本文整理汇总了Python中qgis.core.QgsJSONUtils.exportAttributes方法的典型用法代码示例。如果您正苦于以下问题：Python QgsJSONUtils.exportAttributes方法的具体用法？Python QgsJSONUtils.exportAttributes怎么用？Python QgsJSONUtils.exportAttributes使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类qgis.core.QgsJSONUtils的用法示例。
在下文中一共展示了QgsJSONUtils.exportAttributes方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: QgsField
# 需要导入模块: from qgis.core import QgsJSONUtils [as 别名]
# 或者: from qgis.core.QgsJSONUtils import exportAttributes [as 别名]
fields_list = [
QgsField("name", QVariant.String),
QgsField("age", QVariant.Int),
QgsField("size", QVariant.Double)
]
for f in fields_list:
fields.append(f)
feature = QgsFeature(fields)
feature.setGeometry(QgsGeometry.fromPoint(QgsPoint(60, 5)))
feature.setAttributes(["George", 34, 1.69])
# Exports all attributes from a QgsFeature as a JSON map type.
with codecs.open('feature.json', 'wb', encoding='utf-8') as f:
json_text = QgsJSONUtils.exportAttributes(feature)
f.write(json_text)
# Attempts to retrieve the fields from a GeoJSON string representing a
# collection of features.
fields = QgsJSONUtils.stringToFields(
geojson_contributors_string,
QTextCodec.codecForName('UTF-8')
)
for f in fields:
print(f.name(), f.type())
# Attempts to parse a GeoJSON string to a collection of features.
features = QgsJSONUtils.stringToFeatureList(
geojson_contributors_string,