/
crs.cpp
6218 lines (5366 loc) · 230 KB
/
crs.cpp
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/******************************************************************************
*
* Project: PROJ
* Purpose: ISO19111:2019 implementation
* Author: Even Rouault <even dot rouault at spatialys dot com>
*
******************************************************************************
* Copyright (c) 2018, Even Rouault <even dot rouault at spatialys dot com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
#ifndef FROM_PROJ_CPP
#define FROM_PROJ_CPP
#endif
//! @cond Doxygen_Suppress
#define DO_NOT_DEFINE_EXTERN_DERIVED_CRS_TEMPLATE
//! @endcond
#include "proj/crs.hpp"
#include "proj/common.hpp"
#include "proj/coordinateoperation.hpp"
#include "proj/coordinatesystem.hpp"
#include "proj/io.hpp"
#include "proj/util.hpp"
#include "proj/internal/coordinatesystem_internal.hpp"
#include "proj/internal/internal.hpp"
#include "proj/internal/io_internal.hpp"
#include "proj_constants.h"
#include "proj_json_streaming_writer.hpp"
#include <algorithm>
#include <cassert>
#include <cmath>
#include <cstring>
#include <iostream>
#include <memory>
#include <string>
#include <vector>
using namespace NS_PROJ::internal;
#if 0
namespace dropbox{ namespace oxygen {
template<> nn<NS_PROJ::crs::CRSPtr>::~nn() = default;
template<> nn<NS_PROJ::crs::SingleCRSPtr>::~nn() = default;
template<> nn<NS_PROJ::crs::GeodeticCRSPtr>::~nn() = default;
template<> nn<NS_PROJ::crs::GeographicCRSPtr>::~nn() = default;
template<> nn<NS_PROJ::crs::DerivedCRSPtr>::~nn() = default;
template<> nn<NS_PROJ::crs::ProjectedCRSPtr>::~nn() = default;
template<> nn<NS_PROJ::crs::VerticalCRSPtr>::~nn() = default;
template<> nn<NS_PROJ::crs::CompoundCRSPtr>::~nn() = default;
template<> nn<NS_PROJ::crs::TemporalCRSPtr>::~nn() = default;
template<> nn<NS_PROJ::crs::EngineeringCRSPtr>::~nn() = default;
template<> nn<NS_PROJ::crs::ParametricCRSPtr>::~nn() = default;
template<> nn<NS_PROJ::crs::BoundCRSPtr>::~nn() = default;
template<> nn<NS_PROJ::crs::DerivedGeodeticCRSPtr>::~nn() = default;
template<> nn<NS_PROJ::crs::DerivedGeographicCRSPtr>::~nn() = default;
template<> nn<NS_PROJ::crs::DerivedProjectedCRSPtr>::~nn() = default;
template<> nn<NS_PROJ::crs::DerivedVerticalCRSPtr>::~nn() = default;
template<> nn<NS_PROJ::crs::DerivedTemporalCRSPtr>::~nn() = default;
template<> nn<NS_PROJ::crs::DerivedEngineeringCRSPtr>::~nn() = default;
template<> nn<NS_PROJ::crs::DerivedParametricCRSPtr>::~nn() = default;
}}
#endif
NS_PROJ_START
namespace crs {
// ---------------------------------------------------------------------------
//! @cond Doxygen_Suppress
struct CRS::Private {
BoundCRSPtr canonicalBoundCRS_{};
std::string extensionProj4_{};
bool implicitCS_ = false;
bool allowNonConformantWKT1Export_ = false;
// for what was initially a COMPD_CS with a VERT_CS with a datum type ==
// ellipsoidal height / 2002
CompoundCRSPtr originalCompoundCRS_{};
void setImplicitCS(const util::PropertyMap &properties) {
const auto pVal = properties.get("IMPLICIT_CS");
if (pVal) {
if (const auto genVal =
dynamic_cast<const util::BoxedValue *>(pVal->get())) {
if (genVal->type() == util::BoxedValue::Type::BOOLEAN &&
genVal->booleanValue()) {
implicitCS_ = true;
}
}
}
}
};
//! @endcond
// ---------------------------------------------------------------------------
CRS::CRS() : d(internal::make_unique<Private>()) {}
// ---------------------------------------------------------------------------
CRS::CRS(const CRS &other)
: ObjectUsage(other), d(internal::make_unique<Private>(*(other.d))) {}
// ---------------------------------------------------------------------------
//! @cond Doxygen_Suppress
CRS::~CRS() = default;
//! @endcond
// ---------------------------------------------------------------------------
/** \brief Return the BoundCRS potentially attached to this CRS.
