This video of a MOAB-based ITER surface model was generate with the yt using the following notebook!
from IPython.display import YouTubeVideo
YouTubeVideo('KKQc-wSEOxQ')
import h5py
from yt.mods import *
import matplotlib.pyplot as plt
from matplotlib import collections
from yt.utilities.lib.geometry_utils import triangle_plane_intersect
def intersect_plane(ax, coord, tri):
# Tri is [ (p0, p1, p2), (p0, p1, p2), (p0, p1, p2) ]
p = []
for i0, i1 in [(0, 1), (1, 2), (2, 0)]:
p0 = tri[i0,:]
p1 = tri[i1,:]
vec = p1 - p0
t = (coord - p0[ax])/vec[ax]
# coord = t0[ax] + vec[ax]*t
if 0.0 <= t <= 1.0:
p.append(p0 + vec * t)
return p
#f = h5py.File("teapot.h5m", "r")
#f = h5py.File("iter_imprinted.h5m", "r")
f = h5py.File("bllite30matls_zip.h5m", "r")
coords = f["/tstt/nodes/coordinates"][:]
conn = f["/tstt/elements/Tri3/connectivity"][:]
points = coords[conn-1]
%%time
ax = 2
xax, yax = x_dict[ax], y_dict[ax]
mi = coords.min(axis=0)
ma = coords.max(axis=0)
cut_points = np.mgrid[coords[:,ax].min():coords[:,ax].max():1008j]
for i, coord in parallel_objects(enumerate(cut_points)):
plt.clf()
l_cy = triangle_plane_intersect(ax, coord, points)[:,:,(xax, yax)]
lc = collections.LineCollection(l_cy, colors='k')
plt.gca().add_collection(lc)
plt.xlim(mi[xax], ma[xax])
plt.ylim(mi[yax], ma[yax])
plt.title("z = {0:.4} cm".format(coord))
plt.xlabel("x [cm]")
plt.ylabel("y [cm]")
plt.savefig("iter{0:03}.png".format(i))
print("generated {0:.4} {1}".format(coord, i))
generated -850.0 0 generated -848.3 1 generated -846.6 2 generated -844.9 3 generated -843.2 4 generated -841.6 5 generated -839.9 6 generated -838.2 7 generated -836.5 8 generated -834.8 9 generated -833.1 10 generated -831.4 11 generated -829.7 12 generated -828.1 13 generated -826.4 14 generated -824.7 15 generated -823.0 16 generated -821.3 17 generated -819.6 18 generated -817.9 19 generated -816.2 20 generated -814.5 21 generated -812.9 22 generated -811.2 23 generated -809.5 24 generated -807.8 25 generated -806.1 26 generated -804.4 27 generated -802.7 28 generated -801.0 29 generated -799.4 30 generated -797.7 31 generated -796.0 32 generated -794.3 33 generated -792.6 34 generated -790.9 35 generated -789.2 36 generated -787.5 37 generated -785.8 38 generated -784.2 39 generated -782.5 40 generated -780.8 41 generated -779.1 42 generated -777.4 43 generated -775.7 44 generated -774.0 45 generated -772.3 46 generated -770.7 47 generated -769.0 48 generated -767.3 49 generated 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generated 382.4 730 generated 384.1 731 generated 385.7 732 generated 387.4 733 generated 389.1 734 generated 390.8 735 generated 392.5 736 generated 394.2 737 generated 395.9 738 generated 397.6 739 generated 399.3 740 generated 400.9 741 generated 402.6 742 generated 404.3 743 generated 406.0 744 generated 407.7 745 generated 409.4 746 generated 411.1 747 generated 412.8 748 generated 414.4 749 generated 416.1 750 generated 417.8 751 generated 419.5 752 generated 421.2 753 generated 422.9 754 generated 424.6 755 generated 426.3 756 generated 428.0 757 generated 429.6 758 generated 431.3 759 generated 433.0 760 generated 434.7 761 generated 436.4 762 generated 438.1 763 generated 439.8 764 generated 441.5 765 generated 443.1 766 generated 444.8 767 generated 446.5 768 generated 448.2 769 generated 449.9 770 generated 451.6 771 generated 453.3 772 generated 455.0 773 generated 456.7 774 generated 458.3 775 generated 460.0 776 generated 461.7 777 generated 463.4 778 generated 465.1 779 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generated 635.6 880 generated 637.3 881 generated 639.0 882 generated 640.7 883 generated 642.4 884 generated 644.0 885 generated 645.7 886 generated 647.4 887 generated 649.1 888 generated 650.8 889 generated 652.5 890 generated 654.2 891 generated 655.9 892 generated 657.5 893 generated 659.2 894 generated 660.9 895 generated 662.6 896 generated 664.3 897 generated 666.0 898 generated 