Re: [Matplotlib-users] Patch + facecolors

[Diego A. <die...@gm...>]

Dear all, Dear Benjamin, Dear Sappy85,

probably I miss the meaning of structured and not-structured grid. In my
grid I have only rectangular element, but they are not regular.
Here an example. In what follows you can see the x and y vector of the
point of one rectangle:

X=0.1000 0.5950 0.5659 0.0951
Y=0.0 0.0 0.1839 0.0309

I would like to do as the Ben's example (
http://matplotlib.org/examples/mplot3d/trisurf3d_demo.html), but with non
regular rectangles.
Moreover, in my my case each point has a different value.

Am I asking to much?
Thanks


Diego


On 5 December 2014 at 17:48, Benjamin Root <ben...@ou...> wrote:

> I am a bit confused. Your variable is "TRI", but you keep saying
> rectangles. You are also referring to unstructured rectangles, which makes
> zero sense to me. Do you mean triangles?
>
> If you, matplotlib has the "tri-" family of functions and a whole module
> devoted to triangulation-related tasks:
> http://matplotlib.org/api/tri_api.html
> http://matplotlib.org/examples/pylab_examples/tricontour_demo.html
>
> Even the mplot3d toolkit has (limited) support:
> http://matplotlib.org/examples/mplot3d/trisurf3d_demo.html
>
> I hope that helps!
> Ben Root
>
>
> On Fri, Dec 5, 2014 at 11:38 AM, Sappy85 <rob...@gm...> wrote:
>
>> Hi diedro,
>>
>> try something like this:
>>
>> import matplotlib.patches as patches
>> import matplotlib.pyplot as plt
>>
>> fig    = plt.figure()
>> ax    = fig.add_subplot(111)
>> verts = [0.2,0.8], [0.1,0.5], [0.7,0.1]
>> poly  = patches.Polygon(verts, ec='r', fc='g')
>>
>> ax.add_patch(poly)
>> plt.show()
>>
>> <http://matplotlib.1069221.n5.nabble.com/file/n44560/help3.png>
>>
>> or this:
>>
>> import numpy as np
>> import matplotlib
>> matplotlib.use('Agg')
>>
>> from matplotlib.patches import Polygon
>> from matplotlib.collections import PatchCollection
>> import matplotlib.pyplot as plt
>>
>> fig, ax = plt.subplots()
>>
>> patches = []
>> x       = np.random.rand(3)
>> y       = np.random.rand(3)
>>
>> for i in range(3):
>>     polygon = Polygon(np.random.rand(3,2), True)
>>     patches.append(polygon)
>>
>>
>> colors = 100*np.random.rand(len(patches))
>> p = PatchCollection(patches, cmap=matplotlib.cm.jet, alpha=0.4)
>> p.set_array(np.array(colors))
>> ax.add_collection(p)
>> plt.colorbar(p)
>> plt.grid()
>> plt.savefig('/var/www/img/help2.png', bbox_inches='tight',pad_inches=0.05)
>>
>> <http://matplotlib.1069221.n5.nabble.com/file/n44560/help2.png>
>>
>> Regards,
>> Sappy85
>>
>>
>>
>>
>> --
>> View this message in context:
>> http://matplotlib.1069221.n5.nabble.com/Patch-facecolors-tp44558p44560.html
>> Sent from the matplotlib - users mailing list archive at Nabble.com.
>>
>>
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>
>
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