Python core.QgsSimpleMarkerSymbolLayer类代码示例

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本文整理汇总了Python中qgis.core.QgsSimpleMarkerSymbolLayer类的典型用法代码示例。如果您正苦于以下问题：Python QgsSimpleMarkerSymbolLayer类的具体用法？Python QgsSimpleMarkerSymbolLayer怎么用？Python QgsSimpleMarkerSymbolLayer使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。

在下文中一共展示了QgsSimpleMarkerSymbolLayer类的11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，您的评价将有助于我们的系统推荐出更棒的Python代码示例。

示例1: testRenderMarkerLayerDisabled

    def testRenderMarkerLayerDisabled(self):
        """ test that rendering a marker symbol with disabled layer works"""
        layer = QgsSimpleMarkerSymbolLayer()
        layer.setEnabled(False)

        symbol = QgsMarkerSymbol()
        symbol.changeSymbolLayer(0, layer)

        image = QImage(200, 200, QImage.Format_RGB32)
        painter = QPainter()
        ms = QgsMapSettings()

        geom = QgsGeometry.fromWkt('Point (1 2)')
        f = QgsFeature()
        f.setGeometry(geom)

        extent = QgsRectangle(0, 0, 4, 4)

        ms.setExtent(extent)
        ms.setOutputSize(image.size())
        context = QgsRenderContext.fromMapSettings(ms)
        context.setPainter(painter)
        context.setScaleFactor(96 / 25.4)  # 96 DPI

        painter.begin(image)
        image.fill(QColor(255, 255, 255))

        symbol.startRender(context)
        symbol.renderFeature(f, context)
        symbol.stopRender(context)
        painter.end()

        self.assertTrue(self.imageCheck('symbol_layer', 'symbollayer_disabled', image))

开发者ID:mj10777，项目名称:QGIS，代码行数:33，代码来源:test_qgssymbollayer.py

示例2: testWidth

    def testWidth(self):
        ms = QgsMapSettings()
        extent = QgsRectangle(100, 200, 100, 200)
        ms.setExtent(extent)
        ms.setOutputSize(QSize(400, 400))
        context = QgsRenderContext.fromMapSettings(ms)
        context.setScaleFactor(96 / 25.4)  # 96 DPI
        ms.setExtent(QgsRectangle(100, 150, 100, 150))
        ms.setOutputDpi(ms.outputDpi() * 2)
        context2 = QgsRenderContext.fromMapSettings(ms)
        context2.setScaleFactor(300 / 25.4)

        s = QgsFillSymbol()
        s.deleteSymbolLayer(0)

        marker_line = QgsMarkerLineSymbolLayer(True)
        marker_line.setPlacement(QgsMarkerLineSymbolLayer.FirstVertex)
        marker = QgsSimpleMarkerSymbolLayer(QgsSimpleMarkerSymbolLayer.Triangle, 10)
        marker.setColor(QColor(255, 0, 0))
        marker.setStrokeStyle(Qt.NoPen)
        marker_symbol = QgsMarkerSymbol()
        marker_symbol.changeSymbolLayer(0, marker)
        marker_line.setSubSymbol(marker_symbol)

        self.assertEqual(marker_line.width(), 10)
        self.assertAlmostEqual(marker_line.width(context), 37.795275590551185, 3)
        self.assertAlmostEqual(marker_line.width(context2), 118.11023622047244, 3)

        marker_line.subSymbol().setSizeUnit(QgsUnitTypes.RenderPixels)
        self.assertAlmostEqual(marker_line.width(context), 10.0, 3)
        self.assertAlmostEqual(marker_line.width(context2), 10.0, 3)

开发者ID:manisandro，项目名称:QGIS，代码行数:31，代码来源:test_qgsmarkerlinesymbollayer.py

示例3: testSimpleMarkerRotation

    def testSimpleMarkerRotation(self):
        symbol = QgsSimpleMarkerSymbolLayer(
            QgsSimpleMarkerSymbolLayerBase.Star, color=QColor(255, 0, 0), strokeColor=QColor(0, 255, 0), size=10)
        symbol.setAngle(50)
        dom, root = self.symbolToSld(symbol)
        # print( "Simple marker rotation: " + root.ownerDocument().toString())

        self.assertStaticRotation(root, '50')

