def test_lines(self):
"""Test lines not aligned with axes for 8 slopes and directions"""
row0, col0 = 1, 1
dy, dx = 3, 5
ref_coords = numpy.array(
[(0, 0), (1, 1), (1, 2), (2, 3), (2, 4), (3, 5)])
# Build lines for the 8 octants from this coordinantes
lines = { # name: (drow, dcol, ref_coords)
'1st octant': (dy, dx, ref_coords),
'2nd octant': (dx, dy, ref_coords[:, (1, 0)]), # invert x and y
'3rd octant': (dx, -dy, ref_coords[:, (1, 0)] * (1, -1)),
'4th octant': (dy, -dx, ref_coords * (1, -1)),
'5th octant': (-dy, -dx, ref_coords * (-1, -1)),
'6th octant': (-dx, -dy, ref_coords[:, (1, 0)] * (-1, -1)),
'7th octant': (-dx, dy, ref_coords[:, (1, 0)] * (-1, 1)),
'8th octant': (-dy, dx, ref_coords * (-1, 1))
}
# Test with different starting points with positive and negative coords
for row0, col0 in ((0, 0), (2, 3), (-4, 1), (-5, -6), (8, -7)):
for name, (drow, dcol, ref_coords) in lines.items():
row1 = row0 + drow
col1 = col0 + dcol
# Transpose from ((row0, col0), ...) to (rows, cols)
ref_coords = numpy.transpose(ref_coords + (row0, col0))
with self.subTest(msg=name,
pt0=(row0, col0), pt1=(row1, col1)):
result = shapes.draw_line(row0, col0, row1, col1)
self.assertTrue(self.isEqual(name, result, ref_coords))
def test_lines(self):
"""Test lines not aligned with axes for 8 slopes and directions"""
row0, col0 = 1, 1
dy, dx = 3, 5
ref_coords = numpy.array([(0, 0), (1, 1), (1, 2), (2, 3), (2, 4),
(3, 5)])
# Build lines for the 8 octants from this coordinantes
lines = { # name: (drow, dcol, ref_coords)
'1st octant': (dy, dx, ref_coords),
'2nd octant': (dx, dy, ref_coords[:, (1, 0)]), # invert x and y
'3rd octant': (dx, -dy, ref_coords[:, (1, 0)] * (1, -1)),
'4th octant': (dy, -dx, ref_coords * (1, -1)),
'5th octant': (-dy, -dx, ref_coords * (-1, -1)),
'6th octant': (-dx, -dy, ref_coords[:, (1, 0)] * (-1, -1)),
'7th octant': (-dx, dy, ref_coords[:, (1, 0)] * (-1, 1)),
'8th octant': (-dy, dx, ref_coords * (-1, 1))
}
# Test with different starting points with positive and negative coords
for row0, col0 in ((0, 0), (2, 3), (-4, 1), (-5, -6), (8, -7)):
for name, (drow, dcol, ref_coords) in lines.items():
row1 = row0 + drow
col1 = col0 + dcol
# Transpose from ((row0, col0), ...) to (rows, cols)
ref_coords = numpy.transpose(ref_coords + (row0, col0))
with self.subTest(msg=name, pt0=(row0, col0),
pt1=(row1, col1)):
result = shapes.draw_line(row0, col0, row1, col1)
self.assertTrue(self.isEqual(name, result, ref_coords))
def test_aligned_lines(self):
"""Test drawing horizontal, vertical and diagonal lines"""
lines = { # test_name: (drow, dcol)
'Horizontal line, col0 < col1': (0, 10),
'Horizontal line, col0 > col1': (0, -10),
'Vertical line, row0 < row1': (10, 0),
'Vertical line, row0 > row1': (-10, 0),
'Diagonal col0 < col1 and row0 < row1': (10, 10),
'Diagonal col0 < col1 and row0 > row1': (-10, 10),
'Diagonal col0 > col1 and row0 < row1': (10, -10),
'Diagonal col0 > col1 and row0 > row1': (-10, -10),
}
row0, col0 = 1, 2 # Start point
for test_name, (drow, dcol) in lines.items():
row1 = row0 + drow
col1 = col0 + dcol
with self.subTest(msg=test_name, drow=drow, dcol=dcol):
# Build reference coordinates from drow and dcol
if drow == 0:
rows = row0 * numpy.ones(abs(dcol) + 1)
else:
step = 1 if drow > 0 else -1
rows = row0 + numpy.arange(0, drow + step, step)
if dcol == 0:
cols = col0 * numpy.ones(abs(drow) + 1)
else:
step = 1 if dcol > 0 else -1
cols = col0 + numpy.arange(0, dcol + step, step)
ref_coords = rows, cols
result = shapes.draw_line(row0, col0, row1, col1)
self.assertTrue(self.isEqual(test_name, result, ref_coords))
def test_aligned_lines(self):
"""Test drawing horizontal, vertical and diagonal lines"""
lines = { # test_name: (drow, dcol)
'Horizontal line, col0 < col1': (0, 10),
'Horizontal line, col0 > col1': (0, -10),
'Vertical line, row0 < row1': (10, 0),
'Vertical line, row0 > row1': (-10, 0),
'Diagonal col0 < col1 and row0 < row1': (10, 10),
'Diagonal col0 < col1 and row0 > row1': (-10, 10),
'Diagonal col0 > col1 and row0 < row1': (10, -10),
'Diagonal col0 > col1 and row0 > row1': (-10, -10),
}
row0, col0 = 1, 2 # Start point
for test_name, (drow, dcol) in lines.items():
row1 = row0 + drow
col1 = col0 + dcol
with self.subTest(msg=test_name, drow=drow, dcol=dcol):
# Build reference coordinates from drow and dcol
if drow == 0:
rows = row0 * numpy.ones(abs(dcol) + 1)
else:
step = 1 if drow > 0 else -1
rows = row0 + numpy.arange(0, drow + step, step)
if dcol == 0:
cols = col0 * numpy.ones(abs(drow) + 1)
else:
step = 1 if dcol > 0 else -1
cols = col0 + numpy.arange(0, dcol + step, step)
ref_coords = rows, cols
result = shapes.draw_line(row0, col0, row1, col1)
self.assertTrue(self.isEqual(test_name, result, ref_coords))
def updateLine(self, level, row0, col0, row1, col1, width, mask=True):
"""Mask/Unmask a line of the given mask level.
