interface and information software products for the ever growing community of Internet users.

During his career Ramana Rao has pursued the goal of building interactive systems that enable people to perform much better on various knowledge tasks. Ramana Rao is the designer and co-inventor of [[Hyperbolic trees]] and [[Table lens]], two innovative techniques for effective interacting with large amounts of information.

Ramana Rao has spent much of his career at [http://www.parc.xerox.com/ Xerox’s Palo Alto Research Center] (PARC) and Inxight Software Center. At Xerox PARC he was a key member of the team that pioneered the field of information visualization. He researched a diversity of topics related to enabling people to interact with information more effectively. This explorations and inventions contain:

* intelligent information access,
* digital libraries,
* information visualization and
* user interfaces.

His work includes 25 patent filings and numerous research papers.
Ramana Rao has been noted for his speeches at many conferences and is frequently quoted by the media on topics ranging from interactive design to corporate innovation.

Ramana Rao received BS and MS degrees from [http://web.mit.edu/ MIT] in computer science and engineering. He lives in California with his wife and two daughters.

== Publications: ==
* [http://www.ramanarao.com/papers.html Papers and Talks]

[[Category:Persons]]

== External Links: ==

Here you can find the Homepage of: [http://www.ramanarao.com Ramana Rao]
[http://www.interaction-design.org/references/authors/ramana_rao.html Interaction-Design.org]

Rao, Ramana

2006-04-24T10:53:10Z

UE-InfoVis06-11:

Rao, Ramana

2006-04-24T10:52:52Z

UE-InfoVis06-11:

[[Image:Rao.jpg|thumb|Ramana Rao]]

'''Ramana Rao''' is a computer scientist, software developer and one of the founders of [http://www.inxight.com/ Inxight Software, Inc.] (1997). Moreover he leads its agency to build next-generation interface and information software products for the ever growing community of Internet users.

During his career Ramana Rao has pursued the goal of building interactive systems that enable people to perform much better on various knowledge tasks. Ramana Rao is the designer and co-inventor of [[Hyperbolic trees]] and [[Table lens]], two innovative techniques for effective interacting with large amounts of information.

Ramana Rao has spent much of his career at [http://www.parc.xerox.com/ Xerox’s Palo Alto Research Center] (PARC) and Inxight Software Center. At Xerox PARC he was a key member of the team that pioneered the field of information visualization. He researched a diversity of topics related to enabling people to interact with information more effectively. This explorations and inventions contain:

* intelligent information access,
* digital libraries,
* information visualization and
* user interfaces.

His work includes 25 patent filings and numerous research papers.
Ramana Rao has been noted for his speeches at many conferences and is frequently quoted by the media on topics ranging from interactive design to corporate innovation.

Ramana Rao received BS and MS degrees from [http://web.mit.edu/ MIT] in computer science and engineering. He lives in California with his wife and two daughters.

== Publications: ==
* [http://www.ramanarao.com Papers and Talks]

[[Category:Persons]]

== External Links: ==

Here you can find the Homepage of: [http://www.ramanarao.com Ramana Rao]

File:Ward.jpg

2006-04-24T10:48:42Z

UE-InfoVis06-11: /* Source */

== Summary ==
This is Matthew O. Ward!
== Copyright status ==

== Source ==
[Ward, 2006] Matthew O. Ward. University of North Carolina at Asheville. Retrieved at: April 12, 2006.
http://www.appliedvis.org/speaker_info.cfm

File:Ward.jpg

2006-04-24T10:48:07Z

UE-InfoVis06-11: /* Source */

== Summary ==
This is Matthew O. Ward!
== Copyright status ==

== Source ==
[Ward, 2006] Matt Ward. University of North Carolina at Asheville. Retrieved at: April 12, 2006.
http://www.appliedvis.org/speaker_info.cfm

File:Ware.jpg

2006-04-24T10:45:58Z

UE-InfoVis06-11: /* Source */

== Summary ==
This is Colin Ware.
== Copyright status ==

== Source ==
[Ware, 2003] Colin Ware. University of Utah. Retrieved at: April 10, 2006.

http://infovis.org/infovis/2003/speakers.shtml

File:Ware.jpg

2006-04-24T10:45:50Z

UE-InfoVis06-11: /* Source */

== Summary ==
This is Colin Ware.
== Copyright status ==

== Source ==
[Ware, 2003] Colin Ware. University of Utah. Retrieved at: April 10, 2006.
http://infovis.org/infovis/2003/speakers.shtml

