Re-posted the correct version of new SIDS-to-Python file mapping manual (PDF only).
This is Version 3.1.1, corresponding to CGNS Version 3.1.
02 Mar 2011
|
- Posted draft minutes from the March 2, 2011 Steering Committee telecon.
(PDF).
- Posted new SIDS-to-Python file mapping manual (PDF only).
- Updated version numbering for User's Guide, SIDS-to-ADF, and SIDS-to-HDF documents
(no other changes to the documents),
to reflect the release of CGNS Version 3.1.
|
01 Mar 2011
|
- In Mid-Level Library, added information in
File Operations
about file_type = CG_FILE_ADF2, which can be used to write a Version 2.5 file from Version 3
when compiled in 32-bit.
|
25 Feb 2011
|
- Made Version 3.1 the current official document release, moved 2.5 to "prior version" status.
|
25 Feb 2011
|
- Modified Mid-Level Library:
|
23 Feb 2011
|
- Modified Mid-Level Library:
- Added particular changes of "int" to "cgsize_t" throughout.
- Added new sections on 64-bit C and Fortran Portability and Issues.
- Added references to xxxxNull and xxxxUserDefined under Typedefs.
- New Document Version is 3.1.3, corresponding to CGNS Version 3.1.
- Modified SIDS Document:
- Changed description of BCType_t slightly, to clarify the simple and compound types.
- Added section Model Type Structure Definition.
- Corrected ModelTypeNull and ModelTypeUserDefined listings (where enumerated values are a subset of the ModelType_t enumeration).
- New Document Version is 3.1.2, corresponding to CGNS Version 3.1.
|
04 Feb 2011
|
- Modified Mid-Level Library:
- Changed Null to CG_Null and UserDefined to CG_UserDefined, and added
comment under General Remarks about their usage.
- New Document Version is 3.1.2, corresponding to CGNS Version 3.1.
- Modified SIDS Document:
- Changed Null to xxxxNull and UserDefined to xxxxUserDefined, as appropriate.
- Also made sure that the xxxxNull is listed first, and the
xxxxUserDefined is listed second.
- New Document Version is 3.1.1, corresponding to CGNS Version 3.1.
|
01 Feb 2011
|
- Modified doc home page to change mention of ADFviewer to CGNSview.
- Modified User's Guide
- Changed references of ADFviewer to CGNSview.
- Updated code snippet examples to reflect changes in new UserGuideCodeV3.1,
including changes of MODE_READ to CG_MODE_READ (for example) in cg_open calls.
- Added mention of cg_error_handler.
- Changes to user/index.html, faq.html, intro.html, additional.html, started.html, trouble.html.
- New Document Version of Guide is 1.1.13, corresponding to CGNS Version 3.1.
- Modified Mid-Level Library
- Added new table of Typedef Name Access Functions under General Remarks.
- Added description of cg_elements_partial_write.
- Added descriptions of cg_save_as, cg_set_file_type, cg_get_file_type, cg_error_handler, cg_set_compress,
cg_get_compress, cg_set_path, and cg_add_path.
- New Document Version is 3.1.1, corresponding to CGNS Version 3.1.
- On Sitemap for CGNS Tools and Utilities, updated old ADFviewer to new CGNSview, along with relevant
new information.
- Major update of CGNS tools and utilities, including switch from
use of ADFviewer to CGNSview; New Document Version is 2.0.
|
11 Jan 2011
|
- Caught up with postings of telecon minutes. Added CGNS Tutorial slides
from Orlando Jan 2010. Added 2008-2009 CGNSTalk archives.
|
26 May 2009
|
- In the Applications
Software section of the CGNS Overview and Entry-Level
Document, changed the contact person for notification
about new CGNS applications.
- In the SIDS document, deleted
the contact info for questions about the SIDS, since it was no
longer valid, and is now covered by the CGNStalk mailing list.
|
22 May 2009
|
- Posted draft minutes from the May 20 CGNS Steering Committee
telecon.
(HTML,
PDF).
|
21 May 2009
|
- In the Accessing a
Node description in the "Navigating a CGNS File" section
of the Mid-Level Library document, corrected an error
in the syntax for the cg_gopath_f Fortran routine.
The last two arguments were reversed. Thanks to Richard
McDonald at the USGS for the correction.
|
20 May 2009
|
- In the Steering Committee Charter, deleted the list of
current member organizations in the
Organization/Bylaws
section.
