Newer
Older
from textwrap import dedent
from osgeo import gdal
def positions_to_poslist(positions, projection):
# TODO: maybe reproject if not lat, lon
return ' '.join([
' '.join(pair)
for pair in positions
])
def positions_from_corners(low, high):
minx, miny = low
maxx, maxy = high
return [
(minx, miny),
(maxx, miny),
(maxx, maxy),
(minx, maxy),
(minx, minx),
]
def get_footprint_from_browse(data_file, browse):
btype = browse['browse_type']
if btype == 'rectified_browse':
low, high = browse['rectified']['coord_list']
positions = positions_from_corners(low, high)
elif btype == 'footprint_browse':
positions = browse['footprint']
elif btype == 'model_in_geotiff_browse':
ds = gdal.Open(data_file)
gt = ds.GetGeoTransform()
width, height = ds.RasterXSize, ds.RasterXSize
low = (gt[0], gt[3] + gt[5] * height)
high = (gt[0] + gt[1] * width, gt[3])
positions = positions_from_corners(low, high)
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
elif btype == 'regular_grid_browse':
raise NotImplementedError('Regular grid browses are not supported')
return positions_to_poslist(
positions,
browse['reference_system_identifier'],
)
def generate_gsc_metadata(metadata):
return dedent("""\
<?xml version='1.0' encoding='UTF-8'?>
<gsc:report xmlns:sar="http://earth.esa.int/sar"
xmlns:gml="http://www.opengis.net/gml"
xmlns:eop="http://earth.esa.int/eop"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:opt="http://earth.esa.int/opt"
xmlns:gsc="http://earth.esa.int/gsc"
xmlns:atm="http://earth.esa.int/atm"
xmlns:xlink="http://www.w3.org/1999/xlink" version="2.0">
<gsc:responsibleOrgName>EOX</gsc:responsibleOrgName>
<gsc:reportType>CIRCULATION</gsc:reportType>
<gsc:dateTime>{now_time}</gsc:dateTime>
<gsc:orderReference></gsc:orderReference>
<gsc:opt_metadata version="1.2.1">
<gml:metaDataProperty>
<gsc:EarthObservationMetaData>
<eop:identifier>{identifier}</eop:identifier>
<!--<eop:parentIdentifier>D2_MG2b_FRTX_004a/other/FRSC_0059_001/SpotImage</eop:parentIdentifier>-->
<eop:acquisitionType>NOMINAL</eop:acquisitionType>
<eop:productType>{product_type}</eop:productType>
<eop:status>ARCHIVED</eop:status>
<eop:archivedIn>
<eop:ArchivingInformation>
<eop:archivingCenter>CDS</eop:archivingCenter>
<eop:archivingDate>{archiving_time}</eop:archivingDate>
</eop:ArchivingInformation>
</eop:archivedIn>
<gsc:deliveryInfo>
<gsc:deliveryDateTime>{delivery_time}</gsc:deliveryDateTime>
<gsc:deliveryMethod>ELECTRONIC</gsc:deliveryMethod>
</gsc:deliveryInfo>
</gsc:EarthObservationMetaData>
</gml:metaDataProperty>
<gml:validTime>
<gml:TimePeriod>
<gml:beginPosition>{begin_time}</gml:beginPosition>
<gml:endPosition>{end_time}</gml:endPosition>
</gml:TimePeriod>
</gml:validTime>
<gml:using>
<!--<eop:EarthObservationEquipment>
<eop:platform>
<eop:Platform>
<eop:shortName>PH1A</eop:shortName>
<eop:serialIdentifier>1A</eop:serialIdentifier>
</eop:Platform>
</eop:platform>
<eop:instrument>
<eop:Instrument>
<eop:shortName>HR</eop:shortName>
</eop:Instrument>
</eop:instrument>
<eop:sensor>
<eop:Sensor>
<eop:sensorType>OPTICAL</eop:sensorType>
<eop:operationalMode>FUS</eop:operationalMode>
<eop:resolution uom="m">0.5</eop:resolution>
</eop:Sensor>
</eop:sensor>
<eop:acquisitionParameters>
<opt:Acquisition>
<eop:orbitNumber>118</eop:orbitNumber>
<eop:orbitDirection>DESCENDING</eop:orbitDirection>
<eop:acrossTrackIncidenceAngle uom="deg">-4.070247073869651</eop:acrossTrackIncidenceAngle>
<eop:alongTrackIncidenceAngle uom="deg">2.304231907410827</eop:alongTrackIncidenceAngle>
<opt:illuminationAzimuthAngle uom="deg">164.3516878667332</opt:illuminationAzimuthAngle>
</opt:Acquisition>
</eop:acquisitionParameters>
</eop:EarthObservationEquipment>-->
</gml:using>
<gml:target>
<eop:Footprint>
<gml:multiExtentOf>
<gml:MultiSurface srsName="EPSG:4326">
<gml:surfaceMembers>
<gml:Polygon>
<gml:exterior>
<gml:LinearRing>
<gml:posList>{footprint}</gml:posList>
</gml:LinearRing>
</gml:exterior>
</gml:Polygon>
</gml:surfaceMembers>
</gml:MultiSurface>
</gml:multiExtentOf>
</eop:Footprint>
</gml:target>
<gml:resultOf/>
</gsc:opt_metadata>
</gsc:report>""".format(**metadata))