plot different trajectories with different time steps

Barbara

2014 8 12

0 个回答

8 次查看（30 天）

0 个投票

Hello,I would like to plot air parcel trajectories. My output data are: in the first column the steps, in the 2nd and 3rd column the geographic coordinates. To the first airparcel belongs 4 steps (1..4), to the second one 3 (1..3) to the 3rd one 3 (1..3)..ect...(These steps are after eachother in the same column). I would like to plot the air parcel positions with a marker and connect them, but my problem is that to different air parcels belong different steps. How could I plot separately the first, second, 3rd..ect trajectories? Thanks for any help!

4 个评论
显示 2更早的评论隐藏 2更早的评论

Michael 2014-8-13

And you would like to plot these trajectories on top of a map projection?

Barbara 2014-8-13

Thx, yes basically they look like this as you mentioned and I need to separate them, I will change that the step instead of 0 starts with 1 and later on put them on a map projection.

So I would say, the positions:

lon(1:k1),lat(1:k1)

lon(1+k1:k1+k2),lat(k1+1:k1+k2)

lon(k1+k2+1:k1+k2+k3),lat()

ect

where k is the length of each trajectory, in the case of 1 2 3 is k=3, I have a separate column for k as well, so generally I would write:

for i=1....n lon[(sum(k(1:i))+1):(sum(k(1:(i+1))],lat(same)

and I have to put in the k column to the first place a 0.

请先登录，再进行评论。

请先登录，再回答此问题。

Follow Question