def _single_feature(feat, transformer):
# existing feature json
obj = {"type": "Feature"}
json_str = QgsJsonUtils.exportAttributes(feat)
props = json.loads(json_str)
props = _xyz_props(props)
if QGS_XYZ_ID in props:
v = props.pop(QGS_XYZ_ID)
if not is_new: obj[XYZ_ID] = v
obj["properties"] = props
geom = feat.geometry()
res = geom.transform(transformer)
geom_ = json.loads(geom.asJson())
if geom_ is None:
# print(obj)
return obj
obj["geometry"] = geom_
# bbox = geom.boundingBox()
# # print("bbox: %s"%bbox.toString())
# if bbox.isEmpty():
# if "coordinates" in geom_:
# obj["bbox"] = list(geom_["coordinates"]) * 2
# else:
# obj["bbox"] = [bbox.xMinimum(), bbox.yMinimum(), 0.0, bbox.xMaximum(), bbox.yMaximum(), 0.0]
# obj["bbox"] = [bbox.xMinimum(), bbox.yMinimum(), bbox.xMaximum(), bbox.yMaximum()]
return obj
def _single_feature(feat):
# existing feature json
if feat is None: return None
obj = {"type": "Feature"}
json_str = QgsJsonUtils.exportAttributes(feat)
props = json.loads(json_str)
props.pop(QGS_ID, None)
v = props.pop(QGS_XYZ_ID, None)
if (v is not None and v is not ""):
if v in exist_feat_id:
return None
exist_feat_id.add(v)
if not is_new: obj[XYZ_ID] = v
props = _xyz_props(props)
obj["properties"] = props
geom = feat.geometry()
geom_ = json.loads(geom.asJson())
if geom_ is None:
# print_qgis(obj)
return obj
obj["geometry"] = geom_
# bbox = geom.boundingBox()
# # print_qgis("bbox: %s"%bbox.toString())
# if bbox.isEmpty():
# if "coordinates" in geom_:
# obj["bbox"] = list(geom_["coordinates"]) * 2
# else:
# obj["bbox"] = [bbox.xMinimum(), bbox.yMinimum(), 0.0, bbox.xMaximum(), bbox.yMaximum(), 0.0]
# obj["bbox"] = [bbox.xMinimum(), bbox.yMinimum(), bbox.xMaximum(), bbox.yMaximum()]
return obj
def testExportAttributes(self):
""" test exporting feature's attributes to JSON object """
fields = QgsFields()
# test empty attributes
feature = QgsFeature(fields, 5)
expected = "{}"
self.assertEqual(QgsJsonUtils.exportAttributes(feature), expected)
# test feature with attributes
fields.append(QgsField("name", QVariant.String))
fields.append(QgsField("cost", QVariant.Double))
fields.append(QgsField("population", QVariant.Int))
feature = QgsFeature(fields, 5)
feature.setGeometry(QgsGeometry(QgsPoint(5, 6)))
feature.setAttributes(['Valsier Peninsula', 6.8, 198])
expected = """{"name":"Valsier Peninsula",
"cost":6.8,
"population":198}"""
self.assertEqual(QgsJsonUtils.exportAttributes(feature), expected)
# test using field formatters
source = QgsVectorLayer(
"Point?field=fldtxt:string&field=fldint:integer", "parent",
"memory")
pf1 = QgsFeature()
pf1.setFields(source.fields())
pf1.setAttributes(["test1", 1])
setup = QgsEditorWidgetSetup('ValueMap',
{"map": {
"one": 1,
"two": 2,
"three": 3
}})
source.setEditorWidgetSetup(1, setup)
expected = """{"fldtxt":"test1",
"fldint":"one"}"""
self.assertEqual(QgsJsonUtils.exportAttributes(pf1, source), expected)
def testExportAttributes(self):
""" test exporting feature's attributes to JSON object """
fields = QgsFields()
# test empty attributes
feature = QgsFeature(fields, 5)
expected = "{}"
self.assertEqual(QgsJsonUtils.exportAttributes(feature), expected)
# test feature with attributes
fields.append(QgsField("name", QVariant.String))
fields.append(QgsField("cost", QVariant.Double))
fields.append(QgsField("population", QVariant.Int))
feature = QgsFeature(fields, 5)
feature.setGeometry(QgsGeometry(QgsPoint(5, 6)))
feature.setAttributes(['Valsier Peninsula', 6.8, 198])
expected = """{"name":"Valsier Peninsula",
"cost":6.8,
"population":198}"""
self.assertEqual(QgsJsonUtils.exportAttributes(feature), expected)
# test using field formatters
source = QgsVectorLayer("Point?field=fldtxt:string&field=fldint:integer",
"parent", "memory")
pf1 = QgsFeature()
pf1.setFields(source.fields())
pf1.setAttributes(["test1", 1])
setup = QgsEditorWidgetSetup('ValueMap', {"map": {"one": 1, "two": 2, "three": 3}})
source.setEditorWidgetSetup(1, setup)
expected = """{"fldtxt":"test1",
"fldint":"one"}"""
self.assertEqual(QgsJsonUtils.exportAttributes(pf1, source), expected)
def _single_feature(feat):
# existing feature json
if feat is None:
return None
obj = {"type": "Feature"}
json_str = QgsJsonUtils.exportAttributes(feat)
props = json.loads(json_str)
props.pop(QGS_ID, None)
v = props.pop(QGS_XYZ_ID, None)
if v is not None and v != "":
if v in exist_feat_id:
return None
exist_feat_id.add(v)
if not is_new:
obj[XYZ_ID] = v
fields = feat.fields()
expression_field_names = [
f.name()
for i, f in enumerate(fields)
if fields.fieldOrigin(i) == fields.OriginExpression
]
# print({k.name(): fields.fieldOrigin(i) for i, k in enumerate(fields)})
props = _xyz_props(props, ignore_keys=expression_field_names)
livemap_props = _livemap_props(props, xyz_id=obj.get(XYZ_ID)) if is_livemap else dict()
props = _clean_props(props)
obj["properties"] = dict(props, **livemap_props)
geom = feat.geometry()
geom_ = json.loads(geom.asJson())
if geom_ is None:
# print_qgis(obj)
return obj
obj["geometry"] = make_valid_xyz_json_geom(geom_)
# bbox = geom.boundingBox() # print_qgis("bbox: %s"%bbox.toString()) if bbox.isEmpty():
# if "coordinates" in geom_: obj["bbox"] = list(geom_["coordinates"]) * 2 else: obj[
# "bbox"] = [bbox.xMinimum(), bbox.yMinimum(), 0.0, bbox.xMaximum(), bbox.yMaximum(),
# 0.0] obj["bbox"] = [bbox.xMinimum(), bbox.yMinimum(), bbox.xMaximum(), bbox.yMaximum()]
return obj