This is now available at the CGNS
web site.
|
12 May 2009
|
- In the Zone
Information description in the "Structural Nodes" section
of the Mid-Level Library document, added a sentence
emphasizing that zones must be named alphanumerically to
ensure proper retrieval.
|
6 Apr 2009
|
- Posted draft minutes from the Apr 1 CGNS Steering Committee
telecon.
(HTML,
PDF).
|
14 Jan 2009
|
|
9 Jan 2009
|
- Posted draft minutes from the Jan 7 CGNS Steering Committee
meeting.
(HTML,
PDF).
|
19 Nov 2008
|
- Posted draft minutes from the Nov 5 CGNS Steering Committee
telecon.
(HTML,
PDF).
|
9 Oct 2008
|
- Added AIAA Paper 2008-0479, titled "Benchmarking the CGNS I/O
Performance," by Thomas Hauser, presented at the 46th AIAA
Aerospace Sciences Meeting and Exhibit.
[HTML,
PDF (318K, 8 pages)]
|
23 Sep 2008
|
- Posted draft minutes from the Sep 10 CGNS Steering Committee
telecon.
(HTML,
PDF).
|
11 Sep 2008
|
- Modified the description of the
Elements_t
structure in the SIDS to modify how NGON_n and
NFACE_n are used to define general polyhedral
elements.
Each face of an element (except for boundary faces) must be
shared by another element; faces may not be duplicated in
NGON_n with opposite orientations.
The sign of the face number for a particular polyhedral
element in NFACE_n determines the direction of its
normal with respect to that element - positive for outward,
negative for inward.
Also modified the
NGON_n/NFACE_n
example for consistency with the above change.
|
17 July 2008
|
- Modified each page to use server-side includes for adding the
footer.
|
11 July 2008
|
- Posted draft minutes from the July 2 CGNS Steering Committee
telecon.
(HTML,
PDF).
|
19 June 2008
|
- Modified the description of the
Elements_t
structure in the SIDS to incorporate the new definition of
the NGON_n element type, and add the NFACE_n
element type.
Also added examples
illustrating their use.
|
17 June 2008
|
- In the Typedefs
section of the Mid-Level Library documentation, added
PYRA_13 and NFACE_n to the list of supported
key words for ElementType_t.
|
27 May 2008
|
- Posted draft minutes from the May 7 CGNS Steering Committee
telecon.
(HTML,
PDF).
|
14 May 2008
|
- In the SIDS document, added a PYRA_13 element to
the description of the unstructured grid element numbering
conventions for
pyramid elements.
- Made a minor change in the Getting
Started section of the User's Guide to CGNS,
involving the use of PointList or PointRange
with GridLocation set to FaceCenter.
|
12 Mar 2008
|
|
7 Mar 2008
|
|
8 Feb 2008
|
- Added HTML versions of all the PDF attachments to meeting and
telecon minutes.
|
29 Jan 2008
|
|
23 Jan 2008
|
- Added HTML versions of the following papers.
|
18 Jan 2008
|
- Posted draft minutes from the Jan 6 CGNS Steering Committee
meeting.
(HTML,
PDF).
|
5 Dec 2007
|
- Added an "external link" symbol
(
) to all
links to non-NASA sites, per NASA policy.
|
29 Nov 2007
|
- Posted draft minutes from the Nov 28 CGNS Steering Committee
telecon.
(HTML,
PDF).
|
7 Nov 2007
|
- Modified the description of the
TurbulenceModel_t
structure to add references to the specific models that correspond
to the TurbulenceModelType names, and to add a
recommendation for handling subsequent changes to the models.
- In the User's Guide to CGNS,
added a note that it was originally published as
NASA/TM-2001-211236, October 2001.
|
9 Oct 2007
|
- Modified the list of
current
member organizations in the CGNS Steering Committee
Charter to reflect the name change of Thaerocomp Technical
Corporation to TTC Technologies.
|
19 Sep 2007
|
- Posted minutes from the Sept 12 CGNS Steering Committee telecon.
(HTML,
PDF).
|
14 Sep 2007
|
|
11 July 2007
|
|
5 July 2007
|
- In the SIDS document, rearranged
discussion of the AIAA Recommended Practice version of the
SIDS, noting that it's out of date, and removed links to it on
the CGNS documentation home page.
|
19 June 2007
|
- Posted minutes from the May 22 CGNS Steering Committee telecon.
(HTML,
PDF).
|
26 Mar 2007
|
- Posted minutes from the Mar 21 CGNS Steering Committee telecon.