:param int level: Mask level to update.
:param int row0: Row of the starting point.
:param int col0: Column of the starting point.
:param int row1: Row of the end point.
:param int col1: Column of the end point.
:param int width: Width of the line in mask array unit.
:param bool mask: True to mask (default), False to unmask.
"""
rows, cols = shapes.draw_line(row0, col0, row1, col1, width)
self.updatePoints(level, rows, cols, mask)
def updateLine(self, level, row0, col0, row1, col1, width, mask=True):
"""Mask/Unmask a line of the given mask level.
:param int level: Mask level to update.
:param int row0: Row of the starting point.
:param int col0: Column of the starting point.
:param int row1: Row of the end point.
:param int col1: Column of the end point.
:param int width: Width of the line in mask array unit.
:param bool mask: True to mask (default), False to unmask.
"""
rows, cols = shapes.draw_line(row0, col0, row1, col1, width)
self.updatePoints(level, rows, cols, mask)
def test_width(self):
"""Test of line width"""
lines = { # test_name: row0, col0, row1, col1, width, ref
'horizontal w=2':
(0, 0, 0, 1, 2, ((0, 1, 0, 1),
(0, 0, 1, 1))),
'horizontal w=3':
(0, 0, 0, 1, 3, ((-1, 0, 1, -1, 0, 1),
(0, 0, 0, 1, 1, 1))),
'vertical w=2':
(0, 0, 1, 0, 2, ((0, 0, 1, 1),
(0, 1, 0, 1))),
'vertical w=3':
(0, 0, 1, 0, 3, ((0, 0, 0, 1, 1, 1),
(-1, 0, 1, -1, 0, 1))),
'diagonal w=3':
(0, 0, 1, 1, 3, ((-1, 0, 1, 0, 1, 2),
(0, 0, 0, 1, 1, 1))),
'1st octant w=3':
(0, 0, 1, 2, 3,
numpy.array(((-1, 0), (0, 0), (1, 0),
(0, 1), (1, 1), (2, 1),
(0, 2), (1, 2), (2, 2))).T),
'2nd octant w=3':
(0, 0, 2, 1, 3,
numpy.array(((0, -1), (0, 0), (0, 1),
(1, 0), (1, 1), (1, 2),
(2, 0), (2, 1), (2, 2))).T),
}
for test_name, (row0, col0, row1, col1, width, ref) in lines.items():
with self.subTest(msg=test_name,
pt0=(row0, col0),
pt1=(row1, col1),
width=width):
result = shapes.draw_line(row0, col0, row1, col1, width)
self.assertTrue(self.isEqual(test_name, result, ref))
def test_width(self):
"""Test of line width"""
lines = { # test_name: row0, col0, row1, col1, width, ref
'horizontal w=2':
(0, 0, 0, 1, 2, ((0, 1, 0, 1),
(0, 0, 1, 1))),
'horizontal w=3':
(0, 0, 0, 1, 3, ((-1, 0, 1, -1, 0, 1),
(0, 0, 0, 1, 1, 1))),
'vertical w=2':
(0, 0, 1, 0, 2, ((0, 0, 1, 1),
(0, 1, 0, 1))),
'vertical w=3':
(0, 0, 1, 0, 3, ((0, 0, 0, 1, 1, 1),
(-1, 0, 1, -1, 0, 1))),
'diagonal w=3':
(0, 0, 1, 1, 3, ((-1, 0, 1, 0, 1, 2),
(0, 0, 0, 1, 1, 1))),
'1st octant w=3':
(0, 0, 1, 2, 3,
numpy.array(((-1, 0), (0, 0), (1, 0),
(0, 1), (1, 1), (2, 1),
(0, 2), (1, 2), (2, 2))).T),
'2nd octant w=3':
(0, 0, 2, 1, 3,
numpy.array(((0, -1), (0, 0), (0, 1),
(1, 0), (1, 1), (1, 2),
(2, 0), (2, 1), (2, 2))).T),
}
for test_name, (row0, col0, row1, col1, width, ref) in lines.items():
with self.subTest(msg=test_name,
pt0=(row0, col0), pt1=(row1, col1), width=width):
result = shapes.draw_line(row0, col0, row1, col1, width)
self.assertTrue(self.isEqual(test_name, result, ref))
def test_noline(self):
"""Test pt0 == pt1"""
for width in range(4):
with self.subTest(width=width):
result = shapes.draw_line(1, 2, 1, 2, width)
self.assertTrue(numpy.all(numpy.equal(result, [(1, ), (2, )])))
def test_noline(self):
"""Test pt0 == pt1"""
for width in range(4):
with self.subTest(width=width):
result = shapes.draw_line(1, 2, 1, 2, width)
self.assertTrue(numpy.all(numpy.equal(result, [(1,), (2,)])))
