def test_revert_to_default(self):
scales = [FixedScale(resolution = 1.0),
FixedScale(resolution = 10.0),
FixedScale(resolution = 100.0)]
ticker = ScaleSystem(*scales)
ticks = ticker.ticks(2.0, 3.0, 10)
self.check_ticks(ticks, frange(2.0, 3.0, 0.1))
def test_fixed_scales(self):
scales = [FixedScale(resolution = 1.0),
FixedScale(resolution = 10.0),
FixedScale(resolution = 100.0)]
ticker = ScaleSystem(default_scale=None, *scales)
self.check_ticks(ticker.ticks(5, 35, 3), (10.0, 20.0, 30.0))
self.check_ticks(ticker.ticks(5, 35, 20), frange(5.0, 35.0, 1.0))
self.check_ticks(ticker.ticks(5, 614, 10), (100, 200, 300, 400, 500, 600))
def test_format_small_numbers(self):
fmt = BasicFormatter()
numlabels = 8
# test with small numbers
scale = FixedScale(resolution=1e-4)
start, end = 5e-5, 8.5e-4
ticks = scale.ticks(start, end, numlabels)
labels = fmt.format(ticks, numlabels, None)
desired = [str(float(i)) + "e-4" for i in range(1, 9)]
self.check_labels(labels, desired)
def test_format_small_numbers(self):
fmt = BasicFormatter()
numlabels = 8
# test with small numbers
scale = FixedScale(resolution = 1e-4)
start, end = 5e-5, 8.5e-4
ticks = scale.ticks(start, end, numlabels)
labels = fmt.format(ticks, numlabels, None)
desired = [str(float(i))+"e-4" for i in range(1, 9)]
self.check_labels(labels, desired)
def test_format(self):
fmt = BasicFormatter()
# test with a fixed scale
scale = FixedScale(resolution=1.0)
start, end = 12.0, 18.0
numlabels = 8
ticks = scale.ticks(start, end, numlabels)
labels = fmt.format(ticks, numlabels, None)
# desired = [str(float(x)) for x in range(12, 19)]
## This test fails when desired is created with str(float(x)).
## The format function returns "12",...,"18", not "12.0",...,"18.0".
desired = ["12", "13", "14", "15", "16", "17", "18"]
self.check_labels(labels, desired)
def test_format(self):
fmt = BasicFormatter()
# test with a fixed scale
scale = FixedScale(resolution = 1.0)
start, end = 12.0, 18.0
numlabels = 8
ticks = scale.ticks(start, end, numlabels)
labels = fmt.format(ticks, numlabels, None)
# desired = [str(float(x)) for x in range(12, 19)]
## This test fails when desired is created with str(float(x)).
## The format function returns "12",...,"18", not "12.0",...,"18.0".
desired = ["12","13","14","15","16","17","18"]
self.check_labels(labels, desired)
def test_format(self):
test_ranges = [(12003, 12015, 1.0), (1.2003, 1.2015, 1e-4),
(-1.2015, -1.2003, 1e-4)]
for start, end, resol in test_ranges:
fmt = OffsetFormatter()
fmt.use_offset = True
fmt.offset_format = "decimal"
fmt.end_label_format = "sci"
scale = FixedScale(resolution=resol)
numlabels = 12
ticks = scale.ticks(start, end, numlabels)
print "range:", start, end
labels = fmt.format(ticks, numlabels, None)
print "Labels:", labels, "\n"
print "estimated width:", fmt.estimate_width(start, end, numlabels)
print "actual width:", sum(map(len, labels))
def test_format(self):
test_ranges = [(12003, 12015, 1.0),
(1.2003, 1.2015, 1e-4),
(-1.2015, -1.2003, 1e-4)]
for start, end, resol in test_ranges:
fmt = OffsetFormatter()
fmt.use_offset=True
fmt.offset_format = "decimal"
fmt.end_label_format = "sci"
scale = FixedScale(resolution = resol)
numlabels = 12
ticks = scale.ticks(start, end, numlabels)
print "range:", start, end
labels = fmt.format(ticks, numlabels, None)
print "Labels:", labels, "\n"
print "estimated width:", fmt.estimate_width(start, end, numlabels)
print "actual width:", sum(map(len, labels))
def test_scale_system(self):
scale = ScaleSystem(FixedScale(resolution=1.0),
FixedScale(resolution=2.5),
FixedScale(resolution=5.0),
FixedScale(resolution=10.0),
FixedScale(resolution=20.0),
FixedScale(resolution=100.0))
test_intervals = (
(1, 100, 200),
(1, 100, 80),
(1, 100, 40),
(1, 100, 20),
(1, 100, 5),
(1, 10, 100),
(1, 10, 50),
(1, 10, 20),
)
print
for start, end, width in test_intervals:
labels = scale.labels(start, end, char_width=width)
print "(%d,%d)" % (start, end), " avail:", width,
print " used:", sum([len(x[1]) for x in labels]),
print zip(*labels)[1]
return
