Clipping property doesn't work?

Question

Grzegorz Knor 2013-11-21

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/107034-clipping-property-doesn-t-work

编辑： dpb 2013-11-21

采纳的回答： dpb

在 MATLAB Online 中打开

It seems that clipping property doesn't work for plot objects like bar, stem, stairs.

See simple exapmle:

plot(1:10,5:-0.5:0.5,'r')
xlim([0 10])
ylim([0,5])
hold on
h=plot(1:10,2:.5:6.5);
set(h,'Clipping','off')

The result is as follows:

And it is OK.

But if i change second plot command to bar, stairs or stem, the results are:

Is this the correct behavior of MATLAB?

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Answer 1

dpb 2013-11-21

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https://ww2.mathworks.cn/matlabcentral/answers/107034-clipping-property-doesn-t-work#answer_115926

编辑：dpb 2013-11-21

在 MATLAB Online 中打开

Well, "correct" is in eyes of beholder...it is the behavior as implemented; whether the other plot types should inherit 'clipping' property state from other is a design decision.

After your above from the command line...

>> hb=bar(1:10,2:.5:6.5);
>> get(hb)
          Annotation: [1x1 hg.Annotation]
         DisplayName: ''
         HitTestArea: 'off'
        BeingDeleted: 'off'
       ButtonDownFcn: []
            Children: 189.0079
            Clipping: 'on'
...
>> get(get(hb,'children'))
  AlphaDataMapping = scaled
  Annotation = [ (1 by 1) hg.Annotation array]
  CData = [ (4 by 10) double array]
  CDataMapping = scaled
        ...
  BeingDeleted = off
  ButtonDownFcn = 
  Children = []
  Clipping = on
        ...
...

So, to turn the effective clipping property for these child objects you've got to go handle-diving and get to the bottom...

>> set(get(hb,'children'),'clipping','off')

will do so for the bar plot; similar machinations for the others.

ADDENDUM:

Note that for consistency the behavior is similar in that plot returns a line object handle whereas the others are composite objects the actual data drawn of which is at a lower level. Hence the need to "handle-dive" into the guts to get the point level at which the 'clipping' property needs must be set.