I am using the function vlines() to create a number of lines at
sampling points below my sinewave (top right graph)
tt = axUpper2.vlines(t[xi],result, result[xi] )
were t is the time along x axis, and xi is the sample points and
'result' is the sine
This returns a "matplotlib.collections.LineCollection"
<matplotlib.collections.LineCollection instance at 0x01FA9E68>
I also have a slider for changing some input parameters, which will
affect both amplitude and offset of 'result', .. however once things
change I cannot work out how to change the data in my line collection. I
need to get rid of the old lines, and create a new set or update the
values in the current lines based on the new "result".
It's not obvious to me how I should go about it.
my first instinct was to try and iterate on the linecollection
for l in tt:
"TypeError: iteration over non-sequence"
I found out a collection is not iterable
I can call vlines() on each change, ..but I still don't know how to get
rid of the old lines.
Can someone give me a pointer to functions I should look into, or make
suggestion how to work this another way?.
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