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// Copyright (c) 2018, 2025, Oracle and/or its affiliates.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License, version 2.0,
// as published by the Free Software Foundation.
//
// This program is designed to work with certain software (including
// but not limited to OpenSSL) that is licensed under separate terms,
// as designated in a particular file or component or in included license
// documentation. The authors of MySQL hereby grant you an additional
// permission to link the program and your derivative works with the
// separately licensed software that they have either included with
// the program or referenced in the documentation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License, version 2.0, for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
/// @file
///
/// This file implements the transform functor and function.
// boost/geometry/srs/projections/impl/dms_parser.hpp uses "SEC" as a template
// parameter name, but SEC is a macro in sys/time.h on Solaris.
#include "my_config.h" // HAVE_SYS_TIME_H
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#undef SEC
#endif
#include "sql/gis/transform.h"
#include "sql/gis/transform_functor.h"
#include <boost/geometry.hpp>
#include <memory> // std::unique_ptr
#include "my_inttypes.h" // MYF
#include "my_sys.h" // my_error
#include "mysqld_error.h" // Error codes
#include "sql/dd/string_type.h" // dd::String_type
#include "sql/dd/types/spatial_reference_system.h" // dd::Spatial_reference_system
#include "sql/gis/geometries.h"
#include "sql/gis/geometries_traits.h"
#include "sql/sql_exception_handler.h" // handle_gis_exception
namespace bg = boost::geometry;
namespace gis {
template <typename CartesianGeometry, typename GeographicGeometry,
typename InputGeometry>
auto transform_helper(
const InputGeometry &g, const Coordinate_system &m_output_cs,
const boost::geometry::srs::transformation<> &m_transformation) {
switch (m_output_cs) {
case Coordinate_system::kCartesian: {
// Workaround for limitation in Developer Studio 12.5 on Solaris that
// doesn't allow returning std::unique_ptr<subtype of Geometry>.
CartesianGeometry *pt_result = new CartesianGeometry();
std::unique_ptr<Geometry> result(pt_result);
m_transformation.forward(g, *pt_result);
return result;
}
case Coordinate_system::kGeographic: {
// Workaround for limitation in Developer Studio 12.5 on Solaris that
// doesn't allow returning std::unique_ptr<subtype of Geometry>.
GeographicGeometry *pt_result = new GeographicGeometry();
std::unique_ptr<Geometry> result(pt_result);
m_transformation.forward(g, *pt_result);
return result;
}
}
/* purceov: begin deadcode */
assert(false);
throw std::exception();
/* purceov: end */
}
template <typename InputGeometryCollection>
auto transform_gc_helper(const InputGeometryCollection &g,
const Coordinate_system &m_output_cs,
const Transform &transform) {
switch (m_output_cs) {
case Coordinate_system::kCartesian: {
// Workaround for limitation in Developer Studio 12.5 on Solaris that
// doesn't allow returning std::unique_ptr<subtype of Geometry>.
Cartesian_geometrycollection *gc_result =
new Cartesian_geometrycollection();
std::unique_ptr<Geometry> result(gc_result);
for (std::size_t i = 0; i < g.size(); i++) {
std::unique_ptr<Geometry> geom_res(transform(g[i]));
gc_result->push_back(*geom_res);
}
return result;
}
case Coordinate_system::kGeographic: {
// Workaround for limitation in Developer Studio 12.5 on Solaris that
// doesn't allow returning std::unique_ptr<subtype of Geometry>.