*
* In the case this method is called on a object returned by
* BoundCRS::baseCRSWithCanonicalBoundCRS(), this method will return this
* BoundCRS
*
* @return a BoundCRSPtr, that might be null.
*/
const BoundCRSPtr &CRS::canonicalBoundCRS() PROJ_PURE_DEFN {
return d->canonicalBoundCRS_;
}
// ---------------------------------------------------------------------------
/** \brief Return the GeodeticCRS of the CRS.
*
* Returns the GeodeticCRS contained in a CRS. This works currently with
* input parameters of type GeodeticCRS or derived, ProjectedCRS,
* CompoundCRS or BoundCRS.
*
* @return a GeodeticCRSPtr, that might be null.
*/
GeodeticCRSPtr CRS::extractGeodeticCRS() const {
auto raw = extractGeodeticCRSRaw();
if (raw) {
return std::dynamic_pointer_cast<GeodeticCRS>(
raw->shared_from_this().as_nullable());
}
return nullptr;
}
// ---------------------------------------------------------------------------
//! @cond Doxygen_Suppress
const GeodeticCRS *CRS::extractGeodeticCRSRaw() const {
auto geodCRS = dynamic_cast<const GeodeticCRS *>(this);
if (geodCRS) {
return geodCRS;
}
auto projCRS = dynamic_cast<const ProjectedCRS *>(this);
if (projCRS) {
return projCRS->baseCRS()->extractGeodeticCRSRaw();
}
auto compoundCRS = dynamic_cast<const CompoundCRS *>(this);
if (compoundCRS) {
for (const auto &subCrs : compoundCRS->componentReferenceSystems()) {
auto retGeogCRS = subCrs->extractGeodeticCRSRaw();
if (retGeogCRS) {
return retGeogCRS;
}
}
}
auto boundCRS = dynamic_cast<const BoundCRS *>(this);
if (boundCRS) {
return boundCRS->baseCRS()->extractGeodeticCRSRaw();
}
return nullptr;
}
//! @endcond
// ---------------------------------------------------------------------------
//! @cond Doxygen_Suppress
const std::string &CRS::getExtensionProj4() const noexcept {
return d->extensionProj4_;
}
//! @endcond
// ---------------------------------------------------------------------------
/** \brief Return the GeographicCRS of the CRS.
*
* Returns the GeographicCRS contained in a CRS. This works currently with
* input parameters of type GeographicCRS or derived, ProjectedCRS,
* CompoundCRS or BoundCRS.
*
* @return a GeographicCRSPtr, that might be null.
*/
GeographicCRSPtr CRS::extractGeographicCRS() const {
auto raw = extractGeodeticCRSRaw();
if (raw) {
return std::dynamic_pointer_cast<GeographicCRS>(
raw->shared_from_this().as_nullable());
}
return nullptr;
}
// ---------------------------------------------------------------------------
//! @cond Doxygen_Suppress
static util::PropertyMap
createPropertyMap(const common::IdentifiedObject *obj) {
auto props = util::PropertyMap().set(common::IdentifiedObject::NAME_KEY,
obj->nameStr());
if (obj->isDeprecated()) {
props.set(common::IdentifiedObject::DEPRECATED_KEY, true);
}
return props;
}
//! @endcond
// ---------------------------------------------------------------------------
//! @cond Doxygen_Suppress
CRSNNPtr CRS::alterGeodeticCRS(const GeodeticCRSNNPtr &newGeodCRS) const {
auto geodCRS = dynamic_cast<const GeodeticCRS *>(this);
if (geodCRS) {
return newGeodCRS;
}
auto projCRS = dynamic_cast<const ProjectedCRS *>(this);
if (projCRS) {
return ProjectedCRS::create(createPropertyMap(this), newGeodCRS,
projCRS->derivingConversion(),
projCRS->coordinateSystem());
}
auto compoundCRS = dynamic_cast<const CompoundCRS *>(this);
if (compoundCRS) {
std::vector<CRSNNPtr> components;
for (const auto &subCrs : compoundCRS->componentReferenceSystems()) {
components.emplace_back(subCrs->alterGeodeticCRS(newGeodCRS));
}
