本文整理汇总了Python中qgis.core.QgsProject.crs方法的典型用法代码示例。如果您正苦于以下问题：Python QgsProject.crs方法的具体用法？Python QgsProject.crs怎么用？Python QgsProject.crs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.QgsProject的用法示例。
在下文中一共展示了QgsProject.crs方法的1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: MapCanvasEffects
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import crs [as 别名]
class MapCanvasEffects():
def __init__(self):
self.project = QgsProject().instance()
self.canvas = QgsUtils.iface.mapCanvas()
self.timer = QTimer( self.canvas )
self.flash = None
def highlight(self, layer, geometry):
def getFlash():
h = QgsHighlight( self.canvas, geometry, layer )
h.setColor( QColor( 255, 0, 0, 255 ) )
h.setFillColor( QColor( 255, 0, 0, 100 ) )
h.setWidth( 2 )
return h
def finished():
self.timer.stop()
self.timer.timeout.disconnect( finished )
del self.flash
self.flash = getFlash()
self.timer.timeout.connect( finished )
self.timer.start( 500 ) # Milliseconds before finishing the flash
def zoom(self, layer, geometry):
def getBoudingBoxGeomCanvas():
crsLayer = layer.crs()
crsCanvas = self.project.crs()
if not crsLayer == crsCanvas:
ct = QgsCoordinateTransform( layer.crs(), self.project.crs(), self.project )
bbox = ct.transform( geometry.boundingBox() )
else:
bbox = geometry.boundingBox()
return bbox
self.canvas.setExtent( getBoudingBoxGeomCanvas() )
self.canvas.zoomByFactor( 1.05 )
self.canvas.refresh()
self.highlight( layer, geometry )
def highlightFeature(self, layer, feature):
if not feature.hasGeometry():
return
geom = feature.geometry()
self.highlight( layer, geom )
def zoomFeature(self, layer, feature):
if not feature.hasGeometry():
return
geom = feature.geometry()
self.zoom( layer, geom )