Re: [Matplotlib-users] text annotation
Nice! Still some stuff to enhance but got it! Thanks a lot. Ben Le 19 déc. 10 à 05:30, Jae-Joon Lee a écrit : I don't think polar is a good fit for your case. Instead, you can simply use data coordinate with explicit coordinate transformation. Try something like; for i in xrange(5): theta = i*1.3+1.5 xx = center[0]+(radius-4)*math.cos(theta) yy = center[1]+(radius-4)*math.sin(theta) pyplot.annotate(str(i+1), (xx, yy), color='g', va=center, ha=center) -JJ On Thu, Dec 16, 2010 at 5:27 PM, Benoist Laurent beno...@ibpc.fr wrote: Sorry for the delay. This is the script is used (modified so that it include the data). Le 15 déc. 10 à 16:50, Benjamin Root a écrit : On Wed, Dec 15, 2010 at 9:46 AM, Benoist Laurent beno...@ibpc.fr wrote: Hi all, I'm still a bit stuck with this probleme of polar annotation. Let me present the problem in a different way. I've got the center of my circle, its radius and even some points on the circle. Actually, I'd like to annotate these points (red crosses in the joined picture). How would you do that? My best try gave me the green numbers. Thanks in advance, Ben Can you include the source code (if it is simple) that you used to generate this example, and we could probably help you out. Ben Root -- Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] text annotation
I don't think polar is a good fit for your case. Instead, you can simply use data coordinate with explicit coordinate transformation. Try something like; for i in xrange(5): theta = i*1.3+1.5 xx = center[0]+(radius-4)*math.cos(theta) yy = center[1]+(radius-4)*math.sin(theta) pyplot.annotate(str(i+1), (xx, yy), color='g', va=center, ha=center) -JJ On Thu, Dec 16, 2010 at 5:27 PM, Benoist Laurent beno...@ibpc.fr wrote: Sorry for the delay. This is the script is used (modified so that it include the data). Le 15 déc. 10 à 16:50, Benjamin Root a écrit : On Wed, Dec 15, 2010 at 9:46 AM, Benoist Laurent beno...@ibpc.fr wrote: Hi all, I'm still a bit stuck with this probleme of polar annotation. Let me present the problem in a different way. I've got the center of my circle, its radius and even some points on the circle. Actually, I'd like to annotate these points (red crosses in the joined picture). How would you do that? My best try gave me the green numbers. Thanks in advance, Ben Can you include the source code (if it is simple) that you used to generate this example, and we could probably help you out. Ben Root -- Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] text annotation
Sorry for the delay.This is the script is used (modified so that it include the data). from matplotlib import pyplot from matplotlib import patches import math def getCenter(points): Return the center of a list of 2D points. meanX = sum(p[0] for p in points) / len(points) meanY = sum(p[1] for p in points) / len(points) return (meanX, meanY) def dist(p1, p2): Return the distance between two points.\ Points can be either 2D or 3D. s2 = 0.0 for i, dim1 in enumerate(p1): s2 += (dim1 - p2[i])**2 return math.sqrt(s2) def getMeanDist(ref, points): Return the mean distance between a reference point and a list of \ points. d = [dist(ref, p) for p in points] return sum(d) / len(d) if __name__ == '__main__': lx = [2.13796782494, 0.22932203114, 0.145705774426, -0.1842751652, -0.472284257412, 1.66362369061, 2.16047716141, 1.47219955921, 0.703634023666, -1.15651118755, 0.443440586329, -0.292924255133, -0.576901197433, -0.390790998936, -0.453659176826, -0.0308310128748, 0.567431628704, -0.788715064526, -0.170957371593, -0.0500493347645, -0.635111093521, -0.949955403805, -1.0446549654, -1.09050607681, -0.334621369839, -0.256768316031, -0.528183162212, -0.221842378378, -1.81420075893, -1.08557665348, -0.57961076498, 0.432336330414, -0.0662814080715, -0.370493412018, 0.125144153833, 1.28159570694, 1.84332048893, 1.14498448372, 1.67104315758, 1.42439639568, 0.82164734602, -0.587348818779, 0.760407328606, 1.27920556068, -0.61829417944, -0.18117390573, -0.0751572549343, -0.350429683924, 0.345632463694, 