我有一个数据文件并想要为其绘制网格/曲面，但输出不合适。
\documentclass{article}
\usepackage{tikz, pgfplots}
\usepackage{pgfplots}
\begin{document}
% Preamble: \pgfplotsset{width=7cm,compat=1.11}
\begin{tikzpicture}
\begin{axis}
\addplot3[surf,mesh/ordering=y varies,mesh/cols=16]
table {data3.txt};
\end{axis}
\end{tikzpicture}
\end{document}
我的数据是：
x y z
0 0 0
0 0 0
0 2 0
0 4 0
0 6 0
0 8 0
0 10 0
0 12 0
0 14 0
0 16 0
0 18 0
0 20 0
0 22 0
0 24 0
0 26 0
0 28 0
0 30 0
0 32 0
0 34 0
0 36 0
0 38 0
0 40 0
0 42 0
0 44 0
0 46 0
0 48 0
0 50 0
0 52 0
0 54 0
0 56 0
0 58 0
0 60 0
0 62 0
1 62 0.0200000000000000
1 0 0.0131000000000000
1 2 0.0128000000000000
1 4 0.0132000000000000
1 6 0.0142000000000000
1 8 0.0153000000000000
1 10 0.0220000000000000
1 12 0.0300000000000000
1 14 0.0405000000000000
1 16 0.0478000000000000
1 18 0.0472000000000000
1 20 0.0648000000000000
1 22 0.0597000000000000
1 24 0.0663000000000000
1 26 0.0767000000000000
1 28 0.0842000000000000
1 30 0.0876000000000000
1 32 0.0876000000000000
1 34 0.0842000000000000
1 36 0.0767000000000000
1 38 0.0663000000000000
1 40 0.0597000000000000
1 42 0.0648000000000000
1 44 0.0472000000000000
1 46 0.0478000000000000
1 48 0.0405000000000000
1 50 0.0300000000000000
1 52 0.0220000000000000
1 54 0.0153000000000000
1 56 0.0142000000000000
1 58 0.0132000000000000
1 60 0.0128000000000000
1 62 0.0131000000000000
2 62 0.0331000000000000
2 0 0.0268000000000000
2 2 0.0262000000000000
2 4 0.0271000000000000
2 6 0.0290000000000000
2 8 0.0323000000000000
2 10 0.0455000000000000
2 12 0.0644000000000000
2 14 0.0849000000000000
2 16 0.104500000000000
2 18 0.113800000000000
2 20 0.141400000000000
2 22 0.146000000000000
2 24 0.165500000000000
2 26 0.181500000000000
2 28 0.199200000000000
2 30 0.208200000000000
2 32 0.208200000000000
2 34 0.199200000000000
2 36 0.181500000000000
2 38 0.165500000000000
2 40 0.146000000000000
2 42 0.141400000000000
2 44 0.113800000000000
2 46 0.104500000000000
2 48 0.0849000000000000
2 50 0.0644000000000000
2 52 0.0455000000000000
2 54 0.0323000000000000
2 56 0.0290000000000000
2 58 0.0271000000000000
2 60 0.0262000000000000
2 62 0.0268000000000000
3 62 0.0468000000000000
3 0 0.0410000000000000
3 2 0.0410000000000000
3 4 0.0435000000000000
3 6 0.0453000000000000
3 8 0.0527000000000000
3 10 0.0731000000000000
3 12 0.102500000000000
3 14 0.137500000000000
3 16 0.168600000000000
3 18 0.191000000000000
3 20 0.232900000000000
3 22 0.247000000000000
3 24 0.276400000000000
3 26 0.306000000000000
3 28 0.332000000000000
3 30 0.344000000000000
3 32 0.344000000000000
3 34 0.332000000000000
3 36 0.306000000000000
3 38 0.276400000000000
3 40 0.247000000000000
3 42 0.232900000000000
3 44 0.191000000000000
3 46 0.168600000000000
3 48 0.137500000000000
3 50 0.102500000000000
3 52 0.0731000000000000
3 54 0.0527000000000000
3 56 0.0453000000000000
3 58 0.0435000000000000
3 60 0.0410000000000000
3 62 0.0410000000000000
4 62 0.0610000000000000
4 0 0.0546000000000000
4 2 0.0552000000000000
4 4 0.0572000000000000
4 6 0.0609000000000000
4 8 0.0703000000000000
4 10 0.0976000000000000
4 12 0.137000000000000
4 14 0.182600000000000
4 16 0.225500000000000
4 18 0.260100000000000
4 20 0.310300000000000
4 22 0.337200000000000
