本文整理汇总了Python中qgis.core.QgsLayout.addItemsFromXml方法的典型用法代码示例。如果您正苦于以下问题:Python QgsLayout.addItemsFromXml方法的具体用法?Python QgsLayout.addItemsFromXml怎么用?Python QgsLayout.addItemsFromXml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.QgsLayout
的用法示例。
在下文中一共展示了QgsLayout.addItemsFromXml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: TestQgsComposerMap
# 需要导入模块: from qgis.core import QgsLayout [as 别名]
# 或者: from qgis.core.QgsLayout import addItemsFromXml [as 别名]
#.........这里部分代码省略.........
overviewMap.setLayers([self.raster_layer])
self.layout.addLayoutItem(overviewMap)
# zoom in
myRectangle = QgsRectangle(192, -288, 320, -224)
self.map.setExtent(myRectangle)
myRectangle2 = QgsRectangle(0, -256, 256, 0)
overviewMap.setExtent(myRectangle2)
overviewMap.overview().setFrameMap(self.map)
overviewMap.overview().setInverted(False)
overviewMap.overview().setCentered(True)
checker = QgsLayoutChecker('composermap_overview_center', self.layout)
checker.setControlPathPrefix("composer_mapoverview")
myTestResult, myMessage = checker.testLayout()
self.layout.removeLayoutItem(overviewMap)
assert myTestResult, myMessage
def testMapCrs(self):
# create composition with composer map
map_settings = QgsMapSettings()
map_settings.setLayers([self.vector_layer])
layout = QgsLayout(QgsProject.instance())
layout.initializeDefaults()
# check that new maps inherit project CRS
QgsProject.instance().setCrs(QgsCoordinateReferenceSystem('EPSG:4326'))
map = QgsLayoutItemMap(layout)
map.attemptSetSceneRect(QRectF(20, 20, 200, 100))
map.setFrameEnabled(True)
rectangle = QgsRectangle(-13838977, 2369660, -8672298, 6250909)
map.setExtent(rectangle)
map.setLayers([self.vector_layer])
layout.addLayoutItem(map)
self.assertEqual(map.crs().authid(), 'EPSG:4326')
self.assertFalse(map.presetCrs().isValid())
# overwrite CRS
map.setCrs(QgsCoordinateReferenceSystem('EPSG:3857'))
self.assertEqual(map.crs().authid(), 'EPSG:3857')
self.assertEqual(map.presetCrs().authid(), 'EPSG:3857')
checker = QgsLayoutChecker('composermap_crs3857', layout)
checker.setControlPathPrefix("composer_map")
result, message = checker.testLayout()
self.assertTrue(result, message)
# overwrite CRS
map.setCrs(QgsCoordinateReferenceSystem('EPSG:4326'))
self.assertEqual(map.presetCrs().authid(), 'EPSG:4326')
self.assertEqual(map.crs().authid(), 'EPSG:4326')
rectangle = QgsRectangle(-124, 17, -78, 52)
map.zoomToExtent(rectangle)
checker = QgsLayoutChecker('composermap_crs4326', layout)
checker.setControlPathPrefix("composer_map")
result, message = checker.testLayout()
self.assertTrue(result, message)
# change back to project CRS
map.setCrs(QgsCoordinateReferenceSystem())
self.assertEqual(map.crs().authid(), 'EPSG:4326')
self.assertFalse(map.presetCrs().isValid())
def testuniqueId(self):
return
doc = QDomDocument()
documentElement = doc.createElement('ComposerItemClipboard')
self.layout.writeXml(documentElement, doc)
self.layout.addItemsFromXml(documentElement, doc)
# test if both composer maps have different ids
newMap = QgsComposerMap(self.layout, 0, 0, 10, 10)
mapList = self.layout.composerMapItems()
for mapIt in mapList:
if mapIt != self.map:
newMap = mapIt
break
oldId = self.map.id()
newId = newMap.id()
self.layout.removeComposerItem(newMap)
myMessage = 'old: %s new: %s' % (oldId, newId)
assert oldId != newId, myMessage
def testWorldFileGeneration(self):
return
myRectangle = QgsRectangle(781662.375, 3339523.125, 793062.375, 3345223.125)
self.map.setNewExtent(myRectangle)
self.map.setMapRotation(30.0)
self.layout.setGenerateWorldFile(True)
self.layout.setReferenceMap(self.map)
p = self.layout.computeWorldFileParameters()
pexpected = (4.180480199790922, 2.4133064516129026, 779443.7612381146,
2.4136013686911886, -4.179969388427311, 3342408.5663611)
ptolerance = (0.001, 0.001, 1, 0.001, 0.001, 1e+03)
for i in range(0, 6):
assert abs(p[i] - pexpected[i]) < ptolerance[i]
示例2: testAddItemsFromXml
# 需要导入模块: from qgis.core import QgsLayout [as 别名]
# 或者: from qgis.core.QgsLayout import addItemsFromXml [as 别名]
def testAddItemsFromXml(self):
p = QgsProject()
l = QgsLayout(p)
# add some items
item1 = QgsLayoutItemLabel(l)
item1.setId('xxyyxx')
item1.attemptMove(QgsLayoutPoint(4, 8, QgsUnitTypes.LayoutMillimeters))
item1.attemptResize(QgsLayoutSize(18, 12, QgsUnitTypes.LayoutMillimeters))
l.addItem(item1)