0.323070138693, -0.475901484489, -0.726973831654, -0.343768119812, -0.796733736992, -0.830528855324, -1.045976758, -1.09633731842, -2.4005905, -2.86712360382, -3.10275816917, -3.01660752296, -1.34393537045, -1.94433999062, -2.16338896751, -3.34179592133, -0.19719530642, -1.1443066597, -1.08435976505, -1.39720845222, -2.89352178574, -2.2695646286, -1.57835280895, -1.81462919712, -1.89711308479, -2.32298707962, -2.0290055275, -1.45719373226, -1.57886171341, -1.65614414215, -1.4572674036, -1.51952528954, -1.88826346397, -2.22109389305, -1.71397793293, -1.71507167816, -1.70611810684, -1.56743752956, -1.85161161423, -1.6463187933, -1.79676258564, -1.87860679626, -2.90355992317, -1.84876096249, -2.07646965981, -2.05375623703, -1.71399760246, -2.81210660934, -1.78234100342, -2.53161597252, -2.66990470886, -2.39481759071, -2.04717803001, -1.93592202663, -2.37386870384, -2.39932227135, -2.04974675179, -1.92444729805, -2.54312872887, -2.16789412498, -2.93449926376, -2.78199458122, -2.67508721352, -1.9028263092, -2.93164873123, -2.31925606728, -2.98324871063, -2.68316316605, -2.91516590118, -3.1617205143, -2.52871823311, -2.16317343712, -3.33456754684, 19.1367740631, 19.6861019135, 19.7093486786, 19.8942642212, 19.8867950439, 19.87865448, 19.4970397949, 20.2397651672, 19.4614696503, 19.9221191406, 19.7497997284, 19.6925258636, 19.3745632172, 19.3739128113, 19.5682678223, 19.604133606, 19.74168396, 19.603395462, 20.053232193, 19.7705841064, 19.5930023193, 19.8512248993, 19.6046142578, 20.1397628784, 19.9803371429, 19.7125339508, 19.9095001221, 19.728099823, 19.8760719299, 20.1098461151, 19.6742668152, 20.1753902435, 20.0182418823, 19.8330516815, 20.1489067078, 19.5577068329, 19.9162006378, 19.7167301178, 20.0771312714, 19.7205791473, 20.2147369385, 20.1147880554, 20.0389518738, 20.1278991699, 19.7525215149, 19.9678668976, 19.9451332092, 20.5374622345, 19.5659732819, 20.7870616913, 20.4983119965, 20.4722671509, 20.3699855804, 20.4146499634, 20.6225090027, 20.6489887238, 20.9176940918, 20.4313163757, 20.9441738129, 20.7304534912, 20.2121162415, 34.6434783936, 35.7543067932, 37.1368217468, 39.034198761, 39.5439300537, 41.0436935425, 40.4959945679, 41.0163993835, 40.7507781982, 41.2522659302, 40.2168617249, 40.7332229614, 39.8335456848, 39.0498046875, 40.0605392456, 37.2514038086, 38.2259063721, 38.196849823, 38.1231460571, 37.7521896362, 39.277507782, 38.6683502197, 38.2704620361, 38.2063293457, 38.067489624, 38.6640090942, 38.5982666016, 38.5062294006, 36.9058113098, 37.9915237427, 37.6883964539, 38.0861587524, 38.3267974854, 37.8808479309, 38.5241470337, 38.6476554871, 37.7013282776, 37.6500053406, 38.2657966614, 36.6454200745, 37.444229126, 37.0459251404, 38.2217788696, 39.1504516602, 38.24269104, 38.0813293457, 37.9510307312, 39.0387458801, 42.2573318481, 40.275932312, 40.8754386902, 40.0514564514, 39.403213501, 39.3534126282, 39.8045806885, 39.3862571716, 39.2270507812, 39.6057128906, 39.2035255432, 39.6626663208, 40.0390663147, 25.4331626892, 24.387714386, 26.7786521912, 27.871843338, 29.3762130737, 29.6802787781, 29.8811683655, 31.9314346313, 29.6904697418, 30.3535175323, 29.1959037781, 28.9361419678, 29.3124370575, 27.9452018738, 27.7858276367, 28.2697582245, 28.1843299866, 28.5413455963, 30.4542121887, 29.6431770325, 28.966758728, 24.7452583313, 24.3427753448, 24.8653335571, 24.6588020325, 24.9432849884, 24.599275589, 25.060792923,
Re: [Matplotlib-users] text annotation
On Wed, Dec 15, 2010 at 9:46 AM, Benoist Laurent beno...@ibpc.fr wrote: Hi all, I'm still a bit stuck with this probleme of polar annotation. Let me present the problem in a different way. I've got the center of my circle, its radius and even some points on the circle. Actually, I'd like to annotate these points (red crosses in the joined picture). How would you do that? My best try gave me the green numbers. Thanks in advance, Ben Can you include the source code (if it is simple) that you used to generate this example, and we could probably help you out. Ben Root -- Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] text annotation
