def from_crs(crs_from, crs_to, skip_equivalent=False):
"""Make a Transformer from a :obj:`~pyproj.crs.CRS` or input used to create one.
Parameters
----------
crs_from: ~pyproj.crs.CRS or input used to create one
Projection of input data.
crs_to: ~pyproj.crs.CRS or input used to create one
Projection of output data.
skip_equivalent: bool, optional
If true, will skip the transformation operation if input and output
projections are equivalent. Default is false.
Returns
-------
:obj:`~Transformer`
"""
transformer = Transformer()
transformer._transformer = _Transformer.from_crs(
CRS.from_user_input(crs_from),
CRS.from_user_input(crs_to),
skip_equivalent=skip_equivalent,
)
return transformer
def test_epsg():
with pytest.warns(FutureWarning):
assert CRS({"init": "EPSG:4326"}).to_epsg(20) == 4326
assert CRS({"init": "EPSG:4326"}).to_epsg() is None
assert CRS.from_user_input(4326).to_epsg() == 4326
assert CRS.from_epsg(4326).to_epsg() == 4326
assert CRS.from_user_input("epsg:4326").to_epsg() == 4326
def transform_polygon(polygon, src_crs, dst_crs):
src_crs = CRS.from_user_input(src_crs)
dst_crs = CRS.from_user_input(dst_crs)
if not dst_crs.equals(src_crs):
transformer = Transformer.from_crs(src_crs, dst_crs, always_xy=True)
polygon = transform(transformer.transform, polygon)
return polygon
def from_crs(crs_from, crs_to, skip_equivalent=False, always_xy=False):
"""Make a Transformer from a :obj:`~pyproj.crs.CRS` or input used to create one.
Parameters
----------
crs_from: ~pyproj.crs.CRS or input used to create one
Projection of input data.
crs_to: ~pyproj.crs.CRS or input used to create one
Projection of output data.
skip_equivalent: bool, optional
If true, will skip the transformation operation if input and output
projections are equivalent. Default is false.
always_xy: bool, optional
If true, the transform method will accept as input and return as output
coordinates using the traditional GIS order, that is longitude, latitude
for geographic CRS and easting, northing for most projected CRS.
Default is false.
Returns
-------
:obj:`~Transformer`
"""
transformer = Transformer(
_Transformer.from_crs(
CRS.from_user_input(crs_from),
CRS.from_user_input(crs_to),
skip_equivalent=skip_equivalent,
always_xy=always_xy,
))
return transformer
def crs(self):
if self._crs is False:
return None
elif self._crs is not None:
return self._crs
grid_mapping = self._obj.attrs.get("grid_mapping")
if grid_mapping:
warnings.warn(
"'grid_mapping' attribute found, but no grid_mapping variable"
" was provided. Use 'data_arr.geo.set_cf_grid_mapping' to "
"provide one. Will search other metadata for CRS information.")
# TODO: Check for lon/lat 2D coordinate arrays
coords_crs = self._obj.coords.get("crs")
attrs_crs = self._obj.attrs.get("crs")
area = self._obj.attrs.get("area")
if coords_crs is not None:
crs = CRS.from_user_input(coords_crs)
elif attrs_crs is not None:
crs = CRS.from_user_input(attrs_crs)
elif has_pyresample and isinstance(area, AreaDefinition):
crs = area.crs
elif has_pyresample and isinstance(area, SwathDefinition):
# TODO: Convert and gather information from definitions
self._is_gridded = False
crs = False
else:
crs = False
self._crs = crs
return self._crs if self._crs is not False else None
def __init__(
self,
crs_from: Any,
crs_to: Any,
always_xy: bool = False,
area_of_interest: Optional[AreaOfInterest] = None,
authority: Optional[str] = None,
accuracy: Optional[float] = None,
allow_ballpark: bool = True,
) -> None:
"""Get all possible transformations from a :obj:`pyproj.crs.CRS`
or input used to create one.
