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With projects.h not being available to outside users anymore we need to
define PJ_UNITS, PJ_ELLPS, PJ_PRIME_MERIDIANS and PJ_OPERATIONS
elsewhere.
Related pj_get_*_ref() functions have been removed in favour
of their proj_ namespaced counterparts.
char pointers have been changed to const char pointers.
Resolves #983
Resolved #1147
Make char pointers const
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Parameters such as towgs84, nadgrids and geoidgrids was previously only
handled by pj_transform(). This commit add a compatibility layer in
proj_create() by calling the pj_cs2cs_emulation_setup() function. This
function sets up a handful of predefined transformation objects on the
PJ object that is being created. Each of these transformation objects
are related to the cs2cs-style parameters we are trying to emulate in
the 4D API. That is, if the +towgs84 parameters is used we create
P->helmert with the parameters specified in +towgs84. Similarly for
+axis, +nadgrids and +geoidgrids. When these transformation objects
exists we use them in the prepare and finalize functions in pj_fwd/
pj_inv. If no cs2cs-style parametes are specified we skip those
parts of the prepare and finalizing steps.
Co-authored-by:Thomas Knudsen <thokn@sdfe.dk>
Co-authored-by:Kristian Evers <kristianevers@gmail.com>
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With the introduction of the "inverted" flag on PJ objects
you can no longer rely on checking that the inv, inv3d and inv4d
functions are available on said PJ object. The function is used
internally a few places and otherwise exposed in proj_api.h to
ensure that users of the old programming interface can safely
check if an operation has an inverse.
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arbitrary dimensionality in test code
* Call trans func of same dimensionality as input in gie
* Refactor prep/fin code for pj_fwd/pj_inv 2D,3D,4D
* Remove prime meridian handling from pj_transform (now handled in pj_fwd_prepare/pj_inv_finalize)
* Introduce prep/fin skips, mostly in support of axisswap and pipeline drivers
* Refactor fwd/inv subsystem
* pj_transform: Let pj_fwd/inv handle scaling
* Let pj_fwd/inv3d fall back to 2D eventually
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* Free format now in cmd lines, in gie, and in init files
* Corrected handling of defaults
* Add demo of integrated definition and validation
* Repair stack-smashing memmove in get_init
* repair paralist corruption, clean up debug output
* Install test files for nmake builds
* Add many improvements following suggestions by @schwehr
* Be consistent in requiring lower case everywhere in gie.c
Also, this Fixes #703 and Fixes #697
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Increase the focus on PJ_COORD as primary datatype: Eliminate use of PJ_TRIPLET etc.
Trim proj.h by removing material that has become unnecessary.
Improve constness
Make proj_factors work in proj.h space, by providing a trimmed down PJ_FACTORS (which even has more meaningful field names)
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Improve error messaging for cct and gie, and do some clean ups in the ellipsoid handling - partially to squash bugs, partially to improve naming consistency which, in turn, improves the readability of the ellipsoid handling code.
Renamed functions:
pj_inherit_ellipsoid_defs has been renamed pj_inherit_ellipsoid_def, while pj_calc_ellps_params has been renamed pj_calc_ellipsoid_params.
The code in get_opt (part of pj_init.c), which handles whether or not an ellipsoid definition should be dragged in from proj_def.dat, has been rewritten. I suspect this was buggy beforehand, and at least the new code is easier to follow (although it may be slightly slower, which is not really a problem as it sits in the setup code, and hence is executed only once).
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* Replace pj_ell_set with reimplementation supporting ellipsoid inheritance
* remove unreachable code from pj_ell_set.c
* Swap steps, so ellps args are read first, in accordance with historical behaviour
* Add ellipsoid tests to CI targets
* Reduce some optimistic tolerances
OS/X appears to have a slightly off float handling, resulting in differences at the nanometer level. Switching to 10 nm.