On 11/26/2010 8:12 AM, Benoist Laurent wrote: How can I manage the annotation of points forming a circle if I have their coordinates? http://matplotlib.sourceforge.net/api/pyplot_api.html#matplotlib.pyplot.annotate http://matplotlib.sourceforge.net/api/pyplot_api.html#matplotlib.pyplot.text http://matplotlib.sourceforge.net/examples/api/joinstyle.html hth, Alan Isaac -- Increase Visibility of Your 3D Game App Earn a Chance To Win $500! Tap into the largest installed PC base get more eyes on your game by optimizing for Intel(R) Graphics Technology. Get started today with the Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs. http://p.sf.net/sfu/intelisp-dev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] text annotation
Thank you for your answer. I read the text and annotate manual pages. I don't understand how the polar xycoords/textcoords works. I guess I should use this but its not clear to me. Le 26 nov. 10 à 14:13, Alan G Isaac a écrit : On 11/26/2010 8:12 AM, Benoist Laurent wrote: How can I manage the annotation of points forming a circle if I have their coordinates? http://matplotlib.sourceforge.net/api/pyplot_api.html#matplotlib.pyplot.annotate http://matplotlib.sourceforge.net/api/pyplot_api.html#matplotlib.pyplot.text http://matplotlib.sourceforge.net/examples/api/joinstyle.html hth, Alan Isaac -- Increase Visibility of Your 3D Game App Earn a Chance To Win $500! Tap into the largest installed PC base get more eyes on your game by optimizing for Intel(R) Graphics Technology. Get started today with the Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs. http://p.sf.net/sfu/intelisp-dev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Increase Visibility of Your 3D Game App Earn a Chance To Win $500! Tap into the largest installed PC base get more eyes on your game by optimizing for Intel(R) Graphics Technology. Get started today with the Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs. http://p.sf.net/sfu/intelisp-dev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Text annotation misaligned with png backend.
I don't see such problem in my installations.
I may be wrong but It seems to me that it is a font issue (I believe
you're not using usetex mode).
Can you try to use other fonts?
For example, my current installation picks up the following font (Vera Serif?).
In [10]: matplotlib.font_manager.findfont(None)
Out[10]:
'/astro/research/jul27/local/lib/python2.5/site-packages/matplotlib/mpl-data/fonts/ttf/VeraSe.ttf'
Regards,
-JJ
2009/10/30 Johan Grönqvist johan.gronqv...@gmail.com:
Hello List,
I am so far happy with the output form matplotlib, but I recently started
annotating my plots, and when saving to png-format, the annotations do not
look very nice. When saving to eps format, I do not see the same problems.
Saving to eps and converting to png seems to be a good workaround for me.
The problem is that the letters in the same word (on the same line) are not
aligned, some are drawn to far up or down.
png and eps figures are attached. Example script and version number (0.99.0)
below.
Am I misusing matplotlib? Is this a bug?
Regards
johan
Minimal example:
---
import matplotlib.pyplot as plt
import numpy as np
plt.figure()
x = [0]
plt.plot(x, x)
plt.annotate(units are important, $7.64358$,
$\\frac{\mathrm{k}\mathrm{m}}{\mathrm{s^2}}$,
xy = (0,0),
xycoords = data,
xytext = (0.2, 0.6),
textcoords = figure fraction,
arrowprops = dict(arrowstyle = -,
connectionstyle = arc))
plt.savefig(pyplot_text.png)
plt.savefig(pyplot_text.eps)
plt.show()
---
Expected result: An empty plot with a nice annotation on screen, in a
png-file, and in an eps-file
Result: Empty plots with annotation displaying differently in the three
cases. In the png file, the letters u and r and the digit 7 appear slightly
above the correct position, and the m in the unit km appears slightly below
the correct position. In the screen output, the m is correct, but the u and
r show the same problem as in the png file. In the eps file, all seems to be
well.
My os is debian (testing), and I obtain matplotlib and all related software
from the debian repositories.
jo...@johan-laptop:~$ uname -a
Linux johan-laptop 2.6.30-2-amd64 #1 SMP Fri Sep 25 22:16:56 UTC 2009 x86_64
GNU/Linux
jo...@johan-laptop:~$ python -c import matplotlib; print
matplotlib.__version__
0.99.0
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