return CompoundCRS::create(createPropertyMap(this), components);
}
return NN_NO_CHECK(
std::dynamic_pointer_cast<CRS>(shared_from_this().as_nullable()));
}
//! @endcond
// ---------------------------------------------------------------------------
//! @cond Doxygen_Suppress
CRSNNPtr CRS::alterCSLinearUnit(const common::UnitOfMeasure &unit) const {
{
auto projCRS = dynamic_cast<const ProjectedCRS *>(this);
if (projCRS) {
return ProjectedCRS::create(
createPropertyMap(this), projCRS->baseCRS(),
projCRS->derivingConversion(),
projCRS->coordinateSystem()->alterUnit(unit));
}
}
{
auto geodCRS = dynamic_cast<const GeodeticCRS *>(this);
if (geodCRS && geodCRS->isGeocentric()) {
auto cs = dynamic_cast<const cs::CartesianCS *>(
geodCRS->coordinateSystem().get());
assert(cs);
return GeodeticCRS::create(
createPropertyMap(this), geodCRS->datum(),
geodCRS->datumEnsemble(), cs->alterUnit(unit));
}
}
{
auto geogCRS = dynamic_cast<const GeographicCRS *>(this);
if (geogCRS && geogCRS->coordinateSystem()->axisList().size() == 3) {
return GeographicCRS::create(
createPropertyMap(this), geogCRS->datum(),
geogCRS->datumEnsemble(),
geogCRS->coordinateSystem()->alterLinearUnit(unit));
}
}
{
auto vertCRS = dynamic_cast<const VerticalCRS *>(this);
if (vertCRS) {
return VerticalCRS::create(
createPropertyMap(this), vertCRS->datum(),
vertCRS->datumEnsemble(),
vertCRS->coordinateSystem()->alterUnit(unit));
}
}
{
auto engCRS = dynamic_cast<const EngineeringCRS *>(this);
if (engCRS) {
auto cartCS = util::nn_dynamic_pointer_cast<cs::CartesianCS>(
engCRS->coordinateSystem());
if (cartCS) {
return EngineeringCRS::create(createPropertyMap(this),
engCRS->datum(),
cartCS->alterUnit(unit));
} else {
auto vertCS = util::nn_dynamic_pointer_cast<cs::VerticalCS>(
engCRS->coordinateSystem());
if (vertCS) {
return EngineeringCRS::create(createPropertyMap(this),
engCRS->datum(),
vertCS->alterUnit(unit));
}
}
}
}
return NN_NO_CHECK(
std::dynamic_pointer_cast<CRS>(shared_from_this().as_nullable()));
}
//! @endcond
// ---------------------------------------------------------------------------
/** \brief Return the VerticalCRS of the CRS.
*
* Returns the VerticalCRS contained in a CRS. This works currently with
* input parameters of type VerticalCRS or derived, CompoundCRS or BoundCRS.
*
* @return a VerticalCRSPtr, that might be null.
*/
VerticalCRSPtr CRS::extractVerticalCRS() const {
auto vertCRS = dynamic_cast<const VerticalCRS *>(this);
if (vertCRS) {
return std::dynamic_pointer_cast<VerticalCRS>(
shared_from_this().as_nullable());
}
auto compoundCRS = dynamic_cast<const CompoundCRS *>(this);
if (compoundCRS) {
for (const auto &subCrs : compoundCRS->componentReferenceSystems()) {
auto retVertCRS = subCrs->extractVerticalCRS();
if (retVertCRS) {
return retVertCRS;
}
}
}
auto boundCRS = dynamic_cast<const BoundCRS *>(this);
if (boundCRS) {
return boundCRS->baseCRS()->extractVerticalCRS();
}
return nullptr;
}
// ---------------------------------------------------------------------------
/** \brief Returns potentially
* a BoundCRS, with a transformation to EPSG:4326, wrapping this CRS
*
* If no such BoundCRS is possible, the object will be returned.
*
* The purpose of this method is to be able to format a PROJ.4 string with
* a +towgs84 parameter or a WKT1:GDAL string with a TOWGS node.
*
* This method will fetch the GeographicCRS of this CRS and find a
* transformation to EPSG:4326 using the domain of the validity of the main CRS,
* and there's only one Helmert transformation.
*
* @return a CRS.
