def handle(self, request):
decoder = WMS10GetMapDecoder(request.GET)
bbox = decoder.bbox
srs = decoder.srs
layers = decoder.layers
if not layers:
raise InvalidParameterException("No layers specified", "layers")
srid = crss.parseEPSGCode(
srs, (crss.fromShortCode, crss.fromURN, crss.fromURL)
)
if srid is None:
raise InvalidCRS(srs, "srs")
# WMS 1.1 knows no swapped axes
minx, miny, maxx, maxy = bbox
subsets = Subsets((
Trim("x", minx, maxx),
Trim("y", miny, maxy),
), crs=srs)
root_group = lookup_layers(layers, subsets)
result, _ = self.renderer.render(
root_group, request.GET.items(), subsets=subsets,
width=int(decoder.width), height=int(decoder.height)
)
return to_http_response(result)
def handle(self, request):
decoder = WMS11GetMapDecoder(request.GET)
bbox = decoder.bbox
time = decoder.time
srs = decoder.srs
layers = decoder.layers
if not layers:
raise InvalidParameterException("No layers specified", "layers")
srid = crss.parseEPSGCode(
srs, (crss.fromShortCode, crss.fromURN, crss.fromURL)
)
if srid is None:
raise InvalidCRS(srs, "srs")
# WMS 1.1 knows no swapped axes
minx, miny, maxx, maxy = bbox
subsets = Subsets((
Trim("x", minx, maxx),
Trim("y", miny, maxy),
), crs=srs)
if time:
subsets.append(time)
renderer = self.renderer
root_group = lookup_layers(layers, subsets, renderer.suffixes)
result, _ = renderer.render(
root_group, request.GET.items(),
time=decoder.time, bands=decoder.dim_bands
)
return to_http_response(result)
def handle(self, request):
decoder = WMS13GetMapDecoder(request.GET)
bbox = decoder.bbox
time = decoder.time
crs = decoder.crs
layers = decoder.layers
if not layers:
raise InvalidParameterException("No layers specified", "layers")
srid = crss.parseEPSGCode(
crs, (crss.fromShortCode, crss.fromURN, crss.fromURL))
if srid is None:
raise InvalidCRS(crs, "crs")
if crss.hasSwappedAxes(srid):
miny, minx, maxy, maxx = bbox
else:
minx, miny, maxx, maxy = bbox
subsets = Subsets((
Trim("x", minx, maxx),
Trim("y", miny, maxy),
),
crs=crs)
if time:
subsets.append(time)
# TODO: adjust way to get to renderer
styles = decoder.styles
if styles:
styles = styles.split(',')
from eoxserver.services.ows.wms.layerquery import LayerQuery
render_map = LayerQuery().create_map(
layers=layers,
styles=styles,
bbox=bbox,
crs=crs,
width=decoder.width,
height=decoder.height,
format=decoder.format,
transparent=decoder.transparent,
bgcolor=decoder.bgcolor,
time=time,
range=decoder.dim_range,
bands=None,
wavelengths=None,
elevation=None,
cql=decoder.cql,
)
from eoxserver.render.mapserver.map_renderer import MapserverMapRenderer
return MapserverMapRenderer().render_map(render_map)
def __init__(self, crs_or_srid):
if isinstance(crs_or_srid, int):
pass
elif isinstance(crs_or_srid, basestring):
crs_or_srid = parseEPSGCode(crs_or_srid, (fromShortCode, fromURL, fromURN, fromProj4Str))
else:
raise ValueError("Unable to obtain CRS from '%s'." % type(crs_or_srid).__name__)
self.srid = crs_or_srid
def srid(self):
""" Tries to find the correct integer SRID for the crs.
