aboutsummaryrefslogtreecommitdiff
path: root/data/sql/proj_db_table_defs.sql
AgeCommit message (Collapse)Author
2019-11-02Add a geoid_model name in database, use GEOIDMODEL for transformations, add ↵Even Rouault
a proj_create_vertical_crs_ex()
2019-10-27Database: add an auxiliary concatenated_operation_step table to allow ↵Even Rouault
arbitrary number of steps (fixes #1632) EPSG:9103 (NAD27 to ITRF2014 (1)) is now handled. Note:EPSG:9104 (NAD27 to ITRF2014 (2)) is not currently, since it uses for step EPSG:8861 (NAD83(HARN) to NAD83(FBN) (1)) an unsupported transformation method (NADCON5 (3D), EPSG:1075).
2019-09-12Coordinate transformation: improve transformations from/to WGS84 (Gxxxx)Even Rouault
Currently very few transformations from/to WGS84 (Gxxxx) are registered in the EPSG database, and there isn't even transformations between WGS84 EPSG:4326 and those ones. Consequently transformations to those realizations often ended up as no-operation, whereas going through WGS84 EPSG:4326 will bring more meaningful results. So register those EPSG:4326<-->WGS 84 (Gxxx) null transformations, and when having WGS 84 (Gxxx) as source/target, consider EPSG:4326 as an intermediate. This change has no effect on the existing direct transformations from/to WGS 84 (Gxxx).
2019-04-22Database: add checks to verify consistency of deprecated flagEven Rouault
2019-04-22Database: make conversion & helmert_transformation updatable viewsEven Rouault
- Transform conversion as a view, and when inserting into it, actually insert into 3 tables: conversion_table, conversion_method and conversion_param, so that method and parameter names are not repeated each time. - Similarly for helmert_tranformation, insert into helmert_transformation_tabl and coordinate_operation_method. This reduces the db size from 6 344 704 bytes to 5 853 184 bytes, without significant slowdown for queries.
2019-03-25Database: add operation_version column to coordinate operation tablesEven Rouault
2018-12-06Add API to retrieve non-deprecated equivalent of an objectEven Rouault
2018-12-06Coordinate operation search: add a authority_to_authority_preference table ↵Even Rouault
to restrict and prioritize searches
2018-12-06Take into account supersession information to filter out irrelevant ↵Even Rouault
transformations
2018-11-14Implement RFC 2: Initial integration of "GDAL SRS barn" workEven Rouault
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