def convertToPolygons(self, geometry):
surfaces = self.getSurfaces(geometry.constGet())
output_wkb = self.convertWkbToPolygons(geometry.wkbType())
out_geom = None
if QgsWkbTypes.flatType(output_wkb) == QgsWkbTypes.MultiPolygon:
out_geom = QgsMultiPolygon()
else:
out_geom = QgsMultiSurface()
for surface in surfaces:
out_geom.addGeometry(surface)
return out_geom
def convertToPolygons(self, geometry):
surfaces = self.getSurfaces(geometry.constGet())
output_wkb = self.convertWkbToPolygons(geometry.wkbType())
out_geom = None
if QgsWkbTypes.flatType(output_wkb) == QgsWkbTypes.MultiPolygon:
out_geom = QgsMultiPolygon()
else:
out_geom = QgsMultiSurface()
for surface in surfaces:
out_geom.addGeometry(surface)
return out_geom
def tzf_to_qgis_polygon(tzdata):
if not tzdata or len(tzdata) < 1:
return None
multi_poly = QgsMultiPolygon()
for tzpoly in tzdata:
holes = []
poly = QgsPolygon()
for x, part in enumerate(tzpoly):
if x == 0:
outer_ls = QgsLineString(part[0], part[1])
poly.setExteriorRing(outer_ls)
else:
hole_ls = QgsLineString(part[0], part[1])
holes.append(hole_ls)
poly.setInteriorRings(holes)
multi_poly.addGeometry(poly)
return (QgsGeometry(multi_poly))
def splitPolygon(self, geom):
z_func = lambda x, y: self.valueOnSurface(x, y) or 0
cache = FunctionCacheXY(z_func)
z_func = cache.func
polygons = QgsMultiPolygon()
for poly in self._splitPolygon(geom):
p = QgsPolygon()
ring = QgsLineString()
for pt in poly[0]:
ring.addVertex(QgsPoint(pt.x(), pt.y(), z_func(pt.x(), pt.y())))
p.setExteriorRing(ring)
for bnd in poly[1:]:
ring = QgsLineString()
for pt in bnd:
ring.addVertex(QgsPoint(pt.x(), pt.y(), z_func(pt.x(), pt.y())))
p.addInteriorRing(ring)
polygons.addGeometry(p)
return QgsGeometry(polygons)
def txestGeometryRendering(self):
'''Tests rendering a bunch of different geometries, including bad/odd geometries.'''
empty_multipolygon = QgsMultiPolygon()
empty_multipolygon.addGeometry(QgsPolygon())
empty_polygon = QgsPolygon()
empty_linestring = QgsLineString()
tests = [
{
'name': 'Point',
'wkt': 'Point (1 2)',
'reference_image': 'point'
},
{
'name': 'MultiPoint',
'wkt': 'MultiPoint ((10 30),(40 20),(30 10),(20 10))',
'reference_image': 'multipoint'
},
{
'name': 'LineString',
'wkt': 'LineString (0 0,3 4,4 3)',
'reference_image': 'linestring'
},
{
'name': 'Empty LineString',
'geom': QgsGeometry(empty_linestring),
'reference_image': 'empty'
},
{
'name': 'MultiLineString',
'wkt':
'MultiLineString ((0 0, 1 0, 1 1, 2 1, 2 0), (3 1, 5 1, 5 0, 6 0))',
'reference_image': 'multilinestring'
},
{
'name': 'Polygon',
'wkt':
'Polygon ((0 0, 10 0, 10 10, 0 10, 0 0),(5 5, 7 5, 7 7 , 5 7, 5 5))',
'reference_image': 'polygon'
},
{
'name': 'Empty Polygon',
'geom': QgsGeometry(empty_polygon),
'reference_image': 'empty'
},
{
'name': 'MultiPolygon',
'wkt':
'MultiPolygon (((0 0, 1 0, 1 1, 2 1, 2 2, 0 2, 0 0)),((4 0, 5 0, 5 2, 3 2, 3 1, 4 1, 4 0)))',
'reference_image': 'multipolygon'
},
{
'name': 'Empty MultiPolygon',
'geom': QgsGeometry(empty_multipolygon),
'reference_image': 'empty'
},
{
'name': 'CircularString',
'wkt': 'CIRCULARSTRING(268 415,227 505,227 406)',
'reference_image': 'circular_string'
},
{
'name': 'CompoundCurve',
'wkt':
'COMPOUNDCURVE((5 3, 5 13), CIRCULARSTRING(5 13, 7 15, 9 13), (9 13, 9 3), CIRCULARSTRING(9 3, 7 1, 5 3))',
'reference_image': 'compound_curve'
},
{
'name': 'CurvePolygon',
'wkt': 'CURVEPOLYGON(CIRCULARSTRING(1 3, 3 5, 4 7, 7 3, 1 3))',
'reference_image': 'curve_polygon'
},
{
'name': 'MultiCurve',
'wkt':
'MultiCurve((5 5,3 5,3 3,0 3),CIRCULARSTRING(0 0, 2 1,2 2))',
'reference_image': 'multicurve'
},
{
'name': 'CurvePolygon_no_arc', # refs #14028
'wkt': 'CURVEPOLYGON(LINESTRING(1 3, 3 5, 4 7, 7 3, 1 3))',
'reference_image': 'curve_polygon_no_arc'
}
]
for test in tests:
def get_geom():
if 'geom' not in test:
geom = QgsGeometry.fromWkt(test['wkt'])
assert geom and not geom.isNull(
), 'Could not create geometry {}'.format(test['wkt'])
else:
geom = test['geom']
return geom
geom = get_geom()
rendered_image = self.renderGeometry(geom)
assert self.imageCheck(test['name'], test['reference_image'],
rendered_image)
# Note - each test is repeated with the same geometry and reference image, but with added
# z and m dimensions. This tests that presence of the dimensions does not affect rendering
# test with Z
geom_z = get_geom()
geom_z.get().addZValue(5)
rendered_image = self.renderGeometry(geom_z)
assert self.imageCheck(test['name'] + 'Z', test['reference_image'],
rendered_image)
# test with ZM
geom_z.get().addMValue(15)
rendered_image = self.renderGeometry(geom_z)
assert self.imageCheck(test['name'] + 'ZM',
test['reference_image'], rendered_image)
# test with M
geom_m = get_geom()
geom_m.get().addMValue(15)
rendered_image = self.renderGeometry(geom_m)
assert self.imageCheck(test['name'] + 'M', test['reference_image'],
rendered_image)
def txestGeometryRendering(self):
'''Tests rendering a bunch of different geometries, including bad/odd geometries.'''