4 24 0.374800000000000
4 26 0.411100000000000
4 28 0.438800000000000
4 30 0.455900000000000
4 32 0.455900000000000
4 34 0.438800000000000
4 36 0.411100000000000
4 38 0.374800000000000
4 40 0.337200000000000
4 42 0.310300000000000
4 44 0.260100000000000
4 46 0.225500000000000
4 48 0.182600000000000
4 50 0.137000000000000
4 52 0.0976000000000000
4 54 0.0703000000000000
4 56 0.0609000000000000
4 58 0.0572000000000000
4 60 0.0552000000000000
4 62 0.0546000000000000
5 62 0.0746000000000000
5 0 0.0694000000000000
5 2 0.0697000000000000
5 4 0.0731000000000000
5 6 0.0776000000000000
5 8 0.0889000000000000
5 10 0.124600000000000
5 12 0.174300000000000
5 14 0.231600000000000
5 16 0.285300000000000
5 18 0.332300000000000
5 20 0.392700000000000
5 22 0.428900000000000
5 24 0.473500000000000
5 26 0.514100000000000
5 28 0.549600000000000
5 30 0.567500000000000
5 32 0.567500000000000
5 34 0.549600000000000
5 36 0.514100000000000
5 38 0.473500000000000
5 40 0.428900000000000
5 42 0.392700000000000
5 44 0.332300000000000
5 46 0.285300000000000
5 48 0.231600000000000
5 50 0.174300000000000
5 52 0.124600000000000
5 54 0.0889000000000000
5 56 0.0776000000000000
5 58 0.0731000000000000
5 60 0.0697000000000000
5 62 0.0694000000000000
6 62 0.0894000000000000
6 0 0.0836000000000000
6 2 0.0834000000000000
6 4 0.0874000000000000
6 6 0.0936000000000000
6 8 0.107600000000000
6 10 0.148400000000000
6 12 0.205200000000000
6 14 0.272300000000000
6 16 0.333400000000000
6 18 0.390100000000000
6 20 0.456900000000000
6 22 0.501600000000000
6 24 0.550200000000000
6 26 0.595600000000000
6 28 0.627200000000000
6 30 0.642200000000000
6 32 0.642200000000000
6 34 0.627200000000000
6 36 0.595600000000000
6 38 0.550200000000000
6 40 0.501600000000000
6 42 0.456900000000000
6 44 0.390100000000000
6 46 0.333400000000000
6 48 0.272300000000000
6 50 0.205200000000000
6 52 0.148400000000000
6 54 0.107600000000000
6 56 0.0936000000000000
6 58 0.0874000000000000
6 60 0.0834000000000000
6 62 0.0836000000000000
7 62 0.103600000000000
7 0 0.0987000000000000
7 2 0.0989000000000000
7 4 0.103600000000000
7 6 0.110400000000000
7 8 0.127000000000000
7 10 0.174200000000000
7 12 0.237300000000000
7 14 0.310200000000000
7 16 0.378500000000000
7 18 0.441700000000000
7 20 0.513900000000000
7 22 0.564500000000000
7 24 0.615600000000000
7 26 0.658700000000000
7 28 0.685200000000000
7 30 0.696000000000000
7 32 0.696000000000000
7 34 0.685200000000000
7 36 0.658700000000000
7 38 0.615600000000000
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7 42 0.513900000000000
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7 46 0.378500000000000
7 48 0.310200000000000
7 50 0.237300000000000
7 52 0.174200000000000
7 54 0.127000000000000
7 56 0.110400000000000
7 58 0.103600000000000
7 60 0.0989000000000000
7 62 0.0987000000000000
8 62 0.118700000000000
8 0 0.112900000000000
8 2 0.112700000000000
8 4 0.118000000000000
8 6 0.126300000000000
8 8 0.146000000000000
8 10 0.196700000000000
8 12 0.263300000000000
8 14 0.340600000000000
8 16 0.413700000000000
8 18 0.481900000000000
8 20 0.555000000000000
8 22 0.611300000000000
8 24 0.661600000000000
8 26 0.698600000000000
8 28 0.719500000000000
8 30 0.728900000000000