(HTML,
PDF).
|
30 Jan 2007
|
- Corrected a minor error in Mid-Level Library document,
changing the error status names ALL_OK, ERROR,
NODE_NOT_FOUND, and INCORRECT_PATH to
CG_OK, CG_ERROR, CG_NODE_NOT_FOUND, and
CG_INCORRECT_PATH, respectively.
|
17 Jan 2007
|
- Corrected an error in SIDS document, in the description of
the unstructured grid element numbering conventions for
pyramid elements.
For the PYRA_14 element, node 14 should be at the
center of the quadrilateral face, not the center of the
element.
- Several modifications to the Mid-Level Library manual,
for consistency with the current CGNS Version 2.5 beta.
- New functions to
check file
validity and
configure some
internal CGNS library options.
- Additional functions providing alternate ways to
access a node.
- Changes in the use of functions for partial writes of
coordinate,
element,
and solution
data.
The result is now always the union of the existing and
new data.
As part of this, the functions cg_section_read_ext
and cg_elements_read_ext are no longer needed
and have been removed, and new functions
cg_ElementPartialSize and
cg_elements_partial_read have been added.
- Corrected typo in the data type of the argument data
in the Mid-Level Library function
cg_free.
|
30 Nov 2006
|
- Corrected error in the table at the top of the
Export Utilities
section.
cgns_to_tecplot converts from CGNS to Tecplot, not
the other way round.
|
16 Oct 2006
|
- Corrected an error in the Mid-Level Library manual, in
the argument list for
cg_conn_write_short.
Even though the specific cell connectivity data aren't needed,
the name of the donor zone is still required.
Thanks to Thorsten Schwarz for spotting the problem.
|
11 Oct 2006
|
|
25 Sep 2006
|
- Updated some links and contact points listed in the
Applications Software
section of the CGNS Overview and Entry-Level Document.
|
5 Sep 2006
|
- In the CGNS Steering Committee Charter,
- In the Mid-Level Library, modified the description of
the size argument for the
Zone Information
routines, attempting to clarify the definition for
unstructured grids.
- In the SIDS,
- Modified the description of VertexSize for the
Zone_t structure
to clarify its definition for unstructured grids.
- Modified the description of the
GridConnectivity_t
structure to allow GridLocation to be
either Vertex or FaceCenter for
Abutting and Abutting1to1 interfaces.
|
8 Aug 2006
|
- Posted minutes from the Aug 2 CGNS Steering Committee telecon.
(HTML,
PDF).
|
28 July 2006
|
- Various changes due to the new capability for
rind data with
unstructured grids.
- In the SIDS document, changes to the descriptions
and/or components of the following structures:
Rind_t,
GridCoordinates_t,
Elements_t,
FlowSolution_t,
ArbitraryGridMotion_t,
DiscreteData_t.
- In the SIDS-to-ADF File Mapping Manual, changes to
the descriptions of the
Rind_t,
GridCoordinates_t, and
FlowSolution_t
nodes, and to the figures for the
GridCoordinates_t,
Elements_t, and
FlowSolution_t
nodes.
Corresponding changes were also made in the
SIDS-to-HDF File Mapping Manual.
- In the Mid-Level Library manual, changes in the
Rind Layers
section.
- In the User's Guide to CGNS, wording changes in the
sections describing a single-zone grid and flow solution for
structured and
unstructured
grids, and in the
Structured Zone
Example in the "Overview of the SIDS" section.
- Added the Mid-Level Library function
cg_free,
which frees memory allocated by the library for character data
returned by some routines.
- Made the following mods due to the SIDS change making zone
connectivity donor information optional for generalized
multizone interfaces.
- Modified the description of the
GridConnectivity_t
structure in the SIDS document.
- In the GridConnectivity
node figure in both the SIDS-to-ADF and
SIDS-to-HDF File Mapping Manual, changed the
Cardinality of CellListDonor/PointListDonor from
"1" to "0,1".
- Added the function cg_conn_write_short
in the Mid-Level Library Manual, to write
generalized zone connectivity data without donor
information.
- In the SIDS document, added a sentence to the
description of ElementRange for the
Elements_t
structure to clarify the use of the global numbering system.
|
14 June 2006
|
- Added slides from the special
"CGNS Tutorial
Session" at the 36th AIAA Fluid Dynamics Conference in San
Francisco, California, June 5-8, 2006.
|
17 May 2006
|
- Posted minutes from the May 10 CGNS Steering Committee telecon.
(HTML,
PDF).
|
13 Apr 2006
|
|
10 Apr 2006
|
- Updated some links and contact points listed in the
Applications Software
section of the CGNS Overview and Entry-Level Document.
|
27 Mar 2006
|
|
1 Mar 2006
|
|
3 Feb 2006
|
- In the Mid-Level Library Manual, corrected a typo in
the name of the Fortran routine
cg_array_read_as_f,
used to read data arrays (the "_f" was left off).
|
17 Jan 2006
|
- Updated (and alphabetized) the list of
current
member organizations in the CGNS Steering Committee
Charter.