"""
crs = self.crs
if crs is not None:
srid = crss.parseEPSGCode(
crs, (crss.fromURL, crss.fromURN, crss.fromShortCode))
if srid is None and not crss.is_image_crs(crs):
raise InvalidSubsettingCrsException(
"Could not parse EPSG code from URI '%s'" % crs)
return srid
return None
def __init__(self, crs_or_srid, temporary_directory=None):
if isinstance(crs_or_srid, int):
pass
elif isinstance(crs_or_srid, string_types):
crs_or_srid = parseEPSGCode(
crs_or_srid, (fromShortCode, fromURL, fromURN, fromProj4Str))
else:
raise ValueError("Unable to obtain CRS from '%s'." %
type(crs_or_srid).__name__)
self.srid = crs_or_srid
self.temporary_directory = temporary_directory
def parse(cls, raw_value):
""" Cast or parse input to its proper represenation."""
if isinstance(raw_value, cls.dtype):
if raw_value == 0 or validateEPSGCode(raw_value):
return raw_value
else:
if raw_value == "ImageCRS":
return 0
else:
value = parseEPSGCode(raw_value, (fromURL, fromURN, fromShortCode))
if value is not None:
return value
raise ValueError("Invalid CRS %r!" % raw_value)
def get_llbbox(self, bbox, crs):
srid = crss.parseEPSGCode(
crs, (crss.fromShortCode, crss.fromURN, crss.fromURL))
if srid != 4326:
poly = Polygon.from_bbox((bbox))
poly.srid = 4326
poly.transform(srid)
return poly.extent
return bbox
def bbox(self):
bbox = self._bbox
crs = self.crs
srid = crss.parseEPSGCode(
self.crs, (crss.fromShortCode, crss.fromURN, crss.fromURL))
if srid is None:
raise InvalidCRS(crs, "crs")
if crss.hasSwappedAxes(srid):
miny, minx, maxy, maxx = bbox
else:
minx, miny, maxx, maxy = bbox
return (minx, miny, maxx, maxy)
def get_llbbox(self, bbox, crs):
srid = crss.parseEPSGCode(
crs, (crss.fromShortCode, crss.fromURN, crss.fromURL)
)
if srid != 4326:
poly = Polygon.from_bbox((bbox))
poly.srid = 4326
poly.transform(srid)
return poly.extent
return bbox
def parse(cls, raw_value):
""" Cast or parse input to its proper representation."""
if isinstance(raw_value, cls.dtype):
if raw_value == 0 or validateEPSGCode(raw_value):
return raw_value
else:
if raw_value == "ImageCRS":
return 0
else:
value = parseEPSGCode(raw_value,
(fromURL, fromURN, fromShortCode))
if value is not None:
return value
raise ValueError("Invalid CRS %r!" % raw_value)
def srid(self):
""" Tries to find the correct integer SRID for the crs.
"""
crs = self.crs
if crs is not None:
srid = crss.parseEPSGCode(crs,
(crss.fromURL, crss.fromURN, crss.fromShortCode)
)
if srid is None and not crss.is_image_crs(crs):
raise InvalidSubsettingException(
"Could not parse EPSG code from URI '%s'" % crs
)
return srid
return None
def xy_srid(self):
xy_subsets = filter(lambda s: s.is_x or s.is_y, self)
if not len(xy_subsets):
return None
all_crss = set(
map(lambda s: s.crs, xy_subsets)
)
if len(all_crss) != 1:
raise Exception("All X/Y crss must be the same")
xy_crs = iter(all_crss).next()
if xy_crs is not None:
return crss.parseEPSGCode(xy_crs, (crss.fromURL, crss.fromURN))
return None
def handle(self, request):
decoder = WMS13GetMapDecoder(request.GET)
bbox = decoder.bbox
time = decoder.time
crs = decoder.crs
layers = decoder.layers
if not layers:
raise InvalidParameterException("No layers specified", "layers")
srid = crss.parseEPSGCode(
