Juergen E. Fischer 956c155e8f fix python pep8 warnings and fix some revealed errors
pep8 --ignore=E111,E128,E201,E202,E203,E211,E221,E222,E225,E226,E227,E231,E241,E261,E265,E272,E302,E303,E501,E701 \
     --exclude="ui_*.py,debian/*,python/ext-libs/*" \
     .
2015-02-01 20:46:47 +01:00

45 lines
1.2 KiB
Python

##Vector geometry tools=group
##Polygons=vector
##Max_area=number 100000
##Results=output vector
from qgis.core import QGis, QgsFeature, QgsGeometry
from shapely.geometry import Polygon, MultiPolygon
from shapely.wkb import loads
from shapely.wkt import dumps
polyLayer = processing.getObject(Polygons)
polyPrder = polyLayer.dataProvider()
n = polyLayer.featureCount()
l = 0
writer = processing.VectorWriter(Results, None, polyPrder.fields(),
QGis.WKBMultiPolygon, polyPrder.crs())
resgeom = QgsGeometry()
resfeat = QgsFeature()
for feat in processing.features(polyLayer):
progress.setPercentage(int(100*l/n))
l+=1
g = loads(feat.geometry().asWkb())
if g.geom_type == 'MultiPolygon':
resg = [Polygon(p.exterior,
[r for r in p.interiors if Polygon(r).area > Max_area]) for p in g]
else:
resg = [Polygon(g.exterior,
[r for r in g.interiors if Polygon(r).area > Max_area])]
resgeom = QgsGeometry().fromWkt(dumps(MultiPolygon(resg)))
resfeat.setAttributes(feat.attributes())
resfeat.setGeometry(resgeom)
writer.addFeature(resfeat)
del writer