- Posted minutes from the Jan 11 CGNS Steering Committee meeting.
(HTML,
PDF).
|
10 Jan 2006
|
- Corrected a typo in the PDF version of the SIDS document
involving an escaped underscore.
Thanks to Marc Poinot for spotting it.
|
21 Dec 2005
|
|
15 Dec 2005
|
- In the SIDS document,
- Added a paragraph at the start of the
Introduction intended to
better explain the importance and benefits of using CGNS.
- Added a bit to the description of the
RotatingCoordinates_t
data structure to more clearly explain its use, and
deleted the sentence saying that it doesn't cover cases
where the zone interfaces are not perpendicular to the
axis of rotation.
- Made a few other changes in various places to correct
typos and add clarification.
Thanks to Kurt Weber for his review of the updated AIAA
Recommended Practice, and for suggesting these changes.
|
7 Dec 2005
|
|
21 Nov 2005
|
- Eliminated most usage of images for equation elements
throughout the HTML version of the CGNS documentation, in
favor of the appropriate HTML character entities.
E.g., instead of using a GIF image to represent the Greek
letter rho, the character entity ρ is used instead.
Images were originally used because HTML browsers typically
didn't support character entities for many of the symbols
that were used.
Current-generation browsers, however, are much better.
Mozilla Firefox 1.0.7 supports all the character entities used
in the CGNS documentation, and Microsoft Internet Explorer 6.0
supports all but a couple.
See the list of standard HTML 4.0 character entities for
Symbols
and Greek Letters
to see how they are displayed in your browser.
|
17 Nov 2005
|
- Corrected typos in the Solution
Data section of the Mid-Level Library manual.
(GridLocation_t was mistakenly written as
GridLocationType_t.)
|
16 Nov 2005
|
- Corrected a minor cross-referencing error in the PDF version of
the SIDS document.
|
2 Nov 2005
|
- In the description of the
Generalized
Connectivity routines in the Mid-Level Library
Manual, clarified the definitions of ndata_donor
and donor_data.
|
19 Oct 2005
|
|
18 Oct 2005
|
- Added a couple of sentences in the
Multizone Interface Connectivity
and Boundary Conditions sections of
the SIDS document to clarify that a given zone boundary
segment is intended to be defined as either a boundary
condition segment or a multizone connectivity segment, but not
both.
|
17 Oct 2005
|
- Updated the Elements and
Documentation section of the Overview and Entry-Level
Document to reflect the option of using HDF instead of ADF.
(Thanks to Chris Rumsey for doing the update.)
|
5 Oct 2005
|
- Posted minutes from the Oct 4 CGNS Steering Committee telecon.
(HTML,
PDF).
- Added ERF Paper 31-107,
titled "Application of CGNS software components for
helicopter blade fluid-structure strong coupling," by M. Poinot,
M. Costes, and B. Cantaloube, presented at the 31st European
Rotorcraft Forum, Florence, Italy. [PDF (174K, 10 pages)]
|
7 Sep 2005
|
- In the History section of
the Overview document, added a sentence crediting
ONERA, ICEM CFD, and AEDC for the addition of support for HDF5.
|
6 Sep 2005
|
- Due to the release of CGNS Version 2.4, the CGNS documentation
has been moved as shown below:
- Documentation for CGNS Version 2.2 has been deleted.
- Added the SIDS-to-HDF
File Mapping Manual, created by Marc Poinot using the
SIDS-to-ADF File Mapping Manual as a basis.
- Updated the Overview and
Entry-Level Document to reflect the release of
CGNS Version 2.4, and the option of using HDF instead of ADF.
- Modified the CGNS Steering Committee Charter to note the
addition of the HDF5 option, change the
license
covering the allowed distribution and use of the CGNS software,
and to update a few links.
- Added a note in the Introduction
section of the User's Guide about the option of using
HDF instead of ADF as the underlying database manager.
- Minor modifications to the SIDS document, in the
Introduction,
Conventions,
Hierarchical Structures,
Multizone Interface Connectivity,
and Boundary Conditions sections,
due to the option of using HDF instead of ADF.
- Minor modifications to the Mid-Level Library document,
in the Introduction,
General Remarks,
Opening and Closing
a CGNS File, and Navigating
a CGNS File sections, due to the option of using HDF
instead of ADF.
