def test_ring_intersections(self):
# no intersections
g = QgsGeometry.fromWkt(
"Polygon ((0 0, 10 0, 10 10, 0 10, 0 0),(1 1, 5 1, 1 9, 1 1), (6 9, 2 9, 6 1, 6 9))"
)
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 0)
# two interior rings intersecting
g = QgsGeometry.fromWkt(
"Polygon ((0 0, 10 0, 10 10, 0 10, 0 0),(1 1, 5 1, 1 9, 1 1), (2 2, 5 2, 2 9, 2 2))"
)
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 2)
self.assertEqual(spy[0][0].where(), QgsPointXY(4.5, 2))
self.assertEqual(
spy[0][0].what(),
'segment 1 of ring 1 of polygon 0 intersects segment 0 of ring 2 of polygon 0 at 4.5, 2'
)
self.assertEqual(spy[1][0].where(), QgsPointXY(2, 7))
self.assertEqual(
spy[1][0].what(),
'segment 1 of ring 1 of polygon 0 intersects segment 2 of ring 2 of polygon 0 at 2, 7'
)
def test_ring_closed(self):
# valid ring
g = QgsGeometry.fromWkt("Polygon ((0 0, 10 0, 10 10, 0 0))")
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 0)
# not closed
g = QgsGeometry.fromWkt("Polygon ((0 0, 10 0, 10 10, 1 1))")
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 1)
self.assertEqual(spy[0][0].where(), QgsPointXY(0, 0))
self.assertEqual(spy[0][0].what(), 'ring 0 not closed')
g = QgsGeometry.fromWkt(
"Polygon ((0 0, 10 0, 10 10, 0 0),(1 1, 2 1, 2 2, 1.1 1))")
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 1)
self.assertEqual(spy[0][0].where(), QgsPointXY(1, 1))
self.assertEqual(spy[0][0].what(), 'ring 1 not closed')
g = QgsGeometry.fromWkt(
"Polygon ((0 0, 10 0, 10 10, 0 10, 0 0),(1 1, 2 1, 2 2, 1 1),(3 3, 3 4, 4 4, 3.1 3))"
)
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 1)
self.assertEqual(spy[0][0].where(), QgsPointXY(3, 3))
self.assertEqual(spy[0][0].what(), 'ring 2 not closed')
# not closed but 2d closed
g = QgsGeometry.fromWkt(
"POLYGONZ((1 1 0, 1 2 1, 2 2 2, 2 1 3, 1 1 4))")
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 1)
self.assertEqual(spy[0][0].where(), QgsPointXY(1, 1))
self.assertEqual(spy[0][0].what(),
'ring 0 not closed, Z mismatch: 0 vs 4')
def test_multi_part_curve(self):
# A circle inside another one
g = QgsGeometry.fromWkt("MultiSurface (CurvePolygon (CircularString (0 5, 5 0, 0 -5, -5 0, 0 5)),CurvePolygon (CircularString (100 1, 100 0, 100 -1, 99 0, 100 1)))")
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 0)
# converted as a straight polygon
g.convertToStraightSegment()
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 0)
def test_linestring_duplicate_nodes(self):
g = QgsGeometry.fromWkt("LineString (1 1, 1 1, 1 1, 1 2, 1 3, 1 3, 1 3, 1 4, 1 5, 1 6, 1 6)")
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 3)
self.assertEqual(spy[0][0].where(), QgsPointXY(1, 6))
self.assertEqual(spy[0][0].what(), 'line 1 contains 2 duplicate node(s) starting at vertex 10')
self.assertEqual(spy[1][0].where(), QgsPointXY(1, 3))
self.assertEqual(spy[1][0].what(), 'line 1 contains 3 duplicate node(s) starting at vertex 5')
self.assertEqual(spy[2][0].where(), QgsPointXY(1, 1))
self.assertEqual(spy[2][0].what(), 'line 1 contains 3 duplicate node(s) starting at vertex 1')
def test_multi_part_curve_nested_shell(self):
# A circle inside another one
g = QgsGeometry.fromWkt("MultiSurface (CurvePolygon (CircularString (0 5, 5 0, 0 -5, -5 0, 0 5)),CurvePolygon (CircularString (0 1, 1 0, 0 -1, -1 0, 0 1)))")
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 1)
self.assertEqual(spy[0][0].where(), QgsPointXY())
self.assertEqual(spy[0][0].what(), 'Polygon 1 lies inside polygon 0')
# converted as a straight polygon
g.convertToStraightSegment()
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 1)
self.assertEqual(spy[0][0].where(), QgsPointXY())
self.assertEqual(spy[0][0].what(), 'Polygon 1 lies inside polygon 0')
def test_line_vertices(self):
# valid line
g = QgsGeometry.fromWkt("LineString (0 0, 10 0)")
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 0)
# not enough vertices
g = QgsGeometry.fromWkt("LineString (1 0)")
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 1)
self.assertEqual(spy[0][0].where(), QgsPointXY())
self.assertEqual(spy[0][0].what(), 'line 0 with less than two points')
g = QgsGeometry.fromWkt("LineString ()")
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 1)
self.assertEqual(spy[0][0].where(), QgsPointXY())
self.assertEqual(spy[0][0].what(), 'line 0 with less than two points')
def test_ring_vertex_count(self):
# valid ring
g = QgsGeometry.fromWkt("Polygon ((0 0, 10 0, 10 10, 0 0))")
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 0)
# not enough vertices
g = QgsGeometry.fromWkt("Polygon ((0 0, 10 0, 10 10))")
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 1)
self.assertEqual(spy[0][0].where(), QgsPointXY())
self.assertEqual(spy[0][0].what(), 'ring 0 with less than four points')
g = QgsGeometry.fromWkt("Polygon ((0 0, 10 0, 0 0))")
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 1)
self.assertEqual(spy[0][0].where(), QgsPointXY())
self.assertEqual(spy[0][0].what(), 'ring 0 with less than four points')
g = QgsGeometry.fromWkt("Polygon ((0 0, 10 0))")
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 1)
self.assertEqual(spy[0][0].where(), QgsPointXY())
self.assertEqual(spy[0][0].what(), 'ring 0 with less than four points')
g = QgsGeometry.fromWkt("Polygon ((0 0))")
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 1)
self.assertEqual(spy[0][0].where(), QgsPointXY())
self.assertEqual(spy[0][0].what(), 'ring 0 with less than four points')
g = QgsGeometry.fromWkt("Polygon (())")
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 0)
g = QgsGeometry.fromWkt("Polygon ((0 0, 10 0, 10 10, 0 0),(1 1, 2 1, 2 2))")
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 1)
self.assertEqual(spy[0][0].where(), QgsPointXY())
self.assertEqual(spy[0][0].what(), 'ring 1 with less than four points')
g = QgsGeometry.fromWkt("Polygon ((0 0, 10 0, 10 10, 0 0),(1 1, 2 1, 2 2, 1 1))")
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 0)
g = QgsGeometry.fromWkt("Polygon ((0 0, 10 0, 10 10, 0 10, 0 0),(1 1, 2 1, 2 2, 1 1),(3 3, 3 4, 4 4))")
validator = QgsGeometryValidator(g)
spy = QSignalSpy(validator.errorFound)
validator.run()
self.assertEqual(len(spy), 1)
self.assertEqual(spy[0][0].where(), QgsPointXY())
self.assertEqual(spy[0][0].what(), 'ring 2 with less than four points')
