本文整理汇总了Python中qgis.core.QgsPrintLayout.referenceMap方法的典型用法代码示例。如果您正苦于以下问题：Python QgsPrintLayout.referenceMap方法的具体用法？Python QgsPrintLayout.referenceMap怎么用？Python QgsPrintLayout.referenceMap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.QgsPrintLayout的用法示例。
在下文中一共展示了QgsPrintLayout.referenceMap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 QgsPrintLayout [as 别名]
# 或者: from qgis.core.QgsPrintLayout import referenceMap [as 别名]
def testReadWriteXml(self):
p = QgsProject()
l = QgsPrintLayout(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)
l.setReferenceMap(item2)
doc = QDomDocument("testdoc")
elem = l.writeXml(doc, QgsReadWriteContext())
l2 = QgsPrintLayout(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')
self.assertEqual(l2.referenceMap().id(), 'zzyyzz')示例2: export_view
# 需要导入模块: from qgis.core import QgsPrintLayout [as 别名]
# 或者: from qgis.core.QgsPrintLayout import referenceMap [as 别名]
def export_view(self):
'''
Export current view to PDF
'''
# Load template from file
s = QSettings()
f = s.value("cadastre/composerTemplateFile", '', type=str)
if not os.path.exists(f):
f = os.path.join(str(Path(__file__).resolve().parent), 'composers', 'paysage_a4.qpt')
s.setValue("cadastre/composerTemplateFile", f)
QApplication.setOverrideCursor(Qt.WaitCursor)
template_content = None
with open(f, 'rt', encoding="utf-8") as ff:
template_content = ff.read()
if not template_content:
return
d = QDomDocument()
d.setContent(template_content)
c = QgsPrintLayout(QgsProject.instance())
c.loadFromTemplate(d, QgsReadWriteContext() )
# Set scale and extent
cm=c.referenceMap()
canvas = self.iface.mapCanvas()
extent = canvas.extent()
scale = canvas.scale()
if extent:
cm.zoomToExtent(extent)
if scale:
cm.setScale(scale)
# Export
tempDir = s.value("cadastre/tempDir", '%s' % tempfile.gettempdir(), type=str)
self.targetDir = tempfile.mkdtemp('', 'cad_export_', tempDir)
temp = int(time()*100)
temppath = os.path.join(tempDir, 'export_cadastre_%s.pdf' % temp)
exporter = QgsLayoutExporter(c)
exportersettings = QgsLayoutExporter.PdfExportSettings()
exportersettings.dpi = 300
exportersettings.forceVectorOutput = True
exportersettings.rasterizeWholeImage = False #rasterizeWholeImage = false
exporter.exportToPdf(temppath, exportersettings )
QApplication.restoreOverrideCursor()
if os.path.exists(temppath):
cadastre_common.openFile(temppath)