本文整理汇总了Python中qgis.core.QgsProject.layerStore方法的典型用法代码示例。如果您正苦于以下问题：Python QgsProject.layerStore方法的具体用法？Python QgsProject.layerStore怎么用？Python QgsProject.layerStore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.QgsProject的用法示例。
在下文中一共展示了QgsProject.layerStore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: testLayerDataSourceReset
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import layerStore [as 别名]
def testLayerDataSourceReset(self):
"""When adding a layer with the same id to the store make sure
the data source is also updated in case the layer validity has
changed from False to True"""
p = QgsProject()
store = p.layerStore()
vl1 = createLayer('valid')
vl2 = QgsVectorLayer('/not_a_valid_path.shp', 'invalid', 'ogr')
self.assertTrue(vl1.isValid())
self.assertFalse(vl2.isValid())
store.addMapLayers([vl1, vl2])
self.assertEqual(store.validCount(), 1)
self.assertEqual(len(store.mapLayers()), 2)
# Re-add the bad layer
store.addMapLayers([vl2])
self.assertEqual(store.validCount(), 1)
self.assertEqual(len(store.mapLayers()), 2)
doc = QDomDocument()
doc.setContent('<maplayer><provider encoding="UTF-8">ogr</provider><layername>fixed</layername><id>%s</id></maplayer>' % vl2.id())
layer_node = QDomNode(doc.firstChild())
self.assertTrue(vl2.writeXml(layer_node, doc, QgsReadWriteContext()))
datasource_node = doc.createElement("datasource")
datasource_node.appendChild(doc.createTextNode(os.path.join(TEST_DATA_DIR, 'points.shp')))
layer_node.appendChild(datasource_node)
p.readLayer(layer_node)
self.assertEqual(store.validCount(), 2)
self.assertEqual(len(store.mapLayers()), 2)
self.assertEqual(store.mapLayers()[vl2.id()].name(), 'fixed')示例2: testRelativePaths
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import layerStore [as 别名]
def testRelativePaths(self):
"""
Test whether paths to layer sources are stored as relative to the project path
"""
tmpDir = QTemporaryDir()
tmpFile = "{}/project.qgs".format(tmpDir.path())
copyfile(os.path.join(TEST_DATA_DIR, "points.shp"), os.path.join(tmpDir.path(), "points.shp"))
copyfile(os.path.join(TEST_DATA_DIR, "points.dbf"), os.path.join(tmpDir.path(), "points.dbf"))
copyfile(os.path.join(TEST_DATA_DIR, "points.shx"), os.path.join(tmpDir.path(), "points.shx"))
copyfile(os.path.join(TEST_DATA_DIR, "lines.shp"), os.path.join(tmpDir.path(), "lines.shp"))
copyfile(os.path.join(TEST_DATA_DIR, "lines.dbf"), os.path.join(tmpDir.path(), "lines.dbf"))
copyfile(os.path.join(TEST_DATA_DIR, "lines.shx"), os.path.join(tmpDir.path(), "lines.shx"))
copyfile(os.path.join(TEST_DATA_DIR, "landsat_4326.tif"), os.path.join(tmpDir.path(), "landsat_4326.tif"))
project = QgsProject()
l0 = QgsVectorLayer(os.path.join(tmpDir.path(), "points.shp"), "points", "ogr")
l1 = QgsVectorLayer(os.path.join(tmpDir.path(), "lines.shp"), "lines", "ogr")
l2 = QgsRasterLayer(os.path.join(tmpDir.path(), "landsat_4326.tif"), "landsat", "gdal")
self.assertTrue(l0.isValid())
self.assertTrue(l1.isValid())
self.assertTrue(l2.isValid())
self.assertTrue(project.addMapLayers([l0, l1, l2]))
self.assertTrue(project.write(tmpFile))
del project
with open(tmpFile, 'r') as f:
content = ''.join(f.readlines())
self.assertTrue('source="./lines.shp"' in content)
self.assertTrue('source="./points.shp"' in content)
self.assertTrue('source="./landsat_4326.tif"' in content)
# Re-read the project and store absolute
project = QgsProject()
self.assertTrue(project.read(tmpFile))
store = project.layerStore()
self.assertEquals(set([l.name() for l in store.mapLayers().values()]), set(['lines', 'landsat', 'points']))
project.writeEntryBool('Paths', '/Absolute', True)
tmpFile2 = "{}/project2.qgs".format(tmpDir.path())
self.assertTrue(project.write(tmpFile2))
with open(tmpFile2, 'r') as f:
content = ''.join(f.readlines())
self.assertTrue('source="{}/lines.shp"'.format(tmpDir.path()) in content)
self.assertTrue('source="{}/points.shp"'.format(tmpDir.path()) in content)
self.assertTrue('source="{}/landsat_4326.tif"'.format(tmpDir.path()) in content)
del project