From b2ca8e5f6b1879d88312188fc9de24e0f32daf73 Mon Sep 17 00:00:00 2001 From: Even Rouault Date: Tue, 3 Mar 2020 19:42:44 +0100 Subject: createUnitOfMeasure(): use full double resolution for the conversion factor (#2011) Fixes https://github.com/OSGeo/gdal/issues/2290 where it was found that PROJ returned value for conversion factor of US Survey Foot unit wasn't at the maximum resolution, but only accurate to 15 significant digits. --- test/unit/test_factory.cpp | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'test') diff --git a/test/unit/test_factory.cpp b/test/unit/test_factory.cpp index 4f6f2c93..c7ae458e 100644 --- a/test/unit/test_factory.cpp +++ b/test/unit/test_factory.cpp @@ -95,6 +95,14 @@ TEST(factory, AuthorityFactory_createUnitOfMeasure_linear) { // --------------------------------------------------------------------------- +TEST(factory, AuthorityFactory_createUnitOfMeasure_linear_us_survey_foot) { + auto factory = AuthorityFactory::create(DatabaseContext::create(), "EPSG"); + auto uom = factory->createUnitOfMeasure("9003"); + EXPECT_EQ(uom->conversionToSI(), 12. / 39.37); +} + +// --------------------------------------------------------------------------- + TEST(factory, AuthorityFactory_createUnitOfMeasure_angular) { auto factory = AuthorityFactory::create(DatabaseContext::create(), "EPSG"); auto uom = factory->createUnitOfMeasure("9102"); -- cgit v1.2.3