empty_multipolygon = QgsMultiPolygon()
empty_multipolygon.addGeometry(QgsPolygon())
empty_polygon = QgsPolygon()
empty_linestring = QgsLineString()
tests = [{'name': 'Point',
'wkt': 'Point (1 2)',
'reference_image': 'point'},
{'name': 'MultiPoint',
'wkt': 'MultiPoint ((10 30),(40 20),(30 10),(20 10))',
'reference_image': 'multipoint'},
{'name': 'LineString',
'wkt': 'LineString (0 0,3 4,4 3)',
'reference_image': 'linestring'},
{'name': 'Empty LineString',
'geom': QgsGeometry(empty_linestring),
'reference_image': 'empty'},
{'name': 'MultiLineString',
'wkt': 'MultiLineString ((0 0, 1 0, 1 1, 2 1, 2 0), (3 1, 5 1, 5 0, 6 0))',
'reference_image': 'multilinestring'},
{'name': 'Polygon',
'wkt': 'Polygon ((0 0, 10 0, 10 10, 0 10, 0 0),(5 5, 7 5, 7 7 , 5 7, 5 5))',
'reference_image': 'polygon'},
{'name': 'Empty Polygon',
'geom': QgsGeometry(empty_polygon),
'reference_image': 'empty'},
{'name': 'MultiPolygon',
'wkt': 'MultiPolygon (((0 0, 1 0, 1 1, 2 1, 2 2, 0 2, 0 0)),((4 0, 5 0, 5 2, 3 2, 3 1, 4 1, 4 0)))',
'reference_image': 'multipolygon'},
{'name': 'Empty MultiPolygon',
'geom': QgsGeometry(empty_multipolygon),
'reference_image': 'empty'},
{'name': 'CircularString',
'wkt': 'CIRCULARSTRING(268 415,227 505,227 406)',
'reference_image': 'circular_string'},
{'name': 'CompoundCurve',
'wkt': 'COMPOUNDCURVE((5 3, 5 13), CIRCULARSTRING(5 13, 7 15, 9 13), (9 13, 9 3), CIRCULARSTRING(9 3, 7 1, 5 3))',
'reference_image': 'compound_curve'},
{'name': 'CurvePolygon',
'wkt': 'CURVEPOLYGON(CIRCULARSTRING(1 3, 3 5, 4 7, 7 3, 1 3))',
'reference_image': 'curve_polygon'},
{'name': 'MultiCurve',
'wkt': 'MultiCurve((5 5,3 5,3 3,0 3),CIRCULARSTRING(0 0, 2 1,2 2))',
'reference_image': 'multicurve'},
{'name': 'CurvePolygon_no_arc', # refs #14028
'wkt': 'CURVEPOLYGON(LINESTRING(1 3, 3 5, 4 7, 7 3, 1 3))',
'reference_image': 'curve_polygon_no_arc'}]
for test in tests:
def get_geom():
if 'geom' not in test:
geom = QgsGeometry.fromWkt(test['wkt'])
assert geom and not geom.isNull(), 'Could not create geometry {}'.format(test['wkt'])
else:
geom = test['geom']
return geom
geom = get_geom()
rendered_image = self.renderGeometry(geom)
assert self.imageCheck(test['name'], test['reference_image'], rendered_image)
# Note - each test is repeated with the same geometry and reference image, but with added
# z and m dimensions. This tests that presence of the dimensions does not affect rendering
# test with Z
geom_z = get_geom()
geom_z.get().addZValue(5)
rendered_image = self.renderGeometry(geom_z)
assert self.imageCheck(test['name'] + 'Z', test['reference_image'], rendered_image)
# test with ZM
geom_z.get().addMValue(15)
rendered_image = self.renderGeometry(geom_z)
assert self.imageCheck(test['name'] + 'ZM', test['reference_image'], rendered_image)
# test with M
geom_m = get_geom()
geom_m.get().addMValue(15)
rendered_image = self.renderGeometry(geom_m)
assert self.imageCheck(test['name'] + 'M', test['reference_image'], rendered_image)
