[ncl-talk] no background color for gsn_csm_streamline_contour_map

[Mary Haley]

Hi Xiaoming,

In general, I recommend not using the gsn_csm_streamline_contour_map
function, because it's harder to control the order of everything that gets
drawn.

I suggest something like this:

streamline_plot = gsn_csm_streamline(wks,u,v,stres)
contour_plot    = gsn_csm_contour_map(wks,x,cnres)

overlay(contour_plot, streamline_plot)
draw(contour_plot)
frame(wks)

You will need to split up your current "res" resource list to those that
contain contour and map resources (cnres), and those that contain just
streamline resources (stres).

Good luck,

--Mary


   - call gsn_streamline to generate the streamlines
   - call gsn_csm_contour_map to generate the contours over a map
   - overlay(


On Thu, Jan 22, 2015 at 7:25 AM, xiaoming Hu <yuanfangcan at hotmail.com>
wrote:

> Karin
>
> Thanks a lot.  I added
>
>   res at gsnDraw      = False
>   res at gsnFrame     = False
> before   plot                 = gsn_csm_streamline_contour_map(wks,u,v,x,res)
>
> and
>
>   draw(plot)
>   frame(wks)
> after.
>
> But I still do not see the background contour.
> The interesting thing is that the colour bar for the background contour is
> drawn, but not the contour itself.
>
> Thanks!
> Xiaoming
>
>
> ------------------------------
> Date: Thu, 22 Jan 2015 13:47:11 +0100
> From: meier-fleischer at dkrz.de
> To: ncl-talk at ucar.edu
> Subject: Re: [ncl-talk] no background color for
> gsn_csm_streamline_contour_map
>
>
> Hi Xiaoming,
>
> you should set
>
>   res at gsnDraw      = False
>   res at gsnFrame     = False
>
>
> if not set to False, the streamline plot will overwrite the contour map.
>
> Bye,
> Karin
>
> Am 22.01.15 um 00:38 schrieb xiaoming Hu:
>
>    Hello
> I would like to overlay streamline on terrain height using
> gsn_csm_streamline_contour_map.
> But I only get streamline, but no terrain height. See the following
> figure.
> Anybody knows what is happening? I attached my ncl script.
>
> Thanks a lot
>
> Xiaoming
>
>
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