.. versionadded:: 3.4.0 authority, accuracy, allow_ballpark
Parameters
----------
crs_from: pyproj.crs.CRS or input used to create one
Projection of input data.
crs_to: pyproj.crs.CRS or input used to create one
Projection of output data.
always_xy: bool, default=False
If true, the transform method will accept as input and return as output
coordinates using the traditional GIS order, that is longitude, latitude
for geographic CRS and easting, northing for most projected CRS.
area_of_interest: :class:`pyproj.transformer.AreaOfInterest`, optional
The area of interest to help order the transformations based on the
best operation for the area.
authority: str, optional
When not specified, coordinate operations from any authority will be
searched, with the restrictions set in the
authority_to_authority_preference database table related to the
authority of the source/target CRS themselves. If authority is set
to “any”, then coordinate operations from any authority will be
searched. If authority is a non-empty string different from "any",
then coordinate operations will be searched only in that authority
namespace (e.g. EPSG).
accuracy: float, optional
The minimum desired accuracy (in metres) of the candidate
coordinate operations.
allow_ballpark: bool, default=True
Set to False to disallow the use of Ballpark transformation
in the candidate coordinate operations. Default is to allow.
"""
super().__init__(
CRS.from_user_input(crs_from)._crs,
CRS.from_user_input(crs_to)._crs,
always_xy=always_xy,
area_of_interest=area_of_interest,
authority=authority,
accuracy=-1 if accuracy is None else accuracy,
allow_ballpark=allow_ballpark,
)
for iii, transformer in enumerate(self._transformers):
# pylint: disable=unsupported-assignment-operation
self._transformers[iii] = Transformer(
TransformerUnsafe(transformer))
def from_crs(
crs_from: Any,
crs_to: Any,
always_xy: bool = False,
area_of_interest: Optional[AreaOfInterest] = None,
authority: Optional[str] = None,
accuracy: Optional[float] = None,
allow_ballpark: Optional[bool] = None,
) -> "Transformer":
"""Make a Transformer from a :obj:`pyproj.crs.CRS` or input used to create one.
.. versionadded:: 2.2.0 always_xy
.. versionadded:: 2.3.0 area_of_interest
.. versionadded:: 3.1.0 authority, accuracy, allow_ballpark
Parameters
----------
crs_from: pyproj.crs.CRS or input used to create one
Projection of input data.
crs_to: pyproj.crs.CRS or input used to create one
Projection of output data.
always_xy: bool, default=False
If true, the transform method will accept as input and return as output
coordinates using the traditional GIS order, that is longitude, latitude
for geographic CRS and easting, northing for most projected CRS.
area_of_interest: :class:`pyproj.transformer.AreaOfInterest`, optional
The area of interest to help select the transformation.
authority: str, optional
When not specified, coordinate operations from any authority will be
searched, with the restrictions set in the
authority_to_authority_preference database table related to the
authority of the source/target CRS themselves. If authority is set
to “any”, then coordinate operations from any authority will be
searched. If authority is a non-empty string different from "any",
then coordinate operations will be searched only in that authority
namespace (e.g. EPSG).
accuracy: float, optional
The minimum desired accuracy (in metres) of the candidate
coordinate operations.
allow_ballpark: bool, optional
Set to False to disallow the use of Ballpark transformation
in the candidate coordinate operations. Default is to allow.
Returns
-------
Transformer
"""
return Transformer(
TransformerFromCRS(
cstrencode(CRS.from_user_input(crs_from).srs),
cstrencode(CRS.from_user_input(crs_to).srs),
always_xy=always_xy,
area_of_interest=area_of_interest,
authority=authority,
accuracy=accuracy if accuracy is None else str(accuracy),
allow_ballpark=allow_ballpark,
))
def _transform_polygon(polygon, src_crs, dst_crs):
if isinstance(src_crs, str):
src_crs = CRS.from_user_input(src_crs)
if isinstance(dst_crs, str):
dst_crs = CRS.from_user_input(dst_crs)
if dst_crs.srs != src_crs.srs:
transformer = Transformer.from_crs(
src_crs, dst_crs, always_xy=True)
polygon = transform(transformer.transform, polygon)
return polygon
def test_is_projected():
assert CRS({"init": "EPSG:3857"}).is_projected is True
lcc_crs = CRS.from_string(
"+lon_0=-95 +ellps=GRS80 +y_0=0 +no_defs=True +proj=lcc +x_0=0 +units=m +lat_2=77 +lat_1=49 +lat_0=0"
)
assert CRS.from_user_input(lcc_crs).is_projected is True
wgs84_crs = CRS.from_string("+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs")
assert CRS.from_user_input(wgs84_crs).is_projected is False
def test_is_projected():
assert CRS({"init": "EPSG:3857"}).is_projected is True
lcc_crs = CRS.from_string(
"+lon_0=-95 +ellps=GRS80 +y_0=0 +no_defs=True +proj=lcc +x_0=0 +units=m +lat_2=77 +lat_1=49 +lat_0=0"
)
assert CRS.from_user_input(lcc_crs).is_projected is True
wgs84_crs = CRS.from_string("+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs")
assert CRS.from_user_input(wgs84_crs).is_projected is False
def __init__(
self,
crs_from,
crs_to,
skip_equivalent=False,
always_xy=False,
area_of_interest=None,
):
"""Get all possible transformations from a :obj:`~pyproj.crs.CRS`
or input used to create one.
