Added the GHOP modules to the callback.
The ENABLE_MODULE has been added to ensure that the current build does not suffer from any weird artefacts that might occur due to the presence of this module. Of course in time it will be removed.
Thanks Madhusudan for getting us this far ^_^. Minor CSS and image patches should follow shortly.
"""
This module includes some utility functions for inspecting the layout
of a GDAL data source -- the functionality is analogous to the output
produced by the `ogrinfo` utility.
"""
from django.contrib.gis.gdal import DataSource
from django.contrib.gis.gdal.geometries import GEO_CLASSES
def ogrinfo(data_source, num_features=10):
"""
Walks the available layers in the supplied `data_source`, displaying
the fields for the first `num_features` features.
"""
# Checking the parameters.
if isinstance(data_source, str):
data_source = DataSource(data_source)
elif isinstance(data_source, DataSource):
pass
else:
raise Exception, 'Data source parameter must be a string or a DataSource object.'
for i, layer in enumerate(data_source):
print "data source : %s" % data_source.name
print "==== layer %s" % i
print " shape type: %s" % GEO_CLASSES[layer.geom_type.num].__name__
print " # features: %s" % len(layer)
print " srs: %s" % layer.srs
extent_tup = layer.extent.tuple
print " extent: %s - %s" % (extent_tup[0:2], extent_tup[2:4])
print "Displaying the first %s features ====" % num_features
width = max(*map(len,layer.fields))
fmt = " %%%ss: %%s" % width
for j, feature in enumerate(layer[:num_features]):
print "=== Feature %s" % j
for fld_name in layer.fields:
type_name = feature[fld_name].type_name
output = fmt % (fld_name, type_name)
val = feature.get(fld_name)
if val:
if isinstance(val, str):
val_fmt = ' ("%s")'
else:
val_fmt = ' (%s)'
output += val_fmt % val
else:
output += ' (None)'
print output
# For backwards compatibility.
sample = ogrinfo