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This commit is the result of the squashing of rfc4_dev branch in a single
commit. It implements mostly RFC 4 related work.
* Grid handling:
- remove obsolete and presumably unfinished implementation of grid catalog functionality
- all grid functionality is in grids.cpp/.hpp
- vertical and horizontal grid shift: rework to no longer load whole grid into memory
- remove hgrids and vgrids member from PJ structure, and store them in hgridshift/vgridshift/deformation structures
- build systems: add optional libtiff dependency. Must be explicitly disabled if not desired
- add support for horizontal and vertical grids in GeoTIFF, if libtiff is available
- add GenericShiftGridSet and GenericShiftGrid classes, relying on TIFF grids, that can be used for generic purpose grid-based adjustment
- add a +proj=xyzgridshift method to perform geocentric translation by grid. Used for French NTF to RGF93 transformation using gr3df97a.tif grid
- deformation: add support for +grids= for GeoTIFF grids
- horizontal grid shift: fix failures on points slightly outside a subgrid (fixes #209)
* File management:
- add a filemanager.cpp/.hpp to deal with file related work
- test for legacy proj_api.h fileapi
- proj.h: add proj_context_set_fileapi() and proj_context_set_sqlite3_vfs_name() (fixes #866)
- add capability to read resource files from the user writable directory
* Network access:
- build systems: add optional curl dependency
- add a curl-based default implementation for network related functionality
- proj.h: add C API to control network functionality, and optionaly provide network callbacks
- add data/proj.ini with default settings
- add a SQLite3 local cache of downloaded chunks
- add proj_is_download_needed() and proj_download_file()
* Use Win32 Unicode APIs and expect all strings to be UTF-8 (fixes #1765)
For backward compatibility, if PROJ_LIB content is found to be not UTF-8 or
pointing to a non existing directory, then an attempt at interpretating it
in the ANSI page encoding is done.
proj_context_set_search_paths() now assumes strings to be in UTF-8, and
functions returning paths will also return values in UTF-8.
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about.rst
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This work mostly consists of:
- a C++ implementation of the ISO-19111:2018 / OGC Topic 2
"Referencing by coordinates" classes to represent Datums,
Coordinate systems, CRSs (Coordinate Reference Systems) and
Coordinate Operations.
- methods to convert between this C++ modeling and WKT1, WKT2
and PROJ string representations of those objects
- management and query of a SQLite3 database of CRS and Coordinate Operation definition
- a C API binding part of those capabilities
This is all-in-one squashed commit of the work of
https://github.com/OSGeo/proj.4/pull/1040
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There was an issue since transformation.rst which uses this citation is
alphabetically after references.rst.
The documented workaround in https://github.com/mcmtroffaes/sphinxcontrib-bibtex/issues/8
is to rename references.rst as zrefereces.rst, so it is alphabetically last.
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HOWTO-RELEASE updated accordingly.
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Added NEWS section to frontpage, update download links and adjusted version number.
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Removed content sections from a bunch of pages since they clutter up the
PDF output and the same info is available in the sidebar of the webpage.
A few sections has been turned of for the PDF output, most notable the
front page of the webpage. It doesn't really fit in the PDF.
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Short description of PROJ. Citation section added from README. License
moved from it's own page to a section on the about page.
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Removed everything but the leading introduction and added release
history from 5.0.0 and on.
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Mailing list section from frontpage moved to the new section. So is the
contributing and for_proj_contributors pages.
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Test status and coverage content should be shown for HTML.
PDF documentation does not to self-reference itself.
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This also includes the PDF manual, Qt help file, man pages, etc.
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The 'Applications' chapter is moved to the top level of the website in
order to make it easier for users to find the pages quickly instead of
having to search through sub-sections in other chapters.
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Added new section on PROJ resource files to the top level of the
documentation. Moved information on init-file from the 'usage'
chapter to the new section. Also moved pages on grids and HTPD to the
new resource files section. Finally links and information on the new
regional datumgrids packages is added.
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transformations. Both are grouped in a section called operations.
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pandoc.
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A section on "Using PROJ.4" has been introduced giving a introduction
on how to use PROJ.4. The Parameters section has been removed and the
content reworked into other sections. Additionally the order of chapters
has been changed to provide a more complete and readable experience for
users of the documentation.
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* Get PDF build output with Sphinx healthy
* copy pdf to branch for upload on website
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master branch. proj4.org uses the Sphinx documentation stack, and
it is located in the ./docs directory.
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