本文整理汇总了Python中qgis.core.QgsGraduatedSymbolRenderer.deleteClass方法的典型用法代码示例。如果您正苦于以下问题：Python QgsGraduatedSymbolRenderer.deleteClass方法的具体用法？Python QgsGraduatedSymbolRenderer.deleteClass怎么用？Python QgsGraduatedSymbolRenderer.deleteClass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.QgsGraduatedSymbolRenderer的用法示例。
在下文中一共展示了QgsGraduatedSymbolRenderer.deleteClass方法的1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: testQgsGraduatedSymbolRenderer_2
# 需要导入模块: from qgis.core import QgsGraduatedSymbolRenderer [as 别名]
# 或者: from qgis.core.QgsGraduatedSymbolRenderer import deleteClass [as 别名]
def testQgsGraduatedSymbolRenderer_2(self):
"""Test QgsGraduatedSymbolRenderer: Adding /removing/editing classes """
# Create a renderer
renderer = QgsGraduatedSymbolRenderer()
symbol = createMarkerSymbol()
renderer.setSourceSymbol(symbol.clone())
symbol.setColor(QColor(255, 0, 0))
# Add class without start and end ranges
renderer.addClass(symbol.clone())
renderer.addClass(symbol.clone())
renderer.updateRangeLabel(1, 'Second range')
renderer.updateRangeLowerValue(1, 10.0)
renderer.updateRangeUpperValue(1, 25.0)
renderer.updateRangeRenderState(1, False)
symbol.setColor(QColor(0, 0, 255))
renderer.updateRangeSymbol(1, symbol.clone())
# Add as a rangeobject
symbol.setColor(QColor(0, 255, 0))
range = QgsRendererRange(20.0, 25.5, symbol.clone(), 'Third range', False)
renderer.addClassRange(range)
# Add class by lower and upper
renderer.addClassLowerUpper(25.5, 30.5)
# (Update label for sorting tests)
renderer.updateRangeLabel(3, 'Another range')
self.assertEqual(
dumpRangeLabels(renderer.ranges()),
'(0.0 - 0.0,Second range,Third range,Another range,)',
'Added ranges labels not correct')
self.assertEqual(
dumpRangeBreaks(renderer.ranges()),
'(0.0000-0.0000,10.0000-25.0000,20.0000-25.5000,25.5000-30.5000,)',
'Added ranges lower/upper values not correct')
# Check that clone function works
renderer2 = renderer.clone()
self.assertEqual(
dumpGraduatedRenderer(renderer),
dumpGraduatedRenderer(renderer2),
"clone function doesn't replicate renderer properly"
)
# Check save and reload from Dom works
doc = QDomDocument()
element = renderer.save(doc, QgsReadWriteContext())
renderer2 = QgsGraduatedSymbolRenderer.create(element, QgsReadWriteContext())
self.assertEqual(
dumpGraduatedRenderer(renderer),
dumpGraduatedRenderer(renderer2),
"Save/create from DOM doesn't replicate renderer properly"
)
# Check sorting
renderer.sortByLabel()
self.assertEqual(
dumpRangeList(renderer.ranges(), labelsOnly=True),
'(0.0 - 0.0,Another range,Second range,Third range,)',
'sortByLabel not correct')
renderer.sortByValue()
self.assertEqual(
dumpRangeBreaks(renderer.ranges()),
'(0.0000-0.0000,10.0000-25.0000,20.0000-25.5000,25.5000-30.5000,)',
'sortByValue not correct')
renderer.sortByValue(Qt.DescendingOrder)
self.assertEqual(
dumpRangeBreaks(renderer.ranges()),
'(25.5000-30.5000,20.0000-25.5000,10.0000-25.0000,0.0000-0.0000,)',
'sortByValue descending not correct')
# Check deleting
renderer.deleteClass(2)
self.assertEqual(
dumpRangeBreaks(renderer.ranges()),
'(25.5000-30.5000,20.0000-25.5000,0.0000-0.0000,)',
'deleteClass not correct')
renderer.deleteAllClasses()
self.assertEqual(len(renderer.ranges()), 0, "deleteAllClasses didn't delete all")