开发者ID:rskelly，项目名称:QGIS，代码行数:8，代码来源:test_qgssymbollayer_createsld.py

示例4: testRenderMarkerLayerDataDefined

    def testRenderMarkerLayerDataDefined(self):
        """ test that rendering a marker symbol with data defined enabled layer works"""

        points_shp = os.path.join(TEST_DATA_DIR, 'points.shp')
        points_layer = QgsVectorLayer(points_shp, 'Points', 'ogr')
        QgsProject.instance().addMapLayer(points_layer)

        layer = QgsSimpleMarkerSymbolLayer()
        layer.setDataDefinedProperty(QgsSymbolLayer.PropertyLayerEnabled, QgsProperty.fromExpression("Class='Biplane'"))
        layer.setColor(QColor(100, 150, 150))
        layer.setSize(5)
        layer.setStrokeStyle(Qt.NoPen)

        symbol = QgsMarkerSymbol()
        symbol.changeSymbolLayer(0, layer)
        points_layer.setRenderer(QgsSingleSymbolRenderer(symbol))

        ms = QgsMapSettings()
        ms.setOutputSize(QSize(400, 400))
        ms.setOutputDpi(96)
        ms.setExtent(QgsRectangle(-133, 22, -70, 52))
        ms.setLayers([points_layer])

        renderchecker = QgsMultiRenderChecker()
        renderchecker.setMapSettings(ms)
        renderchecker.setControlPathPrefix('symbol_layer')
        renderchecker.setControlName('expected_markerlayer_ddenabled')
        self.assertTrue(renderchecker.runTest('markerlayer_ddenabled'))
        QgsProject.instance().removeMapLayer(points_layer)

开发者ID:mj10777，项目名称:QGIS，代码行数:29，代码来源:test_qgssymbollayer.py

示例5: testSimpleMarkerUnitDefault

    def testSimpleMarkerUnitDefault(self):
        symbol = QgsSimpleMarkerSymbolLayer(
            QgsSimpleMarkerSymbolLayerBase.Star, color=QColor(255, 0, 0), strokeColor=QColor(0, 255, 0), size=10)
        symbol.setStrokeWidth(3)
        symbol.setOffset(QPointF(5, 10))
        dom, root = self.symbolToSld(symbol)
        # print("Simple marker unit mm: " + root.ownerDocument().toString())

        # Check the size has been rescaled to pixels
        self.assertStaticSize(root, '36')

        # Check the same happened to the stroke width
        self.assertStrokeWidth(root, 2, 11)
        self.assertStaticDisplacement(root, 18, 36)

开发者ID:rskelly，项目名称:QGIS，代码行数:14，代码来源:test_qgssymbollayer_createsld.py

示例6: testSimpleMarkerSymbolLayer

    def testSimpleMarkerSymbolLayer(self):
        symbol = QgsSimpleMarkerSymbolLayer(
            'star', QColor(255, 0, 0), QColor(0, 255, 0), 10)
        symbol.setAngle(50)
        dom = QDomDocument()
        root = dom.createElement("FakeRoot")
        dom.appendChild(root)
        symbol.toSld(dom, root, {})
        # print "This is the dom: " + dom.toString()

        # Check the rotation element is a literal, not a
        rotation = root.elementsByTagName('se:Rotation').item(0)
        literal = rotation.firstChild()
        self.assertEquals("ogc:Literal", literal.nodeName())
        self.assertEquals('50', literal.firstChild().nodeValue())

开发者ID:kiselev-dv，项目名称:QGIS，代码行数:15，代码来源:test_qgssymbollayer_createsld.py

示例7: testRingFilter

    def testRingFilter(self):
        # test filtering rings during rendering
        s = QgsFillSymbol()
        s.deleteSymbolLayer(0)

        marker_line = QgsMarkerLineSymbolLayer(True)
        marker_line.setPlacement(QgsMarkerLineSymbolLayer.FirstVertex)
        marker = QgsSimpleMarkerSymbolLayer(QgsSimpleMarkerSymbolLayer.Triangle, 4)
        marker.setColor(QColor(255, 0, 0))
        marker.setStrokeStyle(Qt.NoPen)
        marker_symbol = QgsMarkerSymbol()
        marker_symbol.changeSymbolLayer(0, marker)
        marker_line.setSubSymbol(marker_symbol)

        s.appendSymbolLayer(marker_line.clone())
        self.assertEqual(s.symbolLayer(0).ringFilter(), QgsLineSymbolLayer.AllRings)
        s.symbolLayer(0).setRingFilter(QgsLineSymbolLayer.ExteriorRingOnly)
        self.assertEqual(s.symbolLayer(0).ringFilter(), QgsLineSymbolLayer.ExteriorRingOnly)

