本文整理汇总了Python中qgis.core.QgsRectangle.grow方法的典型用法代码示例。如果您正苦于以下问题：Python QgsRectangle.grow方法的具体用法？Python QgsRectangle.grow怎么用？Python QgsRectangle.grow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.QgsRectangle的用法示例。
在下文中一共展示了QgsRectangle.grow方法的2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: currentHistoryChanged
# 需要导入模块: from qgis.core import QgsRectangle [as 别名]
# 或者: from qgis.core.QgsRectangle import grow [as 别名]
def currentHistoryChanged(self, current, previous):
self.new_geometry.reset()
self.old_geometry.reset()
self.tblChanges.model().removeRows()
if not current.isValid():
return
item = current.data(Qt.UserRole)
if item is None:
data = {}
else:
data = current.data(Qt.UserRole).getDetails()
with SetLocale_CtxDec():
extent = None
if data.get('new_geometry'):
wkt = CreateGeometryFromJson( json.dumps(data['new_geometry']) ).ExportToWkt()
geom = QgsGeometry.fromWkt( wkt )
l = QgsVectorLayer('Point?crs=epsg:4326', 'asd', 'memory')
self.new_geometry.setToGeometry( geom, l )
extent = QgsRectangle(geom.boundingBox())
if data.get('old_geometry'):
wkt = CreateGeometryFromJson( json.dumps(data['old_geometry']) ).ExportToWkt()
geom = QgsGeometry.fromWkt( wkt )
l = QgsVectorLayer('Point?crs=epsg:4326', 'asd', 'memory')
self.old_geometry.setToGeometry( geom, l )
if extent is None:
extent = QgsRectangle(geom.boundingBox())
else:
extent.combineExtentWith( geom.boundingBox() )
if extent is not None:
extent.grow(0.01)
self.mapCanvas.setExtent( extent )
self.mapCanvas.refresh()
if data.get('what_attributes', []):
self.tblChanges.model().insertRows( 0, data.get('what_attributes', []) )示例2: jump_to
# 需要导入模块: from qgis.core import QgsRectangle [as 别名]
# 或者: from qgis.core.QgsRectangle import grow [as 别名]
def jump_to(self, item):
data = item.data(32)
if not data:
return
layername, fid = data[0], data[1]
layer = roam.api.utils.layer_by_name(layername)
feature = layer.getFeatures(QgsFeatureRequest(fid)).next()
box = feature.geometry().boundingBox()
xmin, xmax, ymin, ymax = box.xMinimum(), box.xMaximum(), box.yMinimum(), box.yMaximum()
xmin -= 5
xmax += 5
ymin -= 5
ymax += 5
box = QgsRectangle(xmin, ymin, xmax, ymax)
box.grow(20)
self.api.mainwindow.canvas.setExtent(box)
self.api.mainwindow.canvas.refresh()
self.api.mainwindow.showmap()
RoamEvents.selectionchanged.emit({layer: [feature]})