本文整理汇总了Python中qgis.gui.QgsProjectionSelectionTreeWidget.hasValidSelection方法的典型用法代码示例。如果您正苦于以下问题：Python QgsProjectionSelectionTreeWidget.hasValidSelection方法的具体用法？Python QgsProjectionSelectionTreeWidget.hasValidSelection怎么用？Python QgsProjectionSelectionTreeWidget.hasValidSelection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.gui.QgsProjectionSelectionTreeWidget的用法示例。
在下文中一共展示了QgsProjectionSelectionTreeWidget.hasValidSelection方法的2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: testTreeWidgetGettersSetters
# 需要导入模块: from qgis.gui import QgsProjectionSelectionTreeWidget [as 别名]
# 或者: from qgis.gui.QgsProjectionSelectionTreeWidget import hasValidSelection [as 别名]
def testTreeWidgetGettersSetters(self):
""" basic tests for QgsProjectionSelectionTreeWidget """
w = QgsProjectionSelectionTreeWidget()
w.show()
self.assertFalse(w.hasValidSelection())
w.setCrs(QgsCoordinateReferenceSystem('EPSG:3111'))
self.assertEqual(w.crs().authid(), 'EPSG:3111')
self.assertTrue(w.hasValidSelection())示例2: testTreeWidgetNotSetOption
# 需要导入模块: from qgis.gui import QgsProjectionSelectionTreeWidget [as 别名]
# 或者: from qgis.gui.QgsProjectionSelectionTreeWidget import hasValidSelection [as 别名]
def testTreeWidgetNotSetOption(self):
""" test allowing no projection option for QgsProjectionSelectionTreeWidget """
w = QgsProjectionSelectionTreeWidget()
w.show()
w.setShowNoProjection(True)
self.assertTrue(w.showNoProjection())
w.setShowNoProjection(False)
self.assertFalse(w.showNoProjection())
w.setShowNoProjection(True)
# no projection should be a valid selection
w.setCrs(QgsCoordinateReferenceSystem())
self.assertTrue(w.hasValidSelection())
self.assertFalse(w.crs().isValid())