*/
CRSNNPtr CRS::createBoundCRSToWGS84IfPossible(
const io::DatabaseContextPtr &dbContext,
operation::CoordinateOperationContext::IntermediateCRSUse
allowIntermediateCRSUse) const {
auto thisAsCRS = NN_NO_CHECK(
std::static_pointer_cast<CRS>(shared_from_this().as_nullable()));
auto boundCRS = util::nn_dynamic_pointer_cast<BoundCRS>(thisAsCRS);
if (!boundCRS) {
boundCRS = canonicalBoundCRS();
}
if (boundCRS) {
if (boundCRS->hubCRS()->_isEquivalentTo(
GeographicCRS::EPSG_4326.get(),
util::IComparable::Criterion::EQUIVALENT, dbContext)) {
return NN_NO_CHECK(boundCRS);
}
}
auto geodCRS = util::nn_dynamic_pointer_cast<GeodeticCRS>(thisAsCRS);
auto geogCRS = extractGeographicCRS();
auto hubCRS = util::nn_static_pointer_cast<CRS>(GeographicCRS::EPSG_4326);
if (geodCRS && !geogCRS) {
if (geodCRS->_isEquivalentTo(GeographicCRS::EPSG_4978.get(),
util::IComparable::Criterion::EQUIVALENT,
dbContext)) {
return thisAsCRS;
}
hubCRS = util::nn_static_pointer_cast<CRS>(GeodeticCRS::EPSG_4978);
} else if (!geogCRS ||
geogCRS->_isEquivalentTo(
GeographicCRS::EPSG_4326.get(),
util::IComparable::Criterion::EQUIVALENT, dbContext)) {
return thisAsCRS;
} else {
geodCRS = geogCRS;
}
if (!dbContext) {
return thisAsCRS;
}
const auto &l_domains = domains();
metadata::ExtentPtr extent;
if (!l_domains.empty()) {
extent = l_domains[0]->domainOfValidity();
}
std::string crs_authority;
const auto &l_identifiers = identifiers();
// If the object has an authority, restrict the transformations to
// come from that codespace too. This avoids for example EPSG:4269
// (NAD83) to use a (dubious) ESRI transformation.
if (!l_identifiers.empty()) {
crs_authority = *(l_identifiers[0]->codeSpace());
}
auto authorities = dbContext->getAllowedAuthorities(crs_authority, "EPSG");
if (authorities.empty()) {
authorities.emplace_back();
}
for (const auto &authority : authorities) {
try {
auto authFactory = io::AuthorityFactory::create(
NN_NO_CHECK(dbContext),
authority == "any" ? std::string() : authority);
auto ctxt = operation::CoordinateOperationContext::create(
authFactory, extent, 0.0);
ctxt->setAllowUseIntermediateCRS(allowIntermediateCRSUse);
// ctxt->setSpatialCriterion(
// operation::CoordinateOperationContext::SpatialCriterion::PARTIAL_INTERSECTION);
auto list =
operation::CoordinateOperationFactory::create()
->createOperations(NN_NO_CHECK(geodCRS), hubCRS, ctxt);
CRSPtr candidateBoundCRS;
for (const auto &op : list) {
auto transf =
util::nn_dynamic_pointer_cast<operation::Transformation>(
op);
if (transf && !starts_with(transf->nameStr(), "Ballpark geo")) {
try {
transf->getTOWGS84Parameters();
} catch (const std::exception &) {
continue;
}
if (candidateBoundCRS) {
candidateBoundCRS = nullptr;
break;
}
candidateBoundCRS =
BoundCRS::create(thisAsCRS, hubCRS, NN_NO_CHECK(transf))
.as_nullable();
} else {
auto concatenated =
dynamic_cast<const operation::ConcatenatedOperation *>(
op.get());
if (concatenated) {
// Case for EPSG:4807 / "NTF (Paris)" that is made of a
// longitude rotation followed by a Helmert
// The prime meridian shift will be accounted elsewhere
const auto &subops = concatenated->operations();
if (subops.size() == 2) {
auto firstOpIsTransformation =
dynamic_cast<const operation::Transformation *>(
subops[0].get());
auto firstOpIsConversion =
dynamic_cast<const operation::Conversion *>(
subops[0].get());
if ((firstOpIsTransformation &&
firstOpIsTransformation
->isLongitudeRotation()) ||
(dynamic_cast<DerivedCRS *>(thisAsCRS.get()) &&
firstOpIsConversion)) {
transf = util::nn_dynamic_pointer_cast<
operation::Transformation>(subops[1]);
if (transf &&
!starts_with(transf->nameStr(),
"Ballpark geo")) {
try {
transf->getTOWGS84Parameters();
} catch (const std::exception &) {
continue;
}
if (candidateBoundCRS) {
candidateBoundCRS = nullptr;
break;
}
candidateBoundCRS =
BoundCRS::create(thisAsCRS, hubCRS,
NN_NO_CHECK(transf))
.as_nullable();
}
}
}
}
}
}
if (candidateBoundCRS) {
return NN_NO_CHECK(candidateBoundCRS);
}
} catch (const std::exception &) {
}
}
return thisAsCRS;
}
// ---------------------------------------------------------------------------
/** \brief Returns a CRS whose coordinate system does not contain a vertical
* component
*
* @return a CRS.