667.7 899 generated 669.4 900 generated 671.1 901 generated 672.7 902 generated 674.4 903 generated 676.1 904 generated 677.8 905 generated 679.5 906 generated 681.2 907 generated 682.9 908 generated 684.6 909 generated 686.2 910 generated 687.9 911 generated 689.6 912 generated 691.3 913 generated 693.0 914 generated 694.7 915 generated 696.4 916 generated 698.1 917 generated 699.8 918 generated 701.4 919 generated 703.1 920 generated 704.8 921 generated 706.5 922 generated 708.2 923 generated 709.9 924 generated 711.6 925 generated 713.3 926 generated 714.9 927 generated 716.6 928 generated 718.3 929 generated 720.0 930 generated 721.7 931 generated 723.4 932 generated 725.1 933 generated 726.8 934 generated 728.5 935 generated 730.1 936 generated 731.8 937 generated 733.5 938 generated 735.2 939 generated 736.9 940 generated 738.6 941 generated 740.3 942 generated 742.0 943 generated 743.6 944 generated 745.3 945 generated 747.0 946 generated 748.7 947 generated 750.4 948 generated 752.1 949 generated 753.8 950 generated 755.5 951 generated 757.1 952 generated 758.8 953 generated 760.5 954 generated 762.2 955 generated 763.9 956 generated 765.6 957 generated 767.3 958 generated 769.0 959 generated 770.7 960 generated 772.3 961 generated 774.0 962 generated 775.7 963 generated 777.4 964 generated 779.1 965 generated 780.8 966 generated 782.5 967 generated 784.2 968 generated 785.8 969 generated 787.5 970 generated 789.2 971 generated 790.9 972 generated 792.6 973 generated 794.3 974 generated 796.0 975 generated 797.7 976 generated 799.4 977 generated 801.0 978 generated 802.7 979 generated 804.4 980 generated 806.1 981 generated 807.8 982 generated 809.5 983 generated 811.2 984 generated 812.9 985 generated 814.5 986 generated 816.2 987 generated 817.9 988 generated 819.6 989 generated 821.3 990 generated 823.0 991 generated 824.7 992 generated 826.4 993 generated 828.1 994 generated 829.7 995 generated 831.4 996 generated 833.1 997 generated 834.8 998 generated 836.5 999 generated 838.2 1000 generated 839.9 1001 generated 841.6 1002 generated 843.2 1003 generated 844.9 1004 generated 846.6 1005 generated 848.3 1006 generated 850.0 1007 CPU times: user 17min 57s, sys: 4.24 s, total: 18min 1s Wall time: 18min 3s
!mencoder 'mf://iter*.png' -mf fps=24 -o iter-surfaces.mp4 -ovc lavc -lavcopts vcodec=mpeg4
MEncoder svn r34540 (Ubuntu), built with gcc-4.7 (C) 2000-2012 MPlayer Team WARNING: OUTPUT FILE FORMAT IS _AVI_. See -of help. success: format: 16 data: 0x0 - 0x0 MF file format detected. [mf] search expr: iter*.png [mf] number of files: 1008 (8064) [demux_mf] file type was not set! trying 'type=png'... VIDEO: [MPNG] 0x0 24bpp 24.000 fps 0.0 kbps ( 0.0 kbyte/s) [V] filefmt:16 fourcc:0x474E504D size:0x0 fps:24.000 ftime:=0.0417 libavcodec version 53.35.0 (external) Mismatching header version 53.32.2 Opening video filter: [expand osd=1] Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1 ========================================================================== Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family Selected video codec: [ffpng] vfm: ffmpeg (FFmpeg PNG) ========================================================================== Could not find matching colorspace - retrying with -vf scale... Opening video filter: [scale] Movie-Aspect is undefined - no prescaling applied. [swscaler @ 0x7fe74c4e3640]BICUBIC scaler, from bgra to yuv420p using MMX2 videocodec: libavcodec (432x288 fourcc=34504d46 [FMP4]) Writing header... ODML: Aspect information not (yet?) available or unspecified, not writing vprp header. Writing header... ODML: Aspect information not (yet?) available or unspecified, not writing vprp header. [VD_FFMPEG] DRI failure. Flushing video frames. Writing index... Writing header... ODML: Aspect information not (yet?) available or unspecified, not writing vprp header. Video stream: 428.022 kbit/s (53502 B/s) size: 2247118 bytes 42.000 secs 1008 frames
!rm iter*.png