- Minor modifications to the SIDS-to-ADF File Mapping Manual,
in the Brief Description of CGNS,
CGNS Documentation, and
Summary Description of ADF,
sections, due to the option of using HDF instead of ADF.
- Added a note to the list of CGNS
Data Structures saying that the "File Mapping" links
connect to the SIDS-to-ADF File Mapping Manual.
- Added the SIDS-to-HDF File Mapping Manual to the lists
in the instructions for downloading the
HTML and
LaTeX source files.
- Added the SIDS-to-HDF File
Mapping Manual to the document
sitemaps.
|
23 Aug 2005
|
- Posted slides CFD General
Notation System, an overview of the CGNS project and its
current status, presented by Bruce Wedan of ANSYS/ICEM CFD at
NASA Ames, Jan 2005. [PowerPoint (345K, 46 pages)].
- In the Mid-Level Library manual, added a paragraph to
the description of the function
cg_bcdata_write
about writing the boundary condition data itself.
|
14 Jul 2005
|
|
20 Jun 2005
|
- Updated the documentation for consistency with CGNS version 2.4.
In the SIDS document this includes:
- GridConnectivityProperty_t
has been added to the
GridConnectivity1to1_t
data structure.
- GridLocation_t,
PointRange, and PointList have been added
to the BCDataSet_t
data structure, allowing boundary conditions to be
specified at locations different from those used to
defined the BC patch.
An example of this has
also been added.
- Data structures have been added to
FlowEquationSet_t
for describing the electric field, magnetic field, and
conductivity models used for
electromagnetic flows.
Corresponding recommended
data-name identifiers
have also been added.
- RotatingCoordinates_t
has been added to the
Family_t
data structure.
- A BCDataSet_t
list has been added to the
FamilyBC_t
data structure, allowing specification of boundary
condition data arrays for CFD families.
- GridLocation_t,
PointRange, PointList,
FamilyName_t,
UserDefinedData_t,
and Ordinal
have been added to the
UserDefinedData_t
data structure.
- The DimensionalUnits_t
and DimensionalExponents_t
structures have been expanded to include units for
electric current, substance amount, and luminous
intensity.
In the SIDS-to-ADF File Mapping Manual:
- Details have been added for the new nodes
AdditionalUnits_t,
AdditionalExponents_t,
EMElectricFieldModel_t,
EMMagneticFieldModel_t,
EMConductivityModel_t.
- The description of ListLength for the
BCDataSet_t node has been
modified due to the addition of GridLocation_t to
the BCDataSet_t
structure.
- Minor modifications to some of the
File Mapping Figures
due to the addition of optional child nodes to some
nodes, primarily affecting
Cardinality
values.
- Added new child nodes in the
GridConnectivity1to1,
BCDataSet,
FlowEquationSet,
Family, and
UserDefinedData
figures.
- Added new figures for the
DimensionalExponents,
DimensionalUnits,
EMElectricFieldModel,
EMMagneticFieldModel,
EMConductivityModel, and
FamilyBC
nodes.
And in the Mid-Level Library
manual:
- In the list of Typedefs,
added the typedefs ElectricCurrentUnits_t,
SubstanceAmountUnits_t, and
LuminousIntensityUnits_t, and added some new key
words to the ModelType_t typedef.
- Modified the description of the routines for reading/writing
dimensional units
and exponents
due to the addition of electric current, substance
amount, and luminous intensity.
- Added routines for
reading/writing
point sets (i.e., PointRange and
PointList nodes).
- For user-defined
data, added detail about reading/writing point set
information.
- Added a routine for
writing a
partial set of grid coordinates.
- Added new routines related to
element connectivity,
including routines for reading/writing partial lists of
element and parent data.
- Added a routine for
writing a
partial flow solution.
- Added routines for
reading/writing
special grid connectivity information for 1-to-1 grid
connectivity.
- Added detail about
reading/writing point
set information to BCDataSet_t nodes that
are children of a BC_t node.
- Added routines for
reading/writing
BCDataSet_t nodes for a CFD family.
- Added a routine for
reading
electromagnetic equation set info, and added
types for
electromagnetic models.
|
6 Jun 2005
|
- Posted minutes from the May 25 CGNS Steering Committee telecon.
(HTML,
PDF).
|
27 May 2005
|
- Updated some links and contact points listed in the
Applications Software
section of the CGNS Overview and Entry-Level Document.
|
26 May 2005
|
- Modified the Organization/Bylaws
section of the CGNS Steering Committee Charter to allow
the appointment of a Vice-Chairperson.
|
22 Mar 2005
|
- Posted minutes from the Mar 16 CGNS Steering Committee telecon.