item2 = QgsLayoutItemLabel(l)
item2.setId('zzyyzz')
item2.attemptMove(QgsLayoutPoint(1.4, 1.8, QgsUnitTypes.LayoutCentimeters))
item2.attemptResize(QgsLayoutSize(2.8, 2.2, QgsUnitTypes.LayoutCentimeters))
l.addItem(item2)
doc = QDomDocument("testdoc")
# store in xml
elem = l.writeXml(doc, QgsReadWriteContext())
l2 = QgsLayout(p)
new_items = l2.addItemsFromXml(elem, doc, QgsReadWriteContext())
self.assertEqual(len(new_items), 2)
items = l2.items()
self.assertTrue([i for i in items if i.id() == 'xxyyxx'])
self.assertTrue([i for i in items if i.id() == 'zzyyzz'])
self.assertTrue(new_items[0] in l2.items())
self.assertTrue(new_items[1] in l2.items())
new_item1 = [i for i in items if i.id() == 'xxyyxx'][0]
new_item2 = [i for i in items if i.id() == 'zzyyzz'][0]
self.assertEqual(new_item1.positionWithUnits(), QgsLayoutPoint(4, 8, QgsUnitTypes.LayoutMillimeters))
self.assertEqual(new_item1.sizeWithUnits(), QgsLayoutSize(18, 12, QgsUnitTypes.LayoutMillimeters))
self.assertEqual(new_item2.positionWithUnits(), QgsLayoutPoint(1.4, 1.8, QgsUnitTypes.LayoutCentimeters))
self.assertEqual(new_item2.sizeWithUnits(), QgsLayoutSize(2.8, 2.2, QgsUnitTypes.LayoutCentimeters))
# test with a group
group = QgsLayoutItemGroup(l)
group.addItem(item1)
group.addItem(item2)
l.addLayoutItem(group)
elem = l.writeXml(doc, QgsReadWriteContext())
l3 = QgsLayout(p)
new_items = l3.addItemsFromXml(elem, doc, QgsReadWriteContext())
self.assertEqual(len(new_items), 3)
items = l3.items()
self.assertTrue([i for i in items if i.id() == 'xxyyxx'])
self.assertTrue([i for i in items if i.id() == 'zzyyzz'])
self.assertTrue(new_items[0] in l3.items())
self.assertTrue(new_items[1] in l3.items())
self.assertTrue(new_items[2] in l3.items())
# f*** you sip, I'll just manually cast
new_group = sip.cast(l3.itemByUuid(group.uuid()), QgsLayoutItemGroup)
self.assertIsNotNone(new_group)
other_items = [i for i in new_items if i.type() != new_group.type()]
self.assertCountEqual(new_group.items(), other_items)
# test restoring at set position
l3 = QgsLayout(p)
new_items = l3.addItemsFromXml(elem, doc, QgsReadWriteContext(), QPointF(10, 30))
self.assertEqual(len(new_items), 3)
items = l3.items()
new_item1 = [i for i in items if i.id() == 'xxyyxx'][0]
new_item2 = [i for i in items if i.id() == 'zzyyzz'][0]
self.assertEqual(new_item1.positionWithUnits(), QgsLayoutPoint(10, 30, QgsUnitTypes.LayoutMillimeters))
self.assertEqual(new_item1.sizeWithUnits(), QgsLayoutSize(18, 12, QgsUnitTypes.LayoutMillimeters))
self.assertEqual(new_item2.positionWithUnits(), QgsLayoutPoint(2.0, 4.0, QgsUnitTypes.LayoutCentimeters))
self.assertEqual(new_item2.sizeWithUnits(), QgsLayoutSize(2.8, 2.2, QgsUnitTypes.LayoutCentimeters))
# paste in place
l4 = QgsLayout(p)
page = QgsLayoutItemPage(l)
page.setPageSize('A3')
l4.pageCollection().addPage(page)
page = QgsLayoutItemPage(l)
page.setPageSize('A6')
l4.pageCollection().addPage(page)
new_items = l4.addItemsFromXml(elem, doc, QgsReadWriteContext(), QPointF(10, 30), True)
self.assertEqual(len(new_items), 3)
new_item1 = [i for i in new_items if i.id() == 'xxyyxx'][0]
new_item2 = [i for i in new_items if i.id() == 'zzyyzz'][0]
self.assertEqual(new_item1.pagePositionWithUnits(), QgsLayoutPoint(4, 8, QgsUnitTypes.LayoutMillimeters))
self.assertEqual(new_item1.sizeWithUnits(), QgsLayoutSize(18, 12, QgsUnitTypes.LayoutMillimeters))
self.assertEqual(new_item1.page(), 0)
self.assertEqual(new_item2.pagePositionWithUnits(), QgsLayoutPoint(1.4, 1.8, QgsUnitTypes.LayoutCentimeters))
self.assertEqual(new_item2.sizeWithUnits(), QgsLayoutSize(2.8, 2.2, QgsUnitTypes.LayoutCentimeters))
self.assertEqual(new_item2.page(), 0)
# paste in place, page 2
new_items = l4.addItemsFromXml(elem, doc, QgsReadWriteContext(), QPointF(10, 550), True)
self.assertEqual(len(new_items), 3)
new_item1 = [i for i in new_items if i.id() == 'xxyyxx'][0]
new_item2 = [i for i in new_items if i.id() == 'zzyyzz'][0]
self.assertEqual(new_item1.pagePositionWithUnits(), QgsLayoutPoint(4, 8, QgsUnitTypes.LayoutMillimeters))
self.assertEqual(new_item1.page(), 1)
self.assertEqual(new_item1.sizeWithUnits(), QgsLayoutSize(18, 12, QgsUnitTypes.LayoutMillimeters))
self.assertEqual(new_item2.pagePositionWithUnits(), QgsLayoutPoint(1.4, 1.8, QgsUnitTypes.LayoutCentimeters))
self.assertEqual(new_item2.page(), 1)
#.........这里部分代码省略.........