        s2 = s.clone()
        self.assertEqual(s2.symbolLayer(0).ringFilter(), QgsLineSymbolLayer.ExteriorRingOnly)

        doc = QDomDocument()
        context = QgsReadWriteContext()
        element = QgsSymbolLayerUtils.saveSymbol('test', s, doc, context)

        s2 = QgsSymbolLayerUtils.loadSymbol(element, context)
        self.assertEqual(s2.symbolLayer(0).ringFilter(), QgsLineSymbolLayer.ExteriorRingOnly)

        # rendering test
        s3 = QgsFillSymbol()
        s3.deleteSymbolLayer(0)
        s3.appendSymbolLayer(
            QgsMarkerLineSymbolLayer())
        s3.symbolLayer(0).setRingFilter(QgsLineSymbolLayer.ExteriorRingOnly)
        s3.symbolLayer(0).setAverageAngleLength(0)

        g = QgsGeometry.fromWkt('Polygon((0 0, 10 0, 10 10, 0 10, 0 0),(1 1, 1 2, 2 2, 2 1, 1 1),(8 8, 9 8, 9 9, 8 9, 8 8))')
        rendered_image = self.renderGeometry(s3, g)
        assert self.imageCheck('markerline_exterioronly', 'markerline_exterioronly', rendered_image)

        s3.symbolLayer(0).setRingFilter(QgsLineSymbolLayer.InteriorRingsOnly)
        g = QgsGeometry.fromWkt('Polygon((0 0, 10 0, 10 10, 0 10, 0 0),(1 1, 1 2, 2 2, 2 1, 1 1),(8 8, 9 8, 9 9, 8 9, 8 8))')
        rendered_image = self.renderGeometry(s3, g)
        assert self.imageCheck('markerline_interioronly', 'markerline_interioronly', rendered_image)

开发者ID:manisandro，项目名称:QGIS，代码行数:45，代码来源:test_qgsmarkerlinesymbollayer.py

示例8: testForceRHR

    def testForceRHR(self):
        # test forcing right hand rule during rendering

        s = QgsFillSymbol()
        s.deleteSymbolLayer(0)
        s.appendSymbolLayer(
            QgsSimpleFillSymbolLayer(color=QColor(255, 0, 0), strokeColor=QColor(0, 255, 0)))
        self.assertFalse(s.forceRHR())
        s.setForceRHR(True)
        self.assertTrue(s.forceRHR())
        s.setForceRHR(False)
        self.assertFalse(s.forceRHR())

        s.setForceRHR(True)
        doc = QDomDocument()
        context = QgsReadWriteContext()
        element = QgsSymbolLayerUtils.saveSymbol('test', s, doc, context)

        s2 = QgsSymbolLayerUtils.loadSymbol(element, context)
        self.assertTrue(s2.forceRHR())

        # rendering test
        s3 = QgsFillSymbol()
        s3.deleteSymbolLayer(0)
        s3.appendSymbolLayer(
            QgsSimpleFillSymbolLayer(color=QColor(255, 200, 200), strokeColor=QColor(0, 255, 0), strokeWidth=2))
        marker_line = QgsMarkerLineSymbolLayer(True)
        marker_line.setPlacement(QgsMarkerLineSymbolLayer.FirstVertex)
        marker = QgsSimpleMarkerSymbolLayer(QgsSimpleMarkerSymbolLayer.Triangle, 4)
        marker.setColor(QColor(255, 0, 0))
        marker.setStrokeStyle(Qt.NoPen)
        marker_symbol = QgsMarkerSymbol()
        marker_symbol.changeSymbolLayer(0, marker)
        marker_line.setSubSymbol(marker_symbol)
        s3.appendSymbolLayer(marker_line)

        g = QgsGeometry.fromWkt('Polygon((0 0, 10 0, 10 10, 0 10, 0 0),(1 1, 1 2, 2 2, 2 1, 1 1),(8 8, 9 8, 9 9, 8 9, 8 8))')
        rendered_image = self.renderGeometry(s3, g)
        assert self.imageCheck('force_rhr_off', 'polygon_forcerhr_off', rendered_image)

        s3.setForceRHR(True)
        rendered_image = self.renderGeometry(s3, g)
        assert self.imageCheck('force_rhr_on', 'polygon_forcerhr_on', rendered_image)

