Re: Best way for rotating a matrix of data?

2010-09-23 Thread Raphaël Plasson
On Sep 23, 1:50 am, Nobody wrote: > You can use arrays as indices, so applying a transformation to a set of > index arrays (e.g. np.indices) then using those as indices is equivalent > to applying a spatial transform to the data. I am not sure that this would do the trick, e.g. for extracting a

Re: Best way for rotating a matrix of data?

2010-09-22 Thread Nobody
On Tue, 21 Sep 2010 19:38:06 -0700, Raphaël Plasson wrote: > Actually, I more precisely extract my 2D array from much higher > dimensions data (i.e. 10-20 fields of different data in 3 dimensions > of space+1 dimension of time), contained in a hdf5 file. I typically > would like to extract arbitra

Best way for rotating a matrix of data?

2010-09-21 Thread Raphaël Plasson
Hello, after some computations, I obtain a 2D matrix of data, in a numpy array. I can easily plot them using pyplot, and can easily extract either vertical or horizontal slices by plotting a row or a column of this matrix. I would like to be able to plot slices form this data array, but with an ar