Geographic_geometrycollection *gc_result =
new Geographic_geometrycollection();
std::unique_ptr<Geometry> result(gc_result);
for (std::size_t i = 0; i < g.size(); i++) {
std::unique_ptr<Geometry> geom_res(transform(g[i]));
gc_result->push_back(*geom_res);
}
return result;
}
}
/* purceov: begin deadcode */
assert(false);
throw std::exception();
/* purceov: end */
}
Transform::Transform(const std::string &old_srs_params,
const std::string &new_srs_params,
Coordinate_system output_cs)
: m_transformation(bg::srs::proj4(old_srs_params),
bg::srs::proj4(new_srs_params)),
m_output_cs(output_cs) {}
std::unique_ptr<Geometry> Transform::operator()(const Geometry &g) const {
return apply(*this, g);
}
std::unique_ptr<Geometry> Transform::eval(const Geometry &g) const {
/* purecov: begin deadcode */
assert(false);
throw not_implemented_exception::for_non_projected(g);
/* purecov: end */
}
std::unique_ptr<Geometry> Transform::eval(const Cartesian_point &g) const {
return transform_helper<Cartesian_point, Geographic_point>(g, m_output_cs,
m_transformation);
}
std::unique_ptr<Geometry> Transform::eval(const Geographic_point &g) const {
return transform_helper<Cartesian_point, Geographic_point>(g, m_output_cs,
m_transformation);
}
std::unique_ptr<Geometry> Transform::eval(const Cartesian_linestring &g) const {
return transform_helper<Cartesian_linestring, Geographic_linestring>(
g, m_output_cs, m_transformation);
}
std::unique_ptr<Geometry> Transform::eval(
const Geographic_linestring &g) const {
return transform_helper<Cartesian_linestring, Geographic_linestring>(
g, m_output_cs, m_transformation);
}
std::unique_ptr<Geometry> Transform::eval(const Cartesian_polygon &g) const {
return transform_helper<Cartesian_polygon, Geographic_polygon>(
g, m_output_cs, m_transformation);
}
std::unique_ptr<Geometry> Transform::eval(const Geographic_polygon &g) const {
return transform_helper<Cartesian_polygon, Geographic_polygon>(
g, m_output_cs, m_transformation);
}
std::unique_ptr<Geometry> Transform::eval(
const Cartesian_geometrycollection &g) const {
return transform_gc_helper(g, m_output_cs, *this);
}
std::unique_ptr<Geometry> Transform::eval(
const Geographic_geometrycollection &g) const {
return transform_gc_helper(g, m_output_cs, *this);
}
std::unique_ptr<Geometry> Transform::eval(const Cartesian_multipoint &g) const {
return transform_helper<Cartesian_multipoint, Geographic_multipoint>(
g, m_output_cs, m_transformation);
}
std::unique_ptr<Geometry> Transform::eval(
const Geographic_multipoint &g) const {
return transform_helper<Cartesian_multipoint, Geographic_multipoint>(
g, m_output_cs, m_transformation);
}
std::unique_ptr<Geometry> Transform::eval(
const Cartesian_multilinestring &g) const {
return transform_helper<Cartesian_multilinestring,
Geographic_multilinestring>(g, m_output_cs,
m_transformation);
}
std::unique_ptr<Geometry> Transform::eval(
const Geographic_multilinestring &g) const {
return transform_helper<Cartesian_multilinestring,
Geographic_multilinestring>(g, m_output_cs,
m_transformation);
}
std::unique_ptr<Geometry> Transform::eval(
const Cartesian_multipolygon &g) const {
return transform_helper<Cartesian_multipolygon, Geographic_multipolygon>(
g, m_output_cs, m_transformation);
}
std::unique_ptr<Geometry> Transform::eval(
const Geographic_multipolygon &g) const {
return transform_helper<Cartesian_multipolygon, Geographic_multipolygon>(
g, m_output_cs, m_transformation);
}
bool transform(const dd::Spatial_reference_system *source_srs,
const Geometry &in,
const dd::Spatial_reference_system *target_srs,
const char *func_name, std::unique_ptr<Geometry> *out) noexcept {
try {
if (source_srs->missing_towgs84()) {
my_error(ER_TRANSFORM_SOURCE_SRS_MISSING_TOWGS84, MYF(0),
source_srs->id());
return true;
}
if (target_srs->missing_towgs84()) {
my_error(ER_TRANSFORM_TARGET_SRS_MISSING_TOWGS84, MYF(0),
target_srs->id());
return true;
}
dd::String_type source_proj = source_srs->proj4_parameters();
dd::String_type target_proj = target_srs->proj4_parameters();
if (source_proj.size() == 0) {
assert(source_srs->is_projected());
my_error(ER_TRANSFORM_SOURCE_SRS_NOT_SUPPORTED, MYF(0), source_srs->id());
return true;
}
if (target_proj.size() == 0) {
assert(target_srs->is_projected());
my_error(ER_TRANSFORM_TARGET_SRS_NOT_SUPPORTED, MYF(0), target_srs->id());
return true;
}
Transform transform(source_proj.c_str(), target_proj.c_str(),
target_srs->cs_type());
*out = transform(in);
return false;
} catch (...) {
/* purecov: begin inspected */
handle_gis_exception(func_name);
return true;
/* purecov: end */
}
}
} // namespace gis
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