crs, (crss.fromShortCode, crss.fromURN, crss.fromURL)
)
if srid is None:
raise InvalidCRS(crs, "crs")
if crss.hasSwappedAxes(srid):
miny, minx, maxy, maxx = bbox
else:
minx, miny, maxx, maxy = bbox
subsets = Subsets((
Trim("x", minx, maxx),
Trim("y", miny, maxy),
), crs=crs)
if time:
subsets.append(time)
renderer = self.renderer
root_group = lookup_layers(layers, subsets, renderer.suffixes)
result, _ = renderer.render(
root_group, request.GET.items(),
width=int(decoder.width), height=int(decoder.height),
time=decoder.time, bands=decoder.dim_bands, subsets=subsets,
elevation=decoder.elevation,
dimensions=dict(
(key[4:], values) for key, values in decoder.dimensions
)
)
return to_http_response(result)
def warp_fields(coverages, field_name, bbox, crs, width, height):
driver = gdal.GetDriverByName('MEM')
out_ds = driver.Create(
'', width, height, 1,
coverages[0].range_type.get_field(field_name).data_type)
out_ds.SetGeoTransform([
bbox[0],
(bbox[2] - bbox[0]) / width,
0,
bbox[3],
0,
-(bbox[3] - bbox[1]) / height,
])
epsg = crss.parseEPSGCode(crs, [crss.fromShortCode])
sr = osr.SpatialReference()
sr.ImportFromEPSG(epsg)
out_ds.SetProjection(sr.ExportToWkt())
for coverage in coverages:
location = coverage.get_location_for_field(field_name)
band_index = coverage.get_band_index_for_field(field_name)
orig_ds = gdal.open_with_env(location.path, location.env)
vrt_filename = None
if orig_ds.RasterCount > 1:
vrt_filename = '/vsimem/' + uuid4().hex
gdal.BuildVRT(vrt_filename, orig_ds, bandList=[band_index])
ds = gdal.Open(vrt_filename)
else:
ds = orig_ds
gdal.Warp(out_ds, ds)
ds = None
if vrt_filename:
gdal.Unlink(vrt_filename)
band = out_ds.GetRasterBand(1)
return band.ReadAsArray()
def parse_mask(mask_elem):
nsmap = {k: v for k, v in iteritems(mask_elem.nsmap) if k}
# name = mask_elem.xpath('gml:name/text()', namespaces=nsmap)[0]
try:
crs = mask_elem.xpath('gml:boundedBy/gml:Envelope/@srsName',
namespaces=nsmap)[0]
except IndexError:
# just return an empty polygon when no mask available
return MultiPolygon()
srid = crss.parseEPSGCode(crs, [crss.fromURN])
swap = crss.hasSwappedAxes(srid)
mask_features = [
parse_polygon(polygon_elem, nsmap, swap)
for polygon_elem in mask_elem.xpath(
'eop:maskMembers/eop:MaskFeature/eop:extentOf/gml:Polygon',
namespaces=nsmap)
]
return MultiPolygon(mask_features, srid=srid)
def handle(self, request):
decoder = WMS13GetFeatureInfoDecoder(request.GET)
bbox = decoder.bbox
time = decoder.time
crs = decoder.crs
layers = decoder.layers
if not layers:
raise InvalidParameterException("No layers specified", "layers")
srid = crss.parseEPSGCode(
crs, (crss.fromShortCode, crss.fromURN, crss.fromURL))
if srid is None:
raise InvalidParameterException("Invalid CRS specifier.", "crs")
if crss.hasSwappedAxes(srid):
miny, minx, maxy, maxx = bbox
else:
minx, miny, maxx, maxy = bbox
subsets = Subsets((
Trim("x", minx, maxx),
Trim("y", miny, maxy),
),
crs=crs)
if time:
subsets.append(time)
renderer = self.renderer
root_group = lookup_layers(layers, subsets, renderer.suffixes)
result, _ = renderer.render(root_group,
request.GET.items(),
request,
time=decoder.time,
bands=decoder.dim_bands)
return to_http_response(result)
def handle(self, request):