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* Introduce geodetic-geocentric conversions, as PJ_xxx style conversion step and as API entry points
* minor improvements and minor bug squashing
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* Removed remaining traces of the builtin selftest system. Moved all functionality to test/gie
* Updated Appveyor and Travis build scripts
* Another appveyor script update
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* Poder dual autochecking implementation
* Debugging aid: Improvements in PJ_vgridshift.c and gie.c
* Most likely, the bugbeing tripped is in the gridshift code, so. uncomment suspicious lines in deformation.gie and merge this to support the debugging effort
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* enter proj_angular_input and proj_angular_output, exit proj_angular_left and proj_angular_right
* remove unused variable 'unit'
* In gie: remove unused func 'torad_if_needed', and add static keyword where needed
* In gie: add some comments
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PJ_OBS eliminated, API adjusted to reflect that we now have only one 4D data type.
2 new API functions added to determine output types of a PJ.
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* Remove PJ_OBS from the API surface, rename pj_obs_api.c to pj_4D_api.c
* Repair proj.def
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Fixes #173, #187 and #220
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* Adding info functions to proj.h API.
Four new functions are added with this commit: proj_info(), proj_pj_info(),
proj_grid_info() and proj_init_info(). Additionally four new data types are
added: PJ_INFO, PJ_PROJ_INFO, PJ_GRID_INFO and PJ_INIT_INFO. The functions
return the corresponding data types.
These functions allows users of the PROJ.4 library to get information about
various PROJ.4 entities and the library itself. The new data types are structs
that contain specific information about either the library instance, a PJ
instance, a grid or an init file. Together the four new functions cover a big
part of the functionality in the semi-public projects.h API and should hopefully
make it easier for user to migrate their code to the proj.h API in the future.
Besides covering already existing functionality in the old API, this commit
introduces the ability to add metadata to init-files. This is primarily added
to give users a way of knowing which version of the EPSG database they are
using, but it also comes in handy for other init-files. The init-file metadata
is added directly to the init-file as a special "projection" called "metadata".
The info projection of the epsg init-file is thus described as:
<metadata> +version=9.0.0 +origin=EPSG +lastupdate=2017-01-10
The proj_init_info() function uses the internal pj_param() to read the
metadata. As a consequence, "metadata" will not be available as a the name of
a projection in the future. This is a reasonable price to pay considering the
ease of the implementation of adding metadata to init-files this way, and of
course that "metadata" is a very unlikely name for a projection in any case.
A metadata tag has been added to all init-files in the nad-directory. For most
only a subset of the possible parameters has been added.
* Replaced calls to sprintf and strncpy with safer options. Added pj_strlcpy for internal use.
* Fail gracefully when getting non-initialized PJ in proj_pj_info()
* Change length of filename member in PJ_INIT_INFO and PJ_GRID_INFO to 260 (MAX_PATH)
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Expose pj_factors and pj_deriv in public API.
proj_derivatives() and proj_factors() has been
introduced to the public proj.h API. The new functions are simply
wrappers for the original functions. The h argument of the two functions
has been omitted in the new wrappers as it does not seem to be used very
much (if at all?).
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* obs_api revision and improvements: new namespace etc.
* Minor corrections: use unused functions, add missing prototype, added fwd/invcoord to PJ
* Minor correction: MSVC barfs on va_arg type specification. Trying once more with added parens
* Reverting paren correction, which appears to be a non-solution
* Significant improvements to the OBS_API, plus a number of corrections, mostly in test code, to reflect API changes
* Added two missing prototypes
* Adding the proj_transform function and some related checks
* Improvements to proj_transform etc. based on suggestions from Even Rouault
* Reducing the libc include footprint of proj.h - again based on suggestions from Even Rouault
* A few minor corrections
* Eliminate a MSVC warning about non-initialized usage. Not an actual issue, as another check has locked the path, but at least this should calm down MSVC
* Improved support for the errno reset/restore paradigm
* Introduced the internal header proj_internal.h; Moved most non-API stuff from pj_obs_api.c to pj_internal.c
* Adding proj_internal.h to HEADERS_LIBPROJ to solve build problems
* Correcting a few pj...proj blunders in PJ_pipeline.c
* Correcting a few additional blunders in PJ_pipeline.c
* Changed angle-brackets to quotation marks in includes of proj_internal.h
* Some minor build system repairs
* Some PJ_CONTEXT usage simplifications following suggestions by Kristian Evers @kbevers
* Added version numbering to proj.h - Fixes #529
* remove proj_errno_restore macro, provide function implementation
* Add proj_get_definition. Fixes #538
* Added library specific deallocator proj_buffer_free, eliminating a potential cross heap issues on Windows. Thx to Even Rouault for spotting this
* Got rid of a meaningless cast in proj_buffer_free
* Added some missing functions to proj.def (again spotted by @rouault); removed some not-yet-implemented material from proj.h
* Renamed proj_get_definition/proj_buffer_free to proj_definition_create/proj_definition_destroy, for symmetry and clarity
* Renaming the definition handlers to proj_definition_retrieve / proj_free
* Renaming proj_free to proj_release
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file.
