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From: zxc <Web...@we...> - 2010-02-07 18:06:29
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Hi there! I need to know how to close a figure/chart in matplot. Does anyone know how it works and could you please explain on the example below? The problem is: close(1) doesn't close the figure 1 and when the 2nd figure will be plot the program hangs. I tried with draw() but the figure doesn't appear. Thanks! John import matplotlib.pyplot as plt import time fig = plt.figure(1) ax = fig.add_subplot(111) ax.plot((1, 3, 1)) plt.show() time.sleep(10) plt.close(1) fig = plt.figure(2) ax = fig.add_subplot(111) ax.plot((4, 1, 0)) plt.show() |
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From: Jeff W. <js...@fa...> - 2010-02-07 22:04:28
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zxc wrote: > Hi there! > I need to know how to close a figure/chart in matplot. > > Does anyone know how it works and could you please explain on the > example below? > The problem is: close(1) doesn't close the figure 1 and when the 2nd > figure will be plot the program hangs. > I tried with draw() but the figure doesn't appear. Use fig.close() -Jeff |
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From: Wayne W. <sie...@sb...> - 2010-02-07 22:35:28
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Thanks. It seems most example of matplotlib end with show(). In fact, all may end that way, at least the short ones. On 2/7/2010 1:50 PM, Jeff Whitaker wrote: > > I need to know how to close a figure/chart in matplot. > -- My life in two words. "Interrupted Projects." -- WTW (quote originator) |
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From: Wayne W. <sie...@sb...> - 2010-02-08 03:15:54
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Thanks. It seems most example of matplotlib end with show(). In fact, all may end that way, at least the short ones. On 2/7/2010 1:50 PM, Jeff Whitaker wrote: > > I need to know how to close a figure/chart in matplolib. > -- My life in two words. "Interrupted Projects." -- WTW (quote originator) |
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From: David M. <mac...@ec...> - 2010-02-08 15:22:35
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Jeff Whitaker wrote: > > zxc wrote: >> Hi there! >> I need to know how to close a figure/chart in matplot. >> >> Does anyone know how it works and could you please explain on the >> example below? >> The problem is: close(1) doesn't close the figure 1 and when the 2nd >> figure will be plot the program hangs. >> I tried with draw() but the figure doesn't appear. > > Use fig.close() > >>> fig.close() Traceback (most recent call last): - - - AttributeError: 'Figure' object has no attribute 'close' I think you mean plt.close(). This seems to suspend IDLE, and activate the plot and console windows. To get back, I use "exit" in the console window. Try using the draw() command instead of show(). Sometimes you need to issue this command twice. If I ever get this figured out, I'll write a HOWTO note. -- View this message in context: http://old.nabble.com/How-to-close-a-plot--tp27490895p27501480.html Sent from the matplotlib - users mailing list archive at Nabble.com. |
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From: Wayne W. <sie...@sb...> - 2010-02-08 03:19:56
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Well, that didn't quite work. I tried ... fig=figure() ... fig.close() show() and show() fig.close() In the first case, I got the error msg: On 2/7/2010 7:15 PM, Wayne Watson wrote: Figure has no attribute close > Thanks. It seems most example of matplotlib end with show(). In fact, > all may end that way, at least the short ones. > > On 2/7/2010 1:50 PM, Jeff Whitaker wrote: > >>> I need to know how to close a figure/chart in matplolib. >>> >> > -- My life in two words. "Interrupted Projects." -- WTW (quote originator) |
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From: Philipp B. <li...@ro...> - 2010-02-08 06:53:17
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I'm pretty sure your problem is not generally related to matplotlib, all the examples you mentioned and the one you sent me by e-mail worked for me. Maybe you try a different version or a different operating system for your scripts. |
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From: Wayne W. <sie...@sb...> - 2010-02-08 16:55:08
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Thanks. That could be a very useful observation. I'm doing most of this
on a win7 machine. When I installed MPL, I had two small dialogs appear
that said something was missing, but I pressed on. MPL seemed to
generally work except for the show() problem. I'm in the process of
bringing programs from my XP to the win7 machine, and on the XP machine
I decided to start using MPL with a 900 line Py program that I'm
revising. I had gotten stuck with the very same problem there. However,
last night I realized someone had added a MPL plot to it years ago, and
it does not fail on show().
I noticed the msgs mentioned, and though I mad made a mistake in not
installing numpy first, so tried to figure out a way to do it. Three
posts on different forums did not provide an answer. I accidentally
founnd the author of MPL's hidden away in one of MPL files. He said it
didn't make a difference and asked me not to use his address. I though
the warning msgs might be of interest to him, so wrote to him. He had
blocked me. Perhaps I need to file a bug report to get his attention on
that.
Anyway, I'm now stalled on the development of the big program. It's
possible this is an IDLE problem, but I ran the big program with a click
on the file, and the black window showed the same problem. It did show
some other warnings, which I think I'll capture with Snagit. This is all
on XP Pro.
