本文整理汇总了Python中qgis.gui.QgsRasterBandComboBox类的典型用法代码示例。如果您正苦于以下问题：Python QgsRasterBandComboBox类的具体用法？Python QgsRasterBandComboBox怎么用？Python QgsRasterBandComboBox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QgsRasterBandComboBox类的3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: testSignals
def testSignals(self):
path = os.path.join(unitTestDataPath('raster'),
'band3_float32_noct_epsg4326.tif')
info = QFileInfo(path)
base_name = info.baseName()
layer = QgsRasterLayer(path, base_name)
self.assertTrue(layer)
combo = QgsRasterBandComboBox()
combo.setLayer(layer)
signal_spy = QSignalSpy(combo.bandChanged)
combo.setBand(2)
self.assertEqual(len(signal_spy), 1)
self.assertEqual(signal_spy[0][0], 2)
combo.setBand(3)
self.assertEqual(len(signal_spy), 2)
self.assertEqual(signal_spy[1][0], 3)示例2: testMultiBandRaster
def testMultiBandRaster(self):
path = os.path.join(unitTestDataPath('raster'),
'band3_float32_noct_epsg4326.tif')
info = QFileInfo(path)
base_name = info.baseName()
layer = QgsRasterLayer(path, base_name)
self.assertTrue(layer)
combo = QgsRasterBandComboBox()
combo.setLayer(layer)
self.assertEqual(combo.layer(), layer)
self.assertEqual(combo.currentBand(), 1)
self.assertEqual(combo.count(), 3)
combo.setBand(2)
self.assertEqual(combo.currentBand(), 2)
combo.setShowNotSetOption(True)
self.assertEqual(combo.currentBand(), 2)
self.assertEqual(combo.count(), 4)
combo.setShowNotSetOption(False)
self.assertEqual(combo.currentBand(), 2)
self.assertEqual(combo.count(), 3)示例3: testNoLayer
def testNoLayer(self):
"""
Test widget with no layer
"""
combo = QgsRasterBandComboBox()
self.assertFalse(combo.layer())
self.assertEqual(combo.currentBand(), -1)
combo.setShowNotSetOption(True)
self.assertEqual(combo.currentBand(), -1)
combo.setBand(11111)
self.assertEqual(combo.currentBand(), -1)
combo.setBand(-11111)
self.assertEqual(combo.currentBand(), -1)