def show(self, ax=None):
"""
show the graph as a planar graph
Parameters
----------
ax, axis handle
Returns
-------
ax, axis handle
"""
import matplotlib.pylab as mp
if ax==None:
mp.figure()
ax = np.subplot(1,1,1)
t = (2*np.pi*np.arange(self.V))/self.V
mp.plot(np.cos(t),np.sin(t),'.')
for e in range(self.E):
A = (self.edges[e,0]*2*np.pi)/self.V
B = (self.edges[e,1]*2*np.pi)/self.V
ax.plot([np.cos(A),np.cos(B)],[np.sin(A),np.sin(B)],'k')
ax.axis('off')
return ax
def empty_grid(ax=None):
if ax is None:
ax = plt.gca()
ax.xaxis.set_ticks([])
ax.yaxis.set_ticks([])
ax.set_frame_on(False)
ax.axis("equal")
ax.axis([-1.01, 1.01, -1.01, 1.01])
return ax
if __name__ == "__main__":
plt.clf()
ax1 = np.subplot(331)
smith(ax1)
ax2 = np.subplot(332)
inv_smith(ax2)
ax3 = np.subplot(333)
smith_polar(ax3)
ax4 = np.subplot(334)
empty_grid(ax4)
smith_grid(ax4)
smith_grid(ax4, standard=False)
ax5 = np.subplot(335)
empty_grid(ax5)
polar_grid(ax5)
polar_grid(ax, "upper")
def empty_grid(ax=None):
if ax is None:
ax = plt.gca()
ax.xaxis.set_ticks([])
ax.yaxis.set_ticks([])
ax.set_frame_on(False)
ax.axis("equal")
ax.axis([-1.01, 1.01, -1.01, 1.01])
return ax
if __name__ == "__main__":
plt.clf()
ax1 = np.subplot(331)
smith(ax1)
ax2 = np.subplot(332)
inv_smith(ax2)
ax3 = np.subplot(333)
smith_polar(ax3)
ax4 = np.subplot(334)
empty_grid(ax4)
smith_grid(ax4)
smith_grid(ax4, standard=False)
ax5 = np.subplot(335)
empty_grid(ax5)
polar_grid(ax5)