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question on clearing axis (ax.clear()) #14

@montanaviking

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@montanaviking

I am noticing the following warning messages when I clear data from a Smith chart plot using ax.clear().
/usr/local/lib/python3.4/dist-packages/smithplot/smithaxes.py:1060: DeprecationWarning: object of type <class 'numpy.float64'> cannot be safely interpreted as an integer.
for xs in np.linspace(x0, x1, x_div + 1)[1:]:
/usr/local/lib/python3.4/dist-packages/smithplot/smithaxes.py:1064: DeprecationWarning: object of type <class 'numpy.float64'> cannot be safely interpreted as an integer.
for ys in np.linspace(y0, y1, y_div + 1)[1:]:
#####################################################################################################################

My code follows below and removing the ax.clear() removed the above warning messages.
replacing ax.clear() with ax.cla() gave the same results.
#############################################################

plot points and/or curves on Smith Chart

def plot_smith(data,canvas=None,figure=None,datatype="reflection",plottype="points",title="",interpolate=0,pointsonly=True):
Z0=50.
if canvas==None or figure==None: raise ValueError("ERROR! One of canvas or figure missing")
if datatype.lower()=="reflection" or datatype.lower()=="r": datatype=SmithAxes.S_PARAMETER
elif datatype.lower()=="impedance" or datatype.lower()=="z": datatype=SmithAxes.Z_PARAMETER
elif datatype.lower()=="admittance" or datatype.lower()=="y": datatype=SmithAxes.Y_PARAMETER
#fig=FigureCanvas(figure=plt.figure(1,figsize=(8,8),frameon=False))
ax = plt.subplot(1, 1, 1, projection='smith')
ax.clear()
if title!="": ax.set_title(title)
data=np.multiply(Z0,data)
if len(data)>0:
if datatype==SmithAxes.Z_PARAMETER:
if pointsonly: # plot data as single points
for d in data:
ax.plot(d,interpolate=0,datatype=datatype)
else: # plot a line
ax.plot(np.multiply(Z0,data),interpolate=interpolate,datatype=datatype)
elif datatype==SmithAxes.S_PARAMETER:
if pointsonly: # plot data as single points
for d in data:
ax.plot(d,interpolate=0,datatype=datatype)
else:
ax.plot(data,interpolate=interpolate,datatype=datatype)
#ax.hold(False)
canvas.draw()

#####################################################################################################################

if I remove the ax.clear() line

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