Will help GDAL finding where +nadgrids=... or +geoidgrids=... resouces are located
to be able to directly open them.
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See https://ci.appveyor.com/project/OSGeo/proj-4/build/1.0.513/job/chsb12mrfkpbkbqj
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Introducing the Horner polynomial evaluator also introduces the need for
very long +init:tag arguments (a n'th order 2D polynomium has
(n+1)(n+2)/2 coefficients, and n is typically in the range 5-10, i.e. up
to around 60 coefficients for each polynomium, and there are 4 polynomia
in a complete back/forward transformation set).
Hence, in this commit, along with the first part of the Horner code, the
code for reading +init files has been modified in a (for all practical
purposes) backwards compatible way, by making it possible to introduce
line continuations by escaping line breaks, i.e. preceding them with a
backslash.
An escaped line break works (as it would in TeX), by skipping all
following whitespace, including interspersed #-comments. This simple
extension makes it possible to create very long initialization elements
without losing track of the structure (cf. s45b.pol and pj_init_test.c
in the examples-directory for a demo).
The s45b.pol file was created by hand-editing the output of the software
doing the original constrained adjustment for the polynomial
coefficients. The simple adding of the “skip following whitespace and
comments” feature has made it possible to retain almost all metadata
from the source material.
This is considered very important, since 1) For the lack of a prior
common file format for geodetic polynomial coefficients, there is a good
chance that this will become THE standard, at least for the time being,
and 2) Without the metadata represented, it will be very hard for a
human to debug code involving a slightly misrepresented polynomium.
Due to the current architecture of the pj_init.c code (mostly around the
fill_buffer() function), it is next to impossible to implement the line
continuation functionality in full generality. Hence, it has been
necessary to limit this format extension to files smaller than 64 kB.
* Correction of spherical HEALpix test case
The first HEALpix test case in nad/testvarious is clearly intended to
invoke the spherical form of HEALpix.
It does, however, specify the spheroid using the +a=1 size parameter,
without specifying any shape parameter.
But since +no_defs is not specified either, a shape parameter is picked
up from the nad/proj_def.dat file (where ellps=WGS84 is given in the
<general> section).
It appears that this has not happened before I updated the pj_init code to support projection
pipelines (see below). I do, however, believe that the present behaviour is the correct one,
and rather than retrohacking the pj_init code, to (incorrectly, I
believe) reproduce the prior behaviour, I have corrected the test case
invocation in nad/testvarious to specify the spheroid using the +R=1
size parameter (which was already used in the following test case).
* Repair scaling of projections stomping on value of semimajor axis
* Workaround MSVC HUGE_VAL misimplementation.
The "return const err object" idiom (i.e. const <type> err =
{HUGE_VAL,...}; ... if (bad) return err) is problematic to implement
due to MSVC's misimplementation of HUGE_VAL as a non-const.
Hence, we need to run-time initialize these. In the pj_inv functions,
this was mistakenly done to the wrong object.
For pj_fwdobs/invobs and the remaining part of the obs-based API, this
is now worked around by providing functions returning a run time
HUGE_VAL initialized PJ_OBS or PJ_COO resp.
Obnoxious, but given MSVC's market penetration there is really not much
else we can do.
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* re-enter pipeline
The pipeline interface is now internally based on the pj_obs_api, which
simplifies the implementation significantly.