Parameters
----------
crs_from: ~pyproj.crs.CRS or input used to create one
Projection of input data.
crs_to: ~pyproj.crs.CRS or input used to create one
Projection of output data.
skip_equivalent: bool, optional
If true, will skip the transformation operation if input and output
projections are equivalent. Default is false.
always_xy: bool, optional
If true, the transform method will accept as input and return as output
coordinates using the traditional GIS order, that is longitude, latitude
for geographic CRS and easting, northing for most projected CRS.
Default is false.
area_of_interest: :class:`~pyproj.transformer.AreaOfInterest`, optional
The area of interest to help order the transformations based on the
best operation for the area.
"""
self._transformers = []
self._unavailable_operations = []
self._best_available = True
for iii, operation in enumerate(
transformer_list_from_crs(
CRS.from_user_input(crs_from),
CRS.from_user_input(crs_to),
skip_equivalent=skip_equivalent,
always_xy=always_xy,
area_of_interest=area_of_interest,
)
):
if isinstance(operation, _Transformer):
self._transformers.append(Transformer(operation))
else:
self._unavailable_operations.append(operation)
if iii == 0:
self._best_available = False
warnings.warn(
"Best transformation is not available due to missing "
"{!r}".format(operation.grids[0])
)
def from_crs(
crs_from: Any,
crs_to: Any,
skip_equivalent: bool = False,
always_xy: bool = False,
area_of_interest: Optional[AreaOfInterest] = None,
network: Optional[bool] = None,
) -> "Transformer":
"""Make a Transformer from a :obj:`pyproj.crs.CRS` or input used to create one.
.. versionadded:: 2.1.2 skip_equivalent
.. versionadded:: 2.2.0 always_xy
.. versionadded:: 2.3.0 area_of_interest
.. versionadded:: 3.0.0 network
Parameters
----------
crs_from: pyproj.crs.CRS or input used to create one
Projection of input data.
crs_to: pyproj.crs.CRS or input used to create one
Projection of output data.
skip_equivalent: bool, optional
If true, will skip the transformation operation if input and output
projections are equivalent. Default is false.
always_xy: bool, optional
If true, the transform method will accept as input and return as output
coordinates using the traditional GIS order, that is longitude, latitude
for geographic CRS and easting, northing for most projected CRS.
Default is false.
area_of_interest: :class:`pyproj.transformer.AreaOfInterest`, optional
The area of interest to help select the transformation.
network: bool, optional
Default is None, which uses the system defaults for networking.
If True, it will force the use of network for grids regardless of
any other network setting. If False, it will force disable use of
network for grids regardless of any other network setting.
Returns
-------
Transformer
"""
return Transformer(
_Transformer.from_crs(
CRS.from_user_input(crs_from),
CRS.from_user_input(crs_to),
skip_equivalent=skip_equivalent,
always_xy=always_xy,
area_of_interest=area_of_interest,
network=network,
))
def __init__(
self,
crs_from: Any,
crs_to: Any,
skip_equivalent: bool = False,
always_xy: bool = False,
area_of_interest: Optional[AreaOfInterest] = None,
) -> None:
"""Get all possible transformations from a :obj:`pyproj.crs.CRS`
or input used to create one.
Parameters
----------
crs_from: pyproj.crs.CRS or input used to create one
Projection of input data.
crs_to: pyproj.crs.CRS or input used to create one
Projection of output data.
skip_equivalent: bool, optional
If true, will skip the transformation operation if input and output
projections are equivalent. Default is false.
always_xy: bool, optional
If true, the transform method will accept as input and return as output
coordinates using the traditional GIS order, that is longitude, latitude
for geographic CRS and easting, northing for most projected CRS.
