[matplotlib-devel] another change request to markers.py

in makers.py I request to change

     def _set_custom_marker(self, path):
         verts = path.vertices
         rescale = max(np.max(np.abs(verts[:,0])), 
np.max(np.abs(verts[:,1])))
         self._transform = Affine2D().scale(1.0 / rescale)
         self._path = path

to

     def _set_custom_marker(self, path):
         verts = path.vertices
         rescale = np.max(np.sqrt(np.square(verts[:,0]) + 
np.square(verts[:,1])))
         self._transform = Affine2D().scale(1.0 / rescale)
         self._path = path

such that the symbol *radius* is normalized to 1.0

This way my previous example give better results if the symbol is rotated:

import matplotlib.path as path
from matplotlib.transforms import Affine2D

# define codes
P = path.Path
Pm = P.MOVETO
Pl = P.LINETO
Pc = P.CLOSEPOLY
c = [Pm] + [Pl]*3 + [Pc]
cx=c*2

# define basic path
r=np.array(((-1.,-1),(1.,-1),(1.,1.),(-1,1.),(-1,-1)))
# we add second closed path of half size but reverse parity
rh=0.5*r[::-1]
rx = np.vstack((r,rh))
p = path.Path(rx,codes=cx)

x = np.linspace(0,1,10)**2
plot(x,c='r',marker=p,ms=10)

pr = p.transformed(Affine2D().rotate_deg(45.))
plot(x,c='r',marker=pr,ms=10)

show()

I think this is how it is "meant" to be, but maybe you have to add a 
parameter to allow people recover the current behavior in that case.

-Alexander

====
I just like round cows better than square cows.