decoder = WMS13GetMapDecoder(request.GET)
bbox = decoder.bbox
time = decoder.time
crs = decoder.crs
layers = decoder.layers
elevation = decoder.elevation
if not layers:
raise InvalidParameterException("No layers specified", "layers")
srid = crss.parseEPSGCode(
crs, (crss.fromShortCode, crss.fromURN, crss.fromURL)
)
if srid is None:
raise InvalidCRS(crs, "crs")
if crss.hasSwappedAxes(srid):
miny, minx, maxy, maxx = bbox
else:
minx, miny, maxx, maxy = bbox
subsets = Subsets((
Trim("x", minx, maxx, crs),
Trim("y", miny, maxy, crs),
))
if time:
subsets.append(time)
renderer = self.renderer
result, _ = renderer.render(
layers, (minx, miny, maxx, maxy), crs,
(decoder.width, decoder.height), decoder.format, time, elevation, decoder.styles
)
return to_http_response(result)
def handle(self, request):
decoder = WMS13GetFeatureInfoDecoder(request.GET)
bbox = decoder.bbox
time = decoder.time
crs = decoder.crs
layers = decoder.layers
if not layers:
raise InvalidParameterException("No layers specified", "layers")
srid = crss.parseEPSGCode(
crs, (crss.fromShortCode, crss.fromURN, crss.fromURL)
)
if srid is None:
raise InvalidParameterException("Invalid CRS specifier.", "crs")
if crss.hasSwappedAxes(srid):
miny, minx, maxy, maxx = bbox
else:
minx, miny, maxx, maxy = bbox
subsets = Subsets((
Trim("x", minx, maxx),
Trim("y", miny, maxy),
), crs=crs)
if time:
subsets.append(time)
renderer = self.renderer
root_group = lookup_layers(layers, subsets, renderer.suffixes)
result, _ = renderer.render(
root_group, request.GET.items(),
time=decoder.time, bands=decoder.dim_bands
)
return to_http_response(result)
def handle(self, request):
decoder = WMS13GetMapDecoder(request.GET)
bbox = decoder.bbox
time = decoder.time
crs = decoder.crs
layers = decoder.layers
elevation = decoder.elevation
if not layers:
raise InvalidParameterException("No layers specified", "layers")
srid = crss.parseEPSGCode(
crs, (crss.fromShortCode, crss.fromURN, crss.fromURL))
if srid is None:
raise InvalidCRS(crs, "crs")
if crss.hasSwappedAxes(srid):
miny, minx, maxy, maxx = bbox
else:
minx, miny, maxx, maxy = bbox
subsets = Subsets((
Trim("x", minx, maxx, crs),
Trim("y", miny, maxy, crs),
))
if time:
subsets.append(time)
renderer = self.renderer
result, _ = renderer.render(layers, (minx, miny, maxx, maxy), crs,
(decoder.width, decoder.height),
decoder.format, time, elevation,
decoder.styles)
return to_http_response(result)
def convert_GeoTIFF_2_NiFTi(coverage, in_fname, out_fname, bbox, crs):
srid = crss.parseEPSGCode(crs, (crss.fromShortCode, crss.fromURN, crss.fromURL))
dataset = gdal.Open(in_fname, gdalconst.GA_ReadOnly)
in_sr = osr.SpatialReference()
in_sr.ImportFromEPSG(4326) # TODO: get real projection value
out_sr = osr.SpatialReference()
out_sr.ImportFromEPSG(srid)
if not in_sr.IsSame(out_sr):
raise Exception(dataset.GetProjection())
ct = osr.CoordinateTransformation(out_sr, in_sr)
p0 = ct.TransformPoint(bbox[0], bbox[1])
p1 = ct.TransformPoint(bbox[2], bbox[3])
#TODO
#gt = dataset.GetGeoTransform()
#origin x, offset x1, offset y1, origin y, offset x2, offset y2
image_bbox = coverage.footprint.extent
res_x = (image_bbox[2] - image_bbox[0]) / dataset.RasterXSize
