[问题] 求助 origin 3D 散点图 图例生成难题

[go2win]

我最近做了一个试验，做了因子分析，得到50个样品（可以分为7类）的3个因子数值。用origin做散点，PLOT-3D (XYZ)- 3D scatter 图像良好。

我用颜色来区分不同类别，希望能有一个图例，显示不同的样品类别，对于不同的颜色，这个图例总是做不出来。用new legend，只能显示第一个图例（第一类）。

请问各位高手，我怎么才能作出完整图例来呢？我的qq是： 1269762597
.

数据如下：

-924.28532 -256.25565 76.85015 an
-891.77318 -193.22966 84.70571 an
-902.51286 -254.60815 66.21363 an
-923.86742 -186.83427 105.30025 an
718.73178 -311.19967 141.40888 bc
742.27218 -444.92376 133.24849 bc
652.98814 -439.44364 161.14584 bc
647.14194 -462.50896 150.05255 bc
694.94635 -464.34231 148.11432 bc
20.05183 318.17143 105.65677 bj
80.6055 329.48524 153.56882 bj
-581.68362 -277.68483 32.0031 bj
-681.52684 -238.44398 66.42261 bj
-657.23963 -246.03693 50.44123 bj
-890.11751 -190.86664 71.834 bj
-800.9377 -273.44345 31.52657 bj
-810.92212 -208.9511 72.47699 bj
-854.22719 -303.66664 64.81824 bj
-836.21101 -171.55555 45.97949 bj
-853.52163 -275.43849 71.29805 bj
-731.37086 -207.74899 62.45171 gh
-222.8071 -307.92198 -31.1486 gh
658.49981 -469.57292 121.65067 gh
560.53588 -412.42811 64.12766 gh
652.17471 -409.39548 96.27653 gh
531.38909 -314.19598 40.44211 gh
326.20625 -61.2574 110.94008 gh
2.93291 107.80159 113.29473 gl
265.56699 -23.64452 -42.22324 gl
311.21926 288.86599 136.0279 gl
122.42142 326.22723 129.62053 gl
243.10122 322.80429 162.02429 gl
162.20012 272.97244 192.39729 gl
101.24853 270.26722 176.6527 sd
117.7775 308.41615 81.74072 sd
303.66283 -164.25688 -161.85118 sd
618.34921 -172.86557 -36.98872 sd
511.12304 -52.52891 -148.28794 sd
369.71487 -117.12232 -176.25929 sd
375.12159 -18.34209 -181.90581 sh
544.79626 99.12608 -73.57617 sh
470.91154 -62.77005 -118.67769 sh
25.10282 346.86118 150.5749 sh
-32.30435 302.63637 110.1555 tw
-42.60711 345.8576 77.17115 tw
359.50043 270.63894 43.80986 tw
178.51085 155.23505 -9.60683 tw
433.25119 186.2387 128.34629 tw
172.85805 140.67996 93.54822 tw
-789.11685 -186.45845 80.04059 tw
195.57206 -195.75279 -121.26185 tw
371.18525 21.48372 -104.29581 tw
100.14026 -7.03025 -121.83312 tw