Re: [Matplotlib-users] imshow for .png- low resultion

[Asma Riyaz]

Thank you for replying!!

The tree I generate is not based on clustering of matrices but rather on
sequence data and hence the tree generation is different in this case. I am
still looking into the seaborn project if it can lead me anywhere.

Thanks
Asma


On Wed, Mar 5, 2014 at 3:34 PM, Paul Hobson <pmhob...@gmail.com> wrote:

> Olga Botnivik is doing some work with these types of figures in her fork
> of the seaborn project.
> Example here: http://nbviewer.ipython.org/gist/olgabot/8341784
> Link to the PR in github: https://github.com/mwaskom/seaborn/pull/73
>
> Those might be a good place to start.
>
>
>
> On Wed, Mar 5, 2014 at 12:19 PM, Asma Riyaz <asmariya...@gmail.com> wrote:
>
>> Hi
>> I am trying to merge a heat map(matplotlib) with a tree(.png), but the
>> .png does not plot as needed or for that matter cannot be seen easily. Here
>> is my code:
>>
>> ####### CODE
>>  cmap = mpl.cm.hot
>>     if outlier==0:
>>        threshold=1
>>     else:
>>        threshold=outlier-0.01
>>
>>     fig = plt.figure(figsize=(25,25))
>>     plt.suptitle(file_handle.replace('.csv',''),fontsize=22)
>>     cmap.set_over('green')
>>     cmap.set_under('grey')
>>     gs=gridspec.GridSpec(1, 2,height_ratios=[1,1,-2,2]
>> ,width_ratios=[1,1,-2,2])
>>     phyl_ax=plt.subplot(gs[0],frameon=False)
>>     ht_ax=plt.subplot(gs[1])
>>     ##gs.tight_layout(fig, rect=[1,1,2,2])
>>     ht_ax.set_xlim(0,35)
>>     ht_ax.set_ylim(0,35)
>>     ##ht_ax.grid(color='white',linestyle='-',linewidth=1)
>>     fig.subplots_adjust(hspace=0)
>>     cb_ax,kw =mpl.colorbar.make_axes(ht_ax, shrink=0.65)
>>
>>
>>     plt.setp(phyl_ax.get_xticklabels(),visible=False)
>>     plt.setp(phyl_ax.get_yticklabels(),visible=False)
>>     plt.setp(ht_ax.get_xticklabels(),visible=True)
>>     plt.setp(ht_ax.get_yticklabels(),visible=True)
>>     plt.setp(phyl_ax.get_xticklines(),visible=False)
>>     plt.setp(phyl_ax.get_yticklines(),visible=False)
>>     plt.setp(ht_ax.get_xticklines(),visible=True)
>>     plt.setp(ht_ax.get_yticklines(),visible=True)
>>
>>
>>     img = ht_ax.imshow(data, cmap=cmap,
>> interpolation='none',vmax=threshold)
>>     cb = mpl.colorbar.ColorbarBase(ax=cb_ax,cmap=cmap,
>> extend='neither',**kw)
>>     cb.cmap.set_over('green')
>>     image_file =
>> cbook.get_sample_data('/home/asmariyaz/Desktop/mytree.png',asfileobj=False)
>>     image = plt.imread(image_file)
>>
>> How can I make the resolution of the .png image better OR for that matter
>> is there a better solution to merge these together?
>>
>> I am attaching the plot I am getting with this code- (WrongTree.pdf)
>>
>> Thanks
>> Asma
>>
>>
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>

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