res_y = (image_bbox[1] - image_bbox[3]) / dataset.RasterYSize
bbox[0] = max(image_bbox[0], bbox[0])
bbox[1] = max(image_bbox[1], bbox[1])
bbox[2] = min(image_bbox[2], bbox[2])
bbox[3] = min(image_bbox[3], bbox[3])
r = (
int( math.floor((bbox[0] - image_bbox[0]) / res_x) ),
int( math.floor((bbox[3] - image_bbox[3]) / res_y) ),
int( math.ceil((bbox[2] - image_bbox[0]) / res_x) ),
int( math.ceil((bbox[1] - image_bbox[3]) / res_y) )
)
from ngeo_browse_server.config import models
layer = models.Browse.objects.get(coverage_id=coverage.identifier).browse_layer
if ('GOME-2' in coverage.identifier or 'NPL3Merged' in coverage.identifier or 'BASCOE' in coverage.identifier or 'LPL2_MIPAS' in coverage.identifier):
scale = 1000000
scale_y = res_y
scale_x = res_x
scale_z = 5
else:
scale = 1
scale_y = res_y*200
scale_x = res_x*200
scale_z = 5
if 'GOME-2' in coverage.identifier:
layers = [3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]
volume = np.array(dataset.GetRasterBand(2).ReadAsArray(r[0], r[1], r[2]-r[0], r[3]-r[1])*scale )
for i in layers:
volume=np.dstack((volume, dataset.GetRasterBand(i).ReadAsArray(r[0], r[1], r[2]-r[0], r[3]-r[1])*scale ))
elif 'BASCOE' in coverage.identifier:
layers = [9, 13, 17, 19, 21, 24, 27, 28, 29, 31, 33, 34, 35, 37]
volume = np.array(dataset.GetRasterBand(4).ReadAsArray(r[0], r[1], r[2]-r[0], r[3]-r[1])*scale )
for i in layers:
volume=np.dstack((volume, dataset.GetRasterBand(i).ReadAsArray(r[0], r[1], r[2]-r[0], r[3]-r[1])*scale ))
else:
volume = np.array(dataset.GetRasterBand(1).ReadAsArray(r[0], r[1], r[2]-r[0], r[3]-r[1])*scale )
for i in range(2, dataset.RasterCount+1):
volume=np.dstack((volume, dataset.GetRasterBand(i).ReadAsArray(r[0], r[1], r[2]-r[0], r[3]-r[1])*scale ))
volume = np.clip(volume, layer.radiometric_interval_min, layer.radiometric_interval_max)
offset = random.uniform(0.00000000000000, 0.00000000000001)
scale = np.array([scale_y+offset,scale_x+offset,scale_z+offset,1])
affine = np.diag(scale)
img = nib.Nifti1Image(volume, affine)
#img = nib.Nifti1Image(volume, np.eye(4))
img.to_filename(out_fname)
def handle(self, request):
decoder = self.get_decoder(request)
minx, miny, maxx, maxy = decoder.bbox
x = decoder.x
y = decoder.y
time = decoder.time
crs = decoder.srs
layer_names = decoder.layers
width = decoder.width
height = decoder.height
# calculate the zoomlevel
zoom = calculate_zoom((minx, miny, maxx, maxy), width, height, crs)
if not layer_names:
raise InvalidParameterException("No layers specified", "layers")
srid = crss.parseEPSGCode(
crs, (crss.fromShortCode, crss.fromURN, crss.fromURL))
if srid is None:
raise InvalidCRS(crs, "crs")
field_mapping, mapping_choices = get_field_mapping_for_model(
models.Product)
# calculate resolution
# TODO: dateline
resx = (maxx - minx) / width
resy = (maxy - miny) / height
p_minx = x * resx
p_miny = y * resy
p_maxx = (x + 1) * resx
p_maxy = (y + 1) * resy
filter_expressions = filters.bbox(filters.attribute(
'footprint', field_mapping),
p_minx,
p_miny,
p_maxx,
p_maxy,
crs,
bboverlaps=False)
if time:
filter_expressions &= filters.time_interval(time)
cql = getattr(decoder, 'cql', None)
if cql:
cql_filters = to_filter(parse(cql), field_mapping, mapping_choices)