Default is false.
area_of_interest: :class:`pyproj.transformer.AreaOfInterest`, optional
The area of interest to help order the transformations based on the
best operation for the area.
Example:
>>> from pyproj.transformer import TransformerGroup
>>> trans_group = TransformerGroup(4326, 2964)
>>> trans_group
<TransformerGroup: best_available=True>
- transformers: 8
- unavailable_operations: 1
"""
super().__init__(
CRS.from_user_input(crs_from),
CRS.from_user_input(crs_to),
skip_equivalent=skip_equivalent,
always_xy=always_xy,
area_of_interest=area_of_interest,
)
for iii, transformer in enumerate(self._transformers):
self._transformers[iii] = Transformer(transformer)
def _transform_multipolygon(multipolygon, src_crs, dst_crs):
if isinstance(src_crs, str):
src_crs = CRS.from_user_input(src_crs)
if isinstance(dst_crs, str):
dst_crs = CRS.from_user_input(dst_crs)
if dst_crs.srs != src_crs.srs:
transformer = Transformer.from_crs(
src_crs, dst_crs, always_xy=True)
polygon_collection = list()
for polygon in multipolygon:
polygon_collection.append(
transform(transformer.transform, polygon))
outer = polygon_collection.pop(0)
multipolygon = MultiPolygon([outer, *polygon_collection])
return multipolygon
def __init__(
self,
crs_from: Any,
crs_to: Any,
skip_equivalent: bool = False,
always_xy: bool = False,
area_of_interest: Optional[AreaOfInterest] = None,
) -> None:
"""Get all possible transformations from a :obj:`pyproj.crs.CRS`
or input used to create one.
.. deprecated:: 3.1 skip_equivalent
Parameters
----------
crs_from: pyproj.crs.CRS or input used to create one
Projection of input data.
crs_to: pyproj.crs.CRS or input used to create one
Projection of output data.
skip_equivalent: bool, default=False
DEPRECATED: If true, will skip the transformation operation
if input and output projections are equivalent.
always_xy: bool, default=False
If true, the transform method will accept as input and return as output
coordinates using the traditional GIS order, that is longitude, latitude
for geographic CRS and easting, northing for most projected CRS.
area_of_interest: :class:`pyproj.transformer.AreaOfInterest`, optional
The area of interest to help order the transformations based on the
best operation for the area.
"""
if skip_equivalent:
warnings.warn(
"skip_equivalent is deprecated.",
DeprecationWarning,
stacklevel=2,
)
super().__init__(
CRS.from_user_input(crs_from)._crs,
CRS.from_user_input(crs_to)._crs,
always_xy=always_xy,
area_of_interest=area_of_interest,
)
for iii, transformer in enumerate(self._transformers):
# pylint: disable=unsupported-assignment-operation
self._transformers[iii] = Transformer(
TransformerUnsafe(transformer))
def __init__(self, nodes: Dict[Hashable, List[List]], crs=None):
"""Setter for the nodes attribute.
Argument nodes must be of the form:
{id: [(x0, y0), z0]}
or
{id: [(x0, y0), [z0, ..., zn]}
Grd format is assumed to be exclusively a 2D format that can hold
triangles or quads.
"""
for coords, _ in nodes.values():
if len(coords) != 2:
raise ValueError(
'Coordinate vertices for a gr3 type must be 2D, but got '
f'coordinates {coords}.')
self._id = list(nodes.keys())
self._coords = np.array(
[coords for coords, _ in nodes.values()])
self._crs = CRS.from_user_input(crs) if crs is not None else crs
self._values = np.array(
[value for _, value in nodes.values()])
def __init__(
self,
nodes: DataFrame,
elements: DataFrame = None,
description: str = None,
crs: CRS = None,
):
if isinstance(nodes, Mapping):
nodes = DataFrame.from_dict(nodes, orient='index')
if isinstance(elements, Mapping):
elements = DataFrame.from_dict(elements, orient='index')
if crs is not None and not isinstance(crs, CRS):
crs = CRS.from_user_input(crs)
records_with_extra_values = np.any(~pandas.isna(nodes.iloc[:, 3:]),
axis=1)
if np.any(records_with_extra_values):
raise ValueError(
f'Coordinate vertices for a gr3 type must be 2D, but got coordinates {nodes[records_with_extra_values]}.'