(HTML,
PDF).
|
4 Feb 2005
|
- Added AIAA Paper
2005-1381, titled "Benchmarking Parallel I/O Performance
for Computational Fluid Dynamics Applications," by P. D.
Pakalapati and T. Hauser, presented at the 43rd AIAA Aerospace
Sciences Meeting and Exhibit. [PDF (3.6M, 8 pages)]
|
24 Jan 2005
|
- Corrected an error in the Mid-Level Library manual, in
the description of the
data conversion
routines cg_conversion_write and
cg_conversion_read.
The scale and offset factors are stored in a two-element array,
not as separate scalars.
- Corrected an error in the SIDS document, in the
Elements_t
data structure examples.
The examples included DataArray_t data structures
defining ParentData for 3-D elements, where it
doesn't apply.
- In the list of CGNS-related
conference papers, added R. Magnan as an author for AIAA
Paper 2005-0334.
Apologies for inadvertantly omitting him in the original update.
|
19 Jan 2005
|
- Added AIAA Paper
2005-0334, titled "CGNS-Based Data Model for Turbine Blade
Optimization," by H. Iepan, F. Guibault, M.-G. Vallet, and
R. Magnan, presented at the 43rd AIAA Aerospace Sciences
Meeting and Exhibit. [PDF (379K, 11 pages)]
|
18 Jan 2005
|
- Posted minutes from the Jan 12 CGNS Steering Committee meeting.
(HTML,
PDF).
- Added AIAA Paper 2005-1155,
titled "Checking CFD interfaces in a multi-disciplinary workflow
with an XML/CGNS compiler" by M. Poinot, E. Montreuil, and E.
Henaux, presented at the 43rd AIAA Aerospace Sciences Meeting
and Exhibit. [PDF (662K, 11 pages)]
|
19 Nov 2004
|
- Corrected (as Marc Poinot put it) the "smallest typo
ever known", in the "Deforming Grid Motion" example in the
Time-Dependent Flow section
of the SIDS document.
Thanks to Marc for spotting this.
- Modified the Steering Committee Charter to add Utah
State University, Stanford University, and ANSYS-CFX as
Steering
Committee members.
- Posted minutes from the Nov 17 CGNS Steering Committee telecon.
(HTML,
PDF).
|
20 Oct 2004
|
- Corrected an error in the section on
Unstructured Grid Element
Numbering Conventions in the SIDS document.
For pyramid elements, the oriented edges for face F4
were listed as E6,E8,-E7, and the correct values
are E3,E8,-E7.
Thanks to Alan Sayre for spotting this.
|
6 Oct 2004
|
|
30 Sep 2004
|
- Posted minutes from the Sep 28 CGNS Steering Committee telecon.
(HTML,
PDF).
|
29 Sep 2004
|
|
7 Jul 2004
|
- Posted minutes from the June 30 CGNS Steering Committee meeting.
(HTML,
PDF).
- Added AIAA Paper 2004-2142,
titled "Impact of CGNS on CFD Workflow" by M. Poinot,
C. L. Rumsey, and M. Mani, presented at the 34th AIAA Fluid
Dynamics Conference and Exhibit. [PDF (729K, 12 pages)]
|
22 Jun 2004
|
- Added AIAA Paper 2004-1088,
titled "Parallel I/O for the CGNS system" by Th. Hauser,
presented at the 42nd AIAA Aerospace Sciences
Meeting and Exhibit. [PDF (1.5M, 11 pages)]
|
2 Jun 2004
|
- Removed the wording "in the same manner as grid connectivity"
in the description of the BC_t
node in the SIDS-to-ADF File Mapping Manual, that
was inadvertantly left in when the documentation was updated
with the release of CGNS Version 2.3.
|
18 May 2004
|
- Changed the description of
Ordinal
in the Mid-Level Library manual to say that it may be
any integer value, and is not limited to values > 0.
|
2 Apr 2004
|
- Posted minutes from the Mar 25 CGNS Steering Committee telecon.
(HTML,
PDF).
|
26 Mar 2004
|
- Due to the release of CGNS Version 2.3, the CGNS documentation
has been moved as shown below:
- Documentation for CGNS Version 2.1 has been deleted.
- Updated the Overview document
to reflect the release of CGNS Version 2.3.
|
19 Mar 2004
|
- Removed the web page showing access stats for the CGNS
documentation web pages.
The widespread use of indexing robots for search engines, and
the local use of link validation tools, have made the access
stats pretty meaningless.
|
13 Feb 2004
|
- Changed the description of the
BC_t data structure
in the SIDS manual to reflect the addition of
ElementRange and ElementList.
