I am new to PyX and am trying to use it for illustrations in my
thesis. It seems really powerful.
I am trying to draw and arc with arrows on both ends to illustrate a
swinging motion.
my script starts with
from pyx import *
myasize=0.5
text.set(mode="latex")
#text.preamble(r"\usepackage{palatino}")
myarrow=deco.arrow(size=myasize)
myearrow=deco.earrow(size=myasize)
myblue=color.rgb(b=0.8,g=0.05)
mylinestyle=style.linewidth.Thick
and I later define
mylinewarrows=[mylinestyle,myarrow,myearrow,myblue]
this works great for straight lines but when I try:
myarc=path.arc(2.5,8.2,4,250,285)
#c.stroke(myarc,[myblue,mylinestyle])
c.stroke(myarc,mylinewarrows)
I get
Traceback (most recent call last):
File "setup_pic.py", line 34, in ?
c.stroke(myarc,mylinewarrows)
File "/usr/lib/python2.4/site-packages/pyx/canvas.py", line 241, in stroke
self.draw(path, [deco.stroked]+list(attrs))
File "/usr/lib/python2.4/site-packages/pyx/canvas.py", line 227, in draw
dp = adeco.decorate(dp)
File "/usr/lib/python2.4/site-packages/pyx/deco.py", line 440, in decorate
dp.ensurenormpath()
File "/usr/lib/python2.4/site-packages/pyx/deco.py", line 74, in
ensurenormpath
self.path = self.path.normpath()
AttributeError: 'arc' object has no attribute 'normpath'
Note that it works fine if I switch to
c.stroke(myarc,[myblue,mylinestyle])
but then I have no arrows, which I really need.
Otherwise my illustration looks good.
How do I combined an arc with arrows?
Thanks,
Ryan
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