*/
CRSNNPtr CRS::stripVerticalComponent() const {
auto self = NN_NO_CHECK(
std::dynamic_pointer_cast<CRS>(shared_from_this().as_nullable()));
auto geogCRS = dynamic_cast<const GeographicCRS *>(this);
if (geogCRS) {
const auto &axisList = geogCRS->coordinateSystem()->axisList();
if (axisList.size() == 3) {
auto cs = cs::EllipsoidalCS::create(util::PropertyMap(),
axisList[0], axisList[1]);
return util::nn_static_pointer_cast<CRS>(GeographicCRS::create(
util::PropertyMap().set(common::IdentifiedObject::NAME_KEY,
nameStr()),
geogCRS->datum(), geogCRS->datumEnsemble(), cs));
}
}
auto projCRS = dynamic_cast<const ProjectedCRS *>(this);
if (projCRS) {
const auto &axisList = projCRS->coordinateSystem()->axisList();
if (axisList.size() == 3) {
auto cs = cs::CartesianCS::create(util::PropertyMap(), axisList[0],
axisList[1]);
return util::nn_static_pointer_cast<CRS>(ProjectedCRS::create(
util::PropertyMap().set(common::IdentifiedObject::NAME_KEY,
nameStr()),
projCRS->baseCRS(), projCRS->derivingConversion(), cs));
}
}
return self;
}
// ---------------------------------------------------------------------------
//! @cond Doxygen_Suppress
/** \brief Return a shallow clone of this object. */
CRSNNPtr CRS::shallowClone() const { return _shallowClone(); }
//! @endcond
// ---------------------------------------------------------------------------
//! @cond Doxygen_Suppress
CRSNNPtr CRS::allowNonConformantWKT1Export() const {
const auto boundCRS = dynamic_cast<const BoundCRS *>(this);
if (boundCRS) {
return BoundCRS::create(
boundCRS->baseCRS()->allowNonConformantWKT1Export(),
boundCRS->hubCRS(), boundCRS->transformation());
}
auto crs(shallowClone());
crs->d->allowNonConformantWKT1Export_ = true;
return crs;
}
//! @endcond
// ---------------------------------------------------------------------------
//! @cond Doxygen_Suppress
CRSNNPtr
CRS::attachOriginalCompoundCRS(const CompoundCRSNNPtr &compoundCRS) const {
const auto boundCRS = dynamic_cast<const BoundCRS *>(this);
if (boundCRS) {
return BoundCRS::create(
boundCRS->baseCRS()->attachOriginalCompoundCRS(compoundCRS),
boundCRS->hubCRS(), boundCRS->transformation());
}
auto crs(shallowClone());
crs->d->originalCompoundCRS_ = compoundCRS.as_nullable();
return crs;
}
//! @endcond
// ---------------------------------------------------------------------------
//! @cond Doxygen_Suppress
CRSNNPtr CRS::alterName(const std::string &newName) const {
auto crs = shallowClone();
auto newNameMod(newName);
auto props = util::PropertyMap();
if (ends_with(newNameMod, " (deprecated)")) {
newNameMod.resize(newNameMod.size() - strlen(" (deprecated)"));
props.set(common::IdentifiedObject::DEPRECATED_KEY, true);
}
props.set(common::IdentifiedObject::NAME_KEY, newNameMod);
crs->setProperties(props);
return crs;
}
//! @endcond
// ---------------------------------------------------------------------------
//! @cond Doxygen_Suppress
CRSNNPtr CRS::alterId(const std::string &authName,
const std::string &code) const {
auto crs = shallowClone();
auto props = util::PropertyMap();
props.set(metadata::Identifier::CODESPACE_KEY, authName)
.set(metadata::Identifier::CODE_KEY, code);
crs->setProperties(props);
return crs;
}
//! @endcond
// ---------------------------------------------------------------------------
//! @cond Doxygen_Suppress
static bool mustAxisOrderBeSwitchedForVisualizationInternal(
const std::vector<cs::CoordinateSystemAxisNNPtr> &axisList) {
const auto &dir0 = axisList[0]->direction();
const auto &dir1 = axisList[1]->direction();
if (&dir0 == &cs::AxisDirection::NORTH &&
&dir1 == &cs::AxisDirection::EAST) {
return true;
}
// Address EPSG:32661 "WGS 84 / UPS North (N,E)"
if (&dir0 == &cs::AxisDirection::SOUTH &&
&dir1 == &cs::AxisDirection::SOUTH) {
const auto &meridian0 = axisList[0]->meridian();
const auto &meridian1 = axisList[1]->meridian();
