本文整理汇总了Python中qgis.core.QgsRectangle.asWktPolygon方法的典型用法代码示例。如果您正苦于以下问题：Python QgsRectangle.asWktPolygon方法的具体用法？Python QgsRectangle.asWktPolygon怎么用？Python QgsRectangle.asWktPolygon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.asWktPolygon方法的4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: testAsWktPolygon
# 需要导入模块: from qgis.core import QgsRectangle [as 别名]
# 或者: from qgis.core.QgsRectangle import asWktPolygon [as 别名]
def testAsWktPolygon(self):
"""Test that we can get a proper rect wkt polygon representation for rect"""
rect1 = QgsRectangle(0.0, 0.0, 5.0, 5.0)
myExpectedWkt = "POLYGON((0 0, " "5 0, " "5 5, " "0 5, " "0 0))"
myWkt = rect1.asWktPolygon()
myMessage = "Expected: %s\nGot: %s\n" % (myExpectedWkt, myWkt)
assert compareWkt(myWkt, myExpectedWkt), myMessage示例2: testAsWktPolygon
# 需要导入模块: from qgis.core import QgsRectangle [as 别名]
# 或者: from qgis.core.QgsRectangle import asWktPolygon [as 别名]
def testAsWktPolygon(self):
"""Test that we can get a proper wkt polygon representation fo the rect"""
rect1 = QgsRectangle( 0.0, 0.0, 5.0, 5.0)
myExpectedWkt = ('POLYGON((0.0000000000000000 0.0000000000000000, '
'5.0000000000000000 0.0000000000000000, '
'5.0000000000000000 5.0000000000000000, '
'0.0000000000000000 5.0000000000000000, '
'0.0000000000000000 0.0000000000000000))')
myWkt = rect1.asWktPolygon()
myMessage = ('Expected: %s\nGot: %s\n' %
(myExpectedWkt, myWkt))
self.assertEquals(myWkt, myExpectedWkt, myMessage)示例3: testAsWktPolygon
# 需要导入模块: from qgis.core import QgsRectangle [as 别名]
# 或者: from qgis.core.QgsRectangle import asWktPolygon [as 别名]
def testAsWktPolygon(self):
"""Test that we can get a proper rect wkt polygon representation for rect"""
rect1 = QgsRectangle(0.0, 0.0, 5.0, 5.0)
myExpectedWkt = ('POLYGON((0 0, '
'5 0, '
'5 5, '
'0 5, '
'0 0))')
myWkt = rect1.asWktPolygon()
myMessage = ('Expected: %s\nGot: %s\n' %
(myExpectedWkt, myWkt))
assert compareWkt(myWkt, myExpectedWkt), myMessage示例4: envelope2layer
# 需要导入模块: from qgis.core import QgsRectangle [as 别名]
# 或者: from qgis.core.QgsRectangle import asWktPolygon [as 别名]
def envelope2layer(self, envelope):
"""Transform metadata envelope into a QGIS layer."""
# layer
md_lyr = QgsVectorLayer("Polygon?crs=epsg:4326",
"Metadata envelope",
"memory")
md_lyr.setLayerTransparency(75)
symbols = md_lyr.rendererV2().symbols()
symbol = symbols[0]
symbol.setColor(QColor.fromRgb(255,20,147))
if envelope.get("type") == "Polygon":
# parse coordinates
coords = envelope.get("coordinates")[0]
poly_pts = [QgsPoint(round(i[0], 3),
round(i[1], 3))
for i in coords]
# add geometry to layer
poly = QgsFeature()
poly.setGeometry(QgsGeometry.fromPolygon([poly_pts]))
md_lyr.dataProvider().addFeatures([poly])
md_lyr.updateExtents()
elif envelope.get("type") == "MultiPolygon":
coords = envelope.get("bbox")
bbox = QgsRectangle(round(coords[0], 3),
round(coords[1], 3),
round(coords[2], 3),
round(coords[3], 3),)
poly = QgsFeature()
poly.setGeometry(QgsGeometry.fromWkt(bbox.asWktPolygon()))
md_lyr.dataProvider().addFeatures([poly])
md_lyr.updateExtents()
elif envelope.get("type") == "Point":
return md_lyr
else:
pass
# method ending
return md_lyr