本文整理汇总了Python中qgis.core.QgsReferencedRectangle类的典型用法代码示例。如果您正苦于以下问题:Python QgsReferencedRectangle类的具体用法?Python QgsReferencedRectangle怎么用?Python QgsReferencedRectangle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QgsReferencedRectangle类的5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: testRectangle
def testRectangle(self):
rect = QgsReferencedRectangle(QgsRectangle(0.0, 1.0, 20.0, 10.0), QgsCoordinateReferenceSystem('epsg:3111'))
self.assertEqual(rect.xMinimum(), 0.0)
self.assertEqual(rect.yMinimum(), 1.0)
self.assertEqual(rect.xMaximum(), 20.0)
self.assertEqual(rect.yMaximum(), 10.0)
self.assertEqual(rect.crs().authid(), 'EPSG:3111')
rect.setCrs(QgsCoordinateReferenceSystem('epsg:28356'))
self.assertEqual(rect.crs().authid(), 'EPSG:28356')
# in variant
v = QVariant(QgsReferencedRectangle(QgsRectangle(1.0, 2.0, 3.0, 4.0), QgsCoordinateReferenceSystem('epsg:3111')))
self.assertEqual(v.value().xMinimum(), 1.0)
self.assertEqual(v.value().yMinimum(), 2.0)
self.assertEqual(v.value().xMaximum(), 3.0)
self.assertEqual(v.value().yMaximum(), 4.0)
self.assertEqual(v.value().crs().authid(), 'EPSG:3111')
# to rectangle
r = QgsRectangle(rect)
self.assertEqual(r.xMinimum(), 0.0)
self.assertEqual(r.yMinimum(), 1.0)
self.assertEqual(r.xMaximum(), 20.0)
self.assertEqual(r.yMaximum(), 10.0)
# test that QgsReferencedRectangle IS a QgsRectangle
r2 = QgsRectangle(5, 6, 30, 40)
r2.combineExtentWith(rect)
self.assertEqual(r2.xMinimum(), 0.0)
self.assertEqual(r2.yMinimum(), 1.0)
self.assertEqual(r2.xMaximum(), 30.0)
self.assertEqual(r2.yMaximum(), 40.0)
示例2: setExtent
def setExtent(self, extent):
if extent is not None:
tokens = extent.split(' ')[0].split(',')
ext = QgsRectangle(float(tokens[0]), float(tokens[2]), float(tokens[1]), float(tokens[3]))
if len(tokens) > 1:
self.extent = QgsReferencedRectangle(ext, QgsCoordinateReferenceSystem(tokens[1][1:-1]))
else:
self.extent = ext
self.pixelSizeChanged()
示例3: PixelSizeWidget
class PixelSizeWidget(BASE, WIDGET):
def __init__(self):
super(PixelSizeWidget, self).__init__(None)
self.setupUi(self)
self.context = dataobjects.createContext()
self.extent = QgsRectangle()
self.layers = []
self.mCellXSpinBox.setShowClearButton(False)
self.mCellYSpinBox.setShowClearButton(False)
self.mRowsSpinBox.setShowClearButton(False)
self.mColumnsSpinBox.setShowClearButton(False)
self.mCellYSpinBox.valueChanged.connect(self.mCellXSpinBox.setValue)
self.mCellXSpinBox.valueChanged.connect(self.pixelSizeChanged)
self.mRowsSpinBox.valueChanged.connect(self.rowsChanged)
self.mColumnsSpinBox.valueChanged.connect(self.columnsChanged)
def setLayers(self, layersData):
self.extent = QgsRectangle()
self.layers = []
for row in layersData.split(';'):
v = row.split('::~::')
# need to keep a reference until interpolation is complete
layer = QgsProcessingUtils.variantToSource(v[0], self.context)
if layer:
self.layers.append(layer)
bbox = layer.sourceExtent()
if self.extent.isEmpty():
self.extent = bbox
else:
self.extent.combineExtentWith(bbox)
self.pixelSizeChanged()
def setExtent(self, extent):
if extent is not None:
tokens = extent.split(' ')[0].split(',')
ext = QgsRectangle(float(tokens[0]), float(tokens[2]), float(tokens[1]), float(tokens[3]))
if len(tokens) > 1:
self.extent = QgsReferencedRectangle(ext, QgsCoordinateReferenceSystem(tokens[1][1:-1]))
else:
self.extent = ext
self.pixelSizeChanged()
def pixelSizeChanged(self):
cell_size = self.mCellXSpinBox.value()
if cell_size <= 0:
return
self.mCellYSpinBox.blockSignals(True)
self.mCellYSpinBox.setValue(cell_size)
self.mCellYSpinBox.blockSignals(False)
rows = max(round(self.extent.height() / cell_size) + 1, 1)
cols = max(round(self.extent.width() / cell_size) + 1, 1)
self.mRowsSpinBox.blockSignals(True)
self.mRowsSpinBox.setValue(rows)
self.mRowsSpinBox.blockSignals(False)
self.mColumnsSpinBox.blockSignals(True)
self.mColumnsSpinBox.setValue(cols)
self.mColumnsSpinBox.blockSignals(False)
def rowsChanged(self):
rows = self.mRowsSpinBox.value()
if rows <= 0:
return
cell_size = self.extent.height() / rows
cols = max(round(self.extent.width() / cell_size) + 1, 1)
self.mColumnsSpinBox.blockSignals(True)
self.mColumnsSpinBox.setValue(cols)
self.mColumnsSpinBox.blockSignals(False)
for w in [self.mCellXSpinBox, self.mCellYSpinBox]:
w.blockSignals(True)
w.setValue(cell_size)
w.blockSignals(False)
def columnsChanged(self):
cols = self.mColumnsSpinBox.value()
if cols < 2:
return
cell_size = self.extent.width() / (cols - 1)
rows = max(round(self.extent.height() / cell_size), 1)
self.mRowsSpinBox.blockSignals(True)
self.mRowsSpinBox.setValue(rows)
self.mRowsSpinBox.blockSignals(False)
for w in [self.mCellXSpinBox, self.mCellYSpinBox]:
w.blockSignals(True)
w.setValue(cell_size)
w.blockSignals(False)
def setValue(self, value):
try:
numeric_value = float(value)
except:
return False
self.mCellXSpinBox.setValue(numeric_value)
self.mCellYSpinBox.setValue(numeric_value)
#.........这里部分代码省略.........
示例4: setLayers
def setLayers(self, layersData):
self.extent = QgsRectangle()
self.layers = []
for row in layersData.split(';'):
v = row.split('::~::')
# need to keep a reference until interpolation is complete
layer = QgsProcessingUtils.variantToSource(v[0], self.context)
if layer:
self.layers.append(layer)
bbox = layer.sourceExtent()
if self.extent.isEmpty():
self.extent = bbox
else:
self.extent.combineExtentWith(bbox)
self.pixelSizeChanged()
示例5: __init__
def __init__(self):
super(PixelSizeWidget, self).__init__(None)
self.setupUi(self)
self.context = dataobjects.createContext()
self.extent = QgsRectangle()
self.layers = []
self.mCellXSpinBox.setShowClearButton(False)
self.mCellYSpinBox.setShowClearButton(False)
self.mRowsSpinBox.setShowClearButton(False)
self.mColumnsSpinBox.setShowClearButton(False)
self.mCellYSpinBox.valueChanged.connect(self.mCellXSpinBox.setValue)
self.mCellXSpinBox.valueChanged.connect(self.pixelSizeChanged)
self.mRowsSpinBox.valueChanged.connect(self.rowsChanged)
self.mColumnsSpinBox.valueChanged.connect(self.columnsChanged)