This is the first mock up - it compiles fine, but is currently untested
* pipeline code cleaned up
The pipeline code is now based on the PJ_OBS api (although you can still
invoke a pipeline through pj_fwd/pj_inv and their 3D brethren).
This has made it possible to eliminate scores of funky casts and
convoluted workarounds. The code is now way more straightforward and
mostly conforming with common C idioms..
Also, the proj.h / obs_api interface to the logging system has been
streamlined through the introduction of the pj_log_error, pj_log_debug,
and pj_log_trace functions.
* Geodesics + minor changes
First proj.h style interface to Charles Karney's geodesics code:
pj_lp_dist.
Also, renamed pj_apply -> pj_trans
* Extended Ellipsoidal Parameters
Second eccentricity, second and third flattening etc.
* Rename pj_debug_set -> pj_log_level
... and add self test code for PJ_pipeline
* Clean up missing pj_apply->pj_trans
* Clean up missing pj_obs_dist_2d rename
* pj_strerrno bug fixed. Some doc/comments added
(In response to a review by @kbevers)
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(#445)
This commit reflects continued work on the new rationalized API with
geodetic extensions (see rationale in proj.h). It also reflects the
parallel work on the transformation pipeline reimplementation, by
introducing the PJ_cart cartesian/ellipsoidal converter.
See example/pj_obs_api_test.c for demo example code
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* Pipeline preliminaries
Introducing the PJ_OBSERVATION data type as the basis for generic geodetic
transformations.
Also introducing the elements of a new minimalistic API focused on
generic geodetic transformations. This API is documented in the new
proj.h header, and is orthogonal (non-intrusive) wrt. the existing API
from proj_api.h
Finally added a large amount of comments to the somewhat intractable
projects.h, and extended the PJ object with a number of additional
ellipsoidal parameters of general geodetic usefulness.
The PJ elements fwdobs and invobs extend fwd3d and inv3d in a homologous
way to how fwd3d and inv3d extend fwd and inv.
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projections natearth2 and comill to dll-build.
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- New SCH coordinate system for radar imaging systems
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Remove setlocale() use in pj_init_ctx(), and replace uses of atof() &
strtod() by their locale safe variants pj_atof() and pj_strtod().
Proj versions from now advertize #define PJ_LOCALE_SAFE 1 in proj_api.h
and export pj_atof() & pj_strtod()
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git-svn-id: http://svn.osgeo.org/metacrs/proj/trunk@2359 4e78687f-474d-0410-85f9-8d5e500ac6b2
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Syncs geodesic routines with GeographicLib. Adds geodesic.3 man page.
geod_* api exposed publically. geodesic.h is installed.
git-svn-id: http://svn.osgeo.org/metacrs/proj/trunk@2333 4e78687f-474d-0410-85f9-8d5e500ac6b2
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git-svn-id: http://svn.osgeo.org/metacrs/proj/trunk@1985 4e78687f-474d-0410-85f9-8d5e500ac6b2
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git-svn-id: http://svn.osgeo.org/metacrs/proj/trunk@1855 4e78687f-474d-0410-85f9-8d5e500ac6b2
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git-svn-id: http://svn.osgeo.org/metacrs/proj/trunk@1257 4e78687f-474d-0410-85f9-8d5e500ac6b2
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git-svn-id: http://svn.osgeo.org/metacrs/proj/trunk@1254 4e78687f-474d-0410-85f9-8d5e500ac6b2
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git-svn-id: http://svn.osgeo.org/metacrs/proj/trunk@1227 4e78687f-474d-0410-85f9-8d5e500ac6b2
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git-svn-id: http://svn.osgeo.org/metacrs/proj/trunk@1226 4e78687f-474d-0410-85f9-8d5e500ac6b2
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git-svn-id: http://svn.osgeo.org/metacrs/proj/trunk@1172 4e78687f-474d-0410-85f9-8d5e500ac6b2
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git-svn-id: http://svn.osgeo.org/metacrs/proj/trunk@1055 4e78687f-474d-0410-85f9-8d5e500ac6b2
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