PROJ/test, branch 8.1.0

Database: update to EPSG v10.027

2021-06-19T19:15:39+00:00

proj_trans/cs2cs: If two operations have the same accuracy, use the one that is contained within a larger one

2021-06-17T15:53:11+00:00

Relates to https://github.com/OSGeo/gdal/issues/3998

Before that change, cs2cs on a NAD83(HARN) to WGS84 transformation would
use the "NAD83(HARN) to WGS 84 (1)" transformation (a null Helmert
shift) that is valid for whole US, including non-CONUS areas, even when
used on points located on CONUS that has a "NAD83(HARN) to WGS 84 (3)"
transformation (non-null Helmert shift) with same accuracy (1m).

But if doing  EPSG:2874 "NAD83(HARN) / California zone 5 (ftUS)" to
WGS84, we would use this later "NAD83(HARN) to WGS 84 (3)"
transformation because the area of use of EPSG:2874 restricts to CONUS.
This isn't consistant.

With that change, we now have more consistent behavior, even if it can
be argued which of the 2 transformations is the best...

$ echo 34 -120 | src/cs2cs -d 8 EPSG:4326 "NAD83(HARN)" | src/cs2cs "NAD83(HARN)"  EPSG:2874
5955507.74	1828410.98 0.00

$ echo 34 -120 | src/cs2cs  EPSG:4326   EPSG:2874
5955507.74	1828410.98 0.00

BoundCRS::identify(): avoid incompatible transformation for WKT1 / TOWGS84 export (fixes OSGeo/gdal#3958)

2021-06-10T17:36:16+00:00

Check that database connection sharing properly works

2021-06-03T09:29:16+00:00

Make proj_context_set_autoclose_database() a no-op as it would defeat the purpose of the new database connection sharing

2021-06-03T09:29:16+00:00

factory.cpp: preparation steps for global sqlite3* handle, but no functional change

2021-06-03T09:29:16+00:00

test_c_api.cpp: avoid use of undefined .t component

2021-06-03T09:28:55+00:00

ConcatenatedOperation::fixStepsDirection(): remove recently introdued hack specific to EPSG:9731 now that is is deprecated

2021-05-27T09:57:05+00:00

Database: decrease DB size by using WITHOUT ROWID tables

2021-05-24T12:40:37+00:00

None of our tables are indexed by a INTEGER PRIMARY KEY, but most of
them are by a (auth_name, code) primary key. Consequently they can
benefit from being created as WITHOUT ROWID tables
(https://sqlite.org/withoutrowid.html), which avoids an index to be
created on the rowid we don't use. WITHOUT ROWID is a feature added in
SQLite 3.8.2, so as our baseline is 3.11, we can use it.

This decreases the DB size from 7,749,632 to 7,229,440 bytes, without
any measurable consequence on performance.

projsync: make it filter out files not intended for the current version

2021-05-17T14:00:12+00:00

* Add a PROJ_DATA.VERSION in proj.db to indicate the target PROJ-data
  package version
* Make projsync use that information and the version_added and
  version_removed properties added in https://github.com/OSGeo/PROJ-data/pull/67
  to filter out files that are not relevant
* Add --no-version-filtering and --verbose switches