The original discussion is here:http://groups.google.com/group/sage-
support/browse_thread/thread/3f4ad882ba420693?hl=en. However, since
the discussion seems closed I can't reply to it so I just opened this
another discussion.

I'm using sage4.7.1 and running it on ubuntu 11.04. I tried to create
a branch for sage and patch this: http://trac.sagemath.org/sage_trac/ticket/9491
and it seems worked since sagenb will not complain about the unknown
argument 'opacity' after that but patching procedure reported:
{{{
Hunk #1 FAILED at 119
Hunk #2 FAILED at 146
Hunk #3 FAILED at 167
Hunk #4 FAILED at 179
4 out of 4 hunks FAILED -- saving rejects to file sage/plot/
contour_plot.py.rej
abort: patch failed to apply
}}}
The region_plot works well to fill some area with color and
transparent to axis and lines but it fails for points. For my example:
{{{
c1 = line([[5,8],[7,0]])
c2 = line([[-1,7],[7,5]])
c3 = line([[-1,-2],[6,5]])
f = [()]
g = [()]
for i in range(8):
    for j in range(8):
        if (4*i+j<=28)&(i+4*j<=27)&(i-j<=1):
            f.append((i,j))
        else:
            g.append((i,j))

f.pop(0)
g.pop(0)
c = line([[0,0],[2,5]])
var('x y')
r1=region_plot(max(x+4*y-28,x-y-1)<=-.5,(x,0,6),(y,
0,5),incol='lightblue',borderwidth=0,opacity=0.5)
r1+=point(f,rgbcolor=[1,0,0])+plot(c1)+plot(c2)+plot(c3)+point(g)
r1.show()
}}}
The points in the area of region_plot are covered by the region_plot.
I'm not sure whether I failed to patch it or the patch indeed fails to
work for points. Thx.

-- 
To post to this group, send email to sage-support@googlegroups.com
To unsubscribe from this group, send email to 
sage-support+unsubscr...@googlegroups.com
For more options, visit this group at 
http://groups.google.com/group/sage-support
URL: http://www.sagemath.org

Reply via email to