)
nodes = nodes.loc[:, nodes.columns[:2].to_list() + nodes.columns[2:][
np.any(~pandas.isna(nodes.iloc[:, 2:]), axis=0)].to_list(), ]
self._coords = nodes.iloc[:, :2]
self._crs = crs
self._values = nodes.iloc[:, 2:]
self.nodes = nodes
self.elements = Elements(self.nodes, elements, crs)
self.description = "" if description is None else str(description)
self.hull = Hull(self)
def read(resource: Union[str, os.PathLike], boundaries: bool = True, crs=True):
"""Converts a file-like object representing a grd-formatted unstructured
mesh into a python dictionary:
Args:
resource: Path to file on disk or file-like object such as
:class:`io.StringIO`
"""
resource = pathlib.Path(resource)
with open(resource, 'r') as stream:
grd = buffer_to_dict(stream)
if boundaries is False:
grd.pop('boundaries', None)
if crs is True:
crs = None
if crs is None:
for try_crs in grd['description'].split():
try:
crs = CRS.from_user_input(try_crs)
break
except CRSError:
pass
if crs is None:
warnings.warn(f'File {str(resource)} does not contain CRS '
'information and no CRS was given.')
if crs is not False:
grd.update({'crs': crs})
return grd
def crs_to_wkt(crs_input):
"""
This is to deal with change in rasterio.crs.CRS
as well as to assist in the transition between GDAL 2/3.
Parameters
----------
crs_input: Any
Input to create a CRS.
Returns
-------
str: WKT string.
"""
try:
# rasterio.crs.CRS <1.0.14 and
# old versions of opendatacube CRS
crs_input = crs_input.wkt
except AttributeError:
pass
crs = CRS.from_user_input(crs_input)
if LooseVersion(rasterio.__gdal_version__) > LooseVersion("3.0.0"):
return crs.to_wkt()
return crs.to_wkt("WKT1_GDAL")
def to_geotiff(fn, z, transform, crs=None, compress=None):
"""
Writes geotiff from an array (assumed 3d)
:param fn: filename
:param z: array (3-D)
:param transform: Affine transform
:param crs=None: coordinate ref system
:param compress: compression if needed
:return:
"""
if crs is not None:
try:
crs = CRS.from_user_input(crs)
except:
raise ValueError(f'CRS "{crs}" is not valid')
if crs.is_geographic:
raise TypeError(
"CRS is of geographic type, a projected type (unit: meters) is required"
)
with rasterio.open(
fn,
"w",
driver="GTiff",
height=z.shape[1],
width=z.shape[2],
count=z.shape[0],
dtype=z.dtype,
crs=crs.to_proj4() if crs is not None else None,
transform=transform,
compress=compress,
) as ds:
for n, _z in enumerate(z):
ds.write(_z, n + 1)
def to_geojson(geom, crs=None):
"""
Converts a single geometry in a geographically aware geojson
:param geom: shapely feature (single!!)
:param crs=None: pyproj readible crs
:return: str, geojson format
"""
# prepare a crs
if crs is not None:
try:
crs = CRS.from_user_input(crs)
except:
raise ValueError(f'CRS "{crs}" is not valid')
if crs.is_geographic:
raise TypeError(
"CRS is of geographic type, a projected type (unit: meters) is required"
)
try:
epsg = crs.to_epsg()
except:
raise ValueError(f"CRS cannot be converted to EPSG code")
# prepare json compatible crs dict
crs_json = ({
"type": "EPSG",
"properties": {
"code": epsg
}
} if crs is not None else None)
# prepare geojson feature
f = geojson.Feature(geometry=geom, properties={"ID": 0})
# collate all into a geojson feature collection
return geojson.FeatureCollection([f], crs=crs_json)
def warp(self, dst_crs):
dst_crs = CRS.from_user_input(dst_crs)
transform, width, height = warp.calculate_default_transform(
self._src.crs,
dst_crs.srs,
self._src.width,
self._src.height,
*self._src.bounds,
dst_width=self._src.width,
dst_height=self._src.height)
kwargs = self._src.meta.copy()
kwargs.update({
'crs': dst_crs.srs,
'transform': transform,
'width': width,
'height': height
})
tmpfile = tempfile.NamedTemporaryFile(prefix=tmpdir)
with rasterio.open(tmpfile.name, 'w', **kwargs) as dst:
for i in range(1, self._src.count + 1):
rasterio.warp.reproject(
source=rasterio.band(self._src, i),
destination=rasterio.band(dst, i),
src_transform=self._src.transform,
crs=self._src.crs,
dst_transform=transform,
dst_crs=dst_crs.srs,
resampling=self.resampling_method,
num_threads=multiprocessing.cpu_count(),
)
self._tmpfile = tmpfile
def project_to_camera(self, lon, lat, elevation):
""" Project a lat/lon/elevation point into the image
:param lat: The latitiude
:type lat: float
:param lon: The longitiude
:type lon: float
:param elevation: The elevation
:type elevation: float
:return: The row, col value of the pixel
:rtype: class: `np.Array`
"""
# Convert lat/lon/elev to camera CRS
transformer = Transformer.from_crs(CRS.from_user_input(4326),
self.crs,
always_xy=True)
x, y, z = transformer.transform(lon, lat, elevation)
pt = np.transpose(np.array([[x, y, z, 1.0]]))
# Do projection
img_pt_h = self.projection_matrix @ pt
img_pt = img_pt_h / img_pt_h[2]
# Offset pixel by bounds
img_pt[0] -= self.image_bounds[0]
img_pt[1] -= self.image_bounds[1]
img_pt = np.transpose(img_pt)
return img_pt[0][0:2]
def __init__(self, df, traj_id, obj_id=None, parent=None):
"""
Create Trajectory from GeoDataFrame
Parameters
----------
df : GeoDataFrame
GeoDataFrame with point geometry column and timestamp index
traj_id : any
Trajectory ID
obj_id : any
Moving object ID
parent : Trajectory
Parent trajectory
"""
if len(df) < 2:
raise ValueError(
"Trajectory dataframe must have at least two rows!")
self.id = traj_id
self.obj_id = obj_id
df.sort_index(inplace=True)
self.df = df[~df.index.duplicated(keep='first')]
self.crs = df.crs
self.parent = parent
try:
crs = CRS.from_user_input(self.crs)
self.is_latlon = crs.is_geographic
except NameError:
self.is_latlon = self.crs['init'] == from_epsg(4326)['init']
def validate(cls, value: Union[CRS, str]) -> CRS:
"""Validate CRS."""
# If input is a string we tranlate it to CRS
if not isinstance(value, CRS):
return CRS.from_user_input(value)
return value
def reproject_bounds(bounds: Bounds, src_crs: CRS, crs: CRS) -> Bounds:
"""Reproject source bounds from source CRS to destination CRS.
Make sure that coordinates fall within real world coordinates system
Taken from pixetl
"""
left, bottom, right, top = bounds
min_lng, min_lat, max_lng, max_lat = world_bounds(crs)
proj = Transformer.from_crs(CRS.from_user_input(src_crs),
crs,
always_xy=True)
reproject_top = replace_inf_nan(round(proj.transform(0, top)[1], 8),
max_lat)
reproject_left = replace_inf_nan(round(proj.transform(left, 0)[0], 8),
min_lng)
reproject_bottom = replace_inf_nan(round(proj.transform(0, bottom)[1], 8),
min_lat)
reproject_right = replace_inf_nan(round(proj.transform(right, 0)[0], 8),
max_lng)
return reproject_left, reproject_bottom, reproject_right, reproject_top
def setUp(self):
self.proj = np.array([[
-234.48497951320869, -11689.146112537686, -3420.9549093694854,
54967162069.77626
],
[
-11527.74509904331, 527.9966478964207,
-3108.9307732776556, 2267432568.205459
],
[
0.07731721986909759, 0.01342309733163904,
-0.996916676327768, -93150.24955090503
]])
self.bounds = [4405, 655, 5587, 1420]
self.cen = [411228.51669897616, 4693677.177776167, 1653.5802147550032]
self.geo_bounds = [
-88.07607063663191, 42.387928513288855, -88.07499236028416,
42.38917669615173
]
self.elev = 250.522
self.crs = CRS.from_user_input(32616)
self.path = "foo.jpg"
self.cam = Camera(self.proj, self.bounds, self.cen, self.geo_bounds,
self.elev, self.crs, self.path)
pass
def crs_from_user_input(crs_input):
"""
Return a rasterio.crs.CRS from user input.
This is to deal with change in rasterio.crs.CRS
as well as to assist in the transition between GDAL 2/3.
Parameters
----------
crs_input: Any
Input to create a CRS.