filter_expressions &= cql_filters
# TODO: multiple sorts per layer?
sort_by = getattr(decoder, 'sort_by', None)
if sort_by:
sort_by = (field_mapping.get(sort_by[0], sort_by[0]), sort_by[1])
styles = decoder.styles
if styles:
styles = styles.split(',')
else:
styles = [None] * len(layer_names)
dimensions = {
"time": time,
"elevation": decoder.elevation,
"ranges": decoder.dim_range,
"bands": decoder.dim_bands,
"wavelengths": decoder.dim_wavelengths,
}
feature_info_renderer = get_feature_info_renderer()
layer_mapper = LayerMapper(
feature_info_renderer.get_supported_layer_types(), "__")
layers = []
for layer_name, style in zip(layer_names, styles):
name, suffix = layer_mapper.split_layer_suffix_name(layer_name)
layer = layer_mapper.lookup_layer(name,
suffix,
style,
filter_expressions,
sort_by,
zoom=zoom,
**dimensions)
layers.append(layer)
map_ = Map(width=decoder.width,
height=decoder.height,
format=decoder.format,
bbox=(minx, miny, maxx, maxy),
crs=crs,
bgcolor=decoder.bgcolor,
transparent=decoder.transparent,
layers=layers)
result_bytes, content_type, filename = feature_info_renderer.render_feature_info(
map_)
response = HttpResponse(result_bytes, content_type=content_type)
if filename:
response[
'Content-Disposition'] = 'inline; filename="%s"' % filename
return response
def parse_srs_name(srs_name):
if not srs_name:
return None
return crss.parseEPSGCode(srs_name, SRS_PARSERS)
def translate_params(self, params, range_type):
""" "Translate" parameters to be understandable by mapserver.
"""
if params.version.startswith("2.0"):
for key, value in params:
if key == "interpolation":
interpolation = INTERPOLATION_TRANS.get(value)
if not interpolation:
raise InterpolationMethodNotSupportedException(
"Interpolation method '%s' is not supported."
% value
)
yield key, value
else:
yield key, value
rangesubset = params.rangesubset
if rangesubset:
yield "rangesubset", ",".join(
map(str, rangesubset.get_band_indices(range_type, 1))
)
# TODO: this only works in newer MapServer implementations
# (since 6.4?).
SCALE_AVAILABLE = ms.msGetVersionInt() > 60401
scalefactor = params.scalefactor
if scalefactor is not None:
if SCALE_AVAILABLE:
yield "scalefactor", str(scalefactor)
else:
raise RenderException(
"'ScaleFactor' is not supported by MapServer in the "
"current version.", "scalefactor"
)
for scale in params.scales:
scaleaxes = []
if isinstance(scale, ScaleSize):
yield "size", "%s(%d)" % (scale.axis, scale.size)
elif isinstance(scale, ScaleExtent):
yield "size", "%s(%d)" % (scale.axis, scale.high-scale.low)
elif isinstance(scale, ScaleAxis):
if SCALE_AVAILABLE:
scaleaxes.append(scale)
else:
raise RenderException(
"'ScaleAxes' is not supported by MapServer in the "
"current version.", "scaleaxes"
)
if scaleaxes:
yield "scaleaxes", ",".join(
"%s(%f)" % (scale.axis, scale.value)
for scale in scaleaxes
)
if params.outputcrs is not None:
srid = crss.parseEPSGCode(params.outputcrs,
(crss.fromURL, crss.fromURN, crss.fromShortCode)
)
if srid is None:
raise InvalidOutputCrsException(
"Failed to extract an EPSG code from the OutputCRS URI "
"'%s'." % params.outputcrs
)
yield "outputcrs", params.outputcrs
else:
for key, value in params:
yield key, value
def translate_params(self, params, range_type):
""" "Translate" parameters to be understandable by mapserver.
"""
if params.version.startswith("2.0"):
for key, value in params:
if key == "interpolation":
interpolation = INTERPOLATION_TRANS.get(value)
if not interpolation:
raise InterpolationMethodNotSupportedException(
"Interpolation method '%s' is not supported." %
value)
yield key, value
else:
yield key, value
rangesubset = params.rangesubset
if rangesubset:
yield "rangesubset", ",".join(
map(str, rangesubset.get_band_indices(range_type, 1)))