return meridian0 != nullptr && meridian1 != nullptr &&
std::abs(meridian0->longitude().convertToUnit(
common::UnitOfMeasure::DEGREE) -
180.0) < 1e-10 &&
std::abs(meridian1->longitude().convertToUnit(
common::UnitOfMeasure::DEGREE) -
90.0) < 1e-10;
}
if (&dir0 == &cs::AxisDirection::NORTH &&
&dir1 == &cs::AxisDirection::NORTH) {
const auto &meridian0 = axisList[0]->meridian();
const auto &meridian1 = axisList[1]->meridian();
return meridian0 != nullptr && meridian1 != nullptr &&
((
// Address EPSG:32761 "WGS 84 / UPS South (N,E)"
std::abs(meridian0->longitude().convertToUnit(
common::UnitOfMeasure::DEGREE) -
0.0) < 1e-10 &&
std::abs(meridian1->longitude().convertToUnit(
common::UnitOfMeasure::DEGREE) -
90.0) < 1e-10) ||
// Address EPSG:5482 "RSRGD2000 / RSPS2000"
(std::abs(meridian0->longitude().convertToUnit(
common::UnitOfMeasure::DEGREE) -
180) < 1e-10 &&
std::abs(meridian1->longitude().convertToUnit(
common::UnitOfMeasure::DEGREE) -
-90.0) < 1e-10));
}
return false;
}
// ---------------------------------------------------------------------------
bool CRS::mustAxisOrderBeSwitchedForVisualization() const {
const CompoundCRS *compoundCRS = dynamic_cast<const CompoundCRS *>(this);
if (compoundCRS) {
const auto &comps = compoundCRS->componentReferenceSystems();
if (!comps.empty()) {
return comps[0]->mustAxisOrderBeSwitchedForVisualization();
}
}
const GeographicCRS *geogCRS = dynamic_cast<const GeographicCRS *>(this);
if (geogCRS) {
return mustAxisOrderBeSwitchedForVisualizationInternal(
geogCRS->coordinateSystem()->axisList());
}
const ProjectedCRS *projCRS = dynamic_cast<const ProjectedCRS *>(this);
if (projCRS) {
return mustAxisOrderBeSwitchedForVisualizationInternal(
projCRS->coordinateSystem()->axisList());
}
return false;
}
//! @endcond
// ---------------------------------------------------------------------------
//! @cond Doxygen_Suppress
CRSNNPtr CRS::normalizeForVisualization() const {
auto props = util::PropertyMap().set(
common::IdentifiedObject::NAME_KEY,
nameStr() + " (with axis order normalized for visualization)");
const CompoundCRS *compoundCRS = dynamic_cast<const CompoundCRS *>(this);
if (compoundCRS) {
const auto &comps = compoundCRS->componentReferenceSystems();
if (!comps.empty()) {
std::vector<CRSNNPtr> newComps;
newComps.emplace_back(comps[0]->normalizeForVisualization());
for (size_t i = 1; i < comps.size(); i++) {
newComps.emplace_back(comps[i]);
}
return util::nn_static_pointer_cast<CRS>(
CompoundCRS::create(props, newComps));
}
}
const GeographicCRS *geogCRS = dynamic_cast<const GeographicCRS *>(this);
if (geogCRS) {
const auto &axisList = geogCRS->coordinateSystem()->axisList();
if (mustAxisOrderBeSwitchedForVisualizationInternal(axisList)) {
auto cs = axisList.size() == 2
? cs::EllipsoidalCS::create(util::PropertyMap(),
axisList[1], axisList[0])
: cs::EllipsoidalCS::create(util::PropertyMap(),
axisList[1], axisList[0],
axisList[2]);
return util::nn_static_pointer_cast<CRS>(GeographicCRS::create(
props, geogCRS->datum(), geogCRS->datumEnsemble(), cs));
}
}
const ProjectedCRS *projCRS = dynamic_cast<const ProjectedCRS *>(this);
if (projCRS) {
const auto &axisList = projCRS->coordinateSystem()->axisList();
if (mustAxisOrderBeSwitchedForVisualizationInternal(axisList)) {
auto cs =
axisList.size() == 2
? cs::CartesianCS::create(util::PropertyMap(), axisList[1],
axisList[0])
: cs::CartesianCS::create(util::PropertyMap(), axisList[1],
axisList[0], axisList[2]);
return util::nn_static_pointer_cast<CRS>(ProjectedCRS::create(
props, projCRS->baseCRS(), projCRS->derivingConversion(), cs));
}
}
return NN_NO_CHECK(
std::static_pointer_cast<CRS>(shared_from_this().as_nullable()));
}
//! @endcond
// ---------------------------------------------------------------------------
/** \brief Identify the CRS with reference CRSs.
