def grader(b1, b2, b3, lw, rw, blk, sl, force, plate, iso):
bar1 = PolyLine.PolyLines(b1)
bar2 = PolyLine.PolyLines(b2)
bar3 = PolyLine.PolyLines(b3)
block = Polygon.Polygons(blk)
iso_bub = Polygon.Polygons(iso)
block_poly = block.polygons[0]
if not iso_bub.get_polygon_count() == 1:
return False, "There should be one isolation bubble."
iso_poly = iso_bub.polygons[0]
bar1_line = bar1.getPolyLineAsSegments(0).segments[0]
bar2_line = bar2.getPolyLineAsSegments(0).segments[0]
if len(iso_bub.get_intersections_with_polygon_boundary(
bar1_line, iso_poly)) != 1:
return False, "Iso bubble should cut the bars"
if len(iso_bub.get_intersections_with_polygon_boundary(
bar2_line, iso_poly)) != 1:
return False, "Iso bubble should cut the bars"
if iso_bub.contains_polygon(block_poly) == None:
return False, "Iso bubble should contain the block"
if not iso_bub.point_is_on_boundary([3, 0.6]):
return False, "Iso bubble should cut the slider"
return True, "Good job!"
def grader(pl, pg, pt, ls, c, cwm, ccwm):
pl = PolyLine.PolyLines(pl)
pg = Polygon.Polygons(pg)
cls = LineSegment.LineSegments(c)
beam = pl.get_polyline_as_segments(0)
if not pg.get_polygon_count() == 1:
return False, "Did you forget the isolation bubble?"
poly = pg.polygons[0]
beam1 = beam.segments[0]
beam2 = beam.segments[1]
if len(pg.get_intersections_with_polygon_boundary(beam1, poly)) > 0:
return False, "wrong 1"
if len(pg.get_intersections_with_polygon_boundary(beam2, poly)) > 1:
return False, "wrong 2"
if pg.point_is_on_boundary([-2, -1]) == None:
return False, "wrong 3"
if pg.point_is_on_boundary([-3, 2]) == None and pg.point_is_on_boundary([2, -1]) == None:
return False, "wrong 4"
return True, "Good job!"
def test_intersections_with_boundary_true(self):
data = self.load_as_gradeable_collections('polygon_intersection')
d = data[0]
poly = Polygon.Polygons(d['pl'])
intersections = poly.get_intersections_with_boundary([[-2, 0], [0, 2]])
self.assertTrue(len(intersections) > 0)
self.assertEqual(len(intersections[0]), 2)
def test_intersections_with_polygon_boundary_false(self):
data = self.load_as_gradeable_collections('polygon_intersection')
d = data[0]
poly = Polygon.Polygons(d['pl'])
intersections = poly.get_intersections_with_polygon_boundary(
poly.polygons[0], [[-2, 0], [-3, -3]])
self.assertEqual(len(intersections), 0)
def grader(pl, pg, pt, ls, c, cwm, ccwm):
pl = PolyLine.PolyLines(pl)
pg = Polygon.Polygons(pg)
cls = LineSegment.LineSegments(c)
points = GradeableFunction.GradeableFunction(pt)
beam = pl.get_polyline_as_linesegments()
if not pg.get_polygon_count() == 1:
return False, "Did you forget the isolation bubble?"
poly = pg.polygons[0]
beam1 = beam.segments[0]
beam2 = beam.segments[1]
pointA = None
pointB = None
if points.get_number_of_points() > 0:
for point in points.points:
if point.tag_equals('A'):
pointA = point
if point.tag_equals('B'):
pointB = point
if len(pg.get_intersections_with_polygon_boundary(poly, beam1)) > 0:
return False, "Isolation bubble should not cut vertical beam."
if not len(pg.get_intersections_with_polygon_boundary(poly, beam2)) == 1:
return False, "Isolation bubble should only cut the horizontal beam once."
if pg.point_is_on_boundary([-2, -1]) == None:
return False, "Check where the isolation bubble cuts the horizontal beam."
if pg.point_is_on_boundary(pointA) == None and pg.point_is_on_boundary(
pointB) == None:
return False, "Check the isolation bubble containment."
return True, "Good job!"
def test_point_is_on_polygon_boundary_false(self):
data = self.load_as_gradeable_collections('polygon_boundary')
d = data[0]
poly = Polygon.Polygons(d['pl'])
self.assertFalse(
poly.point_is_on_polygon_boundary(poly.polygons[0], [3, 3]))
def test_point_is_on_boundary_true(self):
data = self.load_as_gradeable_collections('polygon_boundary')
d = data[0]
poly = Polygon.Polygons(d['pl'])
self.assertTrue(poly.point_is_on_boundary([0, 1]))
def test_polygon_contains_point_false(self):
data = self.load_as_gradeable_collections('polygon_point')
d = data[0]
poly = Polygon.Polygons(d['pl'])
self.assertFalse(
poly.polygon_contains_polygon(poly.polygons[0], [[3, 3]]))
def test_contains_polygon_true(self):
data = self.load_as_gradeable_collections('polygon_point')
d = data[0]
poly = Polygon.Polygons(d['pl'])
self.assertTrue(poly.contains_polygon([[0, 1]]))
def test_polygon_no_tags(self):
data = self.load_as_gradeable_collections('tag_none')
d = data[0]
pg = Polygon.Polygons(d['pg'])
self.assertIsNone(pg.contains_tag('tag'))
def test_polygon_contains_tag_false(self):
data = self.load_as_gradeable_collections('tag_data')
d = data[0]
pg = Polygon.Polygons(d['pg'])
self.assertIsNone(pg.contains_tag('somethingelse'))
def test_polygon_has_tag_false(self):
data = self.load_as_gradeable_collections('tag_data')
d = data[0]
pg = Polygon.Polygons(d['pg'])
self.assertFalse(pg.polygons[0].tag_equals('somethingelse'))
def test_polygon_has_tag_true(self):
data = self.load_as_gradeable_collections('tag_data')
d = data[0]
pg = Polygon.Polygons(d['pg'])
self.assertTrue(pg.polygons[0].tag_equals('tag'))