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  • ¸½¼þ 1 : transband.py
  • 2014-08-26 16:27:05, 3.43 K

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7Â¥: Originally posted by xujc1983 at 2014-08-27 09:02:49
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xml = etree.ElementTree(file = ¡®vasprun.xml¡¯£©
def get_spin_polarized(xml):
    ispin = xml.xpath(r'//separator[@name="electronic spin"]/i[@name="ISPIN"]')
    ispin = int(ispin[0].text)
    return ispin == 2
def get_bands(xml, is_spin_polarized):
    band_path = r'//calculation/eigenvalues/array/set/set[@comment="spin {}"]/set[{}]/r'
    high_kpts = xml.xpath(r'//kpoints/generation[@param="listgenerated"]/v')
    kpts = xml.xpath(r'/modeling/kpoints/varray[@name="kpointlist"]/v')
    eigs = []
    for i in xrange(len(kpts)):
        eigs.append(xml.xpath(band_path.format(1, i + 1)))
    if is_spin_polarized:
        for i in xrange(len(kpts)):
            eigs.append(xml.xpath(band_path.format(2, i + 1)))
    bands = []
    dk = 0.0
    def kpdist(i, j):
        ki = [float(i) for i in kpts.text.split()]
        kj = [float(i) for i in kpts[j].text.split()]
        return ((kj[0] - ki[0])**2 + (kj[1] - ki[1])**2 + (kj[2] - ki[2])**2)**0.5
    for i in xrange(len(kpts)):
        if i > 0:
            dk += kpdist(i, i - 1)
        cb = [dk]
        for j in xrange(len(eigs[0])):
            cb.append(float(eigs[j].text.split()[0]))
        if is_spin_polarized:
            for j in xrange(len(eigs[0])):
                cb.append(float(eigs[i + len(kpts)][j].text.split()[0]))
        bands.append(cb)
    lines = []
    if high_kpts:
        ck = high_kpts[0]
        dk = 0.0
        for ik in high_kpts:
            ki = [float(i) for i in ck.text.split()]
            kj = [float(i) for i in ik.text.split()]
            dk += ((kj[0] - ki[0])**2 + (kj[1] - ki[1])**2 + (kj[2] - ki[2])**2)**0.5
            ck = ik
            lines.append(dk)
    return bands, line
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xujc1983

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4Â¥: Originally posted by lfhuang at 2014-08-26 22:31:05
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http://blog.sciencenet.cn/home.php?mod=space&uid=345795&do=blog&quickforward=1&id=641013

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6Â¥2014-08-27 09:02:04
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xujc1983

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5Â¥: Originally posted by Â̱éɽԭ at 2014-08-27 08:20:56
ÆäʵËãÍêºóÖ±½ÓÓÃxml¶ÁÈ¡¸ü·½±ã£¬³ýÁ˵çºÉÃܶȲ¨º¯Êý£¬ËùÓмÆËã½á¹û¶¼ÔÚÀïÃæ¡£

xmlÀïµÄ½á¹ûÌ«¶à£¬Èç¹ûÖ»ÊÇ¿´ÄÜ´ø½á¹¹µÄ»°£¬ÎÒ¸öÈ˾õ×ÅÖ±½Ó¿´ELGENVELÀ´µÄÊ¡ÊÂ
7Â¥2014-08-27 09:02:49
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xujc1983

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8Â¥: Originally posted by Â̱éɽԭ at 2014-08-27 13:28:16
xml´¦Àí²»Âé·³£¬¶øÇÒ±ÈÖ±½Ó¶ÁÎı¾¸üÈÝÒ׵㡣
±ÈÈç¶ÁÄÜ´øµÄ£º
xml = etree.ElementTree(file = ¡®vasprun.xml¡¯£©
def get_spin_polarized(xml):
    ispin = xml.xpath(r'//separator/i')
    ispin = int(is ...

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9Â¥2014-08-27 13:55:23
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