*
* The candidate CRSs are either hard-coded, or looked in the database when
* authorityFactory is not null.
*
* Note that the implementation uses a set of heuristics to have a good
* compromise of successful identifications over execution time. It might miss
* legitimate matches in some circumstances.
*
* The method returns a list of matching reference CRS, and the percentage
* (0-100) of confidence in the match. The list is sorted by decreasing
* confidence.
* <ul>
* <li>100% means that the name of the reference entry
* perfectly matches the CRS name, and both are equivalent. In which case a
* single result is returned.
* Note: in the case of a GeographicCRS whose axis
* order is implicit in the input definition (for example ESRI WKT), then axis
* order is ignored for the purpose of identification. That is the CRS built
* from
* GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],
* PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]
* will be identified to EPSG:4326, but will not pass a
* isEquivalentTo(EPSG_4326, util::IComparable::Criterion::EQUIVALENT) test,
* but rather isEquivalentTo(EPSG_4326,
* util::IComparable::Criterion::EQUIVALENT_EXCEPT_AXIS_ORDER_GEOGCRS)
* </li>
* <li>90% means that CRS are equivalent, but the names are not exactly the
* same.</li>
* <li>70% means that CRS are equivalent), but the names do not match at
* all.</li>
* <li>25% means that the CRS are not equivalent, but there is some similarity
* in
* the names.</li>
* </ul>
* Other confidence values may be returned by some specialized implementations.
*
* This is implemented for GeodeticCRS, ProjectedCRS, VerticalCRS and
* CompoundCRS.
*
* @param authorityFactory Authority factory (or null, but degraded
* functionality)
* @return a list of matching reference CRS, and the percentage (0-100) of
* confidence in the match.
*/
std::list<std::pair<CRSNNPtr, int>>
CRS::identify(const io::AuthorityFactoryPtr &authorityFactory) const {
return _identify(authorityFactory);
}
// ---------------------------------------------------------------------------
/** \brief Return CRSs that are non-deprecated substitutes for the current CRS.
*/
std::list<CRSNNPtr>
CRS::getNonDeprecated(const io::DatabaseContextNNPtr &dbContext) const {
std::list<CRSNNPtr> res;
const auto &l_identifiers = identifiers();
if (l_identifiers.empty()) {
return res;
}
const char *tableName = nullptr;
if (dynamic_cast<const GeodeticCRS *>(this)) {
tableName = "geodetic_crs";
} else if (dynamic_cast<const ProjectedCRS *>(this)) {
tableName = "projected_crs";
} else if (dynamic_cast<const VerticalCRS *>(this)) {
tableName = "vertical_crs";
} else if (dynamic_cast<const CompoundCRS *>(this)) {
tableName = "compound_crs";
}
if (!tableName) {
return res;
}
const auto &id = l_identifiers[0];
auto tmpRes =
dbContext->getNonDeprecated(tableName, *(id->codeSpace()), id->code());
for (const auto &pair : tmpRes) {
res.emplace_back(io::AuthorityFactory::create(dbContext, pair.first)
->createCoordinateReferenceSystem(pair.second));
}
return res;
}
// ---------------------------------------------------------------------------
/** \brief Return a variant of this CRS "promoted" to a 3D one, if not already
* the case.
*
* The new axis will be ellipsoidal height, oriented upwards, and with metre
* units.
*
* @param newName Name of the new CRS. If empty, nameStr() will be used.
* @param dbContext Database context to look for potentially already registered
* 3D CRS. May be nullptr.
* @return a new CRS promoted to 3D, or the current one if already 3D or not
* applicable.