8 32 0.728900000000000
8 34 0.719500000000000
8 36 0.698600000000000
8 38 0.661600000000000
8 40 0.611300000000000
8 42 0.555000000000000
8 44 0.481900000000000
8 46 0.413700000000000
8 48 0.340600000000000
8 50 0.263300000000000
8 52 0.196700000000000
8 54 0.146000000000000
8 56 0.126300000000000
8 58 0.118000000000000
8 60 0.112700000000000
8 62 0.112900000000000
9 62 0.132900000000000
9 0 0.128400000000000
9 2 0.128600000000000
9 4 0.134500000000000
9 6 0.144100000000000
9 8 0.166600000000000
9 10 0.220400000000000
9 12 0.289500000000000
9 14 0.368300000000000
9 16 0.444400000000000
9 18 0.517100000000000
9 20 0.592900000000000
9 22 0.650800000000000
9 24 0.697400000000000
9 26 0.730000000000000
9 28 0.747900000000000
9 30 0.757000000000000
9 32 0.757000000000000
9 34 0.747900000000000
9 36 0.730000000000000
9 38 0.697400000000000
9 40 0.650800000000000
9 42 0.592900000000000
9 44 0.517100000000000
9 46 0.444400000000000
9 48 0.368300000000000
9 50 0.289500000000000
9 52 0.220400000000000
9 54 0.166600000000000
9 56 0.144100000000000
9 58 0.134500000000000
9 60 0.128600000000000
9 62 0.128400000000000
10 62 0.148400000000000
10 0 0.142200000000000
10 2 0.143300000000000
10 4 0.149200000000000
10 6 0.159900000000000
10 8 0.185000000000000
10 10 0.242100000000000
10 12 0.311500000000000
10 14 0.391100000000000
10 16 0.469100000000000
10 18 0.543800000000000
10 20 0.619700000000000
10 22 0.679800000000000
10 24 0.723200000000000
10 26 0.753600000000000
10 28 0.770500000000000
10 30 0.778600000000000
10 32 0.778600000000000
10 34 0.770500000000000
10 36 0.753600000000000
10 38 0.723200000000000
10 40 0.679800000000000
10 42 0.619700000000000
10 44 0.543800000000000
10 46 0.469100000000000
10 48 0.391100000000000
10 50 0.311500000000000
10 52 0.242100000000000
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10 56 0.159900000000000
10 58 0.149200000000000
10 60 0.143300000000000
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11 62 0.162200000000000
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11 6 0.177100000000000
11 8 0.204800000000000
11 10 0.264300000000000
11 12 0.334400000000000
11 14 0.414500000000000
11 16 0.492600000000000
11 18 0.568500000000000
11 20 0.645200000000000
11 22 0.703700000000000
11 24 0.747000000000000
11 26 0.775600000000000
11 28 0.791400000000000
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11 50 0.334400000000000
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11 60 0.158500000000000
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12 62 0.177500000000000
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12 12 0.356200000000000
12 14 0.436300000000000
12 16 0.514200000000000
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13 62 0.192100000000000
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13 2 0.190000000000000
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13 6 0.211800000000000
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13 10 0.308100000000000
13 12 0.380700000000000
13 14 0.460900000000000
13 16 0.537000000000000
13 18 0.611600000000000
13 20 0.686300000000000
13 22 0.742400000000000
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