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Python QgsCategorizedSymbolRenderer.stopRender方法代码示例

本文整理汇总了Python中qgis.core.QgsCategorizedSymbolRenderer.stopRender方法的典型用法代码示例。如果您正苦于以下问题：Python QgsCategorizedSymbolRenderer.stopRender方法的具体用法？Python QgsCategorizedSymbolRenderer.stopRender怎么用？Python QgsCategorizedSymbolRenderer.stopRender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.stopRender方法的4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: testLegendKeysWhileCounting

# 需要导入模块: from qgis.core import QgsCategorizedSymbolRenderer [as 别名]
# 或者: from qgis.core.QgsCategorizedSymbolRenderer import stopRender [as 别名]
    def testLegendKeysWhileCounting(self):
        # test determining legend keys for features, while counting features
        fields = QgsFields()
        fields.append(QgsField('x'))

        # setup renderer
        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', False))
        symbol_d = createMarkerSymbol()
        symbol_d.setColor(QColor(255, 0, 255))
        renderer.addCategory(QgsRendererCategory(['d', 'e'], symbol_d, 'de'))
        # add default category
        default_symbol = createMarkerSymbol()
        default_symbol.setColor(QColor(255, 255, 255))
        renderer.addCategory(QgsRendererCategory('', default_symbol, 'default'))

        context = QgsRenderContext()
        context.setRendererScale(0) # simulate counting
        renderer.startRender(context, fields)

        f = QgsFeature(fields)
        f.setAttributes(['a'])

        keys = renderer.legendKeysForFeature(f, context)
        self.assertEqual(keys, {'0'})

        f.setAttributes(['b'])
        keys = renderer.legendKeysForFeature(f, context)
        self.assertEqual(keys, {'1'})

        # hidden category, should still return keys
        f.setAttributes(['c'])
        keys = renderer.legendKeysForFeature(f, context)
        self.assertEqual(keys, {'2'})

        # list
        f.setAttributes(['d'])
        keys = renderer.legendKeysForFeature(f, context)
        self.assertEqual(keys, {'3'})
        f.setAttributes(['e'])
        keys = renderer.legendKeysForFeature(f, context)
        self.assertEqual(keys, {'3'})

        # no matching category
        f.setAttributes(['xxx'])
        keys = renderer.legendKeysForFeature(f, context)
        self.assertFalse(keys)

        renderer.stopRender(context)
开发者ID:m-kuhn，项目名称:QGIS，代码行数:61，代码来源:test_qgscategorizedsymbolrenderer.py

示例2: testOriginalSymbolForFeature

# 需要导入模块: from qgis.core import QgsCategorizedSymbolRenderer [as 别名]
# 或者: from qgis.core.QgsCategorizedSymbolRenderer import stopRender [as 别名]
    def testOriginalSymbolForFeature(self):
        # test renderer with features
        fields = QgsFields()
        fields.append(QgsField('x'))

        # setup renderer
        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', False))
        symbol_d = createMarkerSymbol()
        symbol_d.setColor(QColor(255, 0, 255))
        renderer.addCategory(QgsRendererCategory(['d', 'e'], symbol_d, 'de'))
        # add default category
        default_symbol = createMarkerSymbol()
        default_symbol.setColor(QColor(255, 255, 255))
        renderer.addCategory(QgsRendererCategory('', default_symbol, 'default'))

        context = QgsRenderContext()
        renderer.startRender(context, fields)

        f = QgsFeature(fields)
        f.setAttributes(['a'])

        symbol = renderer.originalSymbolForFeature(f, context)
        self.assertEqual(symbol.color(), QColor(255, 0, 0))

        f.setAttributes(['b'])
        symbol = renderer.originalSymbolForFeature(f, context)
        self.assertEqual(symbol.color(), QColor(0, 255, 0))

        # list
        f.setAttributes(['d'])
        symbol = renderer.originalSymbolForFeature(f, context)
        self.assertEqual(symbol.color(), QColor(255, 0, 255))
        f.setAttributes(['e'])
        symbol = renderer.originalSymbolForFeature(f, context)
        self.assertEqual(symbol.color(), QColor(255, 0, 255))

        # hidden category
        f.setAttributes(['c'])
        symbol = renderer.originalSymbolForFeature(f, context)
        self.assertIsNone(symbol)

        # no matching category
        f.setAttributes(['xxx'])
        symbol = renderer.originalSymbolForFeature(f, context)
        self.assertEqual(symbol.color(), QColor(255, 255, 255)) # default symbol

        renderer.stopRender(context)
开发者ID:m-kuhn，项目名称:QGIS，代码行数:60，代码来源:test_qgscategorizedsymbolrenderer.py

示例3: testSymbolForValue

# 需要导入模块: from qgis.core import QgsCategorizedSymbolRenderer [as 别名]
# 或者: from qgis.core.QgsCategorizedSymbolRenderer import stopRender [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))
        symbol_d = createMarkerSymbol()
        symbol_d.setColor(QColor(255, 0, 255))
        renderer.addCategory(QgsRendererCategory(['d', 'e'], symbol_d, 'de'))

        # 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)

        # list
        symbol, ok = renderer.symbolForValue2('d')
        self.assertEqual(symbol.color(), QColor(255, 0, 255))
        self.assertTrue(ok)
        symbol, ok = renderer.symbolForValue2('e')
        self.assertEqual(symbol.color(), QColor(255, 0, 255))
        self.assertTrue(ok)

        # no matching category
        symbol, ok = renderer.symbolForValue2('xxxx')
        self.assertIsNone(symbol)
        self.assertFalse(ok)

        renderer.stopRender(context)
开发者ID:m-kuhn，项目名称:QGIS，代码行数:54，代码来源:test_qgscategorizedsymbolrenderer.py

示例4: testMatchToSymbols

# 需要导入模块: from qgis.core import QgsCategorizedSymbolRenderer [as 别名]
# 或者: from qgis.core.QgsCategorizedSymbolRenderer import stopRender [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.........
开发者ID:m-kuhn，项目名称:QGIS，代码行数:103，代码来源:test_qgscategorizedsymbolrenderer.py


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