I think this wins the "most useless feature of fenics" award.
Martin
On 7 February 2013 15:08, <noreply@xxxxxxxxxxxxx
<mailto:noreply@xxxxxxxxxxxxx>> wrote:
------------------------------------------------------------
revno: 1568
committer: Martin Sandve Alnaes <martinal@xxxxxxxxx
<mailto:martinal@xxxxxxxxx>>
branch nick: work
timestamp: Thu 2013-02-07 15:07:17 +0100
message:
Add ipython svg output for cells interval, triangle and
quadrilateral, just for show.
added:
sandbox/ipytest/
sandbox/ipytest/graph.py
modified:
ufl/geometry.py
--
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=== added directory 'sandbox/ipytest'
=== added file 'sandbox/ipytest/graph.py'
--- sandbox/ipytest/graph.py 1970-01-01 00:00:00 +0000
+++ sandbox/ipytest/graph.py 2013-02-07 14:07:17 +0000
@@ -0,0 +1,39 @@
+
+class A:
+ def _repr_png_(self):
+ import matplotlib.pyplot as plt
+ import networkx as nx
+ G = nx.Graph()
+ G.add_nodes_from([1, 2,3])
+ G.add_edges_from([(1,2),(1,3), (2,3)])
+
+ fig = plt.figure()
+ nx.draw_spring(G)
+
+ #fig, ax = plt.subplots()
+
+ from IPython.core.pylabtools import print_figure
+ data = print_figure(fig, 'png')
+ # We MUST close the figure, otherwise IPython's display
machinery
+ # will pick it up and send it as output, resulting in a
double display
+ plt.close(fig)
+ return data
+
+if 0:
+ # Other way found on internet:
+ import networkx as nx
+ import matplotlib.pyplot as plt
+ import StringIO
+ from matplotlib.figure import Figure
+
+ class MyGraph(nx.Graph):
+ def _repr_svg_(self):
+ plt.ioff() # turn off interactive mode
+ fig = plt.figure(figsize=(2,2))
+ ax = fig.add_subplot(111)
+ nx.draw_shell(self, ax=ax)
+ output = StringIO.StringIO()
+ fig.savefig(output,format='svg')
+ plt.ion() # turn on interactive mode
+ return output.getvalue()
+
=== modified file 'ufl/geometry.py'
--- ufl/geometry.py 2013-01-18 16:32:39 +0000
+++ ufl/geometry.py 2013-02-07 14:07:17 +0000
@@ -483,6 +483,19 @@
def __repr__(self):
return self._repr
+ def _repr_svg_(self):
+ n = self.cellname()
+ svg = '<svg xmlns="http://www.w3.org/2000/svg";
version="1.1">\n<polyline points="%s"
style="fill:none;stroke:black;stroke-width:3" />\n</svg>'
+ if n == "interval":
+ svg = svg % '0,0, 200,0'
+ elif n == "triangle":
+ svg = svg % '0,200 200,200 0,0 0,200'
+ elif n == "quadrilateral":
+ svg = svg % '0,200 200,200 200,0 0,0 0,200'
+ else:
+ svg = None
+ return svg
+
class ProductCell(Cell):
"""Representation of a cell formed by Cartesian products of
other cells."""
__slots__ = ("_cells",)
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