求解三维差值；已知数据如下，求大神！！

29.298196 90.912108 3569.000000
29.298473 90.931824 3569.000000
29.292922 90.954041 3653.336251
29.292922 90.987365 3776.063524
29.292922 91.009581 3857.881706
29.292922 91.031797 3939.699888
29.295697 91.070675 4083.246501
29.295697 91.079006 4113.928319
29.295697 91.103999 4205.973774
29.295697 91.120661 4267.337410
29.287370 91.153985 4393.841787
29.279042 91.187309 4520.346164
29.279042 91.209525 4602.164346
29.279042 91.242849 4724.891619
29.279042 91.270619 4827.164346
29.279042 91.298389 4929.437073
29.270715 91.331713 5055.941451
29.270715 91.342821 5096.850542
29.270133 91.342821 5096.850542
29.269259 91.346815 5110.486905
29.267510 91.350415 5124.123269
29.265003 91.353375 5137.759632
29.261910 91.355495 5151.395996
29.258441 91.356629 5165.032360
29.254833 91.356701 5178.668723
29.251331 91.355705 5192.305087
29.248175 91.353710 5205.941451
29.245579 91.350852 5219.577814
29.243720 91.347325 5233.214178
29.242725 91.343370 5246.850542
29.242662 91.339256 5260.486905

分别是经纬度和高度。