def raster_pre_add_files_to_resource_trigger(sender, **kwargs):
if(sender is RasterResource):
files = kwargs['files']
res = kwargs['resource']
if(files):
infile = files[0]
import raster_meta_extract
res_md_dict = raster_meta_extract.get_raster_meta_dict(infile.file.name)
# update core metadata coverage - box
#cov_box = res.metadata.coverages.all().filter(type='box').first()
#res.metadata.update_element('coverage', cov_box.id, type='box', value=res_md_dict['spatial_coverage_info']['wgs84_coverage_info'])
wgs_cov_info = res_md_dict['spatial_coverage_info']['wgs84_coverage_info']
res.metadata.create_element('Coverage', type='box', value=res_md_dict['spatial_coverage_info']['wgs84_coverage_info'])
# update extended original box coverage
#ori_cov_box = res.metadata.originalCoverage
#res.metadata.update_element('OriginalCoverage', ori_cov_box.id, type='box', value=res_md_dict['spatial_coverage_info']['original_coverage_info'])
if res.metadata.originalCoverage is None:
v = {'value': res_md_dict['spatial_coverage_info']['original_coverage_info'] }
res.metadata.create_element('OriginalCoverage', **v)
# update extended metadata CellInformation
res.metadata.cellInformation.delete()
res.metadata.create_element('CellInformation', name=infile.name, rows=res_md_dict['cell_and_band_info']['rows'],
columns = res_md_dict['cell_and_band_info']['columns'],
cellSizeXValue = res_md_dict['cell_and_band_info']['cellSizeXValue'],
cellSizeYValue = res_md_dict['cell_and_band_info']['cellSizeYValue'],
cellSizeUnit = res_md_dict['cell_and_band_info']['cellSizeUnit'],
cellDataType = res_md_dict['cell_and_band_info']['cellDataType'],
noDataValue = res_md_dict['cell_and_band_info']['noDataValue'])
bcount = res_md_dict['cell_and_band_info']['bandCount']
# update extended metadata BandInformation
for band in res.metadata.bandInformation:
band.delete()
for i in range(bcount):
res.metadata.create_element('BandInformation', name='Band_' + str(i+1), variableName='Unnamed', variableUnit='Unnamed', method='', comment='')
def raster_pre_create_resource_trigger(sender, **kwargs):
if(sender is RasterResource):
files = kwargs['files']
title = kwargs['title']
metadata = kwargs['metadata']
from collections import OrderedDict
if(files):
import raster_meta_extract
infile = files[0]
res_md_dict = raster_meta_extract.get_raster_meta_dict(infile.file.name)
wgs_cov_info = res_md_dict['spatial_coverage_info']['wgs84_coverage_info']
# add core metadata coverage - box
box = {'coverage': {'type': 'box', 'value': wgs_cov_info }}
metadata.append(box)
# Save extended meta to metadata variable
ori_cov = {'OriginalCoverage': {'value': res_md_dict['spatial_coverage_info']['original_coverage_info'] }}
metadata.append(ori_cov)
# Save extended meta to metadata variable
cellInfo = OrderedDict([
('name', infile.name),
('rows', res_md_dict['cell_and_band_info']['rows']),
('columns', res_md_dict['cell_and_band_info']['columns']),
('cellSizeXValue', res_md_dict['cell_and_band_info']['cellSizeXValue']),
('cellSizeYValue', res_md_dict['cell_and_band_info']['cellSizeYValue']),
('cellSizeUnit', res_md_dict['cell_and_band_info']['cellSizeUnit']),
('cellDataType', res_md_dict['cell_and_band_info']['cellDataType']),
('noDataValue', res_md_dict['cell_and_band_info']['noDataValue'])
])
metadata.append({'CellInformation': cellInfo})
bcount = res_md_dict['cell_and_band_info']['bandCount']
else:
# initialize required raster metadata to be place holders to be edited later by users
cell_info = OrderedDict([
('name', title),
('rows', 0),
('columns', 0),
('cellSizeXValue', 0),
('cellSizeYValue', 0),
('cellSizeUnit', "NA"),
('cellDataType', "NA"),
('noDataValue', 0)
])
metadata.append({'CellInformation': cell_info})
bcount = 1
spatial_coverage_info = OrderedDict([
('units', "NA"),
('projection', 'NA'),
('northlimit', 'NA'),
('southlimit', 'NA'),
('eastlimit', 'NA'),
('westlimit', 'NA')
])
# # add core metadata coverage - box
# box = {'coverage': {'type': 'box', 'value': spatial_coverage_info}}
# metadata.append(box)
# Save extended meta to metadata variable
ori_cov = {'OriginalCoverage': {'value': spatial_coverage_info }}
metadata.append(ori_cov)
for i in range(bcount):
band_dict = OrderedDict()
band_dict['name'] = 'Band_' + str(i+1)
band_dict['variableName'] = 'Unnamed'
band_dict['variableUnit'] = 'Unnamed'
band_dict['method'] = ''
band_dict['comment'] = ''
metadata.append({'BandInformation': band_dict})
