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%global _empty_manifest_terminate_build 0
Name: python-mapbox-earcut
Version: 1.0.1
Release: 1
Summary: Python bindings for the mapbox earcut C++ polygon triangulation library.
License: ISC
URL: https://github.com/skogler/mapbox_earcut_python
Source0: https://mirrors.nju.edu.cn/pypi/web/packages/97/f9/38f72877be0a5bf35c04a75c8ceb261589f2807eeaffaa22055079f53839/mapbox_earcut-1.0.1.tar.gz
Requires: python3-numpy
Requires: python3-pytest
%description
# mapbox_earcut
Python bindings for the C++ implementation of the Mapbox Earcut library, which
provides very fast and quite robust triangulation of 2D polygons.
Original code: [earcut.hpp](https://github.com/mapbox/earcut.hpp)
Original description:
> The library implements a modified ear slicing algorithm, optimized by
> [z-order curve](http://en.wikipedia.org/wiki/Z-order_curve) hashing and
> extended to handle holes, twisted polygons, degeneracies and self-intersections
> in a way that doesn't _guarantee_ correctness of triangulation, but attempts to
> always produce acceptable results for practical data like geographical shapes.
Provided functions (depending on dtype of vertex data):
```python
triangulate_float32
triangulate_float64
triangulate_int32
triangulate_int64
```
Example:
```python
import mapbox_earcut as earcut
import numpy as np
# A Nx2 array of vertices. Must be 2D.
verts = np.array([[0, 0], [1, 0], [1, 1]]).reshape(-1, 2)
# An array of end-indices for each ring.
# The first ring is the outer contour of the polygon.
# Subsequent ones are holes.
# This implies that the last index must always be equal to the size of verts!
rings = np.array([3])
result = earcut.triangulate_float32(verts, rings)
# Result is an np.ndarray with dtype np.uint32 and shape (3,)
# containing indices into the verts array.
print(verts[result])
# [[1 0]
# [1 1]
# [0 0]]
```
%package -n python3-mapbox-earcut
Summary: Python bindings for the mapbox earcut C++ polygon triangulation library.
Provides: python-mapbox-earcut
BuildRequires: python3-devel
BuildRequires: python3-setuptools
BuildRequires: python3-pip
BuildRequires: python3-cffi
BuildRequires: gcc
BuildRequires: gdb
%description -n python3-mapbox-earcut
# mapbox_earcut
Python bindings for the C++ implementation of the Mapbox Earcut library, which
provides very fast and quite robust triangulation of 2D polygons.
Original code: [earcut.hpp](https://github.com/mapbox/earcut.hpp)
Original description:
> The library implements a modified ear slicing algorithm, optimized by
> [z-order curve](http://en.wikipedia.org/wiki/Z-order_curve) hashing and
> extended to handle holes, twisted polygons, degeneracies and self-intersections
> in a way that doesn't _guarantee_ correctness of triangulation, but attempts to
> always produce acceptable results for practical data like geographical shapes.
Provided functions (depending on dtype of vertex data):
```python
triangulate_float32
triangulate_float64
triangulate_int32
triangulate_int64
```
Example:
```python
import mapbox_earcut as earcut
import numpy as np
# A Nx2 array of vertices. Must be 2D.
verts = np.array([[0, 0], [1, 0], [1, 1]]).reshape(-1, 2)
# An array of end-indices for each ring.
# The first ring is the outer contour of the polygon.
# Subsequent ones are holes.
# This implies that the last index must always be equal to the size of verts!
rings = np.array([3])
result = earcut.triangulate_float32(verts, rings)
# Result is an np.ndarray with dtype np.uint32 and shape (3,)
# containing indices into the verts array.
print(verts[result])
# [[1 0]
# [1 1]
# [0 0]]
```
%package help
Summary: Development documents and examples for mapbox-earcut
Provides: python3-mapbox-earcut-doc
%description help
# mapbox_earcut
Python bindings for the C++ implementation of the Mapbox Earcut library, which
provides very fast and quite robust triangulation of 2D polygons.
Original code: [earcut.hpp](https://github.com/mapbox/earcut.hpp)
Original description:
> The library implements a modified ear slicing algorithm, optimized by
> [z-order curve](http://en.wikipedia.org/wiki/Z-order_curve) hashing and
> extended to handle holes, twisted polygons, degeneracies and self-intersections
> in a way that doesn't _guarantee_ correctness of triangulation, but attempts to
> always produce acceptable results for practical data like geographical shapes.
Provided functions (depending on dtype of vertex data):
```python
triangulate_float32
triangulate_float64
triangulate_int32
triangulate_int64
```
Example:
```python
import mapbox_earcut as earcut
import numpy as np
# A Nx2 array of vertices. Must be 2D.
verts = np.array([[0, 0], [1, 0], [1, 1]]).reshape(-1, 2)
# An array of end-indices for each ring.
# The first ring is the outer contour of the polygon.
# Subsequent ones are holes.
# This implies that the last index must always be equal to the size of verts!
rings = np.array([3])
result = earcut.triangulate_float32(verts, rings)
# Result is an np.ndarray with dtype np.uint32 and shape (3,)
# containing indices into the verts array.
print(verts[result])
# [[1 0]
# [1 1]
# [0 0]]
```
%prep
%autosetup -n mapbox-earcut-1.0.1
%build
%py3_build
%install
%py3_install
install -d -m755 %{buildroot}/%{_pkgdocdir}
if [ -d doc ]; then cp -arf doc %{buildroot}/%{_pkgdocdir}; fi
if [ -d docs ]; then cp -arf docs %{buildroot}/%{_pkgdocdir}; fi
if [ -d example ]; then cp -arf example %{buildroot}/%{_pkgdocdir}; fi
if [ -d examples ]; then cp -arf examples %{buildroot}/%{_pkgdocdir}; fi
pushd %{buildroot}
if [ -d usr/lib ]; then
find usr/lib -type f -printf "/%h/%f\n" >> filelist.lst
fi
if [ -d usr/lib64 ]; then
find usr/lib64 -type f -printf "/%h/%f\n" >> filelist.lst
fi
if [ -d usr/bin ]; then
find usr/bin -type f -printf "/%h/%f\n" >> filelist.lst
fi
if [ -d usr/sbin ]; then
find usr/sbin -type f -printf "/%h/%f\n" >> filelist.lst
fi
touch doclist.lst
if [ -d usr/share/man ]; then
find usr/share/man -type f -printf "/%h/%f.gz\n" >> doclist.lst
fi
popd
mv %{buildroot}/filelist.lst .
mv %{buildroot}/doclist.lst .
%files -n python3-mapbox-earcut -f filelist.lst
%dir %{python3_sitearch}/*
%files help -f doclist.lst
%{_docdir}/*
%changelog
* Sun Apr 23 2023 Python_Bot <Python_Bot@openeuler.org> - 1.0.1-1
- Package Spec generated
|
