Hi Ryan,
On 20.01.06, Ryan Krauss wrote:
> 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)
An arc is just a subclass of pathitem, i.e., something
which in itself cannot be drawn directly on a canvas.
Instead, you need to wrap it into a path before stroking
it:
myarc = path.path(path.arc(2.5, 8.2, 4, 250, 285))
> #c.stroke(myarc,[myblue,mylinestyle])
Btw, that this line works, is pure luck ;-)
Jörg
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