* @since 6.3
*/
CRSNNPtr CRS::promoteTo3D(const std::string &newName,
const io::DatabaseContextPtr &dbContext) const {
auto upAxis = cs::CoordinateSystemAxis::create(
util::PropertyMap().set(IdentifiedObject::NAME_KEY,
cs::AxisName::Ellipsoidal_height),
cs::AxisAbbreviation::h, cs::AxisDirection::UP,
common::UnitOfMeasure::METRE);
return promoteTo3D(newName, dbContext, upAxis);
}
// ---------------------------------------------------------------------------
//! @cond Doxygen_Suppress
CRSNNPtr CRS::promoteTo3D(const std::string &newName,
const io::DatabaseContextPtr &dbContext,
const cs::CoordinateSystemAxisNNPtr
&verticalAxisIfNotAlreadyPresent) const {
const auto geogCRS = dynamic_cast<const GeographicCRS *>(this);
if (geogCRS) {
const auto &axisList = geogCRS->coordinateSystem()->axisList();
if (axisList.size() == 2) {
const auto &l_identifiers = identifiers();
// First check if there is a Geographic 3D CRS in the database
// of the same name.
// This is the common practice in the EPSG dataset.
if (dbContext && l_identifiers.size() == 1) {
auto authFactory = io::AuthorityFactory::create(
NN_NO_CHECK(dbContext), *(l_identifiers[0]->codeSpace()));
auto res = authFactory->createObjectsFromName(
nameStr(),
{io::AuthorityFactory::ObjectType::GEOGRAPHIC_3D_CRS},
false);
if (!res.empty()) {
const auto &firstRes = res.front();
const auto firstResGeog =
dynamic_cast<GeographicCRS *>(firstRes.get());
const auto &firstResAxisList =
firstResGeog->coordinateSystem()->axisList();
if (firstResAxisList[2]->_isEquivalentTo(
verticalAxisIfNotAlreadyPresent.get(),
util::IComparable::Criterion::EQUIVALENT) &&
geogCRS->is2DPartOf3D(NN_NO_CHECK(firstResGeog))) {
return NN_NO_CHECK(
util::nn_dynamic_pointer_cast<CRS>(firstRes));
}
}
}
auto cs = cs::EllipsoidalCS::create(
util::PropertyMap(), axisList[0], axisList[1],
verticalAxisIfNotAlreadyPresent);
return util::nn_static_pointer_cast<CRS>(GeographicCRS::create(
util::PropertyMap().set(common::IdentifiedObject::NAME_KEY,
!newName.empty() ? newName : nameStr()),
geogCRS->datum(), geogCRS->datumEnsemble(), cs));
}
}
const auto projCRS = dynamic_cast<const ProjectedCRS *>(this);
if (projCRS) {
const auto &axisList = projCRS->coordinateSystem()->axisList();
if (axisList.size() == 2) {
auto base3DCRS =
projCRS->baseCRS()->promoteTo3D(std::string(), dbContext);
auto cs = cs::CartesianCS::create(util::PropertyMap(), axisList[0],
axisList[1],
verticalAxisIfNotAlreadyPresent);
return util::nn_static_pointer_cast<CRS>(ProjectedCRS::create(
util::PropertyMap().set(common::IdentifiedObject::NAME_KEY,
!newName.empty() ? newName : nameStr()),
NN_NO_CHECK(
util::nn_dynamic_pointer_cast<GeodeticCRS>(base3DCRS)),
projCRS->derivingConversion(), cs));
}
}
const auto boundCRS = dynamic_cast<const BoundCRS *>(this);
if (boundCRS) {
auto base3DCRS = boundCRS->baseCRS()->promoteTo3D(
newName, dbContext, verticalAxisIfNotAlreadyPresent);
auto transf = boundCRS->transformation();
try {
transf->getTOWGS84Parameters();
return BoundCRS::create(
base3DCRS,
boundCRS->hubCRS()->promoteTo3D(std::string(), dbContext),
transf->promoteTo3D(std::string(), dbContext));
} catch (const io::FormattingException &) {
return BoundCRS::create(base3DCRS, boundCRS->hubCRS(), transf);
}
}
return NN_NO_CHECK(
std::static_pointer_cast<CRS>(shared_from_this().as_nullable()));
}
//! @endcond
// ---------------------------------------------------------------------------
/** \brief Return a variant of this CRS "demoted" to a 2D one, if not already
* the case.
*
*
* @param newName Name of the new CRS. If empty, nameStr() will be used.
* @param dbContext Database context to look for potentially already registered
* 2D CRS. May be nullptr.