- In the Mid-Level Library manual, modified the
description of the routines related to the
Boundary Condition Type and
Location to reflect the addition of ElementRange
and ElementList in the BC_t structure.
- In the File Mapping manual, modified the
BC_t figure
to reflect the addition of ElementRange and
ElementList.
- In the User's Guide to CGNS, modified the
"Getting Started" section
to reflect the addition of ElementRange and
ElementList in the BC_t structure.
|
29 Jan 2004
|
- Changed names of some .gif files used in the HTML version of
the SIDS document, to avoid file
name conflicts on Windows systems, which (unfortunately) uses
case-insensitive file names.
|
13 Jan 2004
|
|
24 Nov 2003
|
- Posted minutes from the Nov 20 CGNS Steering Committee telecon.
(HTML,
PDF).
|
24 Sep 2003
|
- Posted minutes from the Sep 18 CGNS Steering Committee telecon.
(HTML,
PDF).
|
12 Sep 2003
|
- Corrected typos in the Grid
Connectivity section of the Mid-Level Library manual.
(GridLocation_t was mistakenly written as
GridLocationType_t.)
|
4 Jun 2003
|
|
2 Jun 2003
|
- Posted minutes from the May 29 CGNS Steering Committee telecon.
(HTML,
PDF).
|
20 May 2003
|
|
13 May 2003
|
- Due to the release of production Version 2.2 of the CGNS software,
the CGNS documentation has been moved as shown below:
- Documentation for Software Release 2.0 has been deleted.
- Updated the Overview document
to reflect the release of Version 2.2 of the CGNS software.
- In the ADF User's Guide, modified the section on
Acquiring the Software
and Documentation to reflect the current use of
SourceForge
for distribution.
- In the Mid-Level Library, modified the section on
Acquiring the Software
and Documentation to reflect the current use of
SourceForge
for distribution.
|
29 Apr 2003
|
- Added site maps for the
major CGNS documents.
|
23 Apr 2003
|
- A search capability has been added.
Words and/or phrases may be searched for in a specific
document, or in all documents combined.
|
27 Mar 2003
|
- Added a paragraph about the CGNStalk mailing list, with a link
to the
list
archive.
- Modified the description of
cg_goto in
the Mid-Level Library manual
to note that when accessing a BCData_t node,
the index must be set to either Dirichlet or
Neumann.
|
26 Mar 2003
|
- Posted minutes from the Mar 20 CGNS Steering Committee telecon.
(HTML,
PDF).
|
20 Mar 2003
|
- Added a sentence to the description of the
ZoneBC_t data structure
in the SIDS document to clarify
that each boundary condition patch must be represented by a
single BC_t data structure.
- Expanded Note 2 for the BC_t
data structure in the SIDS
document, to add some discussion about the interpretation
of the points defining a BC patch when GridLocation
is set to Vertex.
|
28 Jan 2003
|
|
23 Jan 2003
|
|
22 Jan 2003
|
|
15 Jan 2003
|
- Posted minutes from the Jan 6 CGNS Steering Committee meeting.
(HTML,
PDF).
|
10 Dec 2002
|
|
6 Dec 2002
|
- Posted minutes from the Dec 4 CGNS Steering Committee telecon.
(HTML,
PDF).
|
26 Sep 2002
|
|
25 Sep 2002
|
|
20 Sep 2002
|
- Updated the documentation for consistency with Release 2.2,
Beta 1, of the CGNS software.
In the SIDS document this includes:
In the File Mapping Manual:
- Detailed descriptions for the
Axisymmetry_t,
RotatingCoordinates_t,
GridConnectivityProperty_t,
Periodic_t,
AverageInterface_t,
BCProperty_t,
WallFunction_t,
Area_t, and
Gravity_t
nodes.
- Added figures for the
Axisymmetry_t,
RotatingCoordinates_t,
GridConnectivityProperty_t,
Periodic_t,
AverageInterface_t,
BCProperty_t,
WallFunction_t,
Area_t, and
Gravity_t
nodes.
And in the Mid-Level Library
manual:
|
12 Sep 2002
|
|
6 Sep 2002
|
|
23 Aug 2002
|
|
20 Aug 2002
|
|
12 Aug 2002
|
- In the PDF version of the Mid-Level
Library manual, corrected error in the input/output labeling
for fn in the cg_open, cg_version, and
cg_close routines.
|
30 Jul 2002
|
- Updated the Overview document
to reflect the release of Version 2.1 of the CGNS software on
May 24, 2002.
|
3 Jul 2002
|
- Posted slides presented by John Steinbrenner of Pointwise, Inc.,
at the 8th International Conference on Numerical Grid Generation
in Honolulu, Hawaii, June 2-6, 2002.