# TODO: this only works in newer MapServer implementations
# (since 6.4?).
SCALE_AVAILABLE = ms.msGetVersionInt() > 60401
scalefactor = params.scalefactor
if scalefactor is not None:
if SCALE_AVAILABLE:
yield "scalefactor", str(scalefactor)
else:
raise RenderException(
"'ScaleFactor' is not supported by MapServer in the "
"current version.", "scalefactor")
for scale in params.scales:
scaleaxes = []
if isinstance(scale, ScaleSize):
yield "size", "%s(%d)" % (scale.axis, scale.size)
elif isinstance(scale, ScaleExtent):
yield "size", "%s(%d)" % (scale.axis,
scale.high - scale.low)
elif isinstance(scale, ScaleAxis):
if SCALE_AVAILABLE:
scaleaxes.append(scale)
else:
raise RenderException(
"'ScaleAxes' is not supported by MapServer in the "
"current version.", "scaleaxes")
if scaleaxes:
yield "scaleaxes", ",".join("%s(%f)" %
(scale.axis, scale.scale)
for scale in scaleaxes)
if params.outputcrs is not None:
srid = crss.parseEPSGCode(
params.outputcrs,
(crss.fromURL, crss.fromURN, crss.fromShortCode))
if srid is None:
raise InvalidOutputCrsException(
"Failed to extract an EPSG code from the OutputCRS URI "
"'%s'." % params.outputcrs)
yield "outputcrs", params.outputcrs
else:
for key, value in params:
yield key, value
def convert_collection_GeoTIFF_2_NiFTi (coverage_collection, out_fname, bbox, crs):
srid = crss.parseEPSGCode(crs, (crss.fromShortCode, crss.fromURN, crss.fromURL))
raster_collection = []
dataset = gdal.Open(coverage_collection[0][1], gdalconst.GA_ReadOnly)
image_bbox = coverage_collection[0][0].footprint.extent
res_x = (image_bbox[2] - image_bbox[0]) / dataset.RasterXSize
res_y = (image_bbox[1] - image_bbox[3]) / dataset.RasterYSize
size_x = abs(int((bbox[2]-bbox[0])/res_x))
size_y = abs(int((bbox[3]-bbox[1])/res_y))
builder = VRTBuilder(size_x, size_y, len(coverage_collection), coverage_collection[0][0].range_type.bands.all()[0].data_type)
for i, (coverage, in_fname) in enumerate(coverage_collection, start=1):
dataset = gdal.Open(str(in_fname), gdalconst.GA_ReadOnly)
in_sr = osr.SpatialReference()
in_sr.ImportFromEPSG(4326) # TODO: get real projection value
out_sr = osr.SpatialReference()
out_sr.ImportFromEPSG(srid)
if not in_sr.IsSame(out_sr):
raise Exception(dataset.GetProjection())
ct = osr.CoordinateTransformation(out_sr, in_sr)
p0 = ct.TransformPoint(bbox[0], bbox[1])
p1 = ct.TransformPoint(bbox[2], bbox[3])
image_bbox = coverage.footprint.extent
res_x = abs(image_bbox[2] - image_bbox[0]) / dataset.RasterXSize
res_y = abs(image_bbox[1] - image_bbox[3]) / dataset.RasterYSize
dst_rect = (
int( math.floor((image_bbox[0] - bbox[0]) / res_x) ), # x offset
int( math.floor((bbox[3] - image_bbox[3]) / res_y) ), # y offset
dataset.RasterXSize, # x size
dataset.RasterYSize # y size
)
builder.add_simple_source(i, str(in_fname), 1, src_rect=(0, 0, dataset.RasterXSize, dataset.RasterYSize), dst_rect=dst_rect)
volume = builder.dataset.GetRasterBand(1).ReadAsArray()
for i in range(2, len(coverage_collection) + 1):
volume = np.dstack((volume, builder.dataset.GetRasterBand(i).ReadAsArray()))
offset = random.uniform(0.00000000000000, 0.00000000000001)
scale = np.array([res_y*800+offset,res_x*800+offset,res_x*2400+offset,1])
affine = np.diag(scale)
img = nib.Nifti1Image(volume, affine)
#img = nib.Nifti1Image(volume, np.eye(4))
img.to_filename(out_fname)