grads化流场图怎么调疏密程度

一颗梅子在南京

用grads画200hpa流场图，太密集了，用了strmdcn调整了疏密程度，但是还是很密集，这要怎么处理？
'set z 19'
'set gxout stream'
'set strmdcn 10'
'd u;v'

river

能不能专业点，好好看看控制流线疏密的命令到底是什么！
set strmden / set strmopts

set strmden density <arrow_spacing> <arrow_size> <arrow_type>

This command controls the appearance of the streamlines, drawn with 'set gxout stream'.

density        an integer between -10 and 10. Negative values are for high-res grids. The default value is 5.
arrow_spacing  a real number > 0.001 that controls the distance (in page inches) between arrows on each streamline
arrow_size     a real number >= 0.0 that controls the size (in page inches) of the arrows. The default value is 0.05.
arrow_type     may be 1 (for open arrow heads, "\/") or 2 (for closed arrow heads, filled triangles). The default value is 1.

Usage Notes

The optional arrow_spacing, arrow_size, and arrow_type options as well as support for negative density values for high-resolution grids were introduced in version 2.0.0.

'set strmopts' is an alias for 'set strmden'.

传说中的谁

某个 版本的适用手册里的一个笔误，应该是strmden，不知道害了多少人

一颗梅子在南京

river 发表于 2017-1-18 08:19
能不能专业点，好好看看控制流线疏密的命令到底是什么！
set strmden / set strmopts

啊啊啊，谢谢～