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Python QgsComposerPolygon.nodeAtPosition方法代碼示例

本文整理匯總了Python中qgis.core.QgsComposerPolygon.nodeAtPosition方法的典型用法代碼示例。如果您正苦於以下問題:Python QgsComposerPolygon.nodeAtPosition方法的具體用法?Python QgsComposerPolygon.nodeAtPosition怎麽用?Python QgsComposerPolygon.nodeAtPosition使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在qgis.core.QgsComposerPolygon的用法示例。


在下文中一共展示了QgsComposerPolygon.nodeAtPosition方法的1個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Python代碼示例。

示例1: TestQgsComposerPolygon

# 需要導入模塊: from qgis.core import QgsComposerPolygon [as 別名]
# 或者: from qgis.core.QgsComposerPolygon import nodeAtPosition [as 別名]

#.........這裏部分代碼省略.........
        checker = QgsCompositionChecker(
            'composerpolygon_defaultstyle', self.mComposition)
        checker.setControlPathPrefix("composer_polygon")
        myTestResult, myMessage = checker.testComposition()
        assert myTestResult, myMessage

    def testRemoveNode(self):
        """Test removeNode method"""

        rc = self.mComposerPolygon.removeNode(100)
        self.assertEqual(rc, False)

        checker = QgsCompositionChecker(
            'composerpolygon_defaultstyle', self.mComposition)
        checker.setControlPathPrefix("composer_polygon")
        myTestResult, myMessage = checker.testComposition()
        assert myTestResult, myMessage

        self.assertEqual(self.mComposerPolygon.nodesSize(), 4)

    def testAddNode(self):
        """Test addNode method"""

        # default searching radius is 10
        self.assertEqual(self.mComposerPolygon.nodesSize(), 4)
        rc = self.mComposerPolygon.addNode(QPointF(50.0, 10.0))
        self.assertEqual(rc, False)

        # default searching radius is 10
        self.assertEqual(self.mComposerPolygon.nodesSize(), 4)
        rc = self.mComposerPolygon.addNode(QPointF(50.0, 9.99))
        self.assertEqual(rc, True)
        self.assertEqual(self.mComposerPolygon.nodesSize(), 5)

    def testAddNodeCustomRadius(self):
        """Test addNode with custom radius"""

        # default searching radius is 10
        self.assertEqual(self.mComposerPolygon.nodesSize(), 4)
        rc = self.mComposerPolygon.addNode(QPointF(50.0, 8.1), True, 8.0)
        self.assertEqual(rc, False)
        self.assertEqual(self.mComposerPolygon.nodesSize(), 4)

        # default searching radius is 10
        rc = self.mComposerPolygon.addNode(QPointF(50.0, 7.9), True, 8.0)
        self.assertEqual(rc, True)
        self.assertEqual(self.mComposerPolygon.nodesSize(), 5)

    def testAddNodeWithoutCheckingArea(self):
        """Test addNode without checking the maximum distance allowed"""

        # default searching radius is 10
        self.assertEqual(self.mComposerPolygon.nodesSize(), 4)
        rc = self.mComposerPolygon.addNode(QPointF(50.0, 20.0))
        self.assertEqual(rc, False)
        self.assertEqual(self.mComposerPolygon.nodesSize(), 4)

        # default searching radius is 10
        self.assertEqual(self.mComposerPolygon.nodesSize(), 4)
        rc = self.mComposerPolygon.addNode(QPointF(50.0, 20.0), False)
        self.assertEqual(rc, True)
        self.assertEqual(self.mComposerPolygon.nodesSize(), 5)

        checker = QgsCompositionChecker(
            'composerpolygon_addnode', self.mComposition)
        checker.setControlPathPrefix("composer_polygon")
        myTestResult, myMessage = checker.testComposition()
        assert myTestResult, myMessage

    def testMoveNode(self):
        """Test moveNode method"""

        rc = self.mComposerPolygon.moveNode(30, QPointF(100.0, 300.0))
        self.assertEqual(rc, False)

        rc = self.mComposerPolygon.moveNode(3, QPointF(100.0, 150.0))
        self.assertEqual(rc, True)

        checker = QgsCompositionChecker(
            'composerpolygon_movenode', self.mComposition)
        checker.setControlPathPrefix("composer_polygon")
        myTestResult, myMessage = checker.testComposition()
        assert myTestResult, myMessage

    def testNodeAtPosition(self):
        """Test nodeAtPosition method"""

        # default searching radius is 10
        rc = self.mComposerPolygon.nodeAtPosition(QPointF(100.0, 210.0))
        self.assertEqual(rc, -1)

        # default searching radius is 10
        rc = self.mComposerPolygon.nodeAtPosition(
            QPointF(100.0, 210.0), False)
        self.assertEqual(rc, 3)

        # default searching radius is 10
        rc = self.mComposerPolygon.nodeAtPosition(
            QPointF(100.0, 210.0), True, 10.1)
        self.assertEqual(rc, 3)
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