[ncl-talk] Can ncl do map plotting like the example?

[Mary Haley]

Tao,

It looks like you have three plot elements you are asking about.

[1]

The first is an arrow pointing up to show North. We don't have the exact
type of arrow that you indicated, but you can draw any character from any
one of our font tables on a plot using gsn_add_text.

See here for a list of fonts:

http://www.ncl.ucar.edu/Document/Graphics/font_tables.shtml

Click on any of them, like "math-symbols", "text-symbols", or "weather1"
and you may see an arrow you like. Once you find one, let's say it was the
"-" symbol in font table 34, then you can add it to your map with
gsn_add_text.

[2]

The second is a smaller map drawn on top of a bigger map.  You can simply
create two maps, using vpXXX resources to make the second one much smaller,
and to change the location of where it's drawn.

[3]

The third element is similar to a labelbar, but the one major difference is
that the boxes are not equal in size. Unfortunately, there's no automatic
way to draw a legend/labelbar like this that represents distance. You can
certainly create one by hand, but this is going to be rather tedious.

I've attached a script that draws the first two elements of this plot.You
will need to customize this plot to get the exact results you want, but
hopefully this gives you a start.

 For the labelbar, you can try creating one yourself using
gsn_create_labelbar, or gsn_add_polygon.

See these pages for some examples:

http://www.ncl.ucar.edu/Applications/labelbar.shtml
http://www.ncl.ucar.edu/Applications/polyg.shtml


--Mary


On Sun, Dec 11, 2016 at 6:59 PM, Tao Lu <hakufu.asano at gmail.com> wrote:

> Hello ncl-talk
>
>
> ​
> Can ncl create ruler of map like above?
> The parts of circled by red line are features which I would like to get.
>
> Thank you.
> Tao
>
> --
> ******************************************************
> 盧 涛 (ル タオ) 修士課程2年
>
> 〒112-8551 東京都文京区春日1-13-27
>
> 中央大学理工学研究科都市環境学専攻
>
> 河川・水文研究室（山田正教授）
>
>
> TEL: 03-3817-3406;   Phone: 070-2188-7509
> Email1: hakufu.asano at gmail.com <mail%3Amet.yamos at gmail.com>
> Email2: lutao at civil.chuo-u.ac.jp <mail%3Ayamoto at civil.chuo-u.ac.jp>
> *******************************************************
> ******************************************************
> Tao Lu    (M. Eng)
> Laboratory of River Engineering and Hydrology,
> Dept. of Civil and Environmental Engineering,
> Graduate School of Science and Engineering,
> Chuo University
>
> 1-13-27,Kasuga,Bunkyo-ku,Tokyo
> 112-8551, Japan
> TEL: 03-3817-1805;   Phone: 070-2188-7509
> Email1: hakufu.asano at gmail.com <mail%3Amet.yamos at gmail.com>
> Email2: lutao at civil.chuo-u.ac.jp <mail%3Ayamoto at civil.chuo-u.ac.jp>
> *****************************************************
>
> _______________________________________________
> ncl-talk mailing list
> ncl-talk at ucar.edu
> List instructions, subscriber options, unsubscribe:
> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman.ucar.edu/pipermail/ncl-talk/attachments/20161211/a79cc7f4/attachment.html 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: ??.jpg
Type: image/jpeg
Size: 147430 bytes
Desc: not available
Url : http://mailman.ucar.edu/pipermail/ncl-talk/attachments/20161211/a79cc7f4/attachment.jpg 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: map_on_map.png
Type: image/png
Size: 111375 bytes
Desc: not available
Url : http://mailman.ucar.edu/pipermail/ncl-talk/attachments/20161211/a79cc7f4/attachment.png 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: map_on_map.ncl
Type: application/octet-stream
Size: 2442 bytes
Desc: not available
Url : http://mailman.ucar.edu/pipermail/ncl-talk/attachments/20161211/a79cc7f4/attachment.obj