本文整理汇总了Python中qgis.core.QgsCategorizedSymbolRenderer.symbolForValue2方法的典型用法代码示例。如果您正苦于以下问题：Python QgsCategorizedSymbolRenderer.symbolForValue2方法的具体用法？Python QgsCategorizedSymbolRenderer.symbolForValue2怎么用？Python QgsCategorizedSymbolRenderer.symbolForValue2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.QgsCategorizedSymbolRenderer的用法示例。
在下文中一共展示了QgsCategorizedSymbolRenderer.symbolForValue2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: testSymbolForValue
# 需要导入模块: from qgis.core import QgsCategorizedSymbolRenderer [as 别名]
# 或者: from qgis.core.QgsCategorizedSymbolRenderer import symbolForValue2 [as 别名]
def testSymbolForValue(self):
"""Test symbolForValue"""
renderer = QgsCategorizedSymbolRenderer()
renderer.setClassAttribute('field')
symbol_a = createMarkerSymbol()
symbol_a.setColor(QColor(255, 0, 0))
renderer.addCategory(QgsRendererCategory('a', symbol_a, 'a'))
symbol_b = createMarkerSymbol()
symbol_b.setColor(QColor(0, 255, 0))
renderer.addCategory(QgsRendererCategory('b', symbol_b, 'b'))
symbol_c = createMarkerSymbol()
symbol_c.setColor(QColor(0, 0, 255))
renderer.addCategory(QgsRendererCategory('c', symbol_c, 'c', False))
# add default category
default_symbol = createMarkerSymbol()
default_symbol.setColor(QColor(255, 255, 255))
renderer.addCategory(QgsRendererCategory('', default_symbol, 'default'))
context = QgsRenderContext()
renderer.startRender(context, QgsFields())
symbol, ok = renderer.symbolForValue2('a')
self.assertEqual(symbol.color(), QColor(255, 0, 0))
self.assertTrue(ok)
symbol, ok = renderer.symbolForValue2('b')
self.assertEqual(symbol.color(), QColor(0, 255, 0))
self.assertTrue(ok)
# hidden category
symbol, ok = renderer.symbolForValue2('c')
self.assertIsNone(symbol)
self.assertTrue(ok)
# no matching category
symbol, ok = renderer.symbolForValue2('xxxx')
self.assertIsNone(symbol)
self.assertFalse(ok)
renderer.stopRender(context)示例2: testMatchToSymbols
# 需要导入模块: from qgis.core import QgsCategorizedSymbolRenderer [as 别名]
# 或者: from qgis.core.QgsCategorizedSymbolRenderer import symbolForValue2 [as 别名]
def testMatchToSymbols(self):
"""
Test QgsCategorizedSymbolRender.matchToSymbols
"""
renderer = QgsCategorizedSymbolRenderer()
renderer.setClassAttribute('x')
symbol_a = createMarkerSymbol()
symbol_a.setColor(QColor(255, 0, 0))
renderer.addCategory(QgsRendererCategory('a', symbol_a, 'a'))
symbol_b = createMarkerSymbol()
symbol_b.setColor(QColor(0, 255, 0))
renderer.addCategory(QgsRendererCategory('b', symbol_b, 'b'))
symbol_c = createMarkerSymbol()
symbol_c.setColor(QColor(0, 0, 255))
renderer.addCategory(QgsRendererCategory('c ', symbol_c, 'c'))
matched, unmatched_cats, unmatched_symbols = renderer.matchToSymbols(None, QgsSymbol.Marker)
self.assertEqual(matched, 0)
style = QgsStyle()
symbol_a = createMarkerSymbol()
symbol_a.setColor(QColor(255, 10, 10))
self.assertTrue(style.addSymbol('a', symbol_a))
symbol_B = createMarkerSymbol()
symbol_B.setColor(QColor(10, 255, 10))
self.assertTrue(style.addSymbol('B ', symbol_B))
symbol_b = createFillSymbol()
symbol_b.setColor(QColor(10, 255, 10))
self.assertTrue(style.addSymbol('b', symbol_b))
symbol_C = createLineSymbol()
symbol_C.setColor(QColor(10, 255, 10))
self.assertTrue(style.addSymbol('C', symbol_C))
symbol_C = createMarkerSymbol()
symbol_C.setColor(QColor(10, 255, 10))
self.assertTrue(style.addSymbol(' ----c/- ', symbol_C))
# non-matching symbol type
matched, unmatched_cats, unmatched_symbols = renderer.matchToSymbols(style, QgsSymbol.Line)
self.assertEqual(matched, 0)
self.assertEqual(unmatched_cats, ['a', 'b', 'c '])
self.assertEqual(unmatched_symbols, [' ----c/- ', 'B ', 'C', 'a', 'b'])
# exact match
matched, unmatched_cats, unmatched_symbols = renderer.matchToSymbols(style, QgsSymbol.Marker)
self.assertEqual(matched, 1)
self.assertEqual(unmatched_cats, ['b', 'c '])
self.assertEqual(unmatched_symbols, [' ----c/- ', 'B ', 'C', 'b'])
# make sure symbol was applied
context = QgsRenderContext()
renderer.startRender(context, QgsFields())
symbol, ok = renderer.symbolForValue2('a')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#ff0a0a')
renderer.stopRender(context)
# case insensitive match
matched, unmatched_cats, unmatched_symbols = renderer.matchToSymbols(style, QgsSymbol.Marker, False)
self.assertEqual(matched, 2)
self.assertEqual(unmatched_cats, ['c '])
self.assertEqual(unmatched_symbols, [' ----c/- ', 'C', 'b'])
# make sure symbols were applied
context = QgsRenderContext()
renderer.startRender(context, QgsFields())
symbol, ok = renderer.symbolForValue2('a')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#ff0a0a')
symbol, ok = renderer.symbolForValue2('b')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#0aff0a')
renderer.stopRender(context)
# case insensitive match
matched, unmatched_cats, unmatched_symbols = renderer.matchToSymbols(style, QgsSymbol.Marker, False)
self.assertEqual(matched, 2)
self.assertEqual(unmatched_cats, ['c '])
self.assertEqual(unmatched_symbols, [' ----c/- ', 'C', 'b'])
# make sure symbols were applied
context = QgsRenderContext()
renderer.startRender(context, QgsFields())
symbol, ok = renderer.symbolForValue2('a')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#ff0a0a')
symbol, ok = renderer.symbolForValue2('b')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#0aff0a')
renderer.stopRender(context)
# tolerant match
matched, unmatched_cats, unmatched_symbols = renderer.matchToSymbols(style, QgsSymbol.Marker, True, True)
self.assertEqual(matched, 2)
self.assertEqual(unmatched_cats, ['b'])
self.assertEqual(unmatched_symbols, ['B ', 'C', 'b'])
# make sure symbols were applied
context = QgsRenderContext()
renderer.startRender(context, QgsFields())
#.........这里部分代码省略.........