[PDF (131K, 12 pages),
PowerPoint (143K, 12 pages)].
|
2 Jul 2002
|
- Posted minutes from the June 24 CGNS Steering Committee meeting.
(HTML,
PDF).
|
31 May 2002
|
- Due to the release of production Version 2.1 of the CGNS software
on May 24, the CGNS documentation has been moved as shown below:
|
23 May 2002
|
- Corrected a minor error in the
OversetHoles_t
structure definition.
PointRange and PointList are not both
optional; one must be specified, but not both.
|
22 May 2002
|
- Posted minutes from the May 15 CGNS Steering Committee telecon.
(HTML,
PDF).
|
20 May 2002
|
|
7 May 2002
|
- Added the document version number and the applicable CGNS
software release number to the home or title page for each
of the CGNS documents.
Also added the CGNS logo, and in the HTML version changed
the heading color to match the logo.
- Updated and reorganized the
Overview and Entry-Level
Document.
- Modified the definition of NormalListFlag for the
Boundary Condition Type and
Location routines in the Mid-Level Library manual.
- Added a list summarizing the change
history for the CGNS documentation.
|
25 Mar 2002
|
|
20 Mar 2002
|
- Posted minutes from the Mar 13 CGNS Steering Committee telecon.
(HTML,
PDF).
|
15 Mar 2002
|
|
13 Mar 2002
|
|
11 Mar 2002
|
- Changed the three non-PDF slide
presentations to PDF files, supplied by Diane Poirier.
(Thanks, Diane!)
|
6 Mar 2002
|
- Added a page with the monthly access statistics for the CGNS
documentation web site.
|
14 Feb 2002
|
- In the SIDS document:
- In the File Mapping Manual:
- In the Mid-Level Library Manual:
- In the User's Guide:
|
5 Feb 2002
|
|
4 Feb 2002
|
- Changed the attachments to the minutes from the
Jan 14 CGNS Steering Committee meeting to PDF files,
supplied by Diane Poirier. (Thanks, Diane!)
|
31 Jan 2002
|
|
25 Jan 2002
|
- Added AIAA Paper 2002-0752,
titled "CFD General Notation System (CGNS): Status and Future
Directions", presented at the 40th AIAA Aerospace Sciences
Meeting and Exhibit. [PDF (289K, 13 pages)]
|
23 Jan 2002
|
|
14 Nov 2001
|
|
2 Nov 2001
|
- Changed the cardinality of FamilyBC_t to (0,1).
This affects:
- Modified the docs to reflect the fact that the cardinality of
GeometryReference_t is (0,N).
This affects:
- Added the FamilySpecified boundary condition type, for
specifying boundary conditions for a family.
This affects:
- Tried to clarify the definition of the family name, by adding
to the description of
FamilyName_t
node in the File Mapping Manual.
|
1 Nov 2001
|
|
10 Oct 2001
|
|
26 Sep 2001
|
|
17 Sep 2001
|
|
6 Sep 2001
|
|
23 Aug 2001
|
|
21 Aug 2001
|
|
10 Jul 2001
|
- In the Mid-Level Library
manual, changed to a slanted red
font for the output variables, to better distinguish them
from the input variables.
|
27 Jun 2001
|
- Corrected a minor bug in the
Flow Solution
Example in the SIDS manual.
The nondimensionalization factor for the momentum in the
example is sqrt(p*rho), not
sqrt(p/rho), and the corresponding
ConversionScale values for MomentumX and
MomentumY are both 352.446.
|
17 Apr 2001
|
|
5 Apr 2001
|
|
14 Mar 2001
|
- In the SIDS manual, added statements in the sections describing the
BaseIterativeData_t
and ZoneIterativeData_t
data structures clarifying that iterative data stored in a
CGNS database corresponds to values at the end of the
associated iteration.
|
7 Mar 2001
|
- In the SIDS manual, added a statement in the
2-D (Surface) Elements
subsection clarifying the normal direction for 2-D
unstructured grid elements.
- In the SIDS manual, added a statement in the section on
data-name
identifiers for flowfield variables stating that for
vector quantities, data-name identifiers for components in
cylindrical and spherical coordinates are established, even
when they're not explicitly listed.
|
6 Mar 2001
|
- Included software change history in this "What's New?" page.
|
22 Feb 2001
|
|