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// ----------------------------------------------------------------------------
// - Open3D: www.open3d.org -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.open3d.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
#include "open3d/core/SizeVector.h"
#include "pybind/core/core.h"
#include "pybind/docstring.h"
#include "pybind/open3d_pybind.h"
namespace open3d {
namespace core {
void pybind_core_size_vector_declarations(py::module& m) {
// bind_vector takes care of most common methods for Python list.
auto sv = py::bind_vector<SizeVector>(
m, "SizeVector",
"A vector of integers for specifying shape, strides, etc.");
auto dsv = py::bind_vector<DynamicSizeVector>(
m, "DynamicSizeVector",
"A vector of integers for specifying shape, strides, etc. Some "
"elements can be None.");
}
void pybind_core_size_vector_definitions(py::module& m) {
// In Python, We want (3), (3,), [3] and [3,] to represent the same thing.
// The following are all equivalent to core::SizeVector({3}):
// - o3d.core.SizeVector(3) # int
// - o3d.core.SizeVector((3)) # int, not tuple
// - o3d.core.SizeVector((3,)) # tuple
// - o3d.core.SizeVector([3]) # list
// - o3d.core.SizeVector([3,]) # list
//
// Difference between C++ and Python:
// - o3d.core.SizeVector(3) creates a 1-D SizeVector: {3}.
// - core::SizeVector(3) creates a 3-D SizeVector: {0, 0, 0}.
//
// The API difference is due to the NumPy convention which allows integer to
// represent a 1-element tuple, and the C++ constructor for vectors.
auto sv = static_cast<py::class_<SizeVector>>(m.attr("SizeVector"));
sv.def(py::init([](int64_t i) { return SizeVector({i}); }));
py::implicitly_convertible<py::int_, SizeVector>();
// Allows tuple and list implicit conversions to SizeVector.
py::implicitly_convertible<py::tuple, SizeVector>();
py::implicitly_convertible<py::list, SizeVector>();
auto dsv = static_cast<py::class_<DynamicSizeVector>>(
m.attr("DynamicSizeVector"));
dsv.def("__repr__",
[](const DynamicSizeVector& dsv) { return dsv.ToString(); });
}
} // namespace core
} // namespace open3d
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