[ncl-talk] margin top of viewport?

[MeteoBB]

Hi,

first I also thought about the labelbar.

I've tested the following:
*res at lbTitleOn = True*
and then :
*res at lbLabelBarOn = False*

Result is attached. No changes in die viewport height.

Regards.

Am 21.02.2019 um 17:41 schrieb Adam Phillips:
> Hello,
> I would speculate that it has to do with the label bar, as in the 
> labelbar is counted as part of the plot height. Note the height of the 
> plot itself is not equal to 0.3. Try temporarily turning off first the 
> labelbar title, and then the entire labelbar and see if that corrects 
> the issue. If it does, you can always call gsn_labelbar_ndc (example 
> of use  instead of letting the plotting function handle the plotting.
> gsn_labelbar_ndc documentation: 
> https://www.ncl.ucar.edu/Document/Graphics/Interfaces/gsn_labelbar_ndc.shtml
> Script that uses gsn_labelbar_ndc: 
> https://www.ncl.ucar.edu/Applications/Scripts/maponly_6.ncl
>
> Hope that helps!
> Adam
>
>
> On Thu, Feb 21, 2019 at 7:03 AM MeteoBB <info at meteo-bb.de 
> <mailto:info at meteo-bb.de>> wrote:
>
>     Hi all,
>
>     to get space in top of the plot i tried to set the viewport
>     parameters manually in NDC.
>
>     res at vpXF        = 0.2
>     res at vpYF        = 0.8
>     res at vpHeightF   = 0.3
>     res at vpWidthF    = 0.3
>
>     As you can see in die picture, the x-coordinate is correct (0.2).
>     But the y coordinate of the viewport isn't 0.8 (it is 0.784).
>     Why? Is that because of my lat/lon settings for the contour plot?
>     Any ideas?
>
>     Regards.
>
>     Am 19.02.2019 um 05:49 schrieb Rick Brownrigg:
>>     Hi,
>>
>>     I have to wonder if you might have better luck trying your
>>     annotations in NDC space. There are a number of functions named
>>     "gsn_XXX_ndc() that operate in this coordinate system. The
>>     function "drawNDCGrid()" can be helpful in understanding what's
>>     going on.
>>
>>     http://ncl.ucar.edu/Document/Functions/Shea_util/drawNDCGrid.shtml
>>
>>     HTH...
>>     Rick
>>
>>     On Mon, Feb 18, 2019 at 5:26 PM MeteoBB <info at meteo-bb.de
>>     <mailto:info at meteo-bb.de>> wrote:
>>
>>         Hi,
>>
>>         i have a map with a countur plot and want to add above the
>>         map a box with some infos (see the attached pic).
>>         Drawing the box is no problem, but when i turn off the
>>         MainString, then there is no area left to draw my box,
>>         because the
>>         map is slipping up. Yes, i could leave the MainTitle empty.
>>         But this is not satisfying.
>>
>>         Tried setting:
>>         *res at gsnBoxMargin = 0.05 *
>>
>>         seems to be a good start. But is there a resource only for a
>>         margin-top?
>>         Or do i have to set the viewport manually with *vpXF*,*vpYF*,
>>         *vpWidthF*, *vpHeightF*?
>>
>>         Thanks.
>>
>>
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>
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>
> -- 
> Adam Phillips
> Associate Scientist, Climate and Global Dynamics Laboratory, NCAR
> www.cgd.ucar.edu/staff/asphilli/ 
> <http://www.cgd.ucar.edu/staff/asphilli/> 303-497-1726
>

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