Returns
-------
rasterio.crs.CRS
"""
if isinstance(crs_input, rasterio.crs.CRS):
return crs_input
try:
# old versions of opendatacube CRS
crs_input = crs_input.wkt
except AttributeError:
pass
try:
return rasterio.crs.CRS.from_user_input(crs_input)
except CRSError:
pass
# use pyproj for edge cases
crs = CRS.from_user_input(crs_input)
if version.parse(rasterio.__gdal_version__) > version.parse("3.0.0"):
return rasterio.crs.CRS.from_wkt(crs.to_wkt())
return rasterio.crs.CRS.from_wkt(crs.to_wkt("WKT1_GDAL"))
def reproject_bounds(self, crs: CRS) -> Bounds:
"""Reproject src bounds to dst CRT.
Make sure that coordinates fall within real world coordinates
system
"""
left, bottom, right, top = self.bounds
LOGGER.debug("SRC Extent: {}, {}, {}, {}".format(
left,
bottom,
right,
top,
))
min_lng, min_lat, max_lng, max_lat = utils.world_bounds(crs)
proj = Transformer.from_crs(CRS.from_user_input(self.crs),
crs,
always_xy=True)
reproject_top = replace_inf_nan(round(proj.transform(0, top)[1], 8),
max_lat)
reproject_left = replace_inf_nan(round(proj.transform(left, 0)[0], 8),
min_lng)
reproject_bottom = replace_inf_nan(
round(proj.transform(0, bottom)[1], 8), min_lat)
reproject_right = replace_inf_nan(
round(proj.transform(right, 0)[0], 8), max_lng)
LOGGER.debug("Reprojected, cropped Extent: {}, {}, {}, {}".format(
reproject_left, reproject_bottom, reproject_right, reproject_top))
return reproject_left, reproject_bottom, reproject_right, reproject_top
def __init__(self, *args: Optional[Any], **kwargs: Optional[Any]):
if args:
klass = f"'{self.__class__.__name__}'"
if len(args) == 1 and ("crs" not in kwargs
or kwargs["crs"] is None):
wmsg = (f"{klass} received an unexpected argument. "
"Assuming 'crs' keyword argument instead...")
warn(wmsg)
kwargs["crs"] = args[0]
args = ()
else:
plural = "s" if len(args) > 1 else ""
pre = ",".join([f"'{arg}'" for arg in args[:-1]])
bad = f"{pre} and '{args[-1]}'" if pre else f"'{args[0]}'"
emsg = (
f"{klass} received {len(args)} unexpected argument{plural}, {bad}."
)
raise ValueError(emsg)
if "crs" in kwargs:
crs = kwargs.pop("crs")
crs = CRS.from_user_input(crs)
else:
crs = WGS84
self.crs = crs
super().__init__(*args, **kwargs)
def __init__(self,
shape: Union[None, MultiPolygon, Polygon] = None,
shape_crs: CRS = CRS.from_user_input("EPSG:4326"),
shapefile: Union[None, str, Path] = None):
if not (shape or shapefile):
raise ValueError("No patch input provided")
# crs input is only for shape, shapefile needs to provide
# its own crs
self._shape_crs = shape_crs
self._shape = None
self._shapefile = Path(shapefile if shapefile else "")
if isinstance(shape, Polygon):
self._shape = MultiPolygon([shape])
elif isinstance(shape, MultiPolygon):
self._shape = shape
elif shape is not None:
raise TypeError(
f"Type of shape input must be either {MultiPolygon}"
f" or {Polygon}")
elif not self._shapefile.is_file():
raise ValueError("Not shape input for patch definition")
def test_epsg():
assert CRS({"init": "EPSG:4326"}).to_epsg(20) == 4326
assert CRS({"init": "EPSG:4326"}).to_epsg() is None
assert CRS.from_user_input(4326).to_epsg() == 4326
assert CRS.from_epsg(4326).to_epsg() == 4326
assert CRS.from_user_input("epsg:4326").to_epsg() == 4326
def test_from_user_input_epsg():
assert "+proj=longlat" in CRS.from_user_input("EPSG:4326").to_proj4(4)
def test_from_user_input_custom_crs_class():
class CustomCRS(object):
def to_wkt(self):
return CRS.from_epsg(4326).to_wkt()
assert CRS.from_user_input(CustomCRS()) == CRS.from_epsg(4326)
