convert a masked array to a non masked one?

Community matplotlib-users
1

Hi all,

Another noob question here. I have a large masked array that I am plotting
with "contourf" and because of the masked array i am getting jagged edges.
If i could replace the masked data with a value that I supply then it will
interpolate and give me the nice feathered edges that I need.

Now my question is, what is the fastest way to add the supplied data to the
masked areas? The only way I can think is to just iterate through the whole
array and set the value of the masked areas to the value I want but I guess
there should be other faster ways to do that.

Any help is greatly appreciated!

Thanks,
Anton

···

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2

I guess you want this.

http://docs.scipy.org/doc/numpy/reference/generated/numpy.ma.filled.html#numpy.ma.filled

-JJ

···

On Sat, Apr 11, 2009 at 3:36 PM, antonv <vasilescu_anton@...9...> wrote:

Hi all,

Another noob question here. I have a large masked array that I am plotting
with "contourf" and because of the masked array i am getting jagged edges.
If i could replace the masked data with a value that I supply then it will
interpolate and give me the nice feathered edges that I need.

Now my question is, what is the fastest way to add the supplied data to the
masked areas? The only way I can think is to just iterate through the whole
array and set the value of the masked areas to the value I want but I guess
there should be other faster ways to do that.

Any help is greatly appreciated!

Thanks,
Anton
--
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3

Thanks, that's exactly what i was looking for!

Anton

Jae-Joon Lee wrote:

···

I guess you want this.

numpy.ma.filled — NumPy v1.26 Manual

-JJ

On Sat, Apr 11, 2009 at 3:36 PM, antonv <vasilescu_anton@...9...> wrote:

Hi all,

Another noob question here. I have a large masked array that I am
plotting
with "contourf" and because of the masked array i am getting jagged
edges.
If i could replace the masked data with a value that I supply then it
will
interpolate and give me the nice feathered edges that I need.

Now my question is, what is the fastest way to add the supplied data to
the
masked areas? The only way I can think is to just iterate through the
whole
array and set the value of the masked areas to the value I want but I
guess
there should be other faster ways to do that.

Any help is greatly appreciated!

Thanks,
Anton
--
View this message in context:
http://www.nabble.com/convert-a-masked-array-to-a-non-masked-one--tp23004653p23004653.html
Sent from the matplotlib - users mailing list archive at Nabble.com.

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