File:Fekete.jpg

2006-04-24T10:42:40Z

UE-InfoVis06-11: /* Source */

== Summary ==
This is Jean Daniel Fekete!
== Copyright status ==

== Source ==
[Fekete, 2002] Jean-Daniel Fekete. Indiana University. Retrieved at: April 11, 2006.
http://vw.indiana.edu/places&spaces/dev/map_detail.php?map_id=56

File:Fekete.jpg

2006-04-24T10:42:32Z

UE-InfoVis06-11: /* Source */

== Summary ==
This is Jean Daniel Fekete!
== Copyright status ==

== Source ==
[Fekete, 2002] Jean-Daniel Fekete. Indiana University. Retrieved at: April 10, 2006.
http://vw.indiana.edu/places&spaces/dev/map_detail.php?map_id=56

File:Fekete.jpg

2006-04-24T10:42:20Z

UE-InfoVis06-11: /* Source */

== Summary ==
This is Jean Daniel Fekete!
== Copyright status ==

== Source ==
[Fekete, 2003] Jean-Daniel Fekete. Indiana University. Retrieved at: April 10, 2006.
http://vw.indiana.edu/places&spaces/dev/map_detail.php?map_id=56

File:Feiner.jpg

2006-04-24T10:40:28Z

UE-InfoVis06-11: /* Source */

== Summary ==
This is Steven K. Feiner
== Copyright status ==

== Source ==
[Feiner, 2003] Steven Feiner. Interaction-Design.org. Retrieved at: April 10, 2006.
http://www.interaction-design.org/references/authors/steven_k_feiner.html

File:Bederson.jpg

2006-04-24T10:38:02Z

UE-InfoVis06-11: /* Source */

== Summary ==
This is Ben Bederson
== Copyright status ==

== Source ==
[Bederson, 2003] Ben Bederson. New York University. Retrieved at: April 10, 2006.
http://www.nyu.edu/alumni/news/AlumSpring03/NewsFeatures/Bederson.html

File:Brodlie.jpg

2006-04-24T10:33:20Z

UE-InfoVis06-11: /* Source */

== Summary ==
This is Ken Brodlie
== Copyright status ==

== Source ==
[Brodlie, 2006] Ken Brodlie. University of Leeds. Retrieved at: April 11, 2006.

http://www.comp.leeds.ac.uk/kwb/

File:Brodlie.jpg

2006-04-24T10:33:10Z

UE-InfoVis06-11: /* Source */

== Summary ==
This is Ken Brodlie
== Copyright status ==

== Source ==
[Brodlie, 2006] Ken Brodlie. University of Leeds. Retrieved at: April 10, 2006.
http://www.comp.leeds.ac.uk/kwb/

File:Apperley.jpg

2006-04-24T10:32:04Z

UE-InfoVis06-11: /* Source */

== Summary ==
This is Mark Apperley
== Copyright status ==

== Source ==
[Apperley, 2006] Mark Apperley. Interaction-Design.org. Retrieved at: April 10, 2006.
http://www.interaction-design.org/references/authors/mark_apperley.html

File:Pirolli.jpg

2006-04-24T10:31:08Z

UE-InfoVis06-11: /* = Source */

== Summary ==
This is a portrait of Peter Pirolli.

== Source ==
[Pirolli, 2006] Pete Pirolli. Palo Alto Research Center. Retrieved at: April 10, 2006.

http://www2.parc.com/istl/members/pirolli/pirolli.html

File:Rao.jpg

2006-04-24T10:30:41Z

UE-InfoVis06-11: /* Source */

== Summary ==
This is Ramana Rao.

== Copyright status ==

== Source ==
[Rao, 2006] Ramana Rao. International Academy for Advanced Decision Support. Retrieved at: April 10, 2006.
http://www.iaads.unomaha.edu/core/

File:Rao.jpg

2006-04-24T10:30:31Z

UE-InfoVis06-11: /* Source */

== Summary ==
This is Ramana Rao.

== Copyright status ==

== Source ==
[Rao, 2006] Ramana Rao. International Academy for Advanced Decision Support. Retrieved at: April 10, 2006
http://www.iaads.unomaha.edu/core/