本文整理汇总了Python中qgis.core.QgsLayout.readXml方法的典型用法代码示例。如果您正苦于以下问题:Python QgsLayout.readXml方法的具体用法?Python QgsLayout.readXml怎么用?Python QgsLayout.readXml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.readXml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: testReadWriteXml
# 需要导入模块: from qgis.core import QgsLayout [as 别名]
# 或者: from qgis.core.QgsLayout import readXml [as 别名]
def testReadWriteXml(self):
p = QgsProject()
l = QgsLayout(p)
l.setName('my layout')
l.setUnits(QgsUnitTypes.LayoutInches)
collection = l.pageCollection()
# add a page
page = QgsLayoutItemPage(l)
page.setPageSize('A6')
collection.addPage(page)
grid = l.gridSettings()
grid.setResolution(QgsLayoutMeasurement(5, QgsUnitTypes.LayoutPoints))
g1 = QgsLayoutGuide(Qt.Horizontal, QgsLayoutMeasurement(5, QgsUnitTypes.LayoutCentimeters),
l.pageCollection().page(0))
l.guides().addGuide(g1)
snapper = l.snapper()
snapper.setSnapTolerance(7)
# add some items
item1 = QgsLayoutItemMap(l)
item1.setId('xxyyxx')
l.addItem(item1)
item2 = QgsLayoutItemMap(l)
item2.setId('zzyyzz')
l.addItem(item2)
doc = QDomDocument("testdoc")
elem = l.writeXml(doc, QgsReadWriteContext())
l2 = QgsLayout(p)
self.assertTrue(l2.readXml(elem, doc, QgsReadWriteContext()))
self.assertEqual(l2.name(), 'my layout')
self.assertEqual(l2.units(), QgsUnitTypes.LayoutInches)
collection2 = l2.pageCollection()
self.assertEqual(collection2.pageCount(), 1)
self.assertAlmostEqual(collection2.page(0).pageSize().width(), 105, 4)
self.assertEqual(collection2.page(0).pageSize().height(), 148)
self.assertEqual(l2.gridSettings().resolution().length(), 5.0)
self.assertEqual(l2.gridSettings().resolution().units(), QgsUnitTypes.LayoutPoints)
self.assertEqual(l2.guides().guidesOnPage(0)[0].orientation(), Qt.Horizontal)
self.assertEqual(l2.guides().guidesOnPage(0)[0].position().length(), 5.0)
self.assertEqual(l2.guides().guidesOnPage(0)[0].position().units(), QgsUnitTypes.LayoutCentimeters)
self.assertEqual(l2.snapper().snapTolerance(), 7)
# check restored items
new_item1 = l2.itemByUuid(item1.uuid())
self.assertTrue(new_item1)
self.assertEqual(new_item1.id(), 'xxyyxx')
new_item2 = l2.itemByUuid(item2.uuid())
self.assertTrue(new_item2)
self.assertEqual(new_item2.id(), 'zzyyzz')
示例2: testBlockingItems
# 需要导入模块: from qgis.core import QgsLayout [as 别名]
# 或者: from qgis.core.QgsLayout import readXml [as 别名]
def testBlockingItems(self):
"""
Test rendering map item with blocking items
"""
format = QgsTextFormat()
format.setFont(QgsFontUtils.getStandardTestFont("Bold"))
format.setSize(20)
format.setNamedStyle("Bold")
format.setColor(QColor(0, 0, 0))
settings = QgsPalLayerSettings()
settings.setFormat(format)
settings.fieldName = "'X'"
settings.isExpression = True
settings.placement = QgsPalLayerSettings.OverPoint
vl = QgsVectorLayer("Point?crs=epsg:4326&field=id:integer", "vl", "memory")
vl.setRenderer(QgsNullSymbolRenderer())
f = QgsFeature(vl.fields(), 1)
for x in range(15):
for y in range(15):
f.setGeometry(QgsPoint(x, y))
vl.dataProvider().addFeature(f)
vl.setLabeling(QgsVectorLayerSimpleLabeling(settings))
vl.setLabelsEnabled(True)
p = QgsProject()
engine_settings = QgsLabelingEngineSettings()
engine_settings.setFlag(QgsLabelingEngineSettings.DrawLabelRectOnly, True)
p.setLabelingEngineSettings(engine_settings)
p.addMapLayer(vl)
layout = QgsLayout(p)
layout.initializeDefaults()
p.setCrs(QgsCoordinateReferenceSystem('EPSG:4326'))
map = QgsLayoutItemMap(layout)
map.attemptSetSceneRect(QRectF(10, 10, 180, 180))
map.setFrameEnabled(True)
map.zoomToExtent(vl.extent())
map.setLayers([vl])
map.setId('map')
layout.addLayoutItem(map)
map2 = QgsLayoutItemMap(layout)
map2.attemptSetSceneRect(QRectF(0, 5, 50, 80))
map2.setFrameEnabled(True)
map2.setBackgroundEnabled(False)
map2.setId('map2')
layout.addLayoutItem(map2)
map3 = QgsLayoutItemMap(layout)
map3.attemptSetSceneRect(QRectF(150, 160, 50, 50))
map3.setFrameEnabled(True)
map3.setBackgroundEnabled(False)
map3.setId('map3')
layout.addLayoutItem(map3)
map.addLabelBlockingItem(map2)
map.addLabelBlockingItem(map3)
map.setMapFlags(QgsLayoutItemMap.MapItemFlags())
checker = QgsLayoutChecker('composermap_label_blockers', layout)
checker.setControlPathPrefix("composer_map")
result, message = checker.testLayout()
self.report += checker.report()
self.assertTrue(result, message)
doc = QDomDocument("testdoc")
elem = layout.writeXml(doc, QgsReadWriteContext())
l2 = QgsLayout(p)
self.assertTrue(l2.readXml(elem, doc, QgsReadWriteContext()))
map_restore = [i for i in l2.items() if isinstance(i, QgsLayoutItemMap) and i.id() == 'map'][0]
map2_restore = [i for i in l2.items() if isinstance(i, QgsLayoutItemMap) and i.id() == 'map2'][0]
map3_restore = [i for i in l2.items() if isinstance(i, QgsLayoutItemMap) and i.id() == 'map3'][0]
self.assertTrue(map_restore.isLabelBlockingItem(map2_restore))
self.assertTrue(map_restore.isLabelBlockingItem(map3_restore))