本文整理汇总了Python中qgis.core.QgsRuleBasedRenderer.refineRuleRanges方法的典型用法代码示例。如果您正苦于以下问题：Python QgsRuleBasedRenderer.refineRuleRanges方法的具体用法？Python QgsRuleBasedRenderer.refineRuleRanges怎么用？Python QgsRuleBasedRenderer.refineRuleRanges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.QgsRuleBasedRenderer的用法示例。
在下文中一共展示了QgsRuleBasedRenderer.refineRuleRanges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: testRefineWithRanges
# 需要导入模块: from qgis.core import QgsRuleBasedRenderer [as 别名]
# 或者: from qgis.core.QgsRuleBasedRenderer import refineRuleRanges [as 别名]
def testRefineWithRanges(self):
# Test refining rule with ranges (refs #10815)
# First, try with a field based category (id)
ranges = []
ranges.append(QgsRendererRange(0, 1, QgsMarkerSymbol(), "0-1"))
ranges.append(QgsRendererRange(1, 2, QgsMarkerSymbol(), "1-2"))
g = QgsGraduatedSymbolRenderer("id", ranges)
QgsRuleBasedRenderer.refineRuleRanges(self.r2, g)
assert self.r2.children()[0].filterExpression() == '"id" >= 0.0000 AND "id" <= 1.0000'
assert self.r2.children()[1].filterExpression() == '"id" > 1.0000 AND "id" <= 2.0000'
# Next try with an expression based range
ranges = []
ranges.append(QgsRendererRange(0, 1, QgsMarkerSymbol(), "0-1"))
ranges.append(QgsRendererRange(1, 2, QgsMarkerSymbol(), "1-2"))
g = QgsGraduatedSymbolRenderer("id / 2", ranges)
QgsRuleBasedRenderer.refineRuleRanges(self.r1, g)
assert self.r1.children()[0].filterExpression() == '(id / 2) >= 0.0000 AND (id / 2) <= 1.0000'
assert self.r1.children()[1].filterExpression() == '(id / 2) > 1.0000 AND (id / 2) <= 2.0000'
# Last try with an expression which is just a quoted field name
ranges = []
ranges.append(QgsRendererRange(0, 1, QgsMarkerSymbol(), "0-1"))
ranges.append(QgsRendererRange(1, 2, QgsMarkerSymbol(), "1-2"))
g = QgsGraduatedSymbolRenderer('"id"', ranges)
QgsRuleBasedRenderer.refineRuleRanges(self.r3, g)
assert self.r3.children()[0].filterExpression() == '"id" >= 0.0000 AND "id" <= 1.0000'
assert self.r3.children()[1].filterExpression() == '"id" > 1.0000 AND "id" <= 2.0000'