开发者ID:yoichigmf，项目名称:QGIS，代码行数:43，代码来源:test_qgssymbol.py

示例9: testMarkerAverageAngleCenter

    def testMarkerAverageAngleCenter(self):
        s = QgsLineSymbol()
        s.deleteSymbolLayer(0)

        marker_line = QgsMarkerLineSymbolLayer(True)
        marker_line.setPlacement(QgsTemplatedLineSymbolLayerBase.CentralPoint)
        marker = QgsSimpleMarkerSymbolLayer(QgsSimpleMarkerSymbolLayer.Triangle, 4)
        marker.setColor(QColor(255, 0, 0))
        marker.setStrokeStyle(Qt.NoPen)
        marker_symbol = QgsMarkerSymbol()
        marker_symbol.changeSymbolLayer(0, marker)
        marker_line.setSubSymbol(marker_symbol)
        marker_line.setAverageAngleLength(60)
        line_symbol = QgsLineSymbol()
        line_symbol.changeSymbolLayer(0, marker_line)

        s.appendSymbolLayer(marker_line.clone())

        g = QgsGeometry.fromWkt('LineString(0 0, 10 10, 10 0)')
        rendered_image = self.renderGeometry(s, g)
        assert self.imageCheck('markerline_center_average_angle', 'markerline_center_average_angle', rendered_image)

开发者ID:manisandro，项目名称:QGIS，代码行数:21，代码来源:test_qgsmarkerlinesymbollayer.py

示例10: testNoPoint

    def testNoPoint(self):
        s = QgsLineSymbol()
        s.deleteSymbolLayer(0)

        marker_line = QgsMarkerLineSymbolLayer(True)
        marker_line.setPlacement(QgsTemplatedLineSymbolLayerBase.Interval)
        marker_line.setOffsetAlongLine(1000)
        marker_line.setIntervalUnit(QgsUnitTypes.RenderMapUnits)
        marker = QgsSimpleMarkerSymbolLayer(QgsSimpleMarkerSymbolLayer.Circle, 4)
        marker.setColor(QColor(255, 0, 0, 100))
        marker.setStrokeStyle(Qt.NoPen)
        marker_symbol = QgsMarkerSymbol()
        marker_symbol.changeSymbolLayer(0, marker)
        marker_line.setSubSymbol(marker_symbol)
        line_symbol = QgsLineSymbol()
        line_symbol.changeSymbolLayer(0, marker_line)

        s.appendSymbolLayer(marker_line.clone())

        g = QgsGeometry.fromWkt('LineString(0 0, 0 10, 10 10)')
        rendered_image = self.renderGeometry(s, g)
        assert self.imageCheck('markerline_none', 'markerline_none', rendered_image)

开发者ID:manisandro，项目名称:QGIS，代码行数:22，代码来源:test_qgsmarkerlinesymbollayer.py

示例11: testSimpleMarkerUnitPixels

    def testSimpleMarkerUnitPixels(self):
        symbol = QgsSimpleMarkerSymbolLayer(
            QgsSimpleMarkerSymbolLayerBase.Star, color=QColor(255, 0, 0), strokeColor=QColor(0, 255, 0), size=10)
        symbol.setStrokeWidth(3)
        symbol.setOffset(QPointF(5, 10))
        symbol.setOutputUnit(QgsUnitTypes.RenderPixels)
        dom, root = self.symbolToSld(symbol)
        # print("Marker unit mm: " + root.ownerDocument().toString())

        # Check the size has not been rescaled
        self.assertStaticSize(root, '10')

        # Check the same happened to the stroke width
        self.assertStrokeWidth(root, 2, 3)
        self.assertStaticDisplacement(root, 5, 10)

开发者ID:rskelly，项目名称:QGIS，代码行数:15，代码来源:test_qgssymbollayer_createsld.py

注：本文中的qgis.core.QgsSimpleMarkerSymbolLayer类示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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Python core.QgsSimpleMarkerSymbolLayer类代码示例

示例1: testRenderMarkerLayerDisabled

示例2: testWidth

示例3: testSimpleMarkerRotation

示例4: testRenderMarkerLayerDataDefined

示例5: testSimpleMarkerUnitDefault

示例6: testSimpleMarkerSymbolLayer

示例7: testRingFilter

示例8: testForceRHR

示例9: testMarkerAverageAngleCenter

示例10: testNoPoint

示例11: testSimpleMarkerUnitPixels

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