[Matplotlib-users] Semi transparent boxes around text and Postscript

[Carol L. <car...@sr...>]

The that the polar plot overlayed on a rectangular plot is working in 
Postscipt, I am having trouble with the semi-transparent boxes around 
the text.

The png file looks fine, but the postcript file does not show the 
differences in the alpha value.

Since the code is short, I'll supply it here:

#!/usr/bin python
from matplotlib.matlab import *

def OverlayText(xmax):
	x=0
	y = 0.65*xmax
	ystep = 0.2*xmax
	alpha = arange(0.0,1.2,0.2)

	
	for a in alpha:
		stext = 'Alpha = %.1f' % a
		t = text(x,y,stext)
		set(t,bbox={'edgecolor':'w','facecolor':'w','alpha':a})
		y = y - ystep


if __name__ == "__main__":
	# Make some kind of plot

	xmin = -750
	xmax = 750
	ymin = xmin
	ymax = xmax
	x = [xmin,xmax,xmax,xmin]
	y = [ymin,ymin,ymax,ymax]
	fill(x,y,'g',edgecolor='b')
	a = gca()
	a.set_xlim([xmin,xmax])
	a.set_ylim([ymin,ymax])


	OverlayText(xmax)

	savefig('overlay2.png')
	savefig('overlay2.ps')

	show()


-- 
Ms. Carol A. Leger
SRI International			Phone: (650) 859-4114
333 Ravenswood Avenue G-273
Menlo Park, CA 94025                    e-mail: le...@sr...