Is it good or bad thing to use handle() constructor on MATLAB Handle Graphics numeric handles?
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Using handle() on a numeric graphics handle turns it into an object, e.g.
ax = handle(gca); % ax is a scalar object of class axes
h = plot(1:10); % h is a scalar double
lines = handle(h); % lines is a scalar graph2d.lineseries
The advantage of this form are several:
- In both the command window and the workspace browser it is easier to see what these items are - you don't have to do get(h, 'Type')
- The properties auto-complete, which is much easier, less memorising, less typing and fewer errors
- You can get straight to the Property Inspector from the workspace browser
- You avoid the need to do all this tiresome get(h, 'is it Xtick') and set(h, 'or was it xTicks') business, which makes code easier to read and write and saves on quoting strings (which always slows me down)
Having said all this I still mostly carry on with habit using set and get! The alternative is not shown in the Help, or any of the examples, or most of the entries on File Exchange. Why so? would you agree with me set and get is a pain in the butt, or am I missing something?
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Sean de Wolski
2013-1-10
编辑:Sean de Wolski
2013-1-24
Edit
I spoke with the developer who develops uicontrols etc. and he said this approach is okay and good if you're smart and careful about it.
Setting the object properties this way does not do the standard error checking so it is possible to corrupt the object. This would be one major reason to avoid it.
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per isakson
2013-1-10
- it is good to stick to documented features
- see http://undocumentedmatlab.com/, search for handle
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