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scan: enforce max >= min

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This commit is contained in:
Sebastien Bourdeauducq 2015-11-30 20:01:25 +08:00
parent 277e26434f
commit a6f3055cd3
2 changed files with 4 additions and 1 deletions
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1
artiq/gui/scan.py
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@ -38,7 +38,6 @@ class _NoScan(LayoutWidget):
self.value.valueChanged.connect(update)
# TODO: prevent max < min
class _Range(LayoutWidget):
def __init__(self, procdesc, state):
LayoutWidget.__init__(self)

4
artiq/language/scan.py
View File

@ -58,6 +58,8 @@ class LinearScan(ScanObject):
"""A scan object that yields a fixed number of increasing evenly
spaced values in a range."""
def __init__(self, min, max, npoints):
if min > max:
raise ValueError("Scan minimum must be less than maximum")
self.min = min
self.max = max
self.npoints = npoints
@ -85,6 +87,8 @@ class RandomScan(ScanObject):
"""A scan object that yields a fixed number of randomly ordered evenly
spaced values in a range."""
def __init__(self, min, max, npoints, seed=0):
if min > max:
raise ValueError("Scan minimum must be less than maximum")
self.min = min
self.max = max
self.npoints = npoints