[Kst] [Bug 91668] add support for orthonormal axes in 2D plots

[Nicolas Brisset]

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http://bugs.kde.org/show_bug.cgi?id=91668        




------- Additional Comments From nicolas.brisset eurocopter com  2004-10-19 18:42 -------
Zooming orthonormal plots is tricky indeed... 
I'd suggest the following: add the key shortcuts you suggested (plus corresponding entries in the contextual menu). 'n' means keep current X, zoom Y (in or out as needed) to make the axes orthonormal. 'N' means the same but keeps Y and changes X. It could be 'one shot actions', i.e. subsequent behavior is the usual as if that option did not exist.
After such an action, it should be possible to scroll as that does not break orthonormality. If the user wants to see more, he will have to zoom the usual way and then select the right 'normalization' action. I think this behavior is acceptable for such a feature (not too common but important in some cases).