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Functions should only be prefixed with 'pj_' when they can be used in
other parts of the code base and not just within a single file.
Takes care of the last step in #675.
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* Avoid using angle brackets for PROJ headers.
Switching from #include <proj.h> to #include "proj.h",
and correspondingly for projects.h and proj_api.h,
reduces the risk of accidentally picking up a system
installed older version of the header while building
a new version of PROJ.
* Also handle geodesic.h
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The error number should not be reset until a new instance of "operation
..." is reached. The ignore-feature initially worked by accident since
pj_errno was not being reset when calling proj_errno_reset. This was
fixed in #808, which subsequently caused ignored tests to fail.
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In pipelines including a Helmert shift, we need to run the test
through the 4D transformation interface, even though the input
coordinate system may be 2D.
This can be enforced by appending "0 0" to the 2D coordinate pair
in the accept instruction, which is sufficiently recognizable to
be considered an idiom for selecting 4D.
On return, however, (i.e. in the expect instruction), the last
dimensions will contain garbage, and this garbage will be
compared with "0 0" when computing the deviation.
This obviously leads to nonsensical results, which this commit
repairs by zeroing all dimensions *not given* in expect, before
computing the deviation.
Additionally, the test tolerance for geo/cartesian roundtrip
precision has been relaxed from picometer to nanometer level.
These tests have shown to intermittently bomb, and as the pm
level tolerance is probably a leftover from when deviation was
computed in degrees, not meter (and hence a factor of 111000
more tight than intended at its introduction) relaxing it
by a factor of 1000 makes ample sense.
Also, two new features, introduced while debugging this case
has been left in the code:
- improved reporting, for verbosity levels higher than 2
- a "skip" instruction, forcing all remaining work to be
skipped (i.e. run until something strange happens - then stop
to handle debugging, while avoiding additional garbage)
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Make 4D API fully 4D:
Remove PJ_XY, PJ_LP, PJ_XYZ, PJ_LPZ etc. from the API surface and
make all formal parameters of the API fully 4D PJ_COORD.
This operation primarily influences the proj_XXX_dist functions,
which mostly work by calling Charles Karney's geodesic
subsystem, keeping the distance, and throwing away the start and
end azimuths for the geodesic computed.
Also a PJ_GEOD(esic) persona is introduced for the PJ_COORD type.
The proj_geod function returns a PJ_GEOD, representing the geodesic
between the points represented by its PJ_COORD arguments.
Finally, the proj_factors functions had its lp argument changed
from PJ_LP to PJ_COORD.
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Also make corresponding sign corrections in a number of tests,
and comment out a few tests which work correctly, but report
failure since gie is not yet ready to handle unusual axis
orders in cases with angular output coordinates.
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* Shrink PJ_XXX_INFO structs, but keep same syntax.
A number of the fixed length strings in the INFO structs are simply
reflections of material that already exists as static strings at a
number of places in the library (or in the case of PJ_INFO, really
*should* exist, and now is implemented).
This PR replaces these cases of constant length strings with const
char pointers. The usage syntax is unchanged, and so is the nice
property of having the return value allocated on the stack, and
hence not requiring explicit memory management by the caller.
proj_info now only does setup once - and the searchpath entry of
PJ_INFO is not arbitrarily truncated at 512 bytes. Repeated calls
simply returns a copy of already prepared material.
The id, description and definition entries of PJ_PROJ_INFO are now
also guaranteed to hold the entire text of the corresponding static
string, by being represented by a const char pointer to that actual
static string.
PJ_GRID_INFO and PJ_INIT_INFO (i.e. the two smallest INFO structs)
are unchanged.
* Eliminate pj_strlcpy - not needed anymore: Remining calls could
safely be replaced by strncpy.
* Extend PROJ_INFO with paths from pj_set_searchpath.
NOTE: Need to call pj_set_searchpath before first call to proj_info
Huge thanks to Kristian Evers and Even Rouault for comments, debugging and advice.
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Introducing a new keyword 'skiperror' that when given a error
code like pjd_err_failed_to_load_grid will skip tests if that
error is returned when creating the operation. This is useful
for grids that can't be located.
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Additionally correct a spelling error in optargpm.h and
remove two lines of leftover cruft from gie.c
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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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Some macros seemed to be leftover from earlier code, so I removed them.
Others seemed like they should have been used, but weren't.
There should be no functional change, except the following: in floating-
point arithmetic, x / y is not the same as x * (1.0 / y). It can be
argued that using the multiplication is significantly faster, and the
algorithm is approximative anyway. Otherwise, the constants are
obviously not required.
Also fixes one location in PJ_aitoff.c, where an enumeration value
should have been used.
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Added the possibility to use custom unit factors. Similar to the
classic +to_meter parameter the conversion factor is related to meters,
i.e. the factor for conversion from kilometers meters is 1000. The
custom unit factors is given using the existing xy_in, xy_out, z_in and
z_out parameters, for example:
proj=unitconvert xy_in=4.5 +xy_out=mm
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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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* Some corrections in response to a review by Kristian Evers
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Having non-const variables of static lifetime or even global scope is
usually a bad idea. These variables are inherently constants, and this
should be enforced.
This required marking some functions as not modifying input parameters
and marking some pointers as pointers to const.
One advantage is that the compiler usually puts const static variables
in a read-only code segment, so they can't be modified physically.
This can be verified with `nm` (on POSIX systems).
To avoid changes to the public API, functions returning non-const
pointers to data tables were left intact, but the returned data may not
be modified. Internally we prefer using the proj_list_* functions over
the pj_get_*_ref functions, because the former return const pointers.
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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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Add time unit yyyymmdd to unitconvert operation
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Prefixing with t_ is more consistent with the existing parameters
in PROJ, such as x_0 and friends. t_epoch and t_obs is already used
in PJ_deformation. Now users can expect consistency across
time-varying transformations.
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* gie support for builtin errcodes, and other improvements
* allow lower case error constants
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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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* 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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proj_create is now indifferent whether or not proj definition terms start with a '+' character. Also, improve gie to support testing this.
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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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* Linguistics: Clarify this and that, here and there
* Revert nullification of PJ_cart->fwd, inv
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* Repair gie and cct after breakage due to proj_strtod update
* Remove unused variables
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In order to mimic strtod, proj_strtod now returns 0 and not HUGE_VAL on nonnumeric input. Hence, we must check the return pointers to identify an error.
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Add missing prototype for opt_strip_path()
A bunch of minor oops cleanups
Remove unused functiion cloumn()
Fighting the good fight trying to be *both* POSIX *and* Windows compatible
A few more improvements: 2 missing casts and a potentially uninitialized variable
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improved docs, improved strtod - avoid precision loss for very long fractions
Switch gie.c to use same framework as cct.c
numerous improvements in proj_strtod.c and gie.c
Add gie to the build system
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