Re: warning:TransformPostDraw:: shading region below res@gsnXYBarChartOutlineOnly

Dear Mary and NCL,

Once I applied this subroutine for panel plot,
I produced these error:

warning:TransformPostDraw: tfPolyDrawList element 0 is invalid
warning:TransformPostDraw: tfPolyDrawList element 1 is invalid
warning:TransformPostDraw: tfPolyDrawList element 2 is invalid
warning:TransformPostDraw: tfPolyDrawList element 3 is invalid
warning:TransformPostDraw: tfPolyDrawList element 4 is invalid
warning:TransformPostDraw: tfPolyDrawList element 0 is invalid
warning:TransformPostDraw: tfPolyDrawList element 1 is invalid
warning:TransformPostDraw: tfPolyDrawList element 2 is invalid
warning:TransformPostDraw: tfPolyDrawList element 3 is invalid
warning:TransformPostDraw: tfPolyDrawList element 4 is invalid
warning:TransformPostDraw: tfPolyDrawList element 0 is invalid
warning:TransformPostDraw: tfPolyDrawList element 1 is invalid
warning:TransformPostDraw: tfPolyDrawList element 2 is invalid
warning:TransformPostDraw: tfPolyDrawList element 3 is invalid
warning:TransformPostDraw: tfPolyDrawList element 4 is invalid

my snapshot codes look like this;

  plot(0) = gsn_csm_xy(wks,xx(0,:),yy(0,:),res)
  customize_bar_chart(wks,plot(0),xx(0,:),yy(0,:),xref_line)

  plot(1) = gsn_csm_xy(wks,xx(1,:),yy(1,:),res)
  customize_bar_chart(wks,plot(1),xx(1,:),yy(1,:),xref_line)

  plot(2) = gsn_csm_xy(wks,xx(2,:),yy(2,:),res)
  customize_bar_chart(wks,plot(2),xx(2,:),yy(2,:),xref_line)

  plot(3) = gsn_csm_xy(wks,xx(3,:),yy(3,:),res)
  customize_bar_chart(wks,plot(3),xx(3,:),yy(3,:),xref_line)

 resP = True
 resP@gsnPanelYWhiteSpacePercent = 5
 resP@gsnPanelXWhiteSpacePercent = 5
 gsn_panel(wks,plot,(/2,2/),resP)

;;==============

xx and yy were produced from pdfx. Actually I also wonder how kind of
setting that I need to do, if I want to divide the bins with the same size
(ranges), because once I set nbins=40, it directly produced different size
of bins. Thanks for any hints.

 Erika

On Wed, Feb 26, 2014 at 8:33 PM, Erika Folova <e.folova@gmail.com> wrote:

> Thanks Mary,,
> I hope this subroutine can be added to the main graphic library/functions
> in the next release of NCL.
>
> Thank you very much,
> Best,
>
>
>
> On Thu, Feb 27, 2014 at 4:24 AM, Mary Haley <haley@ucar.edu> wrote:
>
>> Erika,
>>
>> We don't have a specific function or set of resources to do what you're
>> asking.
>>
>> However, you can create your own subroutine that adds the required filled
>> area using gsn_add_polygon.
>>
>> I created an example that shows how to do this, and also shows how to
>> draw the reference line and outlines yourself, so you can better control
>> the order that everything gets drawn in.
>> See example "bar_17.ncl" at:
>>
>> http://www.ncl.ucar.edu/Applications/bar.shtml#ex17
>>
>> --Mary
>>
>>
>> On Feb 24, 2014, at 10:07 AM, Erika Folova <e.folova@gmail.com> wrote:
>>
>> > Dear NCL,
>> >
>> > Will helped me on this issue, but I still did not get the result as I
>> expected.
>> > What I need is to shade the region below the XYBarchart outline that is
>> less than zero (value) indicating by xRefLine.
>> > However, I have'nt got any trick, The example of the figure is in the
>> attachment.
>> > I fully understand what Willi suggested by overlaying the histogram,
>> but I prefer to
>> > have only the outline chart rather that the bar. Any helps would be
>> really appreciated.
>> >
>> > Thanks for any tricks.
>> > Best
>> >
>> >
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>>
>

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Received on Wed Mar 5 03:36:20 2014