I'm going to copy the two code segments here. Maybe you can see a
difference. I'll also attach the capture of the window too. Two jpg
files are attached for the same code below, and one for the error
messages from the console XP.
=================OLD working code============
def light_curve( self ):
result = []
test = 1
for tup in self.subimages:
left,top,subimage = tup
total = 0
avg_total = 0
if (test == 1):
box = (left, top, left+128, top+128)
region = self.reference_image.crop(box)
self.reference_image.paste(subimage, box)
test = 2
else:
for x in range(left+43,left+82):
for y in range(top+43, top+82):
avg_total = avg_total +
self.reference_image.getpixel((x, y))
for x in range(43,82): #take the center 40 X 40 pixel block
for y in range(43,82):
v = subimage.getpixel((x, y))
total = total + v
#for x in range(left, left+127):
# for y in range(top, top+127):
# avg_total = avg_total +
self.reference_image.getpixel((x, y))
#for x in range(0, 127):
# for y in range(0, 127):
# total = total + subimage.getpixel((x, y))
result.append(total - avg_total) #(average - background
average) gives pixel intensity above the background)
plotting_x = range(2, len(result)+2)
plot(plotting_x, result)
xlabel('Frame #')
ylabel('Pixel count above background count')
title('Light curve for selected subplot')
show()
===========New Code with show problem
def get_point_trail_stats(self): # Simple track statistics
xy = array(self.xya)[:,0:2] # creates a two column array for x,y
pt2pt_dist = []
pt_dist = []
for k in arange(0,len(xy)-1):
distance = sqrt((xy[k+1,0]-xy[k,0])**2 +
(xy[k+1,1]-xy[k,1])**2)
pt_dist.append(distance)
# wtw print "k ",k, (xy[k,0], xy[k,1]), " distance: ", distance
# wtwfor k in arange(0, len(xy)-50):
# wtw print "k: %3i dist: %6.2f (x,y) (%4.1f,%4.1f)" % (k,
pt_dist[k], xy[k,0], xy[k,1])
per_tile25 = stats.scoreatpercentile(pt_dist,25.0)
per_tile50 = stats.scoreatpercentile(pt_dist,50.0)
per_tile75 = stats.scoreatpercentile(pt_dist,75.0)
mean = stats.mean(pt_dist)
std = stats.std(pt_dist)
#sys.exit()
amin = min(pt_dist)
amax = max(pt_dist)
print " mean: %7.2f std: %7.2f min: %7.2f max: %7.2f" %
(mean, std, amin, amax)
print " quartiles (25-per: %7.2f, 50-per: %7.2f, 75-per:
%7.2f): " % (per_tile25, per_tile50, per_tile75)
#print " Extended stats"
#print " min: %7.2f max: %7.2f mean: %7.2f std: %7.2f" % \
# (min, max, mean, std)
#print " p25: %7.2f p50: %7.2f p75: %7.2f" % (per_tile25,
per_tile50, per_tile75)
trk_stats = (amin, amax, mean, std, per_tile25, per_tile50,
per_tile75)
fig = figure()
ax1 = fig.add_subplot(111)
v = (0, 640, 0, 480)
print "shapes: ", xy[:,0].shape, xy[:,1].shape
fig.close()
ax1.plot(xy[:,0], xy[:,1]) #,100*s, c , picker=True)
ax1.axis(v)
#x = (0,1,3,20,20);y=(5,7, 9, 22,90)
#col = ax1.plot(x,y)
show()
print "something for wtw plot"
print
return trk_stats
On 2/7/2010 10:53 PM, Philipp Bender wrote:
> I'm pretty sure your problem is not generally related to matplotlib, all the
> examples you mentioned and the one you sent me by e-mail worked for me. Maybe
> you try a different version or a different operating system for your scripts.
>
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--
"Crime is way down. War is declining. And that's far from the good
news." -- Steven Pinker (and other sources) Why is this true, but yet
the media says otherwise? The media knows very well how to manipulate us
(see limbic, emotion). -- WTW
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From: Wayne W. <sie...@sb...> - 2010-02-08 03:21:20
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In the second case, after x, nothing really happened. The program resecuted the def it was in. On 2/7/2010 7:19 PM, Wayne Watson wrote: > Well, that didn't quite work. > > I tried > ... > fig=figure() > ... > fig.close() > show() > > and > show() > fig.close() > > In the first case, I got the error msg: > > On 2/7/2010 7:15 PM, Wayne Watson wrote: Figure has no attribute close > >> Thanks. It seems most example of matplotlib end with show(). In fact, >> all may end that way, at least the short ones. >> >> On 2/7/2010 1:50 PM, Jeff Whitaker wrote: >> >> >>>> I need to know how to close a figure/chart in matplolib. >>>> >>>> >>> >>> >> >> > -- My life in two words